<div dir="auto"><div><br><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">вт, 7 нояб. 2023 г., 18:13 Andrew Randrianasulu <<a href="mailto:randrianasulu@gmail.com">randrianasulu@gmail.com</a>>:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto"><a href="https://blender.stackexchange.com/questions/46825/render-with-a-wider-dynamic-range-in-cycles-to-produce-photorealistic-looking-im" target="_blank" rel="noreferrer">https://blender.stackexchange.com/questions/46825/render-with-a-wider-dynamic-range-in-cycles-to-produce-photorealistic-looking-im</a><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto">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.</div><div dir="auto"><br></div><div dir="auto">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.</div></div></blockquote></div></div><div dir="auto"><br></div><div dir="auto">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....</div><div dir="auto"><br></div><div dir="auto"><a href="https://blog.frame.io/2017/09/27/introduction-to-video-scopes/">https://blog.frame.io/2017/09/27/introduction-to-video-scopes/</a><br></div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto">so, HDR as used in ultra HD need some scope that goes to 10.000 (so, logarithmic I guess ...)!</div><div dir="auto"><br></div><div dir="auto">something we should write somewhere in TODO, I guess .....</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto"><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto">Still not sure where, may be in fader? (where fade can't be more than 100%) . May be its time to ask Lion (Adam).</div></div>
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