//
// Draw a Cube
//
void Cube(const Matrix &m, const Vector &v0, const Vector &v1, Color color, Color specular)
{
// Cube face definition
const U16 CUBE_FACES[] =
{
0, 4, 7, // left
0, 7, 3,
6, 5, 1, // right
2, 6, 1,
7, 6, 2, // front
3, 7, 2,
5, 4, 0, // back
1, 5, 0,
7, 4, 5, // top
7, 5, 6,
1, 0, 3, // bottom
1, 3, 2,
};
const U32 CUBE_NFACES = sizeof(CUBE_FACES) / sizeof(CUBE_FACES[0]);
const U32 CUBE_NVERTS = 8;
Vector verts[CUBE_NVERTS];
verts[0].Set(v1.x, v0.y, v0.z);
verts[1].Set(v0.x, v0.y, v0.z);
verts[2].Set(v0.x, v0.y, v1.z);
verts[3].Set(v1.x, v0.y, v1.z);
verts[4].Set(v1.x, v1.y, v0.z);
verts[5].Set(v0.x, v1.y, v0.z);
verts[6].Set(v0.x, v1.y, v1.z);
verts[7].Set(v1.x, v1.y, v1.z);
RenderFaces(&m, verts, CUBE_NVERTS, CUBE_FACES, CUBE_NFACES, color, specular, DP_DONOTLIGHT);
}
void Mesh::Display() const {
RenderFaces();
if (renderNormals) {
RenderNormals();
}
}
//
// Draw a pyramid
//
void Pyramid(const Matrix &m, const Vector verts[5], Color color, Color specular)
{
// Pyramid face definition
const U16 PYRAMID_FACES[] =
{
0, 1, 4,
1, 2, 4,
2, 3, 4,
3, 0, 4,
0, 3, 2,
0, 2, 1,
};
const U32 PYRAMID_NFACES = sizeof(PYRAMID_FACES) / sizeof(PYRAMID_FACES[0]);
const U32 PYRAMID_NVERTS = 5;
RenderFaces(&m, verts, PYRAMID_NVERTS, PYRAMID_FACES, PYRAMID_NFACES, color, specular, DP_DONOTLIGHT);
}
//
// Draw Tetrahedron
//
void Tetrahedron(const Matrix &m, Color color, Color specular)
{
// Tetrahedron offsets
const Vector offsets[4] =
{
Vector(0.0f, -1.0f, 0.0f),
Vector(0.0f, 0.5f, -0.866025403784f),
Vector(0.75f, 0.5f, 0.433012701892f),
Vector(-0.75f, 0.5f, 0.433012701892f)
};
// Tetrahedron verticies
Vector verts[4] =
{
offsets[0], offsets[1], offsets[2], offsets[3]
};
m.Rotate(verts[0]);
m.Rotate(verts[1]);
m.Rotate(verts[2]);
m.Rotate(verts[3]);
verts[0] += m.posit;
verts[1] += m.posit;
verts[2] += m.posit;
verts[3] += m.posit;
// Tetrahedron face definition
const U16 TETRAHEDRON_FACES[] =
{
0, 1, 3,
0, 3, 2,
0, 2, 1,
1, 2, 3
};
const U32 TETRAHEDRON_NFACES = sizeof (TETRAHEDRON_FACES) / sizeof (TETRAHEDRON_FACES[0]);
const U32 TETRAHEDRON_NVERTS = 4;
RenderFaces(NULL, verts, TETRAHEDRON_NVERTS, TETRAHEDRON_FACES, TETRAHEDRON_NFACES, color, specular, 0);
}
