Gamma on the house shader warps the colour before the colour GOG; a physically based
material has no such term (its radiance is what the lighting model says it is), and
the Layers panel hides the slider for a physical layer rather than offer a knob that
does nothing. Kept as a method so isLuxarMaterial recognises the material and the
generic opacity/exposure paths keep working, and the value is kept on userData so
a round-trip through the panel's state does not lose what the author wrote.
Luxar
gamma: RECORDED, not applied.Gamma on the house shader warps the colour before the colour GOG; a physically based material has no such term (its radiance is what the lighting model says it is), and the Layers panel hides the slider for a physical layer rather than offer a knob that does nothing. Kept as a method so
isLuxarMaterialrecognises the material and the generic opacity/exposure paths keep working, and the value is kept onuserDataso a round-trip through the panel's state does not lose what the author wrote.