NKU
CSC 480 -
Illumination and Shading Practice
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Slide 1Slide 2Slide 3CSC 480 Computer GraphicsK. KirbyIllumination and Shading PracticeLighting [Illumination Model]: calculate intensities at verticesPhong model:Point sources (possibly at infinity)Ambient + emitted + diffuse + specularShading: calculate intensities at interior of facesGouraud model:Interpolate intensities from verticesPhong model:Interpolate normals from verticesGouraudA lighting / shading examplexyzvertices at (0, 1,1)light at L = (1,0,0)l = V - L lVnnI diffuse = n - l I specular = r - e Put eye at L.rer= 2(l-n)n - l What is illuminationat center of face?Do you see shortcomingsof Phong shading
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