![]() ![]() ![]() In computer graphics, a shader is a computer program that calculates the appropriate levels of light, darkness, and color during the rendering of a 3D scene-a process known as shading. This shader works by replacing all light areas of the image with white, and all dark areas with a brightly colored texture. The unaltered, unshaded image is on the left, and the same image has a shader applied on the right. Another use of shaders is for special effects, even on 2D images, (e.g., a photo from a webcam). Shaders are most commonly used to produce lit and shadowed areas in the rendering of 3D models. Phong shading is an improvement on Gouraud shading, and was one of the first computer shading models developed after the basic flat shader, greatly enhancing the appearance of curved surfaces in renders. ( Learn how and when to remove this template message)Īn example of two kinds of shaders: Flat shading on the left and Phong shading on the right. ( April 2014) ( Learn how and when to remove this template message) Please help to improve this article by introducing more precise citations. ![]() This article includes a list of general references, but it lacks sufficient corresponding inline citations. ![]()
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