Don't mean to necro this thread, but wanted to update with another subtle gotcha that may be of interest to those doing a similar upgrade.  I've been working on migrating to HDR rendering, and have thusly implemented such (float render target, color grading, tonemapping, etc.).  This all …

The cure to all ailments: Chapter 24. The Importance of Being Linear | NVIDIA Developer

SyncViews said:

Also to avoid precision loss, you want more than 8 bits for any linear colour value (consider if you mapped 8bit 0-255 to 0-255 some inputs give duplicate outputs and some outputs are impossible), since shaders often use floats this isn't an issue, unless you had some intermediate 8b…

ok cool, 

live long & prosper, the gamedev force is with u now ?

Hodgman said:

I'm one of the people who just shrugs and calls it a day with the sRGB primaries (after decoding the sRGB colors to linear)... But sounds like you want to convert from those linear RGB values to XYZ color space maybe, and then perform spectral rendering? Or something like this https:…