[Cin] Trying to understand colour, try N!

Andrew Randrianasulu randrianasulu at gmail.com
Tue Nov 7 16:32:41 CET 2023

вт, 7 нояб. 2023 г., 18:13 Andrew Randrianasulu <randrianasulu at gmail.com>:

> 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.

and this article about Premiere tries to explain Scopes, and especially
floating point vs 8bit input - Premiere apparently can limit this setting
for scopes themselves....


so, HDR as used in ultra HD need some scope that goes to 10.000 (so,
logarithmic I guess ...)!

something we should write somewhere in TODO, I guess .....

> 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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