Hi,
I’m kinda new to TD and I’ve been playing a lot with particlesGPU in a couple of days I’ve modified it to render 3d box particles from the points of a box but I’m trying to understand how to do 2 things:
1- 3d box particles are overlapping so I would like to know how to avoid that. Ideally, particles could touch but not pass through each other. I’m thinking that I might need to edit the Python script to detect “collisions” to avoid that.
2- I would like to instance the particles based on an image. Let’s say I have a 128x128 image and each pixel would become a 3D box particle that would assume the color of that pixel. I’ve managed to instance the particles from a box with one of the dimensions set to 0 (so it becomes a plane) with 128x128 divisions to simulate the image. I’ve managed to use an image as particleSourceColor but there is a randomization running inside particlesGPU that assigns randomly the color of each particle. I would like the color of the particle to be assigned mapping the particle position(x,y) to the pixel (x,y) color.
Any ideas on how to implement these modifications? 
