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QuickDraw 3D RAVE / QuickDraw 3D RAVE Reference

Constants

Vertex Modes

The vertexMode parameter for the QADrawVGouraud and QADrawVTexture functions specifies a vertex mode, which determines how the drawing engine interprets and draws an array of vertices.

typedef enum TQAVertexMode {
   kQAVertexMode_Point        = 0,
   kQAVertexMode_Line         = 1,
   kQAVertexMode_Polyline     = 2,
   kQAVertexMode_Tri          = 3,
   kQAVertexMode_Strip        = 4,
   kQAVertexMode_Fan          = 5
} TQAVertexMode;

Constant descriptions

kQAVertexMode_Point

Draw points. Each vertex in the array is drawn as a point. The engine draws nVertices points (where nVertices is the number of vertices in the vertex array).

kQAVertexMode_Line

Draw line segments. Each successive pair of vertices in the array determines a single line segment. The engine draws nVertices/2 line segments.

kQAVertexMode_Polyline

Draw connected line segments. Each vertex in the array and its predecessor determine a line segment. The engine draws nVertices-1 line segments.

kQAVertexMode_Tri

Draw triangles. Each successive triple of vertices in the array determines a single triangle. The engine draws nVertices/3 triangles.

kQAVertexMode_Strip

Draw a strip of triangles. The first three vertices in the array determine a triangle, and each successive vertex and its two predecessors determine a triangle that abuts the existing strip of triangles. The engine draws nVertices-2 triangles.

kQAVertexMode_Fan

Draw a fan. The first three vertices in the array determine a triangle; each successive vertex, its immediate predecessor, and the first vertex in the array determine a triangle that abuts the existing fan. The engine draws nVertices-2 triangles.