* Skinning is done in a way that works when there's more than one bone
influencing a vertex.
* PMDs now store vertexes in world-space instead of bind-space. (The
loader converts the old-version PMDs so they still work.)
* Moved SkinPoint, SkinNormal into CModelDef so it could use them when
loading the old PMDs.
* Made the FastNormals approach non-optional, so the inverse-transpose
bone matrices could be removed. Changed the explanation of why it's a
valid approach.
* Quaternion: Made GetInverse assume that the quaternions have unit
length (which they do when they're representing 3D rotations).
* lib: Added support for DDS files that aren't a multiple of 4x4 (most
useful for 1x1, 2x2, etc that are still powers of two).
* Actor Viewer: Added white terrain texture to the minimal test mod, so
shadows are visible. Changed default so walk/run animations don't move
the unit along the ground.
* Removed some redundant repetition in doc comments.
* Removed some unnecessary #includes.
This was SVN commit r4696.
Ykkrosh
173c56140c