[Cin] Trying to understand colour, try N!

[Andrew Randrianasulu]

https://blender.stackexchange.com/questions/46825/render-with-a-wider-dynamic-range-in-cycles-to-produce-photorealistic-looking-im


well, this one says EXR can hold quite a big value per channel, way above
1.0f, obviously.  But for displaying (and encoding?) it must be compressed
back to device-specific 0 - 1.0 range.

Thing is, if I open exr example file in gimp 2.10 and re-export it - it
retain its above 100% values. It does not do this if I do this same
roundtrip via cingg. So yea, we seems to be clamping at output.


Still not sure where, may be in fader? (where fade can't be more than 100%)
. May be its time to ask Lion (Adam).
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