+
20090501 - 32bpp HDR Blending Idea
+
+
The goal is to get 16-bit per channel HDR with only 32-bit per pixel and still have an additive blendable framebuffer.
+
+...
+
+If alpha is needed (for example doing particle blending),
+then a different color channel decimation will be required such as this one,
+
+GA RA GA RA
+BA GA BA GA
+GA RA GA RA
+BA GA BA GA
+
+This is now much closer to the Bayer Grid seen on common digital cameras.
+Remember to keep 2 greens per one blue and one red.
+The result here is 1/4 area chrominance.
+
+NOT FOR OLDER HARDWARE
+======================
+Unfortunately this trick requires a render target format (16-bit dual channel)
+ not available on a bunch of older hardware (like Geforce 7 series, PS3, etc).
+Will work on 360 however using an 16-bit integer format.
+
+