I made a scene in Reality Composer Pro and used the „Light Blue Denim Fabric“ material. Saving the scene and exporting to USDZ resulted in that material using this line:
asset inputs:file = @0/LightBlueDenimFabric_basecolor.png@ (
colorSpace = "Input - Texture - sRGB - sRGB"
)
Question 1: Was this colorSpace wrongfully exported from a different tool ?
The updated Apple page https://developer.apple.com/documentation/realitykit/validating-usd-files mentions these new known colorSpace(s): “srgb_texture”, “lin_srgb”, “srgb_displayp3”, or “lin_displayp3”.
To be honest, this confused me even more. My understanding is that the prefix "lin_" means linear (aka no gamma) and the established "srgb_" prefix means gamma corrected. But the word srgb could also describe the encoding (sRGB vs DisplayP3)
