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amy suh avatar image
amy suh asked ·

Under the water scene

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?

https://youtu.be/MeNKAnyX374

caustics
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Aaron Ross avatar image
Aaron Ross answered ·

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

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Lee Griggs avatar image
Lee Griggs answered ·
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Aaron Ross avatar image
Aaron Ross answered ·

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.

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They asked for an underwater caustic scene. It still works despite being a fake effect.

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Lee Griggs avatar image
Lee Griggs answered ·

Here is one.

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