Runtime expression refuses to work

[jhulse8HYT4]

I want the particles shown here to change color as their position changes in the scene. I've tried like 50 different scripts and it does nothing.

[mspeer]

Hi!

It's "Shape1" not "Shape.1"

You may want this at starting point?:

vector $pos = nParticleShape1.position;
nParticleShape1.rgbPP = $pos;

 or as you did:

vector $pos = nParticleShape1.position;
nParticleShape1.rgbPP = <<0,$pos.y,0>>;

[jhulse8HYT4]

That definitely helps. Further question though, I'd like to make the color here a gradient (so red to gray if possible).

 

[mspeer]

Hi!

nParticleShape1.rgbPP = <<0,$pos.y,0>>;

This is already a gradient (0,0,0) black to (0,1,0) green.

Sorry, i can't do the work for you.