Hybrid skeletal animation

[voxelias]

We need a possibility to mix animations, for example run and shoot

[QuantumEntangledAndy]

Perhaps on a compute shader.

Load a two bones transform matricies and the vertex buffer and weights.

Apply both to the vertex buffer separately.

Combine the verts with weighted average on the result.

Write result to a buffer.

For multiple mixes we simply apply the compute multiple times with appropriate weights.

[voxelias]

Moving of animation calculations to compute shader in general is a quite interesting idea.