Renderer

Added basic OpenMP multi-threading. On my computer, this makes it ~3x faster in general. You will see more gains on scenes with fewer instances and Flat shading.

Renderer

The first (apparently) fully functional version of the renderer.

The executable "Renderer.exe" needs the "SDL2.dll" file to run - it must be within the same folder.
The "renderer.rar" file contains both files.

All you have to do is run the executable.