I have 3D models which are typical hollow hulls. If such a model also had a 3D volumetric/voxel texture map then given a point
P inside such a model, I'd like to be able to find its
uvw coordinates within the 3D texture.
Is this possible by simply setting 3D texcoords on my existing mesh or does it have to be broken up into polyhedra? Is there a way to map a 3D texture onto a mesh without doing this?