mathematical writing, and add static constructors to create quaternions
from a rotation.

the unit tests.

it's a bit less confusing.

code for all matrices.

trying to realloc the array and insert a reference to a member of our own.

creation failures.

needs to know about Direct3D headers etc.

wrong offset computations.

the Scene code still breaks Direct3D rendering.

class, so that the calling code does not need to know what the backend is.

and Android changes.

issues that were introduced with the Direct3D changes.

retrieve the constant's register index in the description table. This also
allows us to use a single uniform handle for both the vertex and pixel
shaders in a PS3 Cg program.