private val POINT_DATA2 = floatArrayOf(-0.5f, -0.5f, -0.5f, 0.5f, 0.5f, 0.5f, 0.5f, -0.5f) private val POINT_DATA = floatArrayOf(2 * -0.5f, -0.5f * 2, 2 * -0.5f, 0.5f ...