System Information
Operating system: Windows-10-10.0.19043-SP0 64 Bits
Graphics card: NVIDIA GeForce MX130/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 511.79
Blender Version
Broken: version: 3.2.0 Alpha, branch: master, commit date: 2022-03-14 00:08, hash: rBb959f603da45
Worked: None
Short description of error
The RGB Blackbody node is still outputting Linear BT.709 values despite the working space specified by OCIO config's scene_linear role is not Linear BT.709.
Exact steps for others to reproduce the error
- Open the config.ocio file with any text editor, change the scene_linear role to any other spaces like XYZ and save file (I know using XYZ space as working space for light transport is a bad idea, this is just for testing purpose to make the problem pop. Any space other than Linear BT.709 should be fine to reveal the problem, just not as obvious).
- Open Blender and open this .blend file:
Turn on Rendered view shading, and see how wrong it is:
- Hit render button, and when it's done rendering, go to compositor, check use nodes, ctrl shift left click for viewer node, add a convert colorspace node, and convert from Linear Linear BT.709 to XYZ CIE XYZ, see it now is normal:
This test shows that the RGB Blackbody node will only output values that assume Linear BT.709 being the working space.