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Ray Marching

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evilpaul
An example of Ray Marching in Processing. Ray Marching is a branch of ray tracing using discrete steps. Rather than intersecting rays against geometry, a point is moved through space and tested against a distance field at each step. The distance field gives us the distance to any surface in the scene from any point in space. When a point on the ray is close enough to a surface a pixel is rendered. Main controls: f/F - Change what you see r/R - How big the pixels are m/M - How lighting is calculated SPACE - Single step ENTER - Return to automatic update Read the UI for other controls
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