CS 431/636Advanced Rendering TechniquesDr. David BreenMatheson 308Thursday 6PM → 8:50PMPresentation 75/23/06Questions from Last Time? Hall Shading Model Shadows Reflections RefractionsSlide Creditsn Jonathan Cohen - Johns HopkinsUniversityn Shayan Sarkar - Carnegie MellonUniversityn Leonard McMillan, Jovan Popovic, FredoDurand - MITn Steve Marschner - Cornell Universityn David Luebke - University of Virginian Pat Hanrahan - Stanford University2D Texture MappingThe Quest for Visual RealismPhoto-texturesThe concept isvery simple! !" ## ! " ! " !!## # # $$!! ##% $& % $& !" '( '( ## " " ) ) *( !*( ! !" ((+ ,,(!- ,!+ ,,(!- ,!03/14/2002 15-462 Graphics I 7Texture Coordinate sampleTexture Coordinate sample !" 0-Lecture 15 Slide 25 6.837 Fall 2002Adding Texture Mapping to IlluminationTexture mapping can be used to alter some or all of the constants in theillumination equation. We can simply use the texture as the final color for the pixel,or we can just use it as diffuse color, or we can use the texture to alter the normal,or... the possibilities are endless!Phong's Illumination ModelConstant Diffuse Color Diffuse Texture ColorTexture used as Label Texture used as Diffuse Color !" ""# !# ! ! ! 4 , &4 , &
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