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Quad is an arbitrary colored and textured four-vertex 2D polygon. It is fundamental HGE graphic primitive. To describe a quad hgeQuad structure is used:

struct hgeQuad
{
  hgeVertex  v[4];
  HTEXTURE   tex;
  int        blend;
};

Members

v

An array of four vertices, describing the quad.

tex

Quad's texture handle or 0.

blend

Quad's blending mode.

Requirements

Header: hge.h

See also

Gfx_RenderQuad, Vertex structure, Blending modes

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The hgeVertex structure is used to describe vertices of which HGE graphic primitives consist.

struct hgeVertex
{
  float  x, y;
  float  z;
  DWORD  col;
  float  tx, ty;
};

Members

x

Screen X-coordinate.

y

Screen Y-coordinate.

z

Vertex Z-order ranging from 0.0 to 1.0.
If Z-buffer isn't used, the value is ignored.

col

Vertex color and opacity.

tx

Texture X-coordinate in range 0.0 to 1.0.

ty

Texture Y-coordinate in range 0.0 to 1.0.

Remarks

If you specify values outside the 0.0-1.0 range for texture coordinates, the texture data will be repeated on every integer junction. For example, it is an easy way to implement "rotozoom" effect.

Requirements

Header: hge.h

See also

Triple structure, Quad structure, Hardware color format

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