Volumetric shaders and Subsurface Scattering not rendering on AMD GPU / OpenCL
Open, Needs TriagePublic

Description

System Information
iMac Pro 8core Vega 64
MacOS 10.13.6

Blender Version
Blender 2.97b
Blender 2.80 alpha2

Dear developers, according to
https://docs.blender.org/manual/en/dev/render/cycles/features.html# and https://wiki.blender.org/wiki/Def:Ref/Release_Notes/2.79#Cycles_Rendering
GPU rendering should already work with all features.
But at least on my system Subsurface Scattering and Volumetric effects do not show up in render output when rendering on GPU.
CPU rendering works.

On Blender 2.8 using hybrid rendering, the tiles do not match because the ones rendered by GPU do not show SSS.

Please see attached files:
System info
startup_cube_volume_absorption_gpu
startup_cube_volume_absorption_cpu
startup_cube_sss_gpu
startup_cube_sss_cpu
screenshot of hybrid rendering on Blender 2.8


Details

Type
Bug