Is After Effects CS5's ID Matte filter's "Use Coverage" broken?

[Juanxer]

Could someone please check if the ID Matte filter in After Effects CS5 is broken? I was testing some RPF footage, not getting antialiasing at all when checking the "Use Coverage" box in the ID Matte filter. Then I tried it in AE CS3 and it worked perfectly.

[Tomas Egger]

Ola my friend,

Could you upload a frame with ID Matte? I have CS3 and CS5. :)

Thanks

Tom

[Juanxer]

Here you are. This RPF has Object ID, Coverage and Color channels. Thank you for offering to test it.

While we are at it: is the RPF_Saver's Sub-Pixel Mask channel functional, and can it be taken advantage of in AE? I was wondering if Coverage is really the best way to antialias the Object ID-derived masks, as it alters their core solidity a bit, too (they stop being fully solid, becoming this bit textured).

BASE_0130.rpf.zip

[Tomas Egger]

Ola Juanxer,

For me, the ID Matte filter is behaving the same in CS3 and CS5, appears no Anti-Alias in both versions with “Use coverage” or not.

Thanks

Tom

[Juanxer]

Strange: I do get AA in CS3 with that RPF file. Here there is a close-up of an object's border with and without "Use Coverage".

(To add insult to injury, AE CS3 won't accept to import the RPF file sequence, even if it has no problem importing single RPF files. That has happened to me a few times. CS5 has no problem there, but it won't antialias, so it is unusable. Aaargh. I'll have to try importing via AE CS2 into a project (did AE CS2 have 3D Channel filters?) and importing such project into CS3)

[Juanxer]

(I've found a workaround to the importing issue: in Adobe Bridge I can redefine the sequence of RPFs as a "Pile", and pass it as such to After Effects, which treats it as a file sequence item)

[Tomas Egger]

Ola my friend,

Good idea...

Really weird this AA problem..

Thanks

Tom