Golang Q.SetAa Examples

Example #1

File: camera.go Project: skyview059/vu

// XZ_XY perspective to ortho view transform.
// Can help transform a 3D map to a 2D overlay.
func XZ_XY(at *lin.T, scr *lin.Q, vm *lin.M4) *lin.M4 {
	rot := scr.SetAa(1, 0, 0, -lin.Rad(90))
	l := at.Loc
	return vm.SetQ(rot).ScaleMS(1, 1, 0).TranslateTM(-l.X, -l.Y, -l.Z)
}