How do I iterate with texture in ShaderMaterial, as in the following example

[Evgeni_Popov]

You need to ping-pong between two render target textures.

This thread should help you (there are a lot of other threads related to porting shadertoy shaders to Babylon):

ShaderToy using BufferA as input to Buffer A

I’m trying to port a Shader Toy example over to Babylon JS. I’ve had a lot of success generally, but the ones that I fail with are where you have Buffer chaining AND the Buffer is used as an input to iteself Example: Shader - Shadertoy BETA I attempted to make a simple copy of the above shader, but as you can see it doesn’t work. https://playground.babylonjs.com/#SSHURH#1 It is erroring with a reasonably self reference error. glDrawElements: Source and destination textures of the draw are t…