Source file extension changes (cc to cpp)

[joevenzon]

>however when i just change mat3 to mat3x3 i get this:

ERROR: 0:36: 'mat3x3' : no matching overloaded function found

I've never heard of mat3x3; mat3 is the glsl type for a 3x3 matrix, and doing mat3(somemat4var) should take the upper left 3x3 matrix. Of course, that's what I was doing, and your drivers didn't like that. I think your solution is fine, although you might have to append a .xyz swizzle to the end of the gl_TextureMatrix[1][X] bit.

The shadow samplers are defined the way they are simply because it makes the code easier to read/write. I'll change how I use them to be more explicit, and hopefully it'll fix your errors.