This marvelous Compute Particle System does not work, I leave it to the experts

General TouchDesigner Discussion
1

Derivative – 23 Nov 19

Compute Particle System v2.0

Hi there, I’ve made a new example how to build a particle system using a compute shader in TouchDesigner. This one is based on instancing and uses a heightmap for the particle to collide with. I tried to explain everything as much as possible using…

compute particle system v2.0 or 2.1 in asset section gives an error
Compute Shader Compile Results:
ERROR: /ComputeParticles/Particles/glslParticleSystem_compute:90: ‘texel offset’ : argument must be compile-time constant
ERROR: 1 compilation errors. No code generated

I wish I could fix it, but I too rubbish at GLSL, I did try.

UPDATE
Ok code makes no errors now, but still nothing to see, does not render anything

2

Hi there,

I’ve update the system to make it work with the version 2022.24200. Some of the functions in glsl are deprecated, so changed them to the still valid ones.

Cheers,
Tim

ComputeParticles-2.2.tox (29.6 KB)

3

ace thank you

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