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Sphere Tracer v1.1

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Simple raytracing of a colored sphere with transparent atmosphere which has an other color. Many Raytracer decide if the ray hits the sphere or not. Expensive antialiasing calculation is done afterwards. With this algorithm the sphere intersection and the atmosphere transparence are calculated in one step. This sketch is only showing the basic effect. Sphere coloring and reflection ray calculation has to be added for better results (see PlanetMaker). Please press <blanc> or mouse button to create a random sphere.
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