func (c *Camera) project(pt mgl32.Vec2) mgl32.Vec2 {
var (
screen = pt.Vec4(1, 1)
out mgl32.Vec4
)
out = c.Projection.Mul4x1(screen)
return out.Vec2()
}
func (c *Camera) unproject(pt mgl32.Vec2) mgl32.Vec2 {
var (
screen = pt.Vec4(1, 1)
out mgl32.Vec4
)
out = c.Inverse.Mul4x1(screen)
out = out.Mul(1.0 / out[3])
return out.Vec2()
}