Is there a way to create my own 3D objects and use them in Polypop?
Thank you! this is really great.
Yes. You can create a 3D object in any 3D app (e.g. Blender) and import them to Polypop.
After creating your 3D object export it as an OBJ file.
In Polypop click on the plus button located at the bottom of the Source Library panel and choose "3D Model".
Select your OBJ and click Open.
Once you've done that, your 3D model will be added as a layer in your Source Library panel under the "3D models" category. You can now add it to your scene or use it as a source for a 3D object emitter.