Description:
Algorithms used in producing computer graphics.
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ambient occlusion map
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I have a static ambient occlusion calculator that currently works per vertex. I want to be able to generate an ambient map as a preprocessing step. How would I do this? The mesh would already have texture coordinates defined if that helps.
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Signed distance of primitives
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Hi, does anybody know a site that has information on how to generate signed distance functions for the following primitives: - sphere - cylinder - cone - obtuse cone (is that the right english word?) - torus - cube Thanks in advance
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follow edge why parallel
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I have an RGB image that contains a colored (say blue) concave polygon, surrounded by a bunch of other colored (say red,green,purple) concave polygons. What I would like to do is trace it while it runs parallel to a specific polygon, for example, trace the edges of the blue polygon only while they're up against the edges of the red,... more »
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fast cliping of bounding volumes
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Hi I have camera frustum defined by 6 planes, and I have series of axis aligned bounding boxes defined by center and size in each (XYZ) axis. Now i have direction vector DX(dx, dy, dz). Now I need a way to determine if the volume created from the box and direction DX (volume extruded from box in direction (dx,dy,dz) to infinity -... more »
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Image compression...
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Hi, I'm Andrea, I have this little problem, I have to produce a screenshot with very higth frequency, and I have a bad CPU (533 Mhz MAX). When I make a ScreenShot, I obtain a bitmap image; I want to make a little compression (beacuse I want to send them on the Net). Actually I use a PCX compression,... more »
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classifying images by complexity
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I've got a massive collection of images that I'd like to use as wallpaper on my desktop. However, I'd like to filter out "busy" images; I prefer sand dunes to city skylines, for instance. Does anyone have any suggestions? I'm already generating histograms to find relatively monochromatic images, but that doesn't tell me if the... more »
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Call For Participation: WORLDCOMP'09 (The 2009 World Congress in Computer Science, Computer Engineering, and Applied Computing), USA, July 13-16, 2009
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Call For Participation WORLDCOMP'09 The 2009 World Congress in Computer Science, Computer Engineering, and Applied Computing Date and Location: July 13-16, 2009, Las Vegas, USA [link]... more »
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computer desktop and laptop
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provides the latest and updated information about computers.I will sure that you will obtain useful information.
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