Map Generation by Diamond Square with Shading and Raycasted Shadows.

• 3DWorld

  54 1,063 9.9 C++

  3D Procedural Game Engine Using OpenGL

I remember it being called "wave surfing", where you start at the current pixel and draw a line to the light source, checking the elevation vs. the altitude value of the line (Y or Z) at every step. I have the code in my mesh_shadow_gen class here: https://github.com/fegennari/3DWorld/blob/master/src/visibility.cpp

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