Cycles - difference between OpenCL and CUDA with AO simplify #53349

Closed
opened 2017-11-19 16:46:51 +01:00 by mathieu menuet · 11 comments

System Information
Win7 x64 1080Ti and Vega 64 with latest drivers

Blender Version
Broken: f77cdd1d59
Worked: 659ba012b0

Short description of error
AO simplify is black, whatever the world is set to.

Exact steps for others to reproduce the error
Render attached file bug ao opencl.blend with Cuda and with OpenCL, you get this
Cuda, correct:
cuda.png
OpenCL, wrong:
opencl.png

**System Information** Win7 x64 1080Ti and Vega 64 with latest drivers **Blender Version** Broken: f77cdd1d59f6e895b567c4d5fdcc6f2440e03307 Worked: 659ba012b0f30450c6de13f8b1c2fccce32fc461 **Short description of error** AO simplify is black, whatever the world is set to. **Exact steps for others to reproduce the error** Render attached file [bug ao opencl.blend](https://archive.blender.org/developer/F1159893/bug_ao_opencl.blend) with Cuda and with OpenCL, you get this Cuda, correct: ![cuda.png](https://archive.blender.org/developer/F1159889/cuda.png) OpenCL, wrong: ![opencl.png](https://archive.blender.org/developer/F1159890/opencl.png)
Author

Changed status to: 'Open'

Changed status to: 'Open'
Author

Added subscriber: @bliblubli

Added subscriber: @bliblubli
Author

https:*git.blender.org/gitweb/gitweb.cgi/blender.git/commit/659ba012b0f30450c6de13f8b1c2fccce32fc461 render correctly and https:*git.blender.org/gitweb/gitweb.cgi/blender.git/commit/f77cdd1d59f6e895b567c4d5fdcc6f2440e03307 renders black

https:*git.blender.org/gitweb/gitweb.cgi/blender.git/commit/659ba012b0f30450c6de13f8b1c2fccce32fc461 render correctly and https:*git.blender.org/gitweb/gitweb.cgi/blender.git/commit/f77cdd1d59f6e895b567c4d5fdcc6f2440e03307 renders black
Author

Added subscriber: @brecht

Added subscriber: @brecht

Added subscribers: @MaiLavelle, @mont29

Added subscribers: @MaiLavelle, @mont29
Mai Lavelle was assigned by Bastien Montagne 2017-11-20 08:38:51 +01:00

@MaiLavelle, think that one is for you? Thanks. :)

@MaiLavelle, think that one is for you? Thanks. :)
Mai Lavelle removed their assignment 2017-11-21 09:21:23 +01:00
Brecht Van Lommel was assigned by Mai Lavelle 2017-11-21 09:21:23 +01:00
Author

here is the fix fix_ao.diff

here is the fix [fix_ao.diff](https://archive.blender.org/developer/F1187866/fix_ao.diff)
Author

@brecht I don't have commit rights, could you commit it please?

@brecht I don't have commit rights, could you commit it please?

This issue was referenced by blender/cycles@af120f146a

This issue was referenced by blender/cycles@af120f146aaf00207f6410bc15fc2389a7fa86dd

This issue was referenced by 83e80db56e

This issue was referenced by 83e80db56ec90c2059d51768f0a90d2d21aa32b1

Changed status from 'Open' to: 'Resolved'

Changed status from 'Open' to: 'Resolved'
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Reference: blender/blender#53349
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