Fixed kd-tree destroying function
Fixed function for calculating FPS
Using memcpy for copying array
Use only absolute (world) coordinates. Transform only camerf position and vector. It means that rebuild of kd-tree after each rotation of scene is not needed any more! :)
Refactoring
Ability to bind light sources coordinates to camera coordinates
Merge pull request #10 from lagodiuk/only_absolute_coordinates

Got rid of projective coordinates.
Comments about mt_render.c
Merge branch 'master' of github.com:EarlGray/raytracing-render