How do I change the shape of my grid sop? And how to make two metaballs?

Beginners
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1

Hi there,

I’m trying to fill a rectangular wall with particles, which I hope to push around with my hands using kinect.

I’ve run into two issues: 1) I can’t change the grid sop into a rectangle to fill the 1280x720 res.

Also, I cannot seem to feed two metaballs into my particle system as forces.

Any help? Thanks yall! :slight_smile:GEO ATTRACTOR GRID.toe (7.6 KB)