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image matte prolem


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Hi all,

I'm rendering volume and objs in different takes that using mantra,then I compose them in nuke and I found their alphas are not matched,I don't know what's wrong with them(maybe I should change the pixel filter?),please take some advices to me,thanks.

post-7003-1323060366.jpg

post-7003-132306040224.jpg

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Yes, try pixel filter type and size and check if everything is un/premultiplied correctly.

Hi Macha,thanks for replying,I tried "catmull-Rom 2 2" and the alphas matched very well.

e....I found another problem that when I used catmull type ,the image looked too hard...Is there a way to match the alpha and the render result looks naturally?

Edited by acti
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