Vector Ergonomics

Additional helper methods on the Vector2, Vector3, and Vector4 objects. Haven't ported raymath.h yet.

Bugfix: Fewer crashes and better cleanup.

Fixed:

• DLL is now copied to a temp folder correctly. Last few bytes of the DLL were being written more than once.
• File is cleaned up correctly after shutdown.

Added:

• Helper methods on shaders to access the different maps.
• Missing constructor on Vec4/Quaternion.

First Alpha

Win64 only at time of writing. Unstable and unpolished.