вт, 7 нояб. 2023 г., 18:32 Andrew Randrianasulu <[email protected]>:
вт, 7 нояб. 2023 г., 18:13 Andrew Randrianasulu <[email protected]>:
https://blender.stackexchange.com/questions/46825/render-with-a-wider-dynami...
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....
https://blog.frame.io/2017/09/27/introduction-to-video-scopes/
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 .....
second technique about dealing with too shadowy video: https://larryjordan.com/articles/premiere-pro-two-options-to-control-sdr-vid... ===== *A CREATIVE USE OF BLEND MODES* This tip was suggested by *FoodShipNine*. If all you want to do is control black levels, but let highlights float – which would apply to most web videos – here’s an option. - Using *File > New > Black Video*, create a new video clip. This contains a single color – black – with a video level of 0 IRE. - Place it above all clips in the timeline, similar in concept to an adjustment layer. - Select the black video clip then, in *Effect Controls*, set *Opacity > Blend Mode* to *Lighten*. This sets all pixel grayscale values in all clips below the black video clip to whichever is lighter, the black video clip or the video itself. ====== so, if we does not have this mode we probably should :)
Still not sure where, may be in fader? (where fade can't be more than 100%) . May be its time to ask Lion (Adam).