I have a scene where I need to be able to "interactively" cut a mesh. I have set up a bounding box, and the object I need to cut is set inside. When I move the vertices of the bounding box, the object is cut because of my implementation of a boolean modifier with the "union" property. Here is an example:
However, the sphere is just being flattened in this image. What I need is to be able to literally "cut" the sphere, so that it is hollow on the inside. Is this possible, and how can I do it?
Here is how I want it to look, but with the ability to be animated.
Any help/suggestion is welcomed!
Edit: I added a photo of how I want the image to look.