@MikeB

Notice in Page 50/58's "Logluv Buffer" box = 2x1280x720: RGBA8

On hardware that supports FP and MSAA that HDR box would either be FP10 or FP16 or FP32(DX10) not RGBA8.

Typical frame buffer formats
RGBA8 = 8 bits for Red, 8 bits for Green, 8 bits for Blue, 8 bits for alpha = 32 bits per pixel
FP10 = 10 bits for RGB components, and 2 bits for alpha = 32 bits per pixel
FP16 = 16 bits for each component = 64 bits per pixel (no support for hardware alpha blending on Xenos)
NAO32 = LogLUV conversion, 32 bits per pixel (no hardware alpha blending)

Guess which one was use for Uncharted's frame buffer format for HDR.

HAWK PC can enable HDR + AA on Mobility Radeon X700 (5 pipelined vertex shaders, 8 pipelined pixel shader 2.0b). Console’s optimisations can also benefit the PC.

Last edited by Hammer on 28-Mar-2009 at 11:18 PM.
Last edited by Hammer on 28-Mar-2009 at 11:17 PM.
Last edited by Hammer on 28-Mar-2009 at 11:10 PM.
Last edited by Hammer on 28-Mar-2009 at 11:06 PM.

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