Mesh Animation - Ways to rotate part of a mesh?

Hi

I had a look through the code archives but I couldn't find anything to help me. I have a single mesh divided into 100 units, some of those units may be facing a diferent direction to others within that mesh. Are there any readily available functions or formulas to rotate part of a mesh around it's 'local' origin? All the units share the same 'local' origin.

Thanks for any help.

Cheers

GrumpyOldMan

Hi GrumpyOldMan,

As far as I know, there's no such a command. What you could do, is to move the vertex which belongs to the part of the mesh you want to rotate, in order to perform the needed rotation.

You may have a look at the command VertexCoords, which is there exactly for that purpose.

http://www.blitzbasic.com/b3ddocs/command.php?name=VertexCoords&ref=3d_cat

The way you have to move the vertex to perform a geometric rotation, involves a bit of math though; try out first with simple meshes, then apply the concept to the whole mesh.

Hope this helps,
Sergio.