No More Textures - Real Time VFX
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The essential collection of 2D shape functions:

But "relatively cheap" is very … relative ALUs are cheaper than texture readings, that's right, but you usually need more than one shape :to wink: The advantage of procedural shapes is that they can be scaled well. Always sharp, no compression artifacts. And they're a lot easier to animate. However, filtering can be a problem for a large frequency / range.

Distance field based procedures also have interesting properties when you switch between them. Basically, you're mixing distorted UV rooms and then running the threshold function to finalize a shape. I tried here:


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