Graphics Reference
In-Depth Information
Fig. 10.30 Geodesic spheres are made of equidistant vertices projected onto a sphere. It is
possible to make a distortion-free mapping solution with a small number of seams with this
type of sphere
Fig. 10.31 A smoothed cube will become a sphere if smoothed enough times, without losing the
original texture coordinates
layout from the cube (Fig. 10.31 ). The result is very good, relatively undistorted
UVs everywhere except where the original eight corners of the cube were located
prior to the smooth operation. At each of these corners is an intersection of three
faces, for a total of 24 faces. These can be reprojected and then the sphere smoothed
again for a very clean result.
Figure 10.32 shows the same sphered cube as in Fig. 10.31 , but with the corner
UVs reprojected and the cube smoothed again. This does create more seams, but
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