» Blender 2.71.3 - Fastest build: CUDA + OSL (added CUDA 5.0)
Updated 13 hours ago (that is 14:10 July 28th, 2014)
(566)  471,693

Blender 2.71 fastest build with CUDA support, with 2.x, 3.x and 5.0 CUDA kernels....


Here is Blender Fastest build, now compiled with 2.x and 3.x CUDA Kernels, for GPU support.It doesn't matter whether you just got a brand-new Nvidia Card, or you're happy with your 9800 GT: this build should work with any CUDA-Capable card. 











About old GPUs and CUDA problems:


 If CUDA doesn't work with your GPU, go to Render panel, and change Feature Set, from "Supported"  to "Experimental".Just keep in mind that "Experimental" means some things won't work as expected.




About the Contrib Add-Ons


The Contrib Add-Ons are now in a separated category called "Testing"








I've carried out render tests of different scenes using Blender's Internal Rederer, and comparing this to many other x64 (and even x86 optimized) builds, and renders were always faster using this optimized build, that's compiled right from the trunk, therefore without any cut-outs.


Tested on Windows 7 x64, Core 2 Duo E7500 running at default clock. (2.93 GHZ)


Please, test it in your machine and give feedback about its performance.





Enabled features:






Bundled Python
Game Engine
Blender Player


Cycles Render Engine (CPU and CUDA)




libsndfile (not tested)
FFTW3 support (Used for smoke and audio effects)




CINEON and DPX Image Support
image FrameServer Support for rendering
HDR Image Support


Other features:


Physics Engine
3D Mouse
Best LZMA compression, (used for pointcache)
Fast LZO compression (used for pointcache)
OpenCollada Support
OpenMP support, for Parallel code execution
SSE optimizations for the ray Tracer (not tested if it's actually effective)
Samplerate conversion
SDL support (sound and joystick)
International fonts and text (I18N)




Features that aren't available:


Jack support, QuickTime


1 hour 40 min ago
Install_deps: Raise openexr/ilmbase magic numbers, looks to be needed...

Btw, if someone can explain me why OPENEXR_FORCE_REBUILD does not work like
all other force options... :/
1 hour 51 min ago
OSX/buildbot: Fix 32bit compile by removing OSL/LLVM and add back UTF to Collada
- due OSL i386 never worked on OSX, the new libs do not even contain this arch !
- As we had to fix duplicated symbols from generic UTF finctions same in LLVM and COLLADA,
LLVM-less build must have UTF lib reenabled
2 hours 20 min ago
As suggested by Campbell, rather use BVHTree to get len_diff in this morning's fix.

Note than it's using nearest faces, since it showed to be much more performant than
nearest vertex (quite odd, it's about 40% slower for the first element, then 50 times quicker
for all others, as if BVH was cached, and building face was slower than verts one,
but then using it, much quicker!).
3 hours 1 min ago
CMake: add glew-mx library
3 hours 11 min ago
CMake: use our template for finding the glew library
3 hours 38 min ago
Fix bundling of requests on debian-like systems

Couple of issues:

- Debian systems doesn't use site-packages but uses
dist-packages instead.

- Requetss from ubuntu repository depends on urlllib3
and chardet, which also implies six. copy those libs
as well.

I know it's all rather annoying, but no that much
choise is in here..
3 hours 54 min ago
Switch buildbot to new llvm/oiio/osl
6 hours 1 min ago
Make requests python package to be detected in the same way as numpy

This solves missing requests package reported on the systems where it's
located in dist-packages rather than in site-packages.

To do this there's now a helper macros which handles both requests and
numpy now and could be used for more packages in the future.

Reviewers: campbellbarton

Reviewed By: campbellbarton

Differential Revision: https://developer.blender.org/D686
7 hours 33 min ago
Fix T41191: Face snapping doesn't work properly.

Issue was caused by rB47ec0394ca3d, which disabled BBox check in editmode - but bbox check was also
setting `len_diff`, which is mandatory when doing ray_start_local correction for ortho view...

Now, in this case, we do a quick rough compute of len_diff from vertices coordinates (accuracy is not
needed here, we just have to be sure corrected `ray_start_local` remains 'before' (outside) of the
9 hours 36 min ago
Fix T41206: Render Border - Operator Panel - Only Camera - Broken?

This is rather internal use only, no need to expose this option to
the redo panel.
9 hours 43 min ago
Fix T41201: Blender Crashes when UV Editing

Disable adding snapping point outside of 3D space for now,
visualization of the points is not implemented outside of
this space and silently adding them wouldn't really be a
good idea.
10 hours 9 min ago
10 hours 12 min ago
Reduce OM limit for sculpting after discussion with Antony

That's rather tricky to think of a good threshold here, and
maybe we'd better use something based on the number of faces

Anyway, let's give it a try this way and see what happens.
10 hours 22 min ago
Fix T41221: 3d view rendered mode crashes on new scene
10 hours 40 min ago
Fix T40831: Shrink wrap modifier causes very high CPU usage when targeting meshes with shaped keys

Same issue as revious one -- need to start OMP threads only
when there's enough data to crunch.
10 hours 46 min ago
RNA: check for valid ranges with int properties (C11 only)
11 hours 7 min ago
Fix T41193: 2.71 use 100% of CPU at sculpt

Issue wascaused by the famous OpenMP crap in MSVC2013,
so only way is to use openmp threading if number of BVH
nodes is high enough.

Made it 8 for now, which seems to work rather fine on my
laptop and adult dragon from sintel. But maybe it's to be
adjusted a bit more.
13 hours 7 min ago
Fix invalid RNA limits
15 hours 53 min ago
UI: Change appearance for panel drag area (D637)

Patch by blakenator with own edits
1 day and 7 hours ago
Fix T41139: Cycles Hair BSDF roughness problem


Note 1: It requires Microsoft Visual C++ 2008 SP1 Redistributable Package (x64) to be installed


Note 2: A small add-on is you can launch Blender from AN_Priority.bat (located in the same folder than the Blender executable).


This simply runs Blender with priority set to "ABOVENORMAL", and is useful if you have heavy tasks running in background, and want Blender to have precedence to use processor's resources.As stated above, the bat is just a small add-on: It isn't, in any way, the reason why this build is faster than the other ones.


Still, the render tests I've done were performed WITHOUT launching Blender with high priority. error increased as the curve got longer.

315 Comments so far. Leave yours.
17:20 April 28th, 2014
well nope. actually it doesnt work
17:03 April 28th, 2014
nevermind. i renamed kernel_sm_35.cubin to kernel_sm_50.cubin and it works now.
16:59 April 28th, 2014
please do something about cuda kernel 5.0
i was using the kernel_sm_50.cubin from here: http://martijnberger.nl/file/2.70_sm50.zip and everything worked fine but in the latest releases i get this:
cuda error: not found in cuModuleGetGlobal(&cumem, &cubytes, cuModule, name)

is there anything you can do?

thank you.
02:00 February 9th, 2014
CUDA 2.0 support is the minimum requirement, 1.x is no longer available for new builds (support dropped in source code, it's not just a compile option). You can find out what your GPU supports here: https://developer.nvidia.com/cuda-gpus
07:21 November 13th, 2013
Joining the previous question about cuda 1.1 cause I can't get my 8800GT to work. Keep getting "CUDA device supported only with compute capability 2.0 or up, found 1.1.".
Also found a bug. When using shrinkwrap and target it on an object with subdivision modifier and then, in edit mode, trying to move some vertices of the target object with snapping to the surface turned on, you will get a crash. But this is actually a bug of the blender and not your particular build. I only post it here because blender bug tracker is closed until tomorrow.
05:20 August 29th, 2013
Are you still compiling with CUDA 1.1? Tried this build on my old Alienware with GTX 280m graphics cards- getting the "Cuda Device requires compute capability 2.0, found 1.1" even when using experimental mode.
09:28 April 17th, 2013
309 . alb3530 (builder)
ymtaufik: what kind of error you are seeing?
20:03 March 20th, 2013
Dear Sir, could you please help this build with 32 bit (x86) ?, I have an old card (sm 12) and i have try to build blender cuda for old card but only resulting on error in my compiler, thanks in advance
17:18 February 10th, 2013
Dude your build rocks! My render speed tripled!

Thanks so much for posting this!
05:17 February 5th, 2013
nice job nick bishop looks like you fixed those vertices afterall
12:49 February 3rd, 2013
ok i think that the sculpt auto re-topology feature needs to support self intersection so you can dig holes through things because that's what I need also I think it needs to
clean up the mesh a Little when done currently it leaves some floating vertices and edges hanging around that are down right ugly and could be fixed with a simple script
15:54 January 21st, 2013
304 . alb3530 (builder)
Thanks for the feedback, guys ;)

Best regards
18:25 January 17th, 2013
All is good here. GPU rendering works now. Good stuff.
02:59 January 17th, 2013
Alb, That's fixed it and I can now render out with GPU GTX 660 TI and also I am also able to use rendered mode in the viewport without it being corrupted. Many Thanks :)
16:37 January 11th, 2013
301 . alb3530 (builder)
vitos1k: Using Cuda 5.0 here

Maybe I could try again, with 4.2 instead...But this way, I believe GTX 6XX will still be unable to render

Best regards
13:05 January 9th, 2013
someone told that yours builds works fine, while official buildbot and other built with 4.2 toolkit failed
I can't launch your builds, windows gives error about parallel configurations of the app
12:59 January 9th, 2013
I was wondering wat CUDA Toolkit are you using for building CUDA kernels?
Current trunk built with MSVC and cuda kernels built with 4.2 Toolkit are failing to render on GPU's with sm_20 compute capability.
10:31 January 9th, 2013
Hey, just an update, the same issue I had previously is still present. Just so you are aware.

10:44 January 6th, 2013
I only have a problem with this one, and the 2.64 version worked great.
00:55 January 6th, 2013
Alb, I'm sorry to say that it's only yours I get it with. There are a few error messages reported when rendering with GPU and they can be found here https://www.dropbox.com/s/qfgoh7r6mmucnfl/Blender%20GPU%20Error.png

Hope you can get it fixed as I really liked your builds
00:01 January 6th, 2013
Hey alb.,

I just downloaded your new build and the problem seems to still persist. With that said, however, it does not seem to exist in the other builds that I have tried it on. Let me know if there is anything that you want me to try to trouble-shoot. Thanks.
18:14 January 5th, 2013
294 . alb3530 (builder)
casvlaco, nessie and B-Rae: did you notice that problem with all recent builds, or only mine isn't rendering on your GPU?
06:12 January 2nd, 2013
I tried to render Mike Pan's Cycles render benchmark test (http://blenderartists.org/forum/showthread.php?239480-2-61-Cycles-render-benchmark) in cycles with the build and it will not render.

I simply get a black render result and an error on the display (http://i49.tinypic.com/34gpx7k.jpg) as well as some errors in the console (part 1: http://i47.tinypic.com/1zofais.jpg, and part 2: http://i49.tinypic.com/2ecgc9u.png). Both the Supported and Experimental settings yield the same results. I have also tried other files and the same issue arises.

My Specs are as follows:

NVIDIA GeForce GTX 670
32 gb of RAM
windows 8 - 64-bit

Please let me know if you need any more information or if I am doing something silly that can easily be fixed. Thanks!
01:12 January 2nd, 2013
Since i have the same problem as nessie, how do you post pictures?
14:36 December 29th, 2012
291 . alb3530 (builder)
amaranth: have you tried with default settings?
Go to "%appdata%\Blender Foundation\Blender", rename the folder called "2.65" to something like "2.65_current", and test if testing addons work that way....

After testing it, delete the folder "2.65" that was created by Blender, and rename back the folder "2.65_current" to "2.65"

nessie: Could you please post a secreenshot of your problem?

Best regards
03:07 December 28th, 2012
Alb, I am still unable to render with cycles using the GPU, although i can using the CPU. Also, blender no longer crashes when using rendered mode but the screen is corrupt
18:05 December 24th, 2012
hello, alb. love your builds. i have your 2.65.1 version, but recently whenever i install your updates, some of the testing addons won't work or CHECK in the preferences.
02:57 December 24th, 2012
nessie: I have the exact same problem, but the 2.64 build worked just fine. (GTX 660 TI)
13:09 December 19th, 2012
Can anyone tell me if there is a reason why Cycles renders to a black screen (Blank) I have the GTX 660 TI. For some reason every cycles blend file I render is blank and when I try to run in rendered preview mode Blender crashes
11:26 December 19th, 2012
286 . alb3530 (builder)
jkbwq: clay render should be working now.

Best regards
13:23 December 15th, 2012
@Alb: Thanks, man. I've been experimenting with it, and have got some really realistic Cycles character hair going now. But I have to open the character from your build that I made into the other build, since it doesn't even have Collada import capability. But it is a great patch. I can't wait till that's in Fastest builds. Having Cycles hair (and eventually volumetric rendering...) will make Cycles a serious hardcore monster!
Thanks again for everything you and the devs do. Have a Merry Christmas.
13:53 December 14th, 2012
284 . alb3530 (builder)
jkbwq: "Clay render" addon is not here.

I'll see what i can do...

Best regards and thanks for reporting
13:47 December 14th, 2012
283 . alb3530 (builder)
MartianStories: Thanks for your words.
That feature is a patch, and it's not in trunk yet...that's why I've not included it....

I'll look forward to create a new build with the patch when I have some time.

Best regards
13:12 December 14th, 2012
Thanks, Alb, for another great build. I've always been faithful to your Fastest builds, but I have been experimenting with one of the new builds that has Cycles Hair Strand capability (although it does NOT have many of the great features that have come standard in your build since forever.)
Can you tell us when your Fastest builds will have the new Cycles Hair Strand rendering capability?
18:39 December 11th, 2012
is it me or the render_clay.py is missing?
06:59 December 3rd, 2012
Now the work cycles
I installed a new version of the drivers :)
But it is slower:
Using the file:
Blender 2.61 Cycles Benchmark rev2

Render time> 01:16.25

8723_blender-2.64-- 52,157 --- unified-contrib-add-ons --- --- fastest cuda
Rendertime> 01:10:58
06:25 December 3rd, 2012
Cycles cuda not work in my GTX670 render BlackScreen
Several versions of blender 2.64.9 do not work!
The older versions work ok
I have already installed the cuda tookit the most current drivers.
I noticed that the old versions have the render faster:
8723_blender-2.64-- 52,157 --- unified-contrib-add-ons --- --- fastest cuda
Compared with its predecessors that I downloaded

Why is this happening? Is there a way to solve?
16:24 November 25th, 2012
278 . alb3530 (builder)
CL88: Both "Remove Doubles" and "Delete" > "Edge Loop" are working normally...Revision: 52546

Best Regards
03:20 November 23rd, 2012
23 nov, "Remove Doubles" is not working. Remove edge loop - not works correctly !!
17:07 November 11th, 2012
initiallly I thought 2.64 was slower than 2.63. BUT found that tile settings are very important, and now 2.64a is as fast or faster than 2.63a.

I tried your build 52016 and found it be comparable to 2.64a. Using Mike Pan's benchmark, 2.64a using 2x2 tiles renders in 43sec, 52016 default tile setting (120x67)
= 1:13, 500x500 = 48 sec.

How much faster is 52016 than 2.64a on your machine? What tile settings/pixel settings do you use?
Thanks for working on Blender! =)

Zotac GTX 580 Amp 1.5gb
13:36 November 2nd, 2012
Maybe it's true with Internal Blender Renderer but for me there's no difference in Cycles and only MinGW based builds are truly fastest ones. Maybe the maintainer of this build could try to make one?
13:54 October 27th, 2012
Hi, has anyone noticed that 2.64 64bit (all builds so far) are significantly slower than 2.63a (?) I haven't seen any posts, threads about it (except mine)
E.g. this build gpu render= 8min 15sec vs 2.63a = 6min 22sec using this benchmark http://benchmark.cd3dtech.com/Benchmark/benchmark.html
EVGA GTX460 2GB (1x1 tiles)
Thank you for all the hard work! =)
13:13 October 21st, 2012

could be your display/gpu driver
04:07 October 18th, 2012
Problem signature:
Problem Event Name: APPCRASH
Application Name: blender.exe
Application Version:
Application Timestamp: 507f5cec
Fault Module Name: nvcuda.dll
Fault Module Version:
Fault Module Timestamp: 4fb2030d
Exception Code: c0000005
Exception Offset: 000000000004844e
OS Version: 6.1.7601.
Locale ID: 1033
Additional Information 1: d2e2
Additional Information 2: d2e2945599f2f26d3701df484995b6f0
Additional Information 3: fdd3
Additional Information 4: fdd325aa7376e84591f55110ce2ac168

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04:03 October 18th, 2012
Crashes when trying to render.
00:21 October 7th, 2012
I've been using these builds for a while now and I just want to say how grateful I am for the work you guys put into this.

20:22 October 5th, 2012
great build and i wanna test it, can you make 32bit version???
19:32 October 1st, 2012
268 . alb3530 (builder)
Trollvottel: Start Blender, and press Ctrl + Alt + U, and go to "System" tab.See if you can see CUDA next to "Compute device", and make sure it's selected, like so: http://www.pasteall.org/pic/show.php?id=38364

If yes, your card and its drivers are CUDA capable.Also make sure you're using Cycles Render engine.

Blender Render doesn't use CUDA.

Best regards
13:34 October 1st, 2012
Hi there... not sure I did everything correctly. Do I have to set up something to enable CUDA use? I compared this build to 1.63.0 without CUDA support. Performance settings identical on both builds; tiling set to 8x8 on both. i7 960 3.2 GHz, 8 GB.

Render times are only very slightly better. Starting frame of an animation now 11.82 secs, compared to 1.63.0 it was 13.65 secs. I must admit... I did expect much more... whilst having no idea really what to expect. :)
11:05 September 6th, 2012
Alb: Thanks. Yeah, I've been playing with different tilings. Haven't tried just putting it at one yet... I like this new .18. I know this is probably been in there a while, but I just learned that Cycles has a new camera panel specifically for working in-camera DOF. VERY cool. I'm test driving it now like I've never used Cycles before, seeing what else I missed... It's good stuff.
Snakesong: I'd try making sure you have the newest card driver, if you haven't yet.
16:43 September 5th, 2012
265 . alb3530 (builder)
MartianStories: You can reproduce the classic behaviour of not-tiled rendering by setting both X and Y tiles to 1, in Render Tab > Performance > Tiles

Snakesong: Up to now, it hadn't crashed for me.You can fill in a bug report in Blender's Bug Tracking page about this issue (that is, if it wasn't already reported)

Best regards
10:41 September 5th, 2012
Also have the problem that renders crash. With progressive at the end of the render, without progressive after first sample. I tried MartianStories fix, but it didnt work for me.. your build is not the only one doing this, so it seems to be some recent change in SVN that causes the crash.
22:10 September 4th, 2012
Oh. Okay, I think I got it, Alb. Sorry for the complaint. In the scene I've been working on I had saved it with a renderlayer node setup that I'd left with the backdrop checked. It was the node setup that was causing problems. I opened the file and unchecked "Use UI" first, then unchecked "use nodes" in the node editor. Now it renders F12.
Seems to render very fast. I think I like the new BI-like way it renders tiles instead of little Cycles sandgrains...
21:21 September 4th, 2012
This new one keeps crashing on F12 render, Alb. It's fine on preview render. For F12 I've tried several times, haven't gotten it to complete a render yet. Get's close, then spooges it.
08:06 July 23rd, 2012
only with this build? u tried the others?
04:21 July 20th, 2012
Its possible do in user preferences, using not only one gpu but two? In this build i cant see choice GT580 + GTS250. Thnx.
02:05 July 11th, 2012
Great build, works fine. There is one annoying issue in cycles: if you render an image with a gpu (220, 1gb ram), then it won't deliver the Z-pass. That is quite annoying when my gpu renders 3-9 times faster than my cpu. Please fix it.
00:24 July 1st, 2012
found error when selecting presets in Movie Clip Editor->Tracking Settings
06:03 June 29th, 2012
Same problem as Aralox, same GPU: GTS250
20:41 June 28th, 2012
Hi, sorry if this is a silly question, but would it be possible for this to be compiled for 32 bit windows?
I'm trying to use CUDA with my GTS250, but I get this error: "cuda device supported only compute capability 1.3 or up, found 1.1" using the latest official blender build (2.63a) even with 'experimental' turned on. You mentioned that this build allows cards with CUDA version < 1.3 to use GPU acceleration, so I'd love to be able to use it on my 32 bit machine.
Thank you! :)
05:28 June 26th, 2012
Hi Alb, the material doesn't update in Object mode in 3DView in GLSL Textured mode
08:25 June 11th, 2012
Hello, I use the Benchmark Rev2 Cycles (BMW1M-MikePan.blend). In recent versions I see the rendering time increases. I went from just over 5 minutes to over six ...
Cycles Cuda with GeForce GTS 450 - 2Go (PCIe 16x v1.1, not 2... which explains the basic time high )
05:50 June 9th, 2012
Can you include Freestyle, please. My build always crashes. :)
23:31 June 7th, 2012

u might wanna try rollling back the driver to 270.61?
no harm trying..
00:09 May 30th, 2012
The latest nvidia drivers and cuda toolkit didn't help. My system is win7 x64 i7 920 gf 9600gt . any idea what can i do to deal with it.
Second thing that i'd like to know is that when i change exposure in render panel it starts to rerendering in older wersions render was continue
12:15 May 28th, 2012
Hey again,

i think the precise problem is that the compositor doesn't updates! no matter what i'm doing, only the first ever calculated image will stay in the backdrop...

btw i'm a big fan of colouring and framing the nodes... Great idea :)
11:47 May 28th, 2012

It's amazing how fast blender is developing, but i have small problem :D

Maybe its just me (win8 64-bit), but i can't use the gorgeus new compositor stuff! Somehow none of the input nodes work correctly for me, the image node doesn't gives me an image, the renderlayer is empty after the render (in the UV editor i see the render in the "Render Result", but in the backdrop there's nothing but that white cross. Please someone help me? :D

I have lots of blender running without rebuke, but these new ones the only glitchty...

(win8 consumer preview, 64-bit, AMD Phenom II X4 840, Nvidia Geforce GTX 460 SE, 4 gigs of RAM)
12:37 May 24th, 2012
248 . alb3530 (builder)
RUNNER18: try the latest drivers for your card

Best regards
14:22 May 23rd, 2012
of course i did and i tried CUDA and open cl but i forgot to write about it :).
The message is "error | cuda device supported only compute capability 1.3 or up, found 1.1"
I'll try to instal any cuda stuff that i'll find at nvidia's website and let you know if it helps
04:50 May 23rd, 2012
246 . alb3530 (builder)
RUNNER18: Have you tried changing Feature Set from "Supported" to "Experimental" in "Render" tab?

Best regards
23:57 May 22nd, 2012
Why cycles in 2.63 doesn't work on gf 9600gt but 2.62 and older does. I hve latest nvidia forceware. In the top of window writes something like : needed cuda1.3 found 1.1 can i do anything with that ?
21:39 May 21st, 2012
with your Build 46863 I get an error with 7zip: Can't open as an archive.

Greetings, ponc
02:18 May 16th, 2012
When extruding a face newly built or by extruding an edge or by F, only the outline is extruded ... Here leaves a hole in place of the original face ... For 2 versions.
02:15 May 13th, 2012
I wanted to see how the different latest builds compare on my system W7 x64 i2600k not overclocked and GTX580

I first tried a BI rendering of a complex scene with many shadows and reflections :
1) r46561 by alb3530 : 16.80s
2) r46461 official 2.63a : 18.60s
3) r46534 by bat3a : 19.15s

Then tested the BMW1M Benchmark
1) r46534 by bat3a : 29.81s
2) r46561 by alb3530 : 35.28s
3) r46461 official 2.63a : 40.82s

Interesting results... and many thanks to all builders !
23:11 May 12th, 2012
anyway Blender Foundation just release official 2.63a build..

23:08 May 12th, 2012

hmm not sure about that, me no computing engineer lol!
but since now haven't have the support for Cuda 3.0 kernel,
it's good time to save up the money if u intend on getting either GTX 680 or 690

it's kinda meh if u buy either of the cards and found out it doesn't have the suppport for ur fav. apps/programs
like, u buy a Bluray player but there's no Bluray disc for ur fav movie yet.
11:51 May 12th, 2012

Thanks for the reply.

What i meant, in fact, was about the Cuda version : does 3.0 cards support other Cuda versions ?

(i have now just a GT 330m... but i envisage to buy another pc, just for blender... so 680, or why not 690, could be a solution... but only if blender can work with them !!)
07:00 May 12th, 2012
@Alikendarfen -
it just mean support for cards using 3.0 kernels (currently GeForce GTX 680 and 690 only) doesn't have much support yet,
since these 2 cards are expensive, most here in release builds/releases haven't got their hands on them

just wait for those developers who can afford these card to do their magic
00:08 May 12th, 2012
Tested on my GT 330m (yes... a small card, cuda 1.2, driver 296.10).

For small scene, all is ok and fast (3 times faster than CPU). But with a bigger one, windows crashes : blue screen.
23:28 May 11th, 2012
Thanks !

Just a question concerning Cuda support : "all but 3.0"... does it mean that 3.0 kernels could cause problem in the future (or for the official releases) ?
13:12 May 10th, 2012
ok FINALLY found a solution:

roll back to previous driver version..

for my case, 270.61

now real-time viewport rendering with GPU works fine (both Supported & Experimental)
02:14 May 9th, 2012
all the time :(

im using it on my laptop (which sadly is the only machine i have)

updated to the latest driver
selected GPU for Blender via both NVIDIA Control Panel and Blender User Preferance
20:52 May 8th, 2012

Oh, the problem is already fixed on 46443 and probably some builds below. Sorry for the trouble
20:35 May 8th, 2012

Yup, I'm using Windows 7 Home Edition but I don't have that problem in the older version which I also have been using.
17:45 May 8th, 2012
231 . alb3530 (builder)
dgreater1: are you on Windows?If yes, isn't it some Operating System feature that keeps shift pressed (i.e. Sticky keys)?

Best regards
17:42 May 8th, 2012
230 . alb3530 (builder)
jkbwq: Is it hapenning 100% of times and with any file?

Best Regards
06:33 May 7th, 2012
Is it just me, or is there a bug with the select system?

I mean, when I select an object, the default is "Single Select" but when I press shift and select an object, "Multiple Select" would forever activate even though I not holding Shift anymore.
22:06 May 6th, 2012
OK more info on the crash/problem:

CUDA error: Unknown error in cuCtxsynchronize()

here's a screenshot that show the problem
21:38 May 6th, 2012
hi i still getting problem using GPU rendering in Cycles

Blender will crash everytime i select GPU..

Problem Event Name: APPCRASH
Application Name: blender.exe
Application Version:
Application Timestamp: 4fa468fc
Fault Module Name: nvcuda.dll
Fault Module Version:
Fault Module Timestamp: 4f4e56a8
Exception Code: c0000005
Exception Offset: 000000000004a4d5
OS Version: 6.1.7600.
Locale ID: 1033
Additional Information 1: 70f7
Additional Information 2: 70f7ea30317dc4c839d5242da8037c48
Additional Information 3: 99b0
Additional Information 4: 99b0eefefc776abdfc0c9b91eb942ce1
12:43 May 5th, 2012
226 . alb3530 (builder)
madman14: downloading fine here....it should be some limitation in your connection...try downloading through some proxy server....

Best regards
02:34 May 5th, 2012
I am Unable to download! Help people stops at 5 mb!
13:36 May 4th, 2012
224 . alb3530 (builder)
c@mesigue: it should be working now....

Can you confirm?

Best regards
04:57 May 2nd, 2012
I have a error in 46125 :
Cuda error : Invalid value in cutexRefSetAddress(NUL,texref,cuda_device_ptr(mem.device.pointer),size)
05:19 April 21st, 2012
Just forget my comment. Problem solved. For some reason my keyboard layout changed to other language.
05:16 April 21st, 2012
Something must be wrong because Undo function stops working after a while ( CTRL+Z)
12:11 April 13th, 2012
finally problem solved - i just copied folder with blender files into c:/program files and cuda rendering is working ;)
(sorry for my english xD)
07:55 April 9th, 2012
Hi! I'm getting error: CUDA binary kernel for this graphics card compute capability (2.0) not found.
My graphic card is gtx 570 and i'm using windows 8 consumer preview, drivers 296.17 . Is there any way to solve this?
17:09 April 7th, 2012
its a very long error message but the bottom says this: 3 errors detected in the compilation of C:/users/robert/appdata/local/temp/OCLA/96c.tmp.cl/ Internal error: clc complier invocation failed.
10:25 April 7th, 2012
Great! I love the Vertex slide! Since the shortcut is 'Shift+V', how bout 'Shift+E' for Edge slide?
09:43 April 7th, 2012
216 . alb3530 (builder)
xkill: can't teste cause I have a Nvidia....

What error exactly do you get in the console?

Best regards
20:18 April 5th, 2012
I cant get my GPU to work, i changed it to experimental and set it to gpu but i get an error in the consol something or other.. I have a HD readon ati 6450 not the best but id still like to have it working off that. any way i can? or do i need to wait untill blender developes the correct coding
13:56 April 1st, 2012
214 . alb3530 (builder)
tungerz: We could compile that kernel too, but one of the requirements is Cuda 4.1 toolkit, which has proven to provide slower render times...

Maybe there's some way to do compile using different toolkits i.e. 3.0 with Cuda 4.1 and other kernels with Cuda 4.0....

Best regards
08:39 April 1st, 2012
@ Dave-R8,
You could try DingTo's build, he compiled the 3.0 kernel for the 680

06:45 March 28th, 2012
Is there any chance Collada will ever work in this build? Any time I try to import a Collada file Blender simply disappears. No crash, no errors, nothing. It just disappears.
17:20 March 23rd, 2012
I have a GTX 680 (CC 3.0) and I get the error message. How likely is it that a new build can handle the CUDA on my GPU. It was publicly released yesterday so I have to be understanding but I am still getting the "CUDA kernel not found" error message. Thanks for any tips.
12:56 March 23rd, 2012
I regularly download this build because it is optimized. I needed this function and I just found that it did not work. I find it very difficult to know when and by whom this function has stopped working, but I think it is important to note that the problem is known and we seek a solution ...
12:22 March 23rd, 2012
209 . alb3530 (builder)
c@mesigue: Have you tested with other builds?I believe it's not related to this very build

Best Regards
15:19 March 22nd, 2012
The Merge function from the Modifier Array not working... The vertices are not merge regardless of the distance...
23:41 March 8th, 2012

Please respond - anyone experienced such annoying bug:
After switching to another window type eg. from 3D to UV -> abnormal termination and...out.
OR (and thats interesting) after splitting the display horiz. and/or vert. and assigning 3D to the first window and UV to the other - crashes too, ....BUT: only when UV had been assigned first and stays as Upper or Right window, otherwise seems ok.

My desktop: Win7 x64 Premium 8GB RAM, Nvidia GTX260 latest drivers.

Podpis problemu:
Nazwa zdarzenia problemu: APPCRASH
Nazwa aplikacji: blender.exe
Wersja aplikacji:
Sygnatura czasowa aplikacji: 4f58aa23
Nazwa modułu z błędem: python32.dll
Wersja modułu z błędem:
Sygnatura czasowa modułu z błędem: 4d6e5b4a
Kod wyjątku: 40000015
Przesunięcie wyjątku: 000000000012c1fa
Wersja systemu operacyjnego: 6.1.7601.
Identyfikator ustawień regionalnych: 1045
Dodatkowe informacje 1: 838b
Dodatkowe informacje 2: 838b9268a341d4219ae2b63ba1356f2a
Dodatkowe informacje 3: 4bfa
Dodatkowe informacje 4: 4bfa31904dfc023146fde5e727b60bd5
10:15 March 8th, 2012
206 .
First post here. Can someone tell me if Collada will be fixed in this build soon? Or at the very least OBJ?

I have been unable to find a single build of Blender 2.6+ that can load Collada without crashing.

05:32 March 5th, 2012
I have a problem with the wire. I checked in the properties of wire mesh, but there is a part of the mesh is visible.
I have a GTS 250, I checked experimental GPU, but it is "out of memory" or the texture is black, is it still called Cuda 1.3 (my cuda is 1.1). This is in the window, or rendering. Yet it works with a simple cube to boot windows ...
For the stage of the BMW I can enable rendering to the window but I can not make the scene ...
In the render if I put on the display image editor, in rendering if I press the escape key blender crash ... (all versions since BMesh)
Windows 7 professional 64bit, GeForce GTS 250 512Mo, 2 screens, AMD Quad core and 8 Go RAM
10:57 March 3rd, 2012
Actually I take that back, I don't need to select "experimental", Blender uses the GPU with "supported" as well. Until I updated my drivers I didn't have the option to select GPU from the drop down in the render settings and I didn't notice because I switched to "experimental" as I was updating drivers.
10:46 March 3rd, 2012
Im running this on a laptop with an Nvidia 560m GTX, win 7 64 bit. What I've noticed is no difference between using the GPU or CPU, whether I select CUDA or OpenCL in user preferences. However if I change to "experimental" feature set in the render settings, then select GPU as the render device there, it renders nearly twice as fast.

It seems to me that it's not actually using the GPU unless I select "experimental" feature set, just in case anyone has the same issue.

I have the very latest Nvidia drivers, released on Feb 21 2012
06:37 February 25th, 2012
202 . alb3530 (builder)
llyrc: just downloaded and it unzipped fine here...remember to use latest versions of 7-zip or WinRAR (I've tested unzipping with 7-zip)

Best Regards
21:13 February 24th, 2012
I get errors unziping this one I've deleted and redownloaded still dosn't work, is this just me or is everyone in the same boat?
17:42 February 21st, 2012
200 . alb3530 (builder)
NinthJake: you're welcome....
9800 GT is my main board here... :D

Best Regards
17:37 February 21st, 2012
I've been wanting GPU rendering back on my old Geforce 9800GT for sooo long and it works perfectly on your build.


You ROCK man! :D
13:13 February 18th, 2012
198 . alb3530 (builder)
delta: test if it persists...

Here everything's ok

Best regards
12:18 February 17th, 2012
after 2.62 release I have still unexpected quit from blender when trying to open any option tab related to cycles or gpu or cuda :(
15:24 February 12th, 2012
Hi anyone,

I got this to see if I could get Cycles to run on my GPU (Nvidia NVS 4200m, CUDA 2.1) but it only shows OpenCL in User Prefs (and that fails because version is only 1.0).

Does anyone have any suggestions? Is there a problem because my system has Optimus? (Intel integrated graphics+Nvidia NVS 4200m) I have set Blender to always use Nvidia...

07:58 February 12th, 2012
Hey alb3530,

Sorry that I've missed the latest changes in the Blender builds about my problem the last time I've posted, I missed the new options on User Prefs from
User Preferences > System > Compute Device > CUDA > select your GPU, For users too that missed out this option this was just the problem...
05:13 February 8th, 2012
I keep trying to get this figured out. I can't seem to get layers to work in Cycles. From the release logs and bug fixes, this looks like it should work. I downloaded rev. 43973 and I still can't seem to get objects on different layers to render separately.

Could someone set up a scene with three cubes, each on three different layers, and try to render that? Maybe post the file? From what I can tell, this should work and you should be able to render separate layers out just fine.
05:12 February 8th, 2012
I keep trying to get this figured out. I can't seem to get layers to work in Cycles. From the release logs and bug fixes, this looks like it should work. I downloaded rev. 43973 and I still can't seem to get objects on different layers to render separately.

Could someone set up a scene with three cubes, each on three different layers, and try to render that? Maybe post the file? From what I can tell, this should work and you should be able to render separate layers out just fine.
20:47 February 7th, 2012
edited the tittle according to the uploader's guide, cheers
14:59 February 7th, 2012
191 . alb3530 (builder)
ROUBAL: unfortunatelly I can't help you....got just one Nvidia card here...

But for what you say, it seems like some limitation of Blender...maybe it will be available in future revisions

Best Regards
09:26 February 7th, 2012
I'm sorry for multiposting : I was looking for my message at the bottom of the page, without noticing that recent messages were on top ! So I thought it wasn't sent ! My bad !
09:24 February 7th, 2012
Thanks for the effort. It is my first trial with the multi GPU mode with Blender, and it doesn't behave as I expected :
The preferences allow the use of one of the available GPUs, or all the GPUs, but it is not possible to use Two of Three available GPUs for example. I have one GTX 260 for display, and Two GTX 580 3GB for rendering, and I can't use the Two GTX 580. Except if I select all GPUs, but the rendering time is equal or worse than with only one GTX 580, and I think that the availlable memory amount will be the amount of the weakest card, so I would like to use the two big cards and exclude the GTX 260 (like I do with Octane). I tested with Cuda. OpenCL gives only a black screen.
My config : Win7x64Pro. IntelQuadXtreme9650.3GHz. 8GB RAM. One GTX 260 for display. Two GTX 580-3GB for rendering, in a Cubix-Xpander Pro2.
05:23 February 7th, 2012
@ thePostFuturist,
use blender 2.61 official for the city gen.
I would expect it to be updated for blender 2.62 offical.
19:05 February 6th, 2012
Getting error when using a Java based add-on:

Traceback (most recent call last):
File "C:\Program Files (x86)\BlenderGraphicAll\2.61\scripts\addons\suicidator_city_generator_0_5_3_Full\__init__.py", line 360, in execute
SCG_output = imp.load_module('SCG_output', file, pathname, description)
File "C:\Users\ABSPQI~1\AppData\Local\Temp\SCG_output.py", line 21, in
File "C:\Users\ABSPQI~1\AppData\Local\Temp\SCG_output.py", line 11, in SCG_build_terrain
File "C:\Program Files (x86)\BlenderGraphicAll\2.61\scripts\addons\suicidator_city_generator_0_5_3_Full\__init__.py", line 100, in clearMeshOfObject
File "C:\Program Files (x86)\BlenderGraphicAll\2.61\scripts\modules\bpy\ops.py", line 180, in __call__
ret = op_call(self.idname_py(), None, kw)
AttributeError: Calling operator "bpy.ops.object.select_name" error, could not be found


error DOES NO T occur in the latest official release
04:29 February 6th, 2012
@matisso: nope i haven't yet into GPU passes...
03:45 February 6th, 2012
nash88: are you getting render passes with GPU rendering?
00:25 February 6th, 2012
on supported 01:19.22
on experimental 01:18.45

not bad, this beats bat3a's build...
thanks ! i think this will be going faster as
the devs might introduce new ways of

more power on your builds :)
22:09 February 5th, 2012
Having problems translating objects - just doesn't move.
17:54 February 5th, 2012
182 . alb3530 (builder)
nash88: Try to download again....Speed on Cycles should not be slower than other x64 builds (with same revision number)

Best regards
11:02 February 5th, 2012
Ok this is my test benchmark between your build and bat3a's latest build...

I just noticed that in the newer builds the old selection CPU/GPU combo box is changed to Supported/Experimental... sorry for that I was using the old builds (Rev 42885) which was more faster when rendering cycles in preview mode using GPU.

and this is my test scene I uploaded it here - http://www.pasteall.org/blend/11434
10:32 February 5th, 2012
180 . alb3530 (builder)
AlexDS: That's weird....

I've got reports CUDA is working nicely....

In my machine that's also fine...also using Experimental, by the way....

Is it performing slowly in all scenes?

Best regards
09:41 February 5th, 2012
thanks for the build. for me it only works as a Experimantal, but i get slower render that my cpu. Before 2.61, when Cuda worked for me , it had faster speed than cpu.
04:44 February 5th, 2012
178 . alb3530 (builder)
ponc: in fact it is, I forgot to post here..... :)

Best regards
00:29 February 5th, 2012
...with you're recent build 5905: 0:33:15
problem seems to be solved!!!
00:19 February 5th, 2012
Hi alb3530,
I've uploaded a test szene here: https://rapidshare.com/files/1225521933/untitled_TEST.blend
Rendertimes with your build 5889: 1:14:39
with build 5895: 0: 33:44

greetings, ponc
16:18 February 4th, 2012
175 . alb3530 (builder)
Haha... I would just post that tip :)

Best Regards
16:16 February 4th, 2012
Never mind, found the option in User Preferences -> System
16:11 February 4th, 2012
Setting to choose GPU rendering seems to be missing for me, is it a UI bug? I can select to use my GPU in previous builds fine, but this one forces me to use CPU.
12:03 February 4th, 2012
172 . alb3530 (builder)
nash88 and ponc: Give me a test scene to look into....

A .blend file, and if not asking too much, a render time comparison between mine and other x64 build...

I've tested here with some scenes, and render times aren't slower in this very build actually...But I'm on a 9800 GT (old GPU)

Best regards
04:47 February 4th, 2012
D'oh, I should also try "experimental" set, I think I missed it. Will be back.
04:11 February 4th, 2012
@nash88 - does it deliver you passes with GPU rendering?

@alb3530 - it occured to me that maybe I'd see if passes render with CPU and guess what, it worked. Still, it refuses to deliver them with GPU on my GTX460SE and CPU rendering is dead slow compared to GPU. ;]
06:12 February 3rd, 2012
your builds are great, even the first time I downloaded... but it becomes slow on cycles, mine is gtx460 the other builds have faster renders... please just bring back the old settings for cycles, coz i think it's better to select manual than automatic... thanks and more power to your builds...
05:38 February 3rd, 2012
Your builds always worked fine for me( thanks a lot!), but the last ones (till 5889) got very slow in rendering with Cycles (gtx560ti). As other builds (a.i. tungerz) at the moment are a lot faster, I guess something has changed in your build. 5740 was the last one for me with fast rendering.
05:16 February 3rd, 2012
@alb3530 - well, the file can be downloaded here: http://www.benchmark.cd3dtech.com/benchmark.zip I don't really think it's a scene related problem, but maybe I'm wrong. I'm downloading the current build to see if passes will work on my machine now. My GPU is GTX460 SE. Let me know if passes render for you with this scene, please.
20:14 February 2nd, 2012
BSurfaces is not working with this build.
15:42 February 2nd, 2012
hi, I'd appreciate if you can trim your tittle, ie: "Multi GPU, Cucumber Merging, Double Edge Mask Node, Remesh Modifier, Carve Booleans, UVTools And Cycles Render Passes" all of this is standard trunk, let's leave the nice descriptions for inside the build! cheers
14:09 February 2nd, 2012
I just wanted to throw out there, in case anyone else had this problem, that on older GPUs with older CUDA kernels, you have to set the "Feature Set" option to "experimental". I'd searched for days for a resolution to the "error|cuda device supported only with compute capability 1.3 or up, found 1.1" issue, and finally found it in the middle of all these posts. Maybe add this detail to the top of the details section of the build information?

My blender works again. All is well with the world. Thanks to the devs and all you guys who are "just putting together builds". As far as I'm concerned, you could all be saying "I'm just a brain surgeon- I didn't actually create the brain"!
03:32 February 2nd, 2012
alb3530: thanks, I'll get an update when it'll be fixed on my system.
11:02 February 1st, 2012
Thank you for another great release!!!

I have a question about cycles multi gpu support: I have a geforce 590 (dual gpu) + 8800 gtx, i use the 8800 generally for physics and other quick calcs, i would like to set the render to use the 2 gpus of the 590 and not the 8800 (low memeory causes problems) i found out i can only use the whole 3 or just 1, how can i set it to use the 2 gpus of the 590 and not the third of 8800?

Thank you!
13:53 January 30th, 2012
Does someone have this problem: Image Node as no Image and Alpha output.
09:15 January 30th, 2012
160 . alb3530 (builder)
delta: It should work for you now.


Best Regards
14:41 January 29th, 2012
@alb3530: thanks for Your time nad effort, it's indeed a weird way of going thru it but if it works then I need do the same (as soon as I'll realize what exactly should be done with theese virtual machines;) but anyway...I can enter User Preferences but choosing 'System' tab results crash. I've tried some builds (including official 2.61 and Yours) before moving None/CUDA/OpenCL option menu from main interface Render tab to User Pref.->System and all working good. Tried to save as default the Supported or Experimental Cpu/GPU combnation but none has worked. The very first builds with the 'new' none/cuda/opencl menu have worked perfectly from what I remember. Maybe it's sth strange with default set on that 'new' menu in current builds? I have GTS 250M - not so popular mobile geforce model.
06:37 January 29th, 2012
158 . alb3530 (builder)

I could reproduce (and fix) this problem, but in a odd way....

1 - Started my machine from a virtual disk (Containing Windows 7 x64)
2 - Started Blender, set Geforce 9800 GT as the compute device in "User Preferences"; and saved settings;
3 - Turned the machine off and started a virtual machine with the very same virtual disk (Given that virtual machine can't see PCI devices, so the GPU is unavailable to it).That simulates the removal of the card.Maybe changing the GPU model would cause the same issue;
4 - Went to Blender "User Preferences", which caused blender to crash instantly (exception code: C0000005)
5 - Started Blender again, and loaded factory settings.After that, I could open all tabs of "User Preferences" screen.

Best regards
03:18 January 29th, 2012
@alb3530: Thank you for the fix. I can confirm that the player is working now.

Best regards
00:18 January 29th, 2012
alb3530: after deleting blender config file nothing has changed:( still Cycles related issue as I guess.
17:10 January 28th, 2012
155 . alb3530 (builder)
Fixed: Blenderplayer is working now
16:32 January 28th, 2012
154 . alb3530 (builder)
Conz: I was able to reproduce the problem you reported about blenderplayer here, and it was really a problem in this very build ....

Will rebuild and upload the working build within just a few minutes...

matisso: please upload a .blend file you're having problems with (after making sure the problem is in this specific build, of course....)

Delta: I wasn't able to reproduce it here....I can actually go to System tab in user preferences...Try to reset Blender settings, and tell me if it works for you

Best regards
15:17 January 27th, 2012
153 . alb3530 (builder)
matisso: I'll try to reproduce the problems as soon as I come back home...

In the meantime, have you tried another build to see if you get the same issues?

If possible, can you share the .blend file you're having problems with?

Best regards
12:52 January 27th, 2012
This build stops rendering on my machine at random places, sometimes at the very beginning of render, sometimes well after several hundred or even thousand passes and returns the following errors in the console:

CUDA error: Unknown error in cuCtxSynchronize()
CUDA error: Unknown error in cuMemFree(cuda_device_ptr(mem.device_pointer))

The second line is being repeated about ten times. After these errors, GPU and memory clocks are severely set back, like it was messing with a driver in some way, and they won't go up upon next render, or even launching stable build. I have to reboot my PC, maybe reloading video driver would help, but didn't check it.

05:01 January 27th, 2012
@alb3530: same problem with your r43736
04:47 January 27th, 2012
@alb3530: Tested with nearly the same revision. Your r43704 and from builder bot the r43705 both win7 64bit.
- Scene with default cube
- switch render engine to "Blender Game"
- Press the button "render" -> "standalone player" -> "Start"
Than there should be the standalone player coming up. In the build bot version it's ok. But in your version the player doesn't show up, but is running without any window.
You have to kill the proces "blenderplayer.exe" to reactivate blender. Until this blender seems frozen (is waiting only to the ending of the player)
Will try your r43736 now.
02:54 January 27th, 2012
There's no specific error code just "Blender stopped working due to unexpected error" also log files generated by Win7 (for sending it to Microsoft) don't include any specific info. Even I run Blender via CMD terminal nothing appears apart from "found bundled python c:*path*"
I have installed:
Microsoft Visual C++ 2005 Redistributable
Microsoft Visual C++ 2005 Redistributable (x64)
Microsoft Visual C++ 2008 ATL Update kb973924 - x64 9.0.30729.4148
Microsoft Visual C++ 2008 ATL Update kb973924 - x86 9.0.30729.4148
Microsoft Visual C++ 2008 Redistributable - KB2467174 - x64 9.0.30729.5570
Microsoft Visual C++ 2008 Redistributable - KB2467174 - x86 9.0.30729.5570
Microsoft Visual C++ 2008 Redistributable - x64 9.0.21022
Microsoft Visual C++ 2008 Redistributable - x64 9.0.30729.17
Microsoft Visual C++ 2008 Redistributable - x64 9.0.30729.4148
Microsoft Visual C++ 2008 Redistributable - x64 9.0.30729.6161
Microsoft Visual C++ 2008 Redistributable - x86 9.0.21022
Microsoft Visual C++ 2008 Redistributable - x86 9.0.30729.17
Microsoft Visual C++ 2008 Redistributable - x86 9.0.30729.4148
Microsoft Visual C++ 2008 Redistributable - x86 9.0.30729.6161
Microsoft Visual C++ 2010 x64 Redistributable - 10.0.40219
Microsoft Visual C++ 2010 x86 Redistributable - 10.0.30319
02:26 January 27th, 2012
148 . alb3530 (builder)
delta: Have you installed Microsoft Visual C++ 2008 SP1 Redistributable Package (x64)?There were people having problems when the SP1 wasn't installed for VC Redistributable Package...Also, when it crashes, what's the exception code it shows?Is it C0000005?

I've tested Cycles viewport rendering before uploading the build, and it worked just fine...Doesn't it work for you as well?

Best regards
00:08 January 27th, 2012
Thank You very much Delta
23:53 January 26th, 2012
You need to put Ctrl+Alt+U and choose 'System' where all CPU/GPU oprtions are (left/bottom corner).
@alb3530: I've posted recently on bat3a x64 thread same issue: from 2~3 weeks till todays builds I cannot fully use Blender and Cycles. Blender crashes when: with Cycles activated I click on 'Render' tab in standard right panel, press F12, press Ctrl+Alt+U and click 'System' tab ->all crashes related to CPU/GPU/Cycles. I have all MSVC++2008 installed, latest nvidia drivers, Cuda 4.1 toolkit. What can cause the problem in Your opinion? Older Cycles builds works.
23:26 January 26th, 2012
Why there is no option to choose the gpu render device ? In previous versions it worked correctly now there is only supported and experimental both CPU


When it would be fixed or can I do it on my own
14:50 January 26th, 2012
144 . alb3530 (builder)
Conz: Sorry, can you explain step-by-step what you're doing to launch the Player?

Best Regards
13:41 January 26th, 2012
143 . alb3530 (builder)
Conz, I'll test it when I'm back home....Have you tested with another build, but having same revision?
03:41 January 26th, 2012
Thak you for your builds.
There is a problem with the new "render" -> "standalone player" -> "start".
The player will not be visible, it is running in background and blender looks like frozen. (it simply wait that you end the not visible player)
So you have to kill the process with task manager.
I have tested this version: http://builder.blender.org/download/
And there the player is working fine. So it's a problem with your build.
20:36 January 25th, 2012
141 . alb3530 (builder)
Everything set up again, all CUDA Kernels are available...

Slower rendering with recent builds when using GPU (CUDA) should be adressed soon.It's up to Blender developers though, not me.

Best Regards
01:35 January 25th, 2012
140 . alb3530 (builder)
I'm trying to fix the problems with CUDA compiling after having moved the HD to another mainboard...

Unfortunately, with certain GPUs, it won't work until I have everything set up again.

Best regards
18:17 January 24th, 2012
r43660 now works for me again (gtx 560ti), but is much slower than your build I'm using till now (r43550), when I render with Cycles.

Anyway thanks a lot for your great builts!
15:50 January 24th, 2012
1. Thanks for building

2. I get the same cuda error as mentioned before CUDA error: Invalid value in cuMemcpyHtoD(mem, host, size)

my gpu is a GTX260
14:06 January 24th, 2012
@zumpitu: If you can't find any options. Open your user preferences in blender(Alt Ctrl U), under System you can choose wich device you want to use and there is a multi support too :)

Thanks a lot! :D no Cuda Problems anymore. works well with 2x GTX 570.
14:00 January 24th, 2012
136 . alb3530 (builder)
zumpitu: this build is compiled right from the trunk.With that said, Multi-GPU should be supported...

Best regards
12:36 January 24th, 2012
Hello all !

Do do you have in plane to add multy Gpu support, it is possible ??
09:45 January 24th, 2012
134 . alb3530 (builder)
YoHoo: thanks for reporting, glad it's working for you, cause for me it's not :D

Revision number is now updated

Best Regards
09:25 January 24th, 2012

great, CUDA works again (for me).

Thank you for your effort!

Best regards

P.S.: In the build overview list this build still shows "r43575" under the windows icon on the left side, although inside it is already r43660.
09:04 January 24th, 2012
132 . alb3530 (builder)
CUDA should be working again for some GPUs, but I can't test it right now.

Uploading right now...

Best regards
11:14 January 21st, 2012
First: Thanks for your builds, they're always good and fast :)
Second: I got the same error with cuMemcpyHtoD
10:00 January 21st, 2012
Just FYI, getting same error as YoHoo, but this is my first time trying out the build.

CUDA error: Invalid value in cuMemcpyHtoD(mem, host, size)

Running GTX460 w/latest driver 285.62, Win7-64bit

06:59 January 21st, 2012
129 . alb3530 (builder)
YoHoo: confirmed, will see what I can do....

Best regards
03:26 January 21st, 2012
Hi thanks for your great builds!

Cycles GPU rendering (CUDA) on my GeForce GTX 560 Ti always worked, however in build 43575 I now get
CUDA error: Invalid value in cuMemcpyHtoD(mem, host, size)

It shows up in the viewport after the "Building BVH..." phase and on the console. Happens also when rendering the scene with F12. CPU rendering however is fine. Seems to be independent from the scene (happens with default cube also).

NVIDIA driver version is 290.53, but I didn't change the driver since testing the build before this one, where CUDA rendering still worked fine. I am running Windows 7 Home Premium SP1 64bit.

Is anybody experiencing the same problem?

Best regards
23:41 January 19th, 2012
Concerning my comments # 121-122, it's actually the Cycles plug-in always working in the background, even if not in use.
08:52 January 15th, 2012
@AlexDS: just go to render settings tab, first ctrl+alt+u ->system and there in left-down corner choose Cuda/what card You have. Then go to standard panel and in render type settings switch from 'Supported/GPU Compute' to 'Experimental/GPU Compute' as GTS has older/unsupported from some time version of Cuda kernel.
...btw what the DS in Your username means?
05:12 January 14th, 2012
going in User Preferences -> System, done it now ,set Compute device correctly.

i have GeForce GTS 250 1.1 Compute Capability

in system console is says " Cuda device supported only with compute compatibility 1.3 or up, found 1.1 "

" it is recommended to use a GTX 4xx or GTX 5xx card (shader model 2.x), since only those are likely to give good speedup, earlier cards are often slower than just using the CPU." http://wiki.blender.org/index.php/Do.../GPU_Rendering

with my GTS 250 1.1 computing i rendered at twice-speed faster (when it worked) than with my i5 720 4-core CPU...

does it means that form now on i won't be having gpu rendering on my machine ?
02:55 January 14th, 2012
i don't get GPU rendering on my geforce gts 250 with driver version 285.62
here's the screenshots of rendering:
1. experimental http://www.pasteall.org/pic/show.php?id=24359
2. supported http://www.pasteall.org/pic/show.php?id=24361
15:11 January 13th, 2012
I've now got more than just clay renders with OpenCl still no textures but shaders seem to work
tells you what you need to get shaders to work.
03:03 January 13th, 2012
Just as a side note, my previous entry (#121) refers r43311.
14:22 January 12th, 2012
This build/version keeps one of my cores constantly occupied at 50%. What's happening?
23:48 January 11th, 2012
The last builds don't give me the cuda option anymore.
06:15 December 29th, 2011
ooops... I correct that... I just realized that TEXTURING just disapears from your objects when you change from Supported to experimental OpencCPL...
06:11 December 29th, 2011
alb3530 : With ATI cards, the Blender release works just fine with the experimental OpenCPL GPU and the "Rendered view port shading".... but won't with any of your release ;O) I'm sure they have done something recently to correct that problem...
Many thanks anyways... HAPPY NEW YEAR TO YOU... in advance
14:54 December 26th, 2011
llyrc: Looks like OpenCL starting to show positive result
Check this one: http://graphicall.org/767
16:43 December 23rd, 2011
Finaly getting some results with GPU rendering on ATI card since Catalyst Version 11.12 was released ...still only clay renders but a step in the right direction, infact all the old versions of blender cycles seem to work to this extent as well for gpu.
08:25 December 23rd, 2011
115 . alb3530 (builder)
Tropinin: For 2.61, it should be somewhere around %appdata%\Blender Foundation\Blender\2.61

Best regards
02:03 December 23rd, 2011
Where Blender stores the settings?
(Sorry for my English)
16:50 December 22nd, 2011
113 . alb3530 (builder)
dbn: just uploaded the patched build, but be warned: in my machine, the video is running oddly.... :(

Best Regards
20:59 December 21st, 2011
alb3530 (builder)
dbn: Maybe you should report it as a bug using Blender's bug tracker then.... Best regards

Hi, i did what you suggested and yes, it happend to be a bug so Sergey Sharybin (nazgul) made a patch for it. Is it possible for you to make a build with it? If so you can grab the patch here in the attachments section:


Thanks in advance
16:28 December 20th, 2011
111 . alb3530 (builder)
dbn: Maybe you should report it as a bug using Blender's bug tracker then....

Best regards
07:35 December 20th, 2011
alb3530 (builder) The oldest build i have that shows no problem with this is Cycles 2.60.0 r41529, newer builds after that are not working well with .mts video files. Here a list of the ones i tried to use without success.

2.61.0 r42615 official release.
2.61.0 r42667 tomato branch
2.60.7 r42494
2.60.5 r42025
04:04 December 20th, 2011
109 . alb3530 (builder)
aombk: It's still there.Go to settings, then addons.You should find a category called "Testing", that's disabled by default.By enabling it, the scripts will appear

dbn: is it working in other builds?
23:35 December 19th, 2011
i may have missed something but have you decided to not include most of the addons to your latest builds?
20:54 December 19th, 2011
Hi, i just downloaded this build and was trying to do some camera tracking but my video is not showing right, it twinkles with black frames in between. Im using a AVCHD camera which gives me .mts files, is there an issue with these kind of video files? i have tried using an .avi and there is no problem but of course i want to use the source video and avoid conversions. Any ideas on this?
17:34 December 14th, 2011
106 . alb3530 (builder)
carthage: It's compiled with that kernel as well....Do the following: In the Render tab, look for "Render" options, and change "Feature set" from "Supported "to "Experimental".

Best regards
14:54 December 14th, 2011
Which CUDA kernels does this build have? I'm getting error: CUDA binary kernel for this graphics card shader model (2.1) not found.
08:56 December 13th, 2011
104 . alb3530 (builder)
08:52 December 13th, 2011
@matisso Could you paste a link? I have the problem you had. :/
04:27 December 10th, 2011
Here you go..
04:22 December 8th, 2011
As for the C++ Runtime, I have downloaded SP1 (I wasn't aware that there's any) and this problem seems to be gone.

As for the display driver issue, it's probably geometry-related. When I work with the same file, switch to another layer containing some simple meshes and then turn on the Rendered View, it's OK. When I change layers back, it usually works (reluctantly, though - it's a massive architectural file, roughly 3×3 km, with probably a few hundreds of buildings), but does crash sometimes. I'll post a screenshot of error and the console.
08:23 December 6th, 2011
100 . alb3530 (builder)
shinhikari: I'll look into it to see if I can reproduce it here....It would be cool if you could post a screenshot of that problem....

matisso: the error you mentioned happens only with a specific .blend file?If yes, can you please share it?As for the runtime error, I haven't had any so far, considering I always use my own build

Best regards
00:40 December 6th, 2011
I can't get my mesh to become transparent in edit mode. when i'm in object mode my mesh become transparent just fine, but when i switched to edit mode my mesh become solid.

Sorry for my crappy english.
00:20 December 6th, 2011
As for my previous (#96) comment, I forgot to add that OpenGL driver timeout occurs when I switch to Rendered View internally. When rendering a scene separately, it doesn't happen.

No one else had a C++ Runtime issues I was mentioning?
11:43 December 5th, 2011
97 . alb3530 (builder)
For all having problems with objects size:

It should be working now.If you open a .blend file (saved with this build) using an older build (i.e. official download from blender.org), the objects should keep their size

Best regards
11:35 December 5th, 2011
It regularly gives me a C++ Runtime error, when I switch to 3D View from Node View. I have to open a duplicate window, to be able to edit nodes. Sometimes, a mere click in the icon for changing window content, when in Nodes View, gives this error. Blender crashes in this case, of course. I'll check, if updating C++ runtime libraries (if there are any updates?) alleviates the problem.

Also, for particularly geometry intensive scenes, it crashes and returns an error that Nvidia OpenGL driver timed out. Not sure if it's driver, or implementation related. I'm on GTX 460 SE, recently updated drivers.
19:18 December 2nd, 2011
Hey alb3530,

yeh so basically I was having this problem of when solving a track, the solve would give an error value of 500-2000, and it was unuseable. Submitted a bug report and nazgul replied saying it was a problem with c-make and that it would be fixed in revision 42309, as stated here:

"Fix #29469: Latest motion tracking not working.

It was error in CMakeLists.txt caused by automatic bundling script which
expanded variables instead of substituting them as-is.

Fixed both of bundling script and CMakeLists.txt"

He also refered me to the official build bot build which i downloaded, which works. So making sure that it was past revision 42309, i downloaded this build, and it seems the fix has not been effective . If you can't find the solution, ill submit another ticket for nazgul and notify him that it was not effective.
17:59 December 2nd, 2011
"The objects you model using older builds are meant to be forward-compatible, but the opposite is not true."
I did not know that, I stand corrected. Thank you a lot for your explanations, Alb.
07:57 December 2nd, 2011
93 . alb3530 (builder)
ArekBulski: I've tested other builds and the same thing happened....sorry, there's nothing I can do.What I've succeded to do was rendering your scene in a lower resolution, maintaining everything else the same....

Take a look at nvidia support page:


ArekBulski and evan3585: The objects you model using older builds are meant to be forward-compatible, but the opposite is not true.

If you model something using recent builds, you probably will have problems related to dimension and distance of objects if you open the blend files using 2.60.0, for example....

This isn't a specific issue of my build: it's related to the development cycle.

Best regards
06:33 December 2nd, 2011
92 . alb3530 (builder)
evan3585: I've never had that problem....can you specify what is that "another build" you tried?It would be great if you could share the blend files where the problems are happening...

tek5828: I would tell you about that fix but couldn't post it earlier....but what is the official build you mentioned?I'll take a look at the blend file you share....

ArekBulski: I suppose you're getting "Display Driver Nvidia Windows Kernel Mode Driver Version 285.62 stopped responding and has successfully recovered."
It might be related to the nvidia driver/card, as I've already heard a lot of people with this problem, also in nvidia forums.....I even found a Blender user speaking about this problem....
But, I remember when the first Cycles build was released, I had that problem when connecting/disconnecting nodes in a given setup....I'll take a look at your .blend file to see if I can reproduce it here...

boby: by "all of my CPU works together computing the subdivision surface of my cubes (not only 1 cpu 100%)" you mean the problem doesn't exist anymore?

Best regards
03:50 December 2nd, 2011
After working on my models after a little while it would not let me loop cut. Everytime I press Ctrl+R it wouldnt let me no matter what. I then tried other version including 2.49 with the same problem. Have to restart PC to be able to do it again. Also when opening my .blends from this build to another build the objects would be resized and/or moved.
22:10 December 1st, 2011
"Revision 42309 by nazgul
16 hours 5 min ago

Fix #29469: Latest motion tracking not working.

It was error in CMakeLists.txt caused by automatic bundling script which
expanded variables instead of substituting them as-is.

Fixed both of bundling script and CMakeLists.txt"

I submitted it to the bug tracker and nazgul replied as above. Directed me to the official build which works, although even though this is build 42330, I still have the same problem with this build. Just to let you know.
05:26 December 1st, 2011
I find this particular build problematic. For one, the .blend I made with this version seems corrupted when I open it with your older builds. Objects are moved around in a weird way. For two, rendering starts nicely but fails at some point with some generic "OpenGL driver bla bla failed" message. I am using Cycles with CUDA. Rendering within viewport works fine, only the proper rendering fails. Also rendering with CPU works fine.

Here I uploaded the problematic .blend and screenshots, anyone feel free to mess with it.

Oh, alb3530, thank you for all your builds. :)
21:39 November 29th, 2011
Hey guys, put together a video of my tracking error. hope it helps.

04:02 November 27th, 2011
Edit :

all of my CPU works together computing the subdivision surface of my cubes (not only 1 cpu 100%)
03:59 November 27th, 2011
Yep, first thanks for reading :)
I ll try to explain with my bad english:
- add a subsurf modifier on the default cube
- Open your CPU inspector
- Press Alt + A in blender to launch animation
- duplicate your cube
- Your fps will go down faster (depend of your CPU), you can set the fps to 60 to see the affect faster
- when your fps begin to go down, watch your CPU inspector
- You are "out" of cpu, but only 1 cpu is working at 100%, others are about 5/10%

- I tried with other build (OpenMP SSE2 build for windows 32b, here on graphicall), and my fps is really better with the same scene
- all of my CPU works together computing the subdivision surface of my cubes (1 cpu 100%).
- Gain is something like 300% faster in viewport for me

Thanks again
10:18 November 26th, 2011
85 . alb3530 (builder)
boby: Can you explain it with more details?I've tried subsurfacing five cubes with six subdivisions, and processor usage was high when both rendering and moving them....
07:11 November 25th, 2011
"OpenMP support, for Parallel code execution"

Doesn't work here. Not SSE2 optimized.
I tried on a simple scene with subdivides cube(subsurf), and only one core works (13% of my CPU)
Optimized SSE2 build use about 60% on the same scene.
Cpu : Sandy bridge 2600K

Could you do that?

03:57 November 24th, 2011
Thanx for the compilation. How you succedeed ? i tried MSVC 2010 (Express&Ultimatum), 2008 and still get boots library linking error-libthread etc.
so compilation fails...
02:53 November 24th, 2011
Just tried the 32bit version, No such problem with solving
20:23 November 23rd, 2011
Here alb3530 and nazgul or whoever else. the .blend for latest version.

10:04 November 23rd, 2011
is there anyone here that could please make a version of blender capable of using the CAL 3D exporter or be able to export to IMVU (thats the one i export to the most)? i need it to export to some games and so far i have to go through a whole system of things before im able to bring it into the games. please help :D
07:12 November 23rd, 2011

do you want the video footage i am tracking packed as well.??

Here is what is happening in detail.

Load up this build,

open video file.

leave it at 250 frames for the scene, just for testing purposes, do a "detect features' and then track all markers for 250 frames. got around 20-50 tracked markers. Set camera data (nikon d7000, 24mm, set for tracking as well as scene camera) . add camera solver function to scene camera. select A and B frames. solve (some times crashes, not new) --- result is massive error with scene camera barely moving.

** just tried with default camera settings, this time the camera actually moved, although still had severe problems (jumping).

^ tracked on KLT.

Tracked this same footage in previous Tomato branch, no problem.

- tek
04:08 November 23rd, 2011
alb3530 :
yes actually, I tried this twice when I saw the comments bellow mentionning that issue... I did exactly what you say C:/BLENDER/blender.exe
still have an error... but not the same one !! lol

here is the console error :

openCL build failed : calcCompile failedError : Creating kernel kernel_ocl_path_trace failed !
03:20 November 23rd, 2011
77 . alb3530 (builder)
Dobz: is OpenCL working in your machine using this very build?

tek5828: can you please share the .blend file you're having problem with?If not asking too much, can you explain your problem with m5ore details?

cobalt31: make sure that full path to blender.exe doesn't contain any spaces on it.It should be something like C:\BLENDER\blender.exe and not like C:\BLENDER 2.60\blender.exe
02:21 November 23rd, 2011
Hi... just tried out to put the blender directory directly on C: (to avoid the spaces in the exe path) didn't work... the kernel error still occurs

thanks for the suggestion though... I'll just wait and see
00:51 November 23rd, 2011
Just to let you know, unless i am doing something wrong and the process for 3D solving has changed in the tracker, but it doesn't work (KLT or SAD), tried on footage i have tracked in previous versions of tomato 64 bit, no work. tons of great markers, using SAD and KLT. What happens is after solve, play through, the camera rotates a bit on its position but has no 3D movement. , aswell, getting massive average error (130 to 595919235) , on this particular footage on old tomato, I was able to get a low error of 0.2 ! now no worky, This is r42051 btw, just downloaded latest. Thanks
10:03 November 22nd, 2011
Dobz - I tried what you suggested and it seemed to give me a different error now. The console showed a kernel error when I tried running it from a directory w/o spaces in it.

To all who helped - Thank you very much for all the responses, I'm assuming this error thing is about Cycles being a work-in-progress feature so I'll just watch out for any future fixes for it (or better yet, switch to an nVidia card soon...need to save up still though XD).

Thanks for your awesome efforts,
05:34 November 22nd, 2011
@alb3530: Ok, found the changing option, stupid me ;) . But the only change is, that with GPU rendering my system totaly starts lagging, thread detection stays with the 8 cores and preview rendering also has the same time it takes to render an image, just with GPU rendering I can't work with the maschine anymore, because I get a dia show. With CPU rendering I can work nicely. Thx again...
05:13 November 22nd, 2011
@alb3530: I have Nvidia Cuda Driver 285.62. On Gpu-Z it says 48 shaders, if that's where it states the cores, while I know the amount of cuda cores from the specs-sheet from Nvidia, where it states, that the GT330M has 48 GPU-cores. In this build I can't find the option to change between CPU and GPU rendering, it used to be under "performance" in the render option panel, or am I misstaken? I still only get 8 cores, so I'm guessing it's getting the hyperthreaded cores from my quadcore i7 CPU. Thx in advance again...
04:41 November 22nd, 2011
To everyone with OpenCL issues: make sure Blender is in a path that does not contain any spaces. This is a bug that is in the bug tracker and is hopefully being worked on. Alternatively if you have an NVIDIA card, just use CUDA to avoid any problems with OpenCL.
22:55 November 20th, 2011
brektzar - i tried these following AMD Catalyst versions and found no luck with them:

10.5 (5/26/2010)
11.1 (1/26/2011)
11.5 (5/9/2011)
11.7 (7/27/2011)
11.9 (9/28/2011)
11.10 (Latest - 10/31/2011)

all of them gave me the same error and console message..
*I used Phyxion's driver cleaner to clean the drivers before installing another driver.
CPU render works..I'll just play with that for the meantime..

More power,
18:27 November 20th, 2011
brektzar - Updating the drivers didn't work, I haven't tried rolling back though. I'll do that later today. Thx for the suggestion. ^^
16:13 November 20th, 2011
It works great for me, but i have Nvidia, could it be a driver issue?

rhui- have you tried updating or rolling back your drivers?
03:11 November 19th, 2011
@rhui- :: I have the exact same probleme with my Radeon HD 5770 ... same error message....

If any one knows with that is ! please let us know ;O)
22:59 November 18th, 2011
alb3530- I dont know if this will do any help but when I checked my console as I tried OpenCL GPU, it gave me this error:

"Compiling OpenCL kernel ...
OpenCL Build failed:
Invalid Option: Study/Blender/cycles_x64.Win7-41652/cycles_x64.Win7-41652/2.60/scripts/addons/cycles/kernel (expected - at the beginning)"

btw I'm using a Radeon HD 5770 crossfire x... Looking forward to a solution from you guys.

Keep it awesome,
11:10 November 18th, 2011
65 . alb3530 (builder)
rhui-I will try to check it, though my card is a Nvidia, not a AMD...

Best regards
10:24 November 18th, 2011
Hi, I tried using this build today and I say it's really great! Although I have this problem, I couldn't use Cycles when I switch the Device from CPU to OpenCL GPU. It only gives me a black output, pitch black.
Is there anyone here who have the same problem? Or better yet is there anyone here who solved the problem already?

Thx in advance! :)
03:50 November 17th, 2011
63 . alb3530 (builder)
Speroangelus: It seems like your drivers are very outdated, as the latest version is 285.62....

You might want to go to http://www.geforce.com/Drivers and update the drivers....

Also, what application are you using to check CUDA Cores?Is it GPU-Z?

brick: Try to download now and let me know...If even so you can't, I strongly sugget you to contact your ISP, as you've stated you can't download the file even using a proxy server..

Best regards
09:25 November 16th, 2011
Can't download this build. I've tried to download it more than 30 times (yesterday and today). Tried different browsers and downloadmanagers. Also tried different (web)proxies, but can't get more than the half the file...
Please, can someone help me?
02:47 November 16th, 2011
@alb3530: It's a Nvidia GeForce GT 330m with forceware 188.67.
Thx in advance...
10:35 November 15th, 2011
60 . alb3530 (builder)
Nodes bug was fixed, will post build 41887 within some minutes....

Best regards
10:19 November 15th, 2011
59 . alb3530 (builder)
For all: there seems to be a problem with nodes, where you actuallty can't add nodes, it doesn't matter the context you're in...Scene, material, etc....

Lets wait it's fixed soon, cause it can be of no use if you're going to work with nodes in your current project....

Best regards
09:40 November 15th, 2011
please ignore my previous post
09:39 November 15th, 2011
thats great. thanks. there is something more, my smoke simulations dont seem to work after frame 250. they just stop
i am not sure what this is, if i mean this is a build problem or something.
thanks again
09:12 November 15th, 2011
56 . alb3530 (builder)
Fixed: Materials are being rendered properly with CUDA now

Best regards
08:15 November 15th, 2011
55 . alb3530 (builder)
vipvip24 and aombk: Thank you for pointing it out, i've just tested and could reproduce the problem...I will upload the fixed build within some minutes...

Best regards
06:33 November 15th, 2011
the glossy and glass materials renders incorectly in CUDA only. this didnt happen in previous versions
01:30 November 15th, 2011
the glossy material with yccles doesn't render correctly on 41846 ( it is transparent )
07:35 November 14th, 2011
52 . alb3530 (builder)
krow89: I'll verify it as soon as I come back home...Here it's working, but I'm using a Nvidia card and CUDA rendering....

cobalt31: Unfortunately, I don't have an ATI card to test the build on it.But I'll see what I can get anyway....

Speroangelus: What software are you using to check CUDA cores?Is it GPU-Z?
And what is the card and driver you are using?

Best regards
04:56 November 14th, 2011
I have notebook with a Cuda graphicscard, that's supposed to have 48 GPU-cores and an i7-CPU quadcore (emulated 8 cores).
When I use autodetection for Cuda I still only get 8 cores, could it be that only my CPU's cores are detected instead of the GPU's.
I've had this with every build of Cycles I've tried so far.
Has anyone an idea that might help me?
Thanks alot for these great builds though love it.
Thx in advance.
02:36 November 14th, 2011
Addon to my last message.... here is the console message I get when in OpenCL GPU Mode :

Invalid Option : Files/Blender (expected - at the beginning )
02:27 November 14th, 2011
I have a RADEON HD 5970 graphic card and I get a kernel error when selecting the GPU mode... any idea ?
01:59 November 14th, 2011
Just now I have retry (one time) and all work (without proxies) ... I have another problem with render/preview in GPU (http://imageshack.us/photo/my-images/522/detailsa.png/) ... Anyway thanks for support (and sorry for my english) ...
01:57 November 14th, 2011
Yeah, it runs GPU now, and has all the usual snazziness we're used to in BI Fastest builds. I really love this. Now I don't have to have a Cycles and a BI anymore. Just ONE Fastest.
Thank you, Alb.
And it's got OCEAN SIM!!! :D
22:40 November 13th, 2011
would it be possible that your builds resulted being faster than any other optimized build on tests you have done on "your machine", because they are built on "your machine"? therefore the build is optimized for your hardware? :)
17:57 November 13th, 2011
45 . alb3530 (builder)
kalifrago: I'll investigate...But, still, the OpenCL support is incomplete

MartianStories: I'm adding added experimental CUDA support to this build right now...please test and let me know..I've tested with a simple render and it seems like it's working.... ;)

Best regards
14:34 November 13th, 2011
Hey Alb, I've always loved your Fastest builds and I'm really excited to see you putting Cycles in them (I've always looked forward to having a Fastest Cycles.) This is very exciting stuff, and it was only a matter of time.
However, your Cycles Fastest is NOT THE Fastest. That's because there is no GPU CUDA rendering here.
You make a Fastest, and make it so that NVidia Cuda cards can run on GPU, you'll have a smash hit on your hands. And if you apply all the little tricks you've done to BI to get your Fastests, you'll have an army of Cycles addicts like me sending you love poetry.
13:10 November 13th, 2011
hello, first thanks for this build....
but openCL doesn't work for me,
error like this in the console :........ http://www.kaliposer.de/sonstiges/error.jpg..............
have you any idea ?
thank you.....
11:09 November 13th, 2011
42 . alb3530 (builder)
krow89: Try to download the build using some web-based proxy i.e. anoymouse.org ...Please post your results if you can...

Best regards
10:28 November 13th, 2011
Thanks alb3530 - getting Microsoft Visual C++ 2008 Redistributable Package (x64) fixed it.
08:36 November 13th, 2011
I have retry 2 time but nothing ... I get always a 20.4 MB file ... I downloaded another file (http://graphicall.org/56) and work ... Anyway thanks
08:19 November 13th, 2011
39 . alb3530 (builder)
krow89: I could download it normally here

Best regards
08:13 November 13th, 2011
I can't download it ... I get always a 20MB file (corrupted) ... Only my problem??? (sorry for english)
08:06 November 13th, 2011
37 . alb3530 (builder)
gregzaal: It works normally here....I've just updated the build...could you please test again?If no success, what is your machine's setup?And in what point it crashes?

It seems like some component is missing....Have you installed Microsoft Visual C++ 2008 Redistributable Package (x64)?

I always perform some basic tests before uploading here.More precisely, what I do is:

Open the application;
Check contrib scripts, to see if they are there;
Perform a test render;

Best regards
06:58 November 13th, 2011
Doesn't work for me at all: http://dl.dropbox.com/u/23382946/die.JPG
19:09 November 12th, 2011
OpenCL: C Version 1.1 or later required, found 1.0

Also how come no CUDA?
14:15 November 12th, 2011
Sorry quys!

I am not very good using Cycles yet and I just made little mistake.
I didn´t know that you can´t create or upload new image in Edit Mode if you are not added Texture Coordinate node to your object.

I can create new image in Object Mode, but I can´t do it in Edit Mode to specific object without adding Texture Coordinate node in Node Editor.
In blender Internal Render this was posibble.

Hopefully you get my idea =D
09:12 November 12th, 2011
33 . alb3530 (builder)
DanielCookie: even in the previous build it was working....I could successfully create a new image, and open an existing for UV Unwrapping usage.....could you please write a step-by step way to reproduce the problem?
07:56 November 12th, 2011
32 . alb3530 (builder)
stulleman: Try build 41769 or (later)

DanielCookie: I'll try to reproduce this problem here
07:38 November 12th, 2011
I can´t upload or make new image in UV/Image editor? Is it possible that the code is broken or something.
Thanks for help!
04:36 November 10th, 2011
Now I saw that the console pops up a short time when I start or close blender.
The error is:
OpenCl error (-1): Device not found.
OpenCl error(-34): Invalid context
OpenCl error(-34): Invalid context
OpenCl error(-36): Invalid command queue
OpenCl error(-34): Invalid context
OpenCl: failed to initialize device.

I searched for nvidia gt 540M and there was OpenCl mentioned.
02:16 November 10th, 2011
I'm getting the "Failed loading render kernel, see console for errors" Error, but I haven't any console.
My System : Win 7 64, intel core i5-2430M, nvidia GeForce GT540M, 8GB DDR3.
Any ideas?
16:35 November 9th, 2011
28 . alb3530 (builder)
Hakbit, CUDA is not implemented yet....

From commits:

Revision 41689 by blendix

* Windows: CUDA kernel compile at runtime is failing, probably will have to do precompiled kernel again.


But you can be sure it will be here as soon as it's implemented...

Best regards
07:31 November 9th, 2011
is CUDA wont working ? =/
04:19 October 23rd, 2011
Cool he fixed the material library crash.(sweet)
19:43 September 18th, 2011
25 . alb3530 (builder)
Reekdeb, Although It may sound controversal, Particle nodes are part of Hidden/Disabled Features for the Particles 2010 branch...

There're some visible features though, such as node frames.
09:54 September 17th, 2011
Where is Particles 2010? How to use it? I can't find any particle node buttons like in the screenshot. did you get it?
17:55 September 6th, 2011
23 . alb3530 (builder)
vitos1k, have you installed Microsoft Visual C++ 2008 Redistributable Package (x64)?

It should work on Windows 7 x64, as this is my very machine and I use Blender on it.....
01:48 September 6th, 2011
i get OpenMP related error when trying to launch this build
Intel Core2Duo E8400
Win 7 Pro 64bit
Can't launch this app because of wrong parallel architecture
01:36 September 6th, 2011
I don't open other layout (compositing, Animation,...)...
21:56 August 30th, 2011
thanks. :)
20:57 August 30th, 2011
19 . alb3530 (builder)
You can be sure whenever there's a relevant update, and as long as I'm online, I'll be updating the build.

Thank you for the feedback
20:26 August 30th, 2011
alb3530 , please apply the update below and reup..
20:25 August 30th, 2011
Revision 39811

Still defaulting to exr on save image...

make sure you have latest update by (campbellbarton)

20:51 August 21st, 2011
i think it would be cool if he made it like the bat3a builds they have everything..

lux render, yafaray and mitsuba exporter.

along with all the contrib and external addons.

this one..

18:04 August 21st, 2011
hi, if you look at my build here: http://www.graphicall.org/82
It includes the External scripts & some more stuff.
Basically it's your build with the extra scripts & file structure added.
If you can contact me on irc freenode #blenderpython
I can help with issues that sometimes arise with the scripts/modules or any other info you may require. :)
09:24 August 21st, 2011
14 . alb3530 (builder)
kayskywalker, I'd tried to use a build with that addon before, and that addon was the only one that couldn't be checked....

But as far I can remember, that one was some 2.58 build
08:40 August 21st, 2011
thanks, by the way, blender 2.59 doesn't support 'export to after effect addon' anymore? i can't find that addon anywhere.
08:01 August 21st, 2011
12 . alb3530 (builder)
@holy enigma: I was thinking about this before, but having someone asking for it was enough for me to include the addons....

Thanks for the suggestions

I'm thinking about including external addons soon as well...
22:05 August 19th, 2011
11 . alb3530 (builder)
It's done, meta-androcto...Contrib scripts are now separated, in fact it improved performance of addons window when it was maximized.It was very slow with all the scripts in the same folder....Thank you for the tip!
10:29 August 18th, 2011
hi, could you please add the contrib scripts into a folder 259/scripts/addons_contrib.
this is much nicer than all the scripts in the one folder.
22:40 August 17th, 2011
Mmmmm.. add-on's !!! :)

19:39 August 15th, 2011
would be cool if you started putting the contrib and extrenal addon scripts into your builds

and adding lux render, yafaray and mitsuba exporter.

Maybe have 2 builds "fastest lite" without all the addons.. and

maybe something like "fastest complete with external addons/lux, yafaray, mitsuba exporter" or something :)

(it would basically be like the nice bat3a's builds, just with a faster blender internal render,
would the build optimizations make external renders faster as well? hmmm dont know)
19:22 August 11th, 2011
It does render faster. Nice work!
19:55 August 9th, 2011
Please do not mistake 3D Fly mode with 3D Mouse support (spacenav).
02:59 July 26th, 2011
hia, this is a great build very fast.....not to take credit or anything......is there any chance in sending me a how to...../tutorial for making optimized blender for my computer......witch has a the following hardrware.......windows 7 64bt, 16gb ddr3 ram, amd phenom 1055t x6, amd 6950 2gb. benq g2222hdl, and 500gb 5400rpm harddrive.......
if you help you'll sve me the ordeal of converting to ubuntu
00:26 July 25th, 2011
A few percent is nothing... Limit of CPU is reached.
Blender has to be OpenCL entirely - composer, rendering (Cycles), animation playback and so on. Graphics card MUST accelerate calculations.
23:46 July 24th, 2011
same scene as below, 23 seconds faster than r37795 = 7% faster
23:35 July 24th, 2011
Nice. Rendered a simple scene with volumetric materials, indirect lighting and no compositing 5 min 14 sec vs. 5 min 49 sec with r38423. ASUS Win 7 intel core i7 ATI HD5870 6GB notebook.
19:37 July 24th, 2011
Works great, fastest I've seen yet.
Feeling talkative?
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