blit
fun blit(left: Float, top: Float, right: Float, bottom: Float, textureID: Int, tLeft: Float, tTop: Float, tRight: Float, tBottom: Float)
The coordinates are not transformed (no view or model matrices).
left, top, right and bottom are in the range -1 to 1, where -1, -1 is the bottom left.
tLeft, tTop, tRight, tBottom are in the range 0 to 0, where 0,1 is the bottom left.