Updated Esenthel Source:
-added new function Slerp
-optimized heightmap mesh generation to merge mesh parts in order to reduce draw calls at the cost of increased GPU usage
-stencil buffers are now disabled by default, allowing to use higher precision 32-bit depth buffer (drawbacks: Decal.terrain_only not supported, MSAA D.samples>1 is now slower)
-forward renderer is now disabled by default, reducing overhead
-reduced overhead for setting skeleton matrixes
-simplified and reduced memory usage for instanced rendering
-optimized sphere projection codes
-improved performance of object/camera/view matrix calculations

Fixes:
-fixed some potential issues with matrix angle calculations (happening only under certain conditions)

Name Changes:
-mesh draw functions that use Current Matrix, were renamed to include "CurMatrix" in their name
-ActiveCam -> ActiveCam()