Christopher Shivers

ok so im trying to learn the attribute and vex in houdini, I already know java so the coding part is not a problem for me. I setup a project in mind for myself. I wanted to create a noise pattern on a sphere but only want the noise pattern to show up when a particle from the popnet hits the sphere. I thought about changing the color on the particle and then getting the coordinates from that particle when the color changes to “red”, hopefully it would be the same coordinates on the sphere, then using the coordinates to add noise at that specific location. Now i'm not sure if this is possible. But so far i figured out how to change the color of the particle to red when it hits the sphere, and where the coordinates are at. But how do i go from there, can someone steer me in the right direction?

is there a way for particles/ grains to be pulled to a point? Like a black hole is sucking the grain. I want to create something that as it gets closer to the particles it pulls it in and delete the particles.

reelinspirations
You could start with this tutorial: https://www.cgcircuit.com/course/applied-houdini—dynamics-vi [cgcircuit.com]

These are really good from a guy who works for ILM and knows what he's doing.

yea this is exactly what I'm looking for, watching it now. Thanks