multithreading & rendering

I think I got some form of multithreading working now.

The renderer has been moved onto its own dedicated thread, separating rendering from the main engine thread :)

Changes

Rendering Thread

• Moved rendering execution to a separate thread

(alot had to be refactored for this to work lol)

Thread Safety

• i tried

  (imgui was a pain)

Rendering Optimizations

Added frustum culling to the renderer.

big optimizeD?

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actual rendering (i.e gpu calls) is now seperated from the main thread :D

…it looks like its working for now