gradualepiphany Posted November 7, 2003 Share Posted November 7, 2003 I've found an odd bug using the over function inside of the Composite cop - I've got Image A over Image B - A has an alpha channel, B's alpha is completely white. Even if I HSV or Bright A's alpha down to complete black, A will still be about 60% visable. Any ideas? thanks, |andrew| Quote Link to comment Share on other sites More sharing options...
tallkien Posted November 7, 2003 Share Posted November 7, 2003 Yup i'm getting it too (175,linux), you should post this at SESI, they'll want to know about it. Same with the Layer cop EDIT: Works fine if you leave all 4 plane scope buttons toggled "on" and type "A" explicitly in the field next to it instead of * . Still not sure if this a bug or intentional, don't remember it being like this before, Can someone confirm Quote Link to comment Share on other sites More sharing options...
anakin78z Posted November 7, 2003 Share Posted November 7, 2003 Try adding a premultiply cop after you bring the alpha down. I think most compositors function that way if the A image isn't properly premultiplied. Cheers, Jens Quote Link to comment Share on other sites More sharing options...
tallkien Posted November 7, 2003 Share Posted November 7, 2003 premultiply does it, thanks Quote Link to comment Share on other sites More sharing options...
gradualepiphany Posted November 7, 2003 Author Share Posted November 7, 2003 DOH! I should have known that. thanks much |andrew| Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.