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libg3d Reference Manual | |
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#include <g3d/face.h> #define G3D_FLAG_MAT_TWOSIDE #define G3D_FLAG_FAC_NORMALS #define G3D_FLAG_FAC_TEXMAP G3DFace; gboolean g3d_face_get_normal (G3DFace *face, G3DObject *object, G3DFloat *nx, G3DFloat *ny, G3DFloat *nz); void g3d_face_free (G3DFace *face);
#define G3D_FLAG_MAT_TWOSIDE (1L << 0)
Faces using this material should be rendered two-sided as the direction is unknown.
#define G3D_FLAG_FAC_TEXMAP (1L << 1)
The face has a texture map and texture coordinates.
typedef struct {
guint32 vertex_count;
guint32 *vertex_indices;
G3DMaterial *material;
guint32 flags;
G3DVector *normals;
G3DImage *tex_image;
guint32 tex_vertex_count;
G3DVector *tex_vertex_data;
} G3DFace;
An object representing a surface.
guint32 |
number of vertices |
guint32 * |
indices of vertices in G3DObject |
G3DMaterial * |
material to use for surface |
guint32 |
flags |
G3DVector * |
optional normal array (one vector - 3 G3DVector values - for each vertex) |
G3DImage * |
optional texture image |
guint32 |
number of texture vertices, should be 0 or match vertex_count |
G3DVector * |
array of texture vertices |
gboolean g3d_face_get_normal (G3DFace *face, G3DObject *object, G3DFloat *nx, G3DFloat *ny, G3DFloat *nz);
calculates the normal of a face.
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face to calculate normal of |
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object containing vertices of face |
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x component of resulting normal |
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y component of resulting normal |
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z component of resulting normal |
Returns : |
TRUE on success, FALSE else |
void g3d_face_free (G3DFace *face);
Frees all memory allocated for this face.
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the face to free |