Explanation of how to create a texture mapped box by reading a BMP image file and displaying with OpenGL. Then how to create that same texture mapped the box in Blender to export into FBX format. The model is then imported and displayed multiple different game development environments, such as Unity, MonoGame, Godot, and Unreal Engine.
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https://www.youtube.com/watch?v=Lx1u6Vu3aBQ