Sphere and Cone Composite Realtime Shadows in OpenGL
Abstract: Adding shadows to 3D objects, in computer graphics, is very important for increasing realism of scene. OpenGL does not support shadowing methods directly. There are several methods for implementation of the shadows, but they are struggling with problems such as high demands for rendering scenes. On the other hand, methods, that do not require a lot of resources for implementation and rendering, do not give realistic shadows. This paper represents one method for efficient realtime shadowing of a couple of objects, and emphasis is on their common characteristics. Since shadowing method for one primitive could be used with little improvement to make shadowing method for other object, this method is called composite method.
engleski
2013
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Keywords: shadows, OpenGL, circle, triangle, sphere, cone, point light source