@Hammer

"In this technique, color is stored in the LogLuv format usinga standard R8G8B8A8 surface. Two components are used to store X and Y at 8-bit precision, and the other two are used to store the log of luminance at 16-bit precision. Having 16 bits for luminance allows for a wide dynamic range to be stored in this format"

"we devised a scheme to use RSX pixel shading units to convert an RGB color in a CIE Luv color that only requires a common RGBA8 frame buffer (4 bytes per pixel, half the space of a FP16 pixel) to be fully stored"