Volumetric calculations and topology

[wildsurfer]

Hi,

I have a few questions:

1) How can we calculate the volume and/or surface area of a mesh during runtime?


2) How can we enforce the topological rule on the mesh? (e.g. if a wall is partially destroy, the "leftover" wall still should be a solid mesh instead of disjointed polygons)


Thanx!

[Mithrandir]

There are no such functions in TV3D but you can do it manually.
You can iterate through all polygons and use GetTriangleInfo to get vertices and GetVertex to get their positions.

1) Having positions of vertices of each polygin makes it straight forward to calculate surface area and volume. I'm sure you can find some algorithms on that.

2)This can be a tricky thing to do but again there must be some articles about how to do this somewhere online. You can then add new faces and vertices using AddVertex and AddFace to close up the mesh.