Point Density volume rendering not working with opencl gpu compute #71309

Closed
opened 2019-11-03 02:20:05 +01:00 by gabe2252 · 14 comments

System Information
Operating system: Linux-5.0.0-32-generic-x86_64-with-debian-buster-sid 64 Bits
Graphics card: Radeon RX 580 Series (POLARIS10, DRM 3.33.0, 5.0.0-32-generic, LLVM 9.0.0) X.Org 4.5 (Core Profile) Mesa 19.2.0-devel

Blender Version
Broken: version: 2.82 (sub 1), branch: master, commit date: 2019-11-02 10:51, hash: 07e335e79d
Worked: (optional)

Short description of error
Point density volume material not rendering with gpu. Works fine with cpu.
cpu
cpu.jpg
cpu+gpu
gpu.jpg
gpu only
gpuonly.jpg
Exact steps for others to reproduce the error

  1. open blend file: brokent.blend
  2. render cpu only
  3. render gpu only
  4. compare results
**System Information** Operating system: Linux-5.0.0-32-generic-x86_64-with-debian-buster-sid 64 Bits Graphics card: Radeon RX 580 Series (POLARIS10, DRM 3.33.0, 5.0.0-32-generic, LLVM 9.0.0) X.Org 4.5 (Core Profile) Mesa 19.2.0-devel **Blender Version** Broken: version: 2.82 (sub 1), branch: master, commit date: 2019-11-02 10:51, hash: `07e335e79d` Worked: (optional) **Short description of error** Point density volume material not rendering with gpu. Works fine with cpu. cpu ![cpu.jpg](https://archive.blender.org/developer/F7908483/cpu.jpg) cpu+gpu ![gpu.jpg](https://archive.blender.org/developer/F7908489/gpu.jpg) gpu only ![gpuonly.jpg](https://archive.blender.org/developer/F7908519/gpuonly.jpg) **Exact steps for others to reproduce the error** 1. open blend file: [brokent.blend](https://archive.blender.org/developer/F7908472/brokent.blend) 2. render cpu only 3. render gpu only 4. compare results
Author

Added subscriber: @gabe2252

Added subscriber: @gabe2252
Member

Added subscriber: @JacquesLucke

Added subscriber: @JacquesLucke
Member

Changed status from 'Needs Triage' to: 'Needs User Info'

Changed status from 'Needs Triage' to: 'Needs User Info'
Member

Is this still an issue?
Looks like the .blend file is missing some texture.

Is this still an issue? Looks like the .blend file is missing some texture.
Author

The textures where from the character model I deleted to save upload time. The Point density material doesn't use any textures. I'll test it again with a fresh 2.82 build and clean up the blend file more.

The textures where from the character model I deleted to save upload time. The Point density material doesn't use any textures. I'll test it again with a fresh 2.82 build and clean up the blend file more.
Author

I tried to test with the lasted build but opencl seems to be completely broken for me. I reported a new bug here https://developer.blender.org/T73006

I tried to test with the lasted build but opencl seems to be completely broken for me. I reported a new bug here https://developer.blender.org/T73006

Added subscriber: @iss

Added subscriber: @iss

Changed status from 'Needs User Info' to: 'Confirmed'

Changed status from 'Needs User Info' to: 'Confirmed'

Can confirm on win, Radeon RX 550, OpenCL

Can confirm on win, Radeon RX 550, OpenCL

Added subscriber: @mont29

Added subscriber: @mont29

And another OpenCL issue…

And another OpenCL issue…

Added subscriber: @ThomasDinges

Added subscriber: @ThomasDinges

Changed status from 'Confirmed' to: 'Archived'

Changed status from 'Confirmed' to: 'Archived'

OpenCL rendering support was removed in Blender 3.0.
The combination of the limited Cycles kernel implementation, driver bugs, and stalled OpenCL standard
has made maintenance too difficult. Thanks for your report, but it's unlikely that there will be further fixes for OpenCL.

For AMD GPUs, there is a new backend based on the HIP platform.
In Blender 3.0, this is supported on Windows with RDNA and RDNA2 generation discrete graphics cards.
It includes Radeon RX 5000 and RX 6000 series GPUs. Driver version Radeon Pro 21.Q4 or newer is required.

https://wiki.blender.org/wiki/Reference/Release_Notes/3.0/Cycles
https://code.blender.org/2021/11/next-level-support-for-amd-gpus/

OpenCL rendering support was removed in Blender 3.0. The combination of the limited Cycles kernel implementation, driver bugs, and stalled OpenCL standard has made maintenance too difficult. Thanks for your report, but it's unlikely that there will be further fixes for OpenCL. For AMD GPUs, there is a new backend based on the HIP platform. In Blender 3.0, this is supported on Windows with RDNA and RDNA2 generation discrete graphics cards. It includes Radeon RX 5000 and RX 6000 series GPUs. Driver version Radeon Pro 21.Q4 or newer is required. https://wiki.blender.org/wiki/Reference/Release_Notes/3.0/Cycles https://code.blender.org/2021/11/next-level-support-for-amd-gpus/
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Reference: blender/blender#71309
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