Ah, got it, thanks. I'd assumed the default value (1.5) would take effect.
Follow up question: What's the physical meaning of kr and kt? I assume kr is a multiplier that acts on the specular-reflection component (which is determined by IORs)? And kt acts on the non-reflected remainder? Just want to make sure I understand the physical basis. (I can also check the source code if this isn't documented elsewhere .)
jon wrote: ↑Wed Aug 26, 2020 12:20 am
Follow up question: What's the physical meaning of kr and kt? I assume kr is a multiplier that acts on the specular-reflection component (which is determined by IORs)? And kt acts on the non-reflected remainder? Just want to make sure I understand the physical basis. (I can also check the source code if this isn't documented elsewhere .)
They are the specular reflection and transmission scale factors. You can set both to (1.0, 1.0, 1.0) for a perfect specular transmission/reflection without any kind of attenuation.
Support LuxCoreRender project with salts and bounties