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引用次数: 4

摘要

着色是计算机图像的重要组成部分,但是着色器是基于固定的模型,所有的表面都必须符合这个模型。随着计算机图像变得越来越复杂,表面具有更复杂的着色特征,因此需要一个不那么严格的着色模型。本文提出了一种灵活的树状结构遮阳模型,可以代表广泛的遮阳特征。该模型提供了一种简单的方法来指定复杂的阴影特征。它的效率也很高,因为它可以为每种类型的表面定制阴影计算。
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Shade trees
Shading is an important part of computer imagery, but shaders have been based on fixed models to which all surfaces must conform. As computer imagery becomes more sophisticated, surfaces have more complex shading characteristics and thus require a less rigid shading model. This paper presents a flexible tree-structured shading model that can represent a wide range of shading characteristics. The model provides an easy means for specifying complex shading characteristics. It is also efficient because it can tailor the shading calculations to each type of surface.
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BE VISION, a package of IBM 7090 FORTRAN programs to draw orthographic views of combinations of plane and quadric surfaces View interpolation for image synthesis Real-time display of computer generated half-tone perspective pictures Computer rendering of stochastic models Models of light reflection for computer synthesized pictures
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