houdini1987 Posted September 14, 2015 Share Posted September 14, 2015 Hi, I am facing a weird issue when i am trying to comp my z depth from file rendered from Houdini in Nuke. I am getting weird red edges even if its not in focus that blurs it. Also blur is so weird. I know for sure its not the problem of Nuke because z defocus node is working well with another exr I downloaded over internet. I don't know what I am missing. Any pointer will be very helpful. Thanks Quote Link to comment Share on other sites More sharing options...
Guest tar Posted September 14, 2015 Share Posted September 14, 2015 try 'minmax idcover' in the Pixel Filter Quote Link to comment Share on other sites More sharing options...
houdini1987 Posted September 15, 2015 Author Share Posted September 15, 2015 try 'minmax idcover' in the Pixel Filter Thanks Marty, It worked really well. Can I ask why min max idcover thing worked even its not present in drop down of pixel filter. Usually I use Gaussian 2x2 but that didn't even work? Quote Link to comment Share on other sites More sharing options...
Guest tar Posted September 15, 2015 Share Posted September 15, 2015 It's the bottom option - Object With Most Pixel Coverage (no filtering) Gaussian won't work as Z-depth is based on float values, and where you have smooth anti-aliased edges it is interrupted as a different depth. The very best thing to do is probably render with 'Sub-Pixel Output' checked - then do you defocus on it, then reformat it down in Nuke. Of course then a another cool method is use Deep output and Bokeh from http://peregrinelabs.com/bokeh/ Quote Link to comment Share on other sites More sharing options...
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