I have a render output that gives me my desired output but I want to remove the alpha channel.
I want either, the pixels that have an alpha value less than 1 to be completely transparent or completely solid.
In this picture you can see that a vertical column of blue has transparency, I want to remove this or it be solid. How can I achieve this in the compositor? Remove the pixels with alpha


1 Answer 1


After a while playing around I found a fix that seems a bit hacky but does a good enough job for me.

First I split the image into RGBA, then using the alpha channel I made any pixel with an alpha above 0.8 set to 1 and recombined the image. I then used any pixel that had an alpha value below 0.8 used as a mask to cut themselves out of the image.

Here's the node setup: Sharp Alpha Fix


You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .