3-D Coordinate Systems and Geometry

Programming Microsoft?Direct3D?applications requires a working familiarity with 3-D geometric principles. This section introduces the most important geometric concepts for creating 3-D scenes. The following topics are covered.

• 3-D Coordinate Systems
• 3-D Primitives
• Face and Vertex Normal Vectors
• Triangle Rasterization Rules
• Rectangles
• Triangle Interpolants
• Vectors, Vertices, and Quaternions

These topics provide high-level descriptions of the basic concepts employed by a Direct3D application. For more information about these topics, see Further Information.