RenderingProject
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Details

Description

Blender internal renderer and general rendering pipeline.

Module Owners: @Brecht Van Lommel (brecht) @Ton Roosendaal (ton)
Developers: @Shinsuke Irie (irie)

Recent Activity

Today

ronan ducluzeau (zeauro) closed T53380: Minpixels for strand rendering crushes blender in CPU mode as Resolved.
Thu, Nov 23, 1:42 PM · Rendering, Cycles, BF Blender
Viktor Mukayev (vitos1k) added a comment to T53380: Minpixels for strand rendering crushes blender in CPU mode.

Thanks. It works fine in a daily build

Thu, Nov 23, 10:43 AM · Rendering, Cycles, BF Blender
Sergey Sharybin (sergey) triaged T53380: Minpixels for strand rendering crushes blender in CPU mode as Incomplete priority.

This issue should be fixed in latest builds already. So test blender from builder.blender.org and see if the issue happens there.

Thu, Nov 23, 10:34 AM · Rendering, Cycles, BF Blender
Viktor Mukayev (vitos1k) created T53380: Minpixels for strand rendering crushes blender in CPU mode.
Thu, Nov 23, 10:20 AM · Rendering, Cycles, BF Blender

Sun, Nov 19

Zsigmond (Zsigmond) closed T53351: Cycles Render won't render as Invalid.
Sun, Nov 19, 9:19 PM · Rendering, Cycles, BF Blender
Zsigmond (Zsigmond) updated the task description for T53351: Cycles Render won't render.
Sun, Nov 19, 9:14 PM · Rendering, Cycles, BF Blender
Vuk Gardašević (lijenstina) triaged T53351: Cycles Render won't render as Incomplete priority.

Please follow our submission template and guidelines and make a complete, valid bug report, with required info, precise description of the issue, precise steps to reproduce it, small and simple .blend and/or other files to do so if needed, etc.

Sun, Nov 19, 9:09 PM · Rendering, Cycles, BF Blender
Zsigmond (Zsigmond) created T53351: Cycles Render won't render.
Sun, Nov 19, 9:01 PM · Rendering, Cycles, BF Blender

Tue, Nov 14

Sergey Sharybin (sergey) closed T53068: AMD Threadripper not working well with Blender as Resolved by committing rB55696b56d984: Fix T53068: AMD Threadripper not working well with Blender.
Tue, Nov 14, 12:56 PM · Rendering, BF Blender
rob (blenderpedia) added a comment to T53068: AMD Threadripper not working well with Blender .

Blender-fix solved the issue

Tue, Nov 14, 8:10 AM · Rendering, BF Blender

Mon, Nov 13

Aaron Carlisle (Blendify) added a comment to T53068: AMD Threadripper not working well with Blender .

I can confirm this fix works!
Thanks a lot for solving this problem.

Mon, Nov 13, 11:16 PM · Rendering, BF Blender
rob (blenderpedia) added a comment to T53068: AMD Threadripper not working well with Blender .

I can confirm this fix works!
Thanks a lot for solving this problem.

Mon, Nov 13, 10:13 PM · Rendering, BF Blender
Joel Godin (FloridaJo) added a comment to T53068: AMD Threadripper not working well with Blender .

@Sergey Sharybin (sergey) wrong Rob, try @rob (blenderpedia)

Mon, Nov 13, 6:12 PM · Rendering, BF Blender
Sergey Sharybin (sergey) lowered the priority of T53068: AMD Threadripper not working well with Blender from Normal to Incomplete.

Setting priority to incomplete since we are awaiting more feedback now.

Mon, Nov 13, 5:46 PM · Rendering, BF Blender
Sergey Sharybin (sergey) updated subscribers of T53068: AMD Threadripper not working well with Blender .

Managed to redo system becoming frozen at some point during synchronization after BIOS update.

Mon, Nov 13, 5:46 PM · Rendering, BF Blender
Ton Roosendaal (ton) added a comment to T53068: AMD Threadripper not working well with Blender .

All our standard benchmark files survive. Performance is good. We don't have time now to restore or test production files.
It would go much faster if you would share a case, or tell us how to produce a case that's slow? Use one of the benchmark files, duplicate stuff or so?

Mon, Nov 13, 3:07 PM · Rendering, BF Blender
rob (blenderpedia) added a comment to T53068: AMD Threadripper not working well with Blender .

So nice!, now burn the CPU with some crazy scenes to find out if there is something wrong with scene buffering.

Mon, Nov 13, 12:56 PM · Rendering, BF Blender
Ton Roosendaal (ton) added a comment to T53068: AMD Threadripper not working well with Blender .

We've just received a beefy system with Threadripper! Testing started :)

Mon, Nov 13, 12:52 PM · Rendering, BF Blender

Sat, Nov 11

Vuk Gardašević (lijenstina) raised the priority of T53235: Particle Instances not excluded in alpha channel mask from Incomplete to Needs Triage.

Additional information was provided.
Setting to Needs Triage.

Sat, Nov 11, 1:49 PM · Rendering, BF Blender

Fri, Nov 3

Aaron Smithey (asmithey) added a comment to T53235: Particle Instances not excluded in alpha channel mask.

System Information
dual E5 2660 v3's (2.6 ghz) (40 Threads) Z10PE D8 WS, 96 gigs of ram win 7 x64 GTX 970 Windows 7,

Fri, Nov 3, 5:56 PM · Rendering, BF Blender
Bastien Montagne (mont29) triaged T53235: Particle Instances not excluded in alpha channel mask as Incomplete priority.

Please follow our submission template and guidelines, also read these tips about bug reports, and make a complete, valid bug report, with required info, precise description of the issue, precise steps to reproduce it, small and simple .blend and/or other files to do so if needed, etc.

Fri, Nov 3, 3:44 PM · Rendering, BF Blender

Tue, Oct 31

Sergey Sharybin (sergey) added a commit to T52533: Blender Shuts down when rendering duplicated smoke domain.: rC5238b1982e2b: Fix T52533: Blender shuts down when rendering duplicated smoke domain.
Tue, Oct 31, 4:38 PM · Physics, Cycles, Rendering, BF Blender
Sergey Sharybin (sergey) added a commit to T53098: Using Texture nodes for World nodes, crashes Blender when trying to render on GPU (OpenCL): rCd1d87183dc94: Fix T53098, T53079: OpenCL world texture errors after recent changes..
Tue, Oct 31, 4:37 PM · Rendering, BF Blender

Sun, Oct 29

Chris Clark (zodiark1593) added a comment to T52947: Crash during render due to denoising.

I've several systems at home, and noticed that Cycles crashed when I had the Denoise feature enabled on my Intel Atom laptop.

Sun, Oct 29, 1:14 AM · Rendering, Cycles, BF Blender

Oct 24 2017

Brecht Van Lommel (brecht) added a comment to T53068: AMD Threadripper not working well with Blender .

Right, I'd be happy to debug it at bconf. Remote desktop access would work as well at some other time.

Oct 24 2017, 11:51 AM · Rendering, BF Blender
Ton Roosendaal (ton) added a comment to T53068: AMD Threadripper not working well with Blender .

AMD was meant to send us (Blender Institute) a threadripper in July already. I reminded them again what happens with it.

Oct 24 2017, 10:53 AM · Rendering, BF Blender

Oct 21 2017

ronan ducluzeau (zeauro) added a project to T53116: None type of texture coordinates: Rendering.
Oct 21 2017, 11:03 AM · Rendering, BF Blender

Oct 20 2017

Brecht Van Lommel (brecht) added a comment to T53038: Principled shader clearcoat roughness inconsistent change from 0.0177 to 0.0178..

Right, the fixed 0.25 roughness is definitely a hack, hopefully we can get rid of that too.

Oct 20 2017, 2:05 PM · Rendering, Cycles
Pascal Schön (VanCantus) added a revision to T53038: Principled shader clearcoat roughness inconsistent change from 0.0177 to 0.0178.: D2890: Solve issue with importance sampling at Principle shader clearcoat calculation.
Oct 20 2017, 11:21 AM · Rendering, Cycles
Pascal Schön (VanCantus) added a comment to T53038: Principled shader clearcoat roughness inconsistent change from 0.0177 to 0.0178..

Maybe also the fixed roughness of 0.25 for the G term can cause some issues. Disney didn't really say in their paper from 2012 what the purpose of this hack was, but only that it's "found to be plausible and artistically pleasing". I will try at first to change only the D term to GGX without changing the G term (which means keeping the 0.25 roughness here) and look if this causes more problems and if so, I think we should go with having a consistent roughness throughout the whole clearcoat calculation. By doing so, we wouldn't need to have a distinction between clearcoat and non-clearcoat in the Microfacet BSDF evaluation (except for the sample weight) anymore.

Oct 20 2017, 8:31 AM · Rendering, Cycles
Pascal Schön (VanCantus) added a comment to T53038: Principled shader clearcoat roughness inconsistent change from 0.0177 to 0.0178..

@Brecht Van Lommel (brecht), yes, I see this like you do. I don't think that we get a real benefit out of the GTR1 distribution. The difference (especially because clearcoat is only applied with a pre-factor of 0.25) should be pretty low and can thus be neglected. For me it seems ok to switch to GGX, but I will at first try to compare both versions today before adding a patch.

Oct 20 2017, 7:07 AM · Rendering, Cycles

Oct 18 2017

Brecht Van Lommel (brecht) updated subscribers of T53038: Principled shader clearcoat roughness inconsistent change from 0.0177 to 0.0178..

@Pascal Schön (VanCantus), the root of the issue here seems tricky to solve.

Oct 18 2017, 11:32 PM · Rendering, Cycles
Brecht Van Lommel (brecht) closed T53098: Using Texture nodes for World nodes, crashes Blender when trying to render on GPU (OpenCL) as Resolved by committing rB92611dada67f: Fix T53098, T53079: OpenCL world texture errors after recent changes..
Oct 18 2017, 3:20 AM · Rendering, BF Blender
Claudio D. (claudio) updated the task description for T53098: Using Texture nodes for World nodes, crashes Blender when trying to render on GPU (OpenCL).
Oct 18 2017, 1:13 AM · Rendering, BF Blender
Claudio D. (claudio) created T53098: Using Texture nodes for World nodes, crashes Blender when trying to render on GPU (OpenCL).
Oct 18 2017, 1:08 AM · Rendering, BF Blender

Oct 17 2017

rob (blenderpedia) added a comment to T53068: AMD Threadripper not working well with Blender .

@Brecht Van Lommel (brecht), we don't have threadripper at the studio, only Ryzen 7 1800X.

Some other questions / ideas to troubleshoot the issue:

  • Make sure all Windows updates are installed.
  • Disable any possible power saving setting in BIOS.
  • Disable any possible power saving settings in Windows itself.
  • Disable HyperThreading.
  • Check whether Blender detects proper number of CPU threads.
  • Get Ubuntu LiveCD and see if there will be a performance issue on Linux.
Oct 17 2017, 12:55 PM · Rendering, BF Blender
Sergey Sharybin (sergey) added a comment to T53068: AMD Threadripper not working well with Blender .

@Brecht Van Lommel (brecht), we don't have threadripper at the studio, only Ryzen 7 1800X.

Oct 17 2017, 12:42 PM · Rendering, BF Blender
Brecht Van Lommel (brecht) raised the priority of T53068: AMD Threadripper not working well with Blender from Incomplete to Normal.

@Sergey Sharybin (sergey), is there a machine with a CPU like this in the Blender Institute?

Oct 17 2017, 12:15 PM · Rendering, BF Blender
rob (blenderpedia) added a comment to T53068: AMD Threadripper not working well with Blender .

The first time i tried to render the scene was unpacked. After hanging for hours i started using all the benchmark files on the blender website and comparing this with my intel system. On this point i saw a significant difference between the threadripper and my intel sytem. Not on the small ones like the BMW, classroom, but the production benchmark and my own scenes. In my opinion most of the threadripper tests where done on these scenes, and not large scale RAM scenes.

Oct 17 2017, 9:28 AM · Rendering, BF Blender

Oct 16 2017

Carlo Andreacchio (candreacchio) added a comment to T53068: AMD Threadripper not working well with Blender .

Does it work if you unpack the textures first?

Oct 16 2017, 10:50 PM · Rendering, BF Blender
Joel Godin (FloridaJo) added a comment to T53068: AMD Threadripper not working well with Blender .

@rob (blenderpedia) Okay, gotcha.

Oct 16 2017, 8:49 PM · Rendering, BF Blender
rob (blenderpedia) added a comment to T53068: AMD Threadripper not working well with Blender .

@Brecht Van Lommel (brecht) I'm not sure he did the OpenMP test as you described.
The video showed him changing threads in the UI as opposed to a command line command. Is that the same?
Rob, can you verify that you ran this in command line?

cd c:\<blender installation directory>
set OMP_NUM_THREADS=1
blender
Oct 16 2017, 6:19 PM · Rendering, BF Blender
Joel Godin (FloridaJo) added a comment to T53068: AMD Threadripper not working well with Blender .

@Brecht Van Lommel (brecht) I'm not sure he did the OpenMP test as you described.
The video showed him changing threads in the UI as opposed to a command line command. Is that the same?
Rob, can you verify that you ran this in command line?

Oct 16 2017, 5:48 PM · Rendering, BF Blender
rob (blenderpedia) added a comment to T53068: AMD Threadripper not working well with Blender .

Intresting result when doing a blender internal benchmark test. I used an 11 GB ram scene on my 4770K and threadripper workstations.

Oct 16 2017, 9:51 AM · Rendering, BF Blender

Oct 15 2017

Brecht Van Lommel (brecht) added a comment to T53068: AMD Threadripper not working well with Blender .

@Joel Godin (FloridaJo), the GPU is not involved in the synchronizing objects stage, so I doubt it's causing issues here.

Oct 15 2017, 8:39 PM · Rendering, BF Blender
Joel Godin (FloridaJo) added a comment to T53068: AMD Threadripper not working well with Blender .

It doesn't look like it's the CPU.
You may want to see if it is a GPU bottleneck.
GPUview is the tool for that, a description of it is here;
https://graphics.stanford.edu/~mdfisher/GPUView.html

Oct 15 2017, 8:11 PM · Rendering, BF Blender
rob (blenderpedia) added a comment to T53068: AMD Threadripper not working well with Blender .

Which parts of the render are slow? The video shows just the synchronizing objects stage, is BVH build slow too, and path tracing?

Oct 15 2017, 1:47 PM · Rendering, BF Blender
Brecht Van Lommel (brecht) triaged T53068: AMD Threadripper not working well with Blender as Incomplete priority.

Which parts of the render are slow? The video shows just the synchronizing objects stage, is BVH build slow too, and path tracing?

Oct 15 2017, 1:31 PM · Rendering, BF Blender
rob (blenderpedia) added a comment to T53068: AMD Threadripper not working well with Blender .

I created a video including microsoft Process Explorer.

Oct 15 2017, 12:03 PM · Rendering, BF Blender
Joel Godin (FloridaJo) added a comment to T53068: AMD Threadripper not working well with Blender .

Hello Rob.
Can you go to this page and follow the instructions for installing the Microsoft Process Explorer
to better show the threads running during that process?

Oct 15 2017, 4:36 AM · Rendering, BF Blender