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I'd love to see if the fake water surface texture could be replaced with a procedural deformation faking waves so that the path tracing could render caustics.
by ahefner 5y ago
I'd love to see if the fake water surface texture could be replaced with a procedural deformation faking waves so that the path tracing could render caustics.
- slavik81 5y agoUnfortunately, Blender not very good at caustics. In theory, any path tracer can do them, but in practice, the sampling needs to prioritize caustic-generating regions to be even remotely efficient. There might be add-ons that help, but vanilla Cycles will take orders of magnitude more samples to create a good image when there's caustics involved than when there's not. For that reason, it's still common to fake caustics in Blender using a texture or projection effect.