wtf?

Batch is producing masks and texture (modified RenderMesh()).

Normals are not used when drawing triangle edges.

VTK reading must change the order of triangle vertices when importing them

Finished tweaking of OpenGL vizual mode (depth buffer on, backfaces culling)

Calculation of the 3rd coordinate seems to work well -- at least for a sphere.

GetClosestPointOnQuadricSurface() is the one.

Conflicts:
	cmath3d/TriangleMesh.cpp
	cmath3d/TriangleMesh.h