Volume absorption definition

[lighting_freak]

Hi all,

From measurements I know the exact transmission of some different coloured clear materials. Due to having this measurement with different thicknesses I'm able to calculate the absorption coefficient.

In old luxrender it was possible to transfer this absorption coefficient to the render engine with a text file.

Would it be possible to handle this in luxcore the same way?

BR

[Dade]

I assume, you can do the math: the transmittance is computed here https://github.com/LuxCoreRender/LuxCor ... ar.cpp#L66 according this math http://www.pbr-book.org/3ed-2018/Volume ... Absorption (the very last formula).