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VEX Caustics

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Cool, do you have any details on how you did it? 

M

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Yes, it's very simple. I have a point cloud I am refracting through a noise deformed grid, and then projecting those points on another plane, and finally coloring them by density of the projected point cloud.

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Cool! Is it cheaper "faking" caustics like this, ie plugging this point cloud into a geo light or something. Rather than just rendering with real caustics?

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It should be faster. I also wrote a real time implementation of caustics by approximating the refractive surface via individual patches, which works great but doesn't create as smooth caustics as this method.

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