Looking at code from the redbook (‘cos’ I’m new) I wish to fully understand just how glMap2f works. How would I use it to make flat (level) set of squares (like a chess board). I said “like a Chess board”, I’m not using it as a chess board!
Can someone explain how the point set (ctrlPoints[][][]) works? TIA!
float ctrlPoints[4][4][3] = {
{{0.0, 0.0, 0.0},
{0.0, 0.0, 0.0},
{0.0, 0.0, 0.0},
{0.0, 0.0, 0.0}},
{{0.0, 0.0, 0.0},
{0.0, 0.0, 0.0},
{0.0, 0.0, 0.0},
{0.0, 0.0, 0.0}},
{{0.0, 0.0, 0.0},
{0.0, 0.0, 0.0},
{0.0, 0.0, 0.0},
{0.0, 0.0, 0.0}},
{{0.0, 0.0, 0.0},
{0.0, 0.0, 0.0},
{0.0, 0.0, 0.0},
{0.0, 0.0, 0.0}}
};
glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4, &ctrlPoints[0][0][0]);
glEnable(GL_MAP2_VERTEX_3);