Function dot3

Source/astcenc_vecmathlib_common_4.h:324–329

* @brief Return the dot product for the bottom 3 lanes, returning vector. */

 * @brief Return the dot product for the bottom 3 lanes, returning vector.
 */
ASTCENC_SIMD_INLINE vfloat4 dot3(vfloat4 a, vfloat4 b)
{
	vfloat4 m = a * b;
	float d3 = hadd_rgb_s(m);
	return vfloat4(d3, d3, d3, 0.0f);
}

#endif