3D Graphics Programming with QuickDraw 3D 1.5.4
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CSG IDs
A drawing engine may support CSG IDs that determine what number a drawing engine assigns to triangles submitted for drawing. You specify an engine's CSG ID by assigning a value to its kQATag_CSGTag state variable. The default value of this variable for a drawing engine that supports CSG is kQACSGTag_None . You can use the following constants to specify a CSG ID.
#define kQACSGTag_None 0xffffffffUL
#define kQACSGTag_0 0
#define kQACSGTag_1 1
#define kQACSGTag_2 2
#define kQACSGTag_3 3
#define kQACSGTag_4 4
Constant descriptions
- kQACSGTag_None
- Do not assign CSG IDs to submitted triangles.
- kQACSGTag_0
- Submitted triangles have the CSG ID 0.
- kQACSGTag_1
- Submitted triangles have the CSG ID 1.
- kQACSGTag_2
- Submitted triangles have the CSG ID 2.
- kQACSGTag_3
- Submitted triangles have the CSG ID 3.
- kQACSGTag_4
- Submitted triangles have the CSG ID 4.
© 1997 Apple Computer, Inc.
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