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[[Image:Hg5ye6.jpg|right|thumb|400px|An image generated using a ray-tracing algorithm]]

[[Image:Hg5ye6.jpg|right|thumb|400px|An image generated using a sophisticated ray tracing algorithm.]]

'''Ray tracing''' is an algorithm that synthesizes an image from a geometric scene.  It works by shooting (tracing) rays from an observer position into the scene, checking for intersections with the scene's geometry. One of it's particular strengths is the ability to accurately display mathematically described surfaces, like spheres or other implicit surfaces.

'''Ray tracing''' is an algorithm that synthesizes an image from a geometric scene.  It works by shooting (tracing) rays from an observer position into the scene, checking for intersections with the scene's geometry. One of it's particular strengths is the ability to accurately display mathematically described surfaces, like spheres or other implicit surfaces.