+ set proper glViewport instead of hardcoded 1920 by 1080 (this might require some changing and instead do a glViewport of the screen/window size and then scaling the backbuffers)
~ set proper texture size for pingpong buffers (to work with the viewport fixes)
- removed FREE_IMAGE_FORMAT as it's already included in the FreeImage library
Signed-off-by: Alexis Maiquez <almamu@almamu.com>