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Figure 19.22
A square face with two normals pointing along the positive Z axis and two normals pointing along the positive X axis. |
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Click on the image to view the VRML scene. |
#VRML V2.0 utf8 # The VRML 2.0 Sourcebook # Copyright (c) 1997 # Andrea L. Ames, David R. Nadeau, and John L. Moreland Shape { appearance Appearance { material Material { } } geometry IndexedFaceSet { coord Coordinate { point [ -1.0 -1.0 0.0, 1.0 -1.0 0.0, 1.0 1.0 0.0, -1.0 1.0 0.0, ] } coordIndex [ 0, 1, 2, 3 ] normalPerVertex TRUE normal Normal { vector [ 0.0 0.0 1.0, 1.0 0.0 0.0, 1.0 0.0 0.0, 0.0 0.0 1.0, ] } normalIndex [ 0, 1, 2, 3 ] } }