Version History

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RRe36 edited this page Apr 21, 2020 · 4 revisions

labPBR v1.3:
- f0 is now stored linearly
- previously linear f0 was stored by taking the square-root of it and decoded by squaring it
labPBR v1.2:
- changed the way material ao is stored in the normalmap
- previously the material ao was encoded using this method:
  - the normalmap was brough into the range of -1 to 1 and was normalized afterwards
  - the material ao, which is stored in sqrt() in a range of 17 to 255 get's multiplied into this
  - afterwards the normalmap is brought back into the range of 0 to 1
  - the ao has been decoded like this inside the shaderpack after bringing the normalmap into the range of -1 to 1:
    - normals = normalize(normalTexture.rgb);
    - ao = length(normalTexture.rgb);
labPBR v1.1:
- added specification for hardcoded metals
- reorganized emission, sss and porosity in order to distribute the precision available based on importance and usage
labPBR v1.0:
- initial specification