[digital] Modeling (Chris Chae's Library) by William Vaughan

Author:William Vaughan
Language: eng
Format: epub
Publisher: New Riders
Published: 2012-03-14T16:00:00+00:00

A tetrahedron is a type of pyramid consisting of four equilateral triangles with a flat polygon base and triangular faces connecting the base to a common point. My thought was that the four tips of this pyramid could be a good base for four of the eight panels.

Next, I needed to split the tetrahedron into several sections to allow for reshaping. Instead of measuring or guessing where to split the polygon faces, I subdivided the object into smaller faces that made it easier to work with. The resulting mesh gave each triangle face a poly-count of 64 three-point polygons, with a total object poly-count of 256.

To keep the object manageable, I assigned the tips of the tetrahedron to a new surface group and changed their color so that I could easily see the difference between the polygon islands (groups of polygons). Figure 7.23 shows these tips in blue.

[Figure 7.23] The tetrahedron divided into 256 polygons. Changing the surface of the tips makes it easier to define each section of the base mesh.

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