Regression - OpenCL - some shaders don't render correctly #47668

New Issue

mathieu menuet · 2016-03-02T20:35:32+01:00

mathieu menuet commented

2016-03-02 20:35:32 +01:00

System Information
Win 7, R9 280X with Radeon Software 16.1.1

Blender Version
Broken: 2.77
Worked: 2.76b

Short description of error
Some shaders like water will not render correctly any more

Exact steps for others to reproduce the error
Open Pabelon Barcelona scene from the cycles benchmark suite with 2.76b and 2.77, switch to "GPU Benchmark" scene, hit F12, you get this:

2.76b, correct:

2.77b not correct:

Note that it's the exact same scene, the change in trees/flowers position is due to broken particle system (by the way, it would be good to remove any multithreading to make it more stable, because the new system is not coming in a foreseeable future?)

**System Information** Win 7, R9 280X with Radeon Software 16.1.1 **Blender Version** Broken: 2.77 Worked: 2.76b **Short description of error** Some shaders like water will not render correctly any more **Exact steps for others to reproduce the error** Open Pabelon Barcelona scene from the cycles benchmark suite with 2.76b and 2.77, switch to "GPU Benchmark" scene, hit F12, you get this: 2.76b, correct: ![2.76b.jpg](https://archive.blender.org/developer/F286687/2.76b.jpg) 2.77b not correct: ![2.77 PB.jpg](https://archive.blender.org/developer/F286686/2.77_PB.jpg) Note that it's the exact same scene, the change in trees/flowers position is due to broken particle system (by the way, it would be good to remove any multithreading to make it more stable, because the new system is not coming in a foreseeable future?)

mathieu menuet commented

2016-03-02 20:35:32 +01:00

Changed status to: 'Open'

mathieu menuet commented

2016-03-02 20:35:32 +01:00

Added subscriber: @bliblubli

blender-admin commented

2016-03-02 20:35:32 +01:00

#47710 was marked as duplicate of this issue

blender-admin commented

2016-03-02 20:35:32 +01:00

#47915 was marked as duplicate of this issue

Sergey Sharybin commented

2016-03-03 07:14:10 +01:00

Added subscriber: @Sergey

Sergey Sharybin commented

2016-03-07 15:36:55 +01:00

Added subscriber: @Asticles

mathieu menuet commented

2016-03-15 09:04:11 +01:00

Any news on this one? The OpenCL kernel already had nearly no new features in a year, if on top of it Cycles regresses for AMD users while NVidia users continue to have new features, it will be really disappointing.

Sergey Sharybin commented

2016-03-15 09:13:30 +01:00

As soon as there are news you'll know. And please don't start all this disappointment discussion here. It was discussed over ML already, and main constraint here is a flackey compiler from AMD.