For those wondering, a deeper dive into rasterization / raytracing and hybrid approachs.
In this second part of our deeper look at 3D game rendering, we'll be focusing what happens to the 3D world after all of the vertex processing...
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Path tracing vs ray tracing
Every few years there's an amazing new technology with the promise of making games ever more realistic. We've had shaders, tessellation, shadow mapping, ray tracing -- and...
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nVidia RTX is doing a form of limited path tracing to enhance lighting effects while still using traditional rasterization for everything else. Real RT needs to know a materials light properties which is normally not stored. Steel treats light differently then wood, ceramic, water, cloth or fur. You need to define each materials light refraction / reflection properties then assign a material type to a surface along with it's texture. Then RT can calculate how light interacts with that surface as it bounces the ray around.