Updates to GpuSmokeSim2D
Added cleanup() method for deleting OpenGL resources.
Added ComputeRHS shaders
Added Stencil Tests
Simulation will only process fluid cells
WIP: ComputeRHS for GpuSmokeSim2D
Update to VolumeRenderer
Rending Front faces of bounding volume
Merge branch 'ComputeRHS'
Added shaders for GpuSmokeSim2D
Updated libRigid3D.a
Updates to VolumeRenderer
Stencil creation based on Bounding Volume Front Faces