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SoLiTuDe
03-11-2006, 07:56 AM
Hey peeps, me and a buddy of mine have been trying to figure this out for about two hours.

I've been working on a very simple scene where I pretty much only have a background layer, and a particle operator. I've found that putting particles on their own layer is a total pain in the ass for a few reasons: 1. No realtime feedback with the footage underneath. and 2. crappy alpha. These my fault!? Seriously if there's a way around this i wanna know... but here's my issue... with a separate layer for my particles I can mask fine (but particles look nasty), and have the background layer show through where i want. The problem comes when I use particles as an operator directly on the footage and add a mask to that. I can get it to eventually work to where it masks where I want fine in the viewport, but when I actually go to render (or if i were to add the whole thing as a composite) the part where the particles were being masked show up as black. I understand the whole heirarchal thing with how the mask is the last thing before output, so it assumes it applies to the whole thing (even though i specify background layer and such, and looks fine if i'm in the draw mask layer) but is there a way to add a mask to the particles without having them on there own layer... OR is there a way to make the particles on their own layer look good, and also be able to edit them while i view the rest of the composite?

Anywho, if i haven't eplained it enough, let me know so I can post some screenshots
Thanks for the help!

--Solitude--:)

Fantastic Plastic Machine
03-11-2006, 08:11 AM
Well, I don't quite understand the problem, but I would make sure that you're creating a particle layer as opposed to putting a particle op on a footage layer. To do this go

Object> New Layer and choose "Particles" for type. Make sure the "Transparent" box at the bottom is on, as well.

I just tried this on top of some random footage and it looks pretty decent. You can mask particles just like anything else, when they are on their own layer.

SoLiTuDe
03-11-2006, 07:27 PM
i understand that, but my problem is that when I create the particles on their own layer the alpha of the particles looks kinda nasty -- has a black outline around most of the particles/looks like is has a bad matte or something... However, when i add them as an op to the footage, the particles look great. I'll try and post a screen later... gotta go to work now tho =) Also... when I add them as an op, i can see exactly where they'll be and work with them directly, whereas when I have them on their own layer and want to work with them, I can't see the footage beneath... though what i've been doing is adding them as an op, then moving that to a layer after i get it set up.

Halford
03-12-2006, 12:03 PM
I had a similar issue on a old scene, no matter what kind of Transfer mode I used it did not look right.

what I have done was to insert the leyer of particel, do them as I wished then i rendered just the particel hiding all the rest. deleted the leyer once rendered and imported the footage, that got me rid of bad lines.
I hope it helps.

Hal.

SoLiTuDe
03-12-2006, 05:46 PM
i'll give that a shot -- thanks... totally retarted though, that it doesn't just work how it should :D I'm sure the autodesk guys could probably do it right the first time hehe Maybe i'll post it up on their forums too

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03-12-2006, 05:46 PM
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