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Assume that a 3D polygon is tranformed by a transformation matrix T. Assume the normal vector...

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Basic Math

Assume that a 3D polygon is tranformed by a transformationmatrix T. Assume the normal vector of the polygon is n. Can we usethe formula Tn to compute the normal vector of the transformedpolygon? If not, drive the correct formula.

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When lighting is enabled in OpenGL the normal vectors are usedto determine how much light is received at the specified vertex orsurface This lighting processing is performed at eye coordinatespace therefore normal vectors in object coordinates are alsotransformed to eye coordinates with GLMODELVIEW matrixHowever normals vectors are transformed in different way asvertices do We cannot    See Answer
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