Glad to see you,<br><br>I was just thinking in a "filter stack" just like the modifier stack but for image :)<br><br>Concerning the UI: Do tou think it is acceptable to have a UI "button" (with 3 discs, 3sliders and maybe 3 color piker) that manimuplate a float[9] array or float[3][3] array (like the color button do with float[3] but with bigger UI)<br>
<br>So this UI button can be used int the pannels and fill directly the float array with ASC CDL compliant values (slope, offset, power)<br>That way also jus these 9 float need to be saved in the file.<br><br><br><div class="gmail_quote">
2008/12/11 Peter Schlaile <span dir="ltr"><<a href="mailto:peter@schlaile.de">peter@schlaile.de</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hi Campbell,<br>
<br>
> found them quite confusing. Even after tweaking them for 5min I don't<br>
> really understand what they do exactly.<br>
<br>
take a look at Colorista / Rebel-CC. Maybe they are not intuitive to you,<br>
but they are the standard three way color correction and should work that<br>
way.<br>
<br>
<a href="http://rebelsguide.com/forum/viewtopic.php?t=810" target="_blank">http://rebelsguide.com/forum/viewtopic.php?t=810</a><br>
<a href="http://prolost.blogspot.com/2006/10/rebel-cc.html" target="_blank">http://prolost.blogspot.com/2006/10/rebel-cc.html</a><br>
<a href="http://prolost.blogspot.com/2006/12/why-colorista.html" target="_blank">http://prolost.blogspot.com/2006/12/why-colorista.html</a><br>
<br>
> Id much prefer convert these values into either, gimp/photoshop color<br>
> 'Levels' or 'Curves'.<br>
> Curves are already used in other parts of blender so I'ts probably not<br>
> that hard to make this change,<br>
<br>
Curves are a nice addition. But Lift/Gamma/Gain should be available, too!<br>
<br>
Xavier: thanks for pointing out the problem with lift vs. offset. I was<br>
pretty sure, that I did it wrong, when I coded it, but didn't found a<br>
place, where it really was explained properly... (and blender release was<br>
the next week :) )<br>
<br>
So: go ahead, apply your fix! I can also write a patch, but not before<br>
xmas, that's for sure!<br>
<br>
The lookup table is only used for byte-values, so it should only affect<br>
speed not quality.<br>
<br>
> Peter, if your reading, Could these settings be converted to curves?<br>
> (even a close approximation would be ok I think)<br>
<br>
We should add an input prefilter pipeline for that. As Xavier pointed out,<br>
it may be the right time, to think about image processing functions that<br>
are reused across blender.<br>
<br>
Chears,<br>
Peter<br>
<br>
----<br>
Peter Schlaile<br>
<br>
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</blockquote></div><br>