I use 3Ds Max 2018. I am making a scene in the water. I want to make underwater caustics like the one on YouTube link below. I can not find the tutorial anywhere, There is no Arnold-related data. Can you help me?
Solved! Go to Solution.
Solved by aaronfross. Go to Solution.
Arnold does not support refractive caustics AT ALL. The tutorial linked here demonstrates a fake lighting effect using a gobo filter. This is upsetting to me, because the user asked for help regarding a specific feature which Arnold does not support. Instead of the truth, which is that this is Arnold's greatest limitation, the user got misdirected to a tutorial that shows a non-physical, not realistic, fake effect.
Probably not helpful for an underwater scene, but I stumbled over this tutorial for fake caustics:
https://docs.arnoldrenderer.com/display/A5ARNTUT/Fake+Caustic+Effect
They asked for an underwater caustic scene. It still works despite being a fake effect.
Refractive Caustics using an Emissive Shader