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silex (silex)
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User Since
Jun 9 2020, 1:36 PM (37 w, 6 d)

Recent Activity

Tue, Feb 2

silex (silex) added a comment to T85016: Performance regression when rendering at very high resolution CPU+GPU - Cycles.

I'm still trying to pinpoint exact driver <-> Blender version combination that was working better than current release and AMD drivers. It will take me couple more days I think.

Tue, Feb 2, 3:20 PM · BF Blender
silex (silex) awarded T82559: AMD GPU Denoising via "Radeon Image Filters" library. a Love token.
Tue, Feb 2, 3:17 PM · Cycles, BF Blender
silex (silex) awarded T82557: Cycles OpenCL hardware raytracing intersection for AMD Rx 6000 series a Love token.
Tue, Feb 2, 3:17 PM · BF Blender (2.90), Render & Cycles, Cycles

Jan 26 2021

silex (silex) added a comment to T85016: Performance regression when rendering at very high resolution CPU+GPU - Cycles.

Whoops. I forgot to include working version.
Now that I'm trying to test, this issue is present even in 2.83.10 LTS! And I'm unable to find Blender version in which hybrid OpenCL rendering don't have CPU underutilisation problem.
I remember it working without a problem in 2.90.1, branch: master, commit date: 2020-09-23 06:43, hash: 3e85bb34d0d7. In the meantime I upgraded GPU drivers and Linux kernel and after that this release also have this problem.
Pasting old system-info.txt:

Jan 26 2021, 4:11 PM · BF Blender

Jan 25 2021

silex (silex) awarded T73479: 3D View Selection Occlusion (Select Through) a Burninate token.
Jan 25 2021, 11:23 PM · Modeling, BF Blender

Jan 24 2021

silex (silex) updated the task description for T85016: Performance regression when rendering at very high resolution CPU+GPU - Cycles.
Jan 24 2021, 7:04 PM · BF Blender
silex (silex) awarded rB4f9e21bdc977: Fix T82591: Performance regression when rendering at very high resolution a Love token.
Jan 24 2021, 1:43 PM
silex (silex) created T85016: Performance regression when rendering at very high resolution CPU+GPU - Cycles.
Jan 24 2021, 1:04 PM · BF Blender

Jan 22 2021

silex (silex) awarded rBbbe6d4492823: Cycles: optimize device updates a 100 token.
Jan 22 2021, 4:34 PM

Jan 21 2021

silex (silex) awarded D10145: Subdivision: add support for vertex creasing a Love token.
Jan 21 2021, 4:12 PM

Jan 11 2021

silex (silex) added a comment to T84103: Smoke simulation dont show up after baking Noise.

Can confirm, it's working. Thank you!

Jan 11 2021, 12:51 PM · Nodes & Physics, BF Blender (2.92)
silex (silex) added a comment to T84578: Image Editor don't display correct image during rendering at very high resolution.

It's hard to tell from the image you attached, becase of the feature you chosed. In my 4th picture features on both images have the same size but different resolution.

Jan 11 2021, 10:56 AM · BF Blender
silex (silex) added a comment to T84578: Image Editor don't display correct image during rendering at very high resolution.

Thank you for checking. Please don't close it yet.
I assume you didn't change image output size from 19200x10800px?
If you can please save the rendered image and compare resolution of the image inside image editor in Blender with the resolution of the saved image. More feature-rich scene might be better example.

Jan 11 2021, 10:40 AM · BF Blender

Jan 10 2021

silex (silex) renamed T84578: Image Editor don't display correct image during rendering at very high resolution from Image Editor doesn't display correct image during rendering at very high resolution to Image Editor don't display correct image during rendering at very high resolution.
Jan 10 2021, 11:18 PM · BF Blender
silex (silex) created T84578: Image Editor don't display correct image during rendering at very high resolution.
Jan 10 2021, 10:56 PM · BF Blender
silex (silex) awarded D7946: [Scr-ops] Drag resize operator a Love token.
Jan 10 2021, 5:20 PM · BF Blender, User Interface
silex (silex) added a comment to D7946: [Scr-ops] Drag resize operator.

Want to point that alt-click-drag is commonly used in many Linux distros for moving windows around.
It might be good idea to take this into account when assigning shortcut for this functionality.

Jan 10 2021, 5:19 PM · BF Blender, User Interface
silex (silex) awarded T52725: Branched path unification a Love token.
Jan 10 2021, 2:13 PM · Render & Cycles, Cycles

Jan 9 2021

silex (silex) added a comment to T82591: Performance regression when rendering at very high resolution.

I've run some tests and it seems that regression is happening in hybrid CPU+GPU rendering also.
Unfortunately I cannot pinpoint exact scene config for solid example.
Default cube renders without regression, but on production scenes with heavy geometry with displacement, volumes and lots of lights (both emissive mesh and standard) I have dips to 0% CPU utilisation.


CPU-only rendering regression is fixed.

Jan 9 2021, 9:42 PM · EEVEE & Viewport, BF Blender
silex (silex) awarded T74186: Proposal for fast high poly mesh editing a Burninate token.
Jan 9 2021, 3:12 PM · Modeling
silex (silex) awarded T57936: Mesh modeling performance regressions a Burninate token.
Jan 9 2021, 3:11 PM · Performance, Modeling, BF Blender
silex (silex) awarded T68915: Light linking a Burninate token.
Jan 9 2021, 1:30 AM · Render & Cycles, Cycles, BF Blender

Jan 8 2021

silex (silex) awarded T72337: Shader Node Additions a Love token.
Jan 8 2021, 7:41 PM · EEVEE & Viewport, Render & Cycles, Cycles, Nodes
silex (silex) awarded D3607: Cycles: Implement render passes that contain all lighting from lights in a specified group a Love token.
Jan 8 2021, 7:38 PM · BF Blender (2.83), Render & Cycles

Jan 5 2021

silex (silex) awarded D9967: Add support for node socket tooltips a Love token.
Jan 5 2021, 2:00 PM · User Interface
silex (silex) awarded T68923: Vertex color baking with Cycles a Love token.
Jan 5 2021, 1:53 PM · Render & Cycles, Cycles, BF Blender
silex (silex) created T84392: Mirroring object causes cloth sim collision detection error..
Jan 5 2021, 4:08 AM · BF Blender

Jan 4 2021

silex (silex) awarded D4676: Cycles: Improved sampling for sphere lights. a Love token.
Jan 4 2021, 9:23 PM · Render & Cycles, Cycles
silex (silex) awarded D6075: Cycles: Improved equiangular sampling. a Love token.
Jan 4 2021, 9:22 PM · Render & Cycles, Cycles
silex (silex) awarded D8663: Cycles: Many Lights Sampling a Love token.
Jan 4 2021, 4:39 PM · Restricted Project, Render & Cycles, Cycles
silex (silex) awarded T82583: Cycles split kernel optimizations a Love token.
Jan 4 2021, 3:56 PM · Cycles, Render & Cycles
silex (silex) awarded T76970: Cycles viewport unneccessary update calls a Burninate token.
Jan 4 2021, 3:55 PM · Render & Cycles
silex (silex) awarded T77170: Mantaflow smoke preview will not update till domain settings are changed a Burninate token.
Jan 4 2021, 3:46 PM · BF Blender (2.93), Nodes & Physics
silex (silex) awarded D9932: Cycles: Implement Dwivedi guiding for path-traced subsurface scattering a Love token.
Jan 4 2021, 3:46 PM
silex (silex) awarded T84103: Smoke simulation dont show up after baking Noise a Burninate token.
Jan 4 2021, 3:45 PM · Nodes & Physics, BF Blender (2.92)

Dec 27 2020

silex (silex) awarded D5799: Add support for Zstd compression for .blend files a Love token.
Dec 27 2020, 12:52 PM

Dec 21 2020

silex (silex) awarded T79174: Cycles Procedural API and faster scene update a Love token.
Dec 21 2020, 10:30 PM · BF Blender (2.90), Render & Cycles, Cycles
silex (silex) added a comment to T83939: Blender randomly stops responding under Linux..

After uninstalling AMDGPU-PRO drivers the hangups are gone. I've succesfully run animation render overnight and baked smoke simulation.

Dec 21 2020, 12:48 PM · BF Blender

Dec 19 2020

silex (silex) added a comment to T83939: Blender randomly stops responding under Linux..

Most of the hangups are happening in 2.90.1, as this is the version I'm running for production right now.
But it was released 23. Sep - way before multithreaded geometry export patch (21 Oct).

Dec 19 2020, 6:46 PM · BF Blender
silex (silex) updated subscribers of T83939: Blender randomly stops responding under Linux..

@Ankit Meel (ankitm) suggested in DevTalk thread https://devtalk.blender.org/t/blender-randomly-hangs-what-cli-debug-options-should-be-enabled-for-gpu-issues/16660/3 running Blender with only one thread (-t 1 argument) to further troubleshoot.
I run animation render overnight that way and there's no sign of hangup so far, and Blender is still responsive.

Dec 19 2020, 6:27 PM · BF Blender
silex (silex) added a comment to T82591: Performance regression when rendering at very high resolution.

Thank you!
After quick test the CPU looks fully utilised in all above scenarios.
As for exact performance numbers I'll need to check out. Nevertheless most regression seems to be gone.

Dec 19 2020, 6:17 PM · EEVEE & Viewport, BF Blender
silex (silex) added a comment to T83939: Blender randomly stops responding under Linux..

Thank you. I'll try to fiddle with drivers and find some solid information.

Dec 19 2020, 1:05 PM · BF Blender

Dec 18 2020

silex (silex) created T83939: Blender randomly stops responding under Linux..
Dec 18 2020, 9:11 PM · BF Blender

Dec 17 2020

silex (silex) awarded T73363: Alembic / USD a Love token.
Dec 17 2020, 10:14 PM · USD, Alembic, Pipeline, Assets & I/O, BF Blender

Dec 14 2020

silex (silex) awarded rBbc0a6b0400ce: Fix T71759: Sculpt/Vertex/Weight Paint Brush Size Gets Undone After Undoing a… a 100 token.
Dec 14 2020, 8:52 PM
silex (silex) added a comment to T82591: Performance regression when rendering at very high resolution.

After https://developer.blender.org/rB2e1498ff16198742ba543004fd9c2c49083a6095 patch I'm no longer experiencing crashes with rendering which is nice.
I've done some tests on current build hash 010f44b855ca branch master.
The bigger the render image size the bigger the performance hit.

Dec 14 2020, 8:51 PM · EEVEE & Viewport, BF Blender

Dec 7 2020

silex (silex) awarded T82591: Performance regression when rendering at very high resolution a Love token.
Dec 7 2020, 10:49 AM · EEVEE & Viewport, BF Blender

Nov 10 2020

silex (silex) added a comment to T82042: Crash when rendering huge images on CPU 2.92.0 alpha.

Thank you. I want co confirm, that on recent builds the problem persists - after launching Blender from command line I got segfault as before.
The crash occurs straight after launching render. There is no error message either.

Nov 10 2020, 12:14 PM · EEVEE & Viewport, BF Blender

Nov 1 2020

silex (silex) awarded D9324: Cycles: Implement tile stealing to improve CPU+GPU rendering performance a Love token.
Nov 1 2020, 10:42 AM
silex (silex) updated the task description for T82042: Crash when rendering huge images on CPU 2.92.0 alpha.
Nov 1 2020, 10:33 AM · EEVEE & Viewport, BF Blender

Oct 27 2020

silex (silex) added a comment to T82042: Crash when rendering huge images on CPU 2.92.0 alpha.

Thanks for checking this.
I should have mentioned that I dont use GPU for rendering - Cycles on CPU only.

Oct 27 2020, 3:23 PM · EEVEE & Viewport, BF Blender

Oct 25 2020

silex (silex) renamed T82042: Crash when rendering huge images on CPU 2.92.0 alpha from Crash when rendering huge images on CPU 2.92.0 aplha to Crash when rendering huge images on CPU 2.92.0 alpha.
Oct 25 2020, 12:48 AM · EEVEE & Viewport, BF Blender
silex (silex) renamed T82042: Crash when rendering huge images on CPU 2.92.0 alpha from Crash when rendering huge images on CPU to Crash when rendering huge images on CPU 2.92.0 aplha.
Oct 25 2020, 12:48 AM · EEVEE & Viewport, BF Blender
silex (silex) created T82042: Crash when rendering huge images on CPU 2.92.0 alpha.
Oct 25 2020, 12:45 AM · EEVEE & Viewport, BF Blender

Sep 28 2020

silex (silex) awarded T77889: Cycles: Many Lights Sampling a Like token.
Sep 28 2020, 11:20 PM · Render & Cycles, Restricted Project, Cycles

Jun 16 2020

silex (silex) awarded D6322: Mesh: Select through a Love token.
Jun 16 2020, 1:27 PM

Jun 9 2020

silex (silex) awarded T67744: Boolean Redesign a Love token.
Jun 9 2020, 4:20 PM · BF Blender (2.91), Modeling
silex (silex) awarded T73993: Snapping & precision modeling improvements a Love token.
Jun 9 2020, 4:20 PM · Modeling
silex (silex) awarded T73360: Fast highpoly mesh editing a Love token.
Jun 9 2020, 4:20 PM · Performance, Modeling, BF Blender
silex (silex) awarded T73317: Multires a Love token.
Jun 9 2020, 4:18 PM · Sculpt, Paint & Texture, BF Blender
silex (silex) awarded T54656: Cycles/Eevee texture nodes for modifiers, painting and more a Love token.
Jun 9 2020, 4:18 PM · Render & Cycles, BF Blender, Sculpt, Paint & Texture, Rendering
silex (silex) awarded T68873: Highpoly mesh sculpting performance a Love token.
Jun 9 2020, 4:18 PM · Performance, Sculpt, Paint & Texture
silex (silex) awarded T68996: OpenSubdiv GPU acceleration a Love token.
Jun 9 2020, 4:16 PM · EEVEE & Viewport, BF Blender
silex (silex) awarded T68989: Selection future-proof design a Love token.
Jun 9 2020, 4:16 PM · EEVEE & Viewport, BF Blender
silex (silex) awarded T68990: Vulkan support a Love token.
Jun 9 2020, 4:16 PM · EEVEE & Viewport, BF Blender
silex (silex) awarded D2149: Cycles: Add optional Blue-Noise Dithered Sobol Sampling a Love token.
Jun 9 2020, 4:14 PM · Cycles, Render & Cycles
silex (silex) awarded T74581: Adaptive Sampling Improvements a Love token.
Jun 9 2020, 4:14 PM · BF Blender (2.90), Render & Cycles, Cycles
silex (silex) awarded D6464: WIP Shader: SDF Node a Love token.
Jun 9 2020, 4:12 PM
silex (silex) awarded T60695: Optimized per-datablock global undo a Love token.
Jun 9 2020, 4:10 PM · Core, BF Blender, Performance
silex (silex) awarded T73359: Blender editing performance with many datablocks a Love token.
Jun 9 2020, 4:09 PM · Core, Performance, BF Blender
silex (silex) awarded T73366: Asset Manager “Basics” a Love token.
Jun 9 2020, 4:09 PM · Restricted Project, User Interface, Pipeline, Assets & I/O, BF Blender
silex (silex) awarded T73324: Particles Nodes a Love token.
Jun 9 2020, 4:08 PM · Nodes, Nodes & Physics, BF Blender
silex (silex) awarded T73479: 3D View Selection Occlusion (Select Through) a Like token.
Jun 9 2020, 4:06 PM · Modeling, BF Blender
silex (silex) awarded T76678: Visual Keymap Editor a Love token.
Jun 9 2020, 4:06 PM · User Interface, BF Blender
silex (silex) awarded T67088: Everything Nodes UX a Love token.
Jun 9 2020, 4:05 PM · User Interface, BF Blender
silex (silex) awarded T54642: Asset Project: User Interface a Love token.
Jun 9 2020, 4:05 PM · Restricted Project, Pipeline, Assets & I/O, BF Blender, User Interface
silex (silex) created T77681: Musgrave texture behaves differently with OSL rendering turned on..
Jun 9 2020, 2:06 PM · Render & Cycles, BF Blender