<font><font face="trebuchet ms,sans-serif">here are my 2 cents, I don't think the actual nodes are that bad though, I just think the UI makes them really hard to know/see what you are doing. And as a general purpose they are missing some falloff features. The output quickly ends up clamped which you always need to ramp/blur/level thing. </font></font><div>
<font><font face="trebuchet ms,sans-serif"><br></font></font><br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Difference Key:<br>
This takes the difference between a clean plate and another plate and<br>
determines at a per-pixel level if the two pixels are different within<br>
an RGB color space (with an adjustable tolerance and falloff). This<br>
node works really well if your clean plate and keying plate are lined up<br>
perfectly, such as when using a tripod to shoot the image or using a<br>
motion control camera.<br></blockquote><div><br></div><div>In most application and cases that does not work that great. if too much noise (raw file) changing lighting (projected shadow,...) I wouldn't put too much energy into it</div>
<div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Luminance Key:<br>
This uses the luminance value (in YUV color space) and a high/low slider<br>
to determine if a pixels should be keyed or not. This is useful for<br>
anytime the foreground is significantly brighter than the background.<br>
Such as keying special effects like fire/explosions/fireworks/etc for<br>
comping over other scenes later.<br></blockquote><div><br></div><div>IMO this is a case where the UI could be made much better, showing an histogram for instance to spot where the luma are.</div><div>and again some fall of wouldn't be too much :) </div>
<div><a href="http://www.pasteall.org/pic/30219">http://www.pasteall.org/pic/30219</a></div><div><br></div><div>HSL keyer on the same principle where you can select a range is good as well. <a href="http://aescripts.com/efx-keying-alpha-plugin-suite/">http://aescripts.com/efx-keying-alpha-plugin-suite/</a></div>
<div><br></div><div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
Distance Key:<br>
This keys pixels based on the 3 dimensional distance between colors in a<br>
3D RGB color space. This key works well when trying to single out a<br>
specific color in a background (not necessarily green). This key<br>
requires the patch I submitted a couple of weeks ago to fix the sliders<br>
from being dependent upon one another, they should be independent.<br></blockquote><div><br></div><div>Same for distance key, displaying a cube with 3D colors, maybe even being able to select them into the cube could be nice (ie Magic bullet looks Keying)</div>
<div><a href="https://vimeo.com/13310977">https://vimeo.com/13310977</a></div><div><br></div><div>or something more simple with 3 type of color selector. Main Color, color+ and color- to refine color selector</div><div><br>
</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br></blockquote></div>____________________<br>François Tarlier<br><a href="http://www.francois-tarlier.com">www.francois-tarlier.com</a><br>
<a href="http://www.linkedin.com/in/francoistarlier">www.linkedin.com/in/francoistarlier</a><br>
</div>