System Information
Operating system: Ubuntu Mate 18.04.4 LTS and Windows 10 (1909) x64
Graphics card: AMD Radeon RX 570 4GB
Blender Version
Broken: 2.82a, 2.83.2 LTS, 2.83.3 LTS, 2.90.0-b8601b64c7cb, 2.91.0-a51048a5d335, 2.90.0 Stable
Short description of error
Viewport GPU rendering on Cycles stuck at Path tracing sample 1/32 with high GPU usage when applying Volume Absorption properties in a Material over any Object
Newer Blender versions (2.90+) or versions previous to 2.83 throws an error "Split kernel error: failed to load kernel_path_init"
Exact steps for others to reproduce the error
- Load attached .blend file in 2.83.2 LTS, 2.90.0 or the latest beta
- If not set, set the rendering engine to Cycles and select GPU Compute
- Select the "Cube_Content" object
- Go to materials tab, and in Volume section, select "Volume Absorption"
- Change to Viewport rendering
Additional Notes
- This is only happening on Viewport rendering only, in the final render (when hitting F12) it works fine
- CPU Rendering in viewport works fine
- Viewport shading works fine
- Seems like every other Volume type is affected by this (Volume Scattering, Velvet BSDF, Emission, etc)
- Trying to apply any BSDF Volume, freezes the computer
- Some versions like 2.82a and latest alpha at this edition date makes high CPU and RAM usage freezing the computer.
- 2.90.0 causes high CPU usage only.
My system-info.txt in Linux (2.83.2 LTS):
My system-info.txt in Windows (2.83.3 LTS):


