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Mip-mapping
In computer graphics, mipmaps (also MIP maps) or pyramids are pre-calculated, optimization (computer science), optimized sequences of digital image, images, each of which is a progressively lower image resolution, resolution representation of the previous. The height and width of each image, or level, in the mipmap is a factor of two smaller than the previous level. Mipmaps do not have to be square. They are intended to increase rendering (computer graphics), rendering speed and reduce aliasing artifacts. A high-resolution mipmap image is used for high-density samples, such as for objects close to the camera; lower-resolution images are used as the object appears farther away. This is a more efficient way of downfiltering (magnification, minifying) a texture mapping, texture than sampling all texel (graphics), texels in the original texture that would contribute to a screen pixel; it is faster to take a constant number of samples from the appropriately downfiltered textures. Mipmap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lance Williams (graphics Researcher)
Lance J. Williams (September 25, 1949 – August 20, 2017) was a prominent graphics researcher who made major contributions to texture map prefiltering, shadow rendering algorithms, facial animation, and antialiasing techniques. Williams was one of the first people to recognize the potential of computer graphics to transform film and video making. Williams died at 67 years old on August 20th, 2017, after a battle with cancer. He is survived by his wife and two children. Education Williams was an Honors student majoring in English with a minor in Asian Studies at the University of Kansas and graduated with a B.A. in 1972. While a student at KU he competed in collegiate chess tournaments and is said to have had a rating of 1800. He was drawn to the University of Utah by a "Humanistic Computation" summer seminar held by Jef Raskin at KU. He joined the graduate Computer Science program at the University of Utah in 1973 and studied computer graphics and animation under Ivan Sutherlan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
