Hello there.
Trying to do a post blur with vectors. Reelsmart doesn’t seem to be able to handle when an object moves in front of itself.
Please have a look at my 3 images below. The animation is of the Hippo chewing quickly.
1.Colour
2. Motion Vector pass from Renderman/Maya (Reelsmart should ignore blue channel, have also tried removing blue channel in colour correction just in case)
3. Blurred.
Notice the circled area. Reelsmart doesn’t seem to deal well with the overlapping area
And your point exactly? For one, your MV pass does contain undefined (empty) areas. Fill them up with teh neutral midpoint color (r128,G128). Second, it probably wouldn’t hurt if you used larger vector scales to increase contrast. Third, if you expect it to process overlapping areas where Z info figures in, then you are looking in the wrong place. As a strict 2D process that is simply impossible. Since that info is not contained in the images, the plug-in has no way of knowing where a pixel belongs. It’s all ambiguous.
Mylenium
Thanks for your response Mylenium,
My point, I guess, is that I wanted to know if it was me doing something wrong to produce the results I was getting.
Are you saying there is a way to use z information to blur the image more accurately?
(Not necessarily in reelsmart - I’m just looking for a sound way to do a post motion blur)
To your other points, a wider vector scale doesn’t seem to make much difference to the overlapping issue. The large undefined area is an alpha (in my original .tiff files) as per the manual.
Thanks again and kind regards.
AndyLP
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