Bullet Solver Polygon Error

Hi there,

I’m following some old tutorials for a community projection mapping project, and I’m running into an error

image

I’m trying to simply create a container the shape of the shape we are mapping onto.

It is a triangle, and I am trying to create shapes which fall into the triangle using a midi controller. My strategy was to create a tapered cone and making it transparent. Since my attempts to create a polygon in this shape failed:

any help with this error?
Bullet saver issue.toe (6.9 KB)

Mouse-middle on your SOPs, you’re using meshes and primitive spheres. They all need to be polygons. Naive solution is to run it all through a default Convert SOP right before feeding into the Actor COMP.

Thank you good sir :slight_smile:

Convert worked instantly. Side question: Is bullet solver a really outdated way to build these sorts of physical systems? I’ve never used it until now, but all the tutorials on it are 4-8 years old.

afaik the Bullet Solver is still relevant. It’s pretty mature tech – we first started using it around 2009 for the movie “2012” when I was working at Digital Domain. Back then it felt pretty cobbled together!