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I don't understand masking

Posted: Sat, 15th Jan 2005, 7:39pm

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Cruiser

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Hi there again. I'm from Barcelona so I can understand written English, but spoken English sometimes is hard for me to understand. So I've downloaded all the tutorials, but I don't exactly understand the "masks tutorial" one. And I don't know how do the masks work. Are the used as alpha channels once the clip is exported? How can the masks be useful?
Thanks
Posted: Sat, 15th Jan 2005, 8:24pm

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Erfa

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If you put a mask on a part of the movie, AlamDV will not render the effects of that part. It´s very useful if your effects (for example a lightsaber) is passing behind an object/person/whatever.
Posted: Sat, 15th Jan 2005, 11:19pm

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Evman

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yes, cutting out a section of an effect using masking makes it seem like the effect is BEHIND something. For example, say you have a person walking through a field, and then you want an explosion to go off behind them, you'd put the explosion in the shot, but it'd be in front of the person. To fix this, you'd have to make a mask around your actor so that that part of the explosion would be missing, making it seem like it is behind the actor.
Posted: Sun, 16th Jan 2005, 1:18am

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Arktic

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Rating: +2

Here's an example, with pictures smile

In this shot, we're going to add an AlamDV lightsword. As you can see, the lightsaber blade goes BEHIND my actor's head :



But when I apply the Lightsword plugin, the blade appears to be INFRONT of the actor's face - which isn't how I want it to be:



To remedy this, I use the masking system to 'cover up' the areas of the video that I don't want the lightsaber to show. It appears as a white block while you're working on the video in AlamDV:



But when the video is rendered out, the sections where I placed the mask aren't visible - and so it gives the apperance that the lighsword goes behind my actor:



I hope this has helped you understand the masking feature of AlamDV smile!

Cheers,
Arktic.
Posted: Sun, 16th Jan 2005, 3:59pm

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Redhawksrymmer

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You could always read the manual or check out this tutorial by Tarn:
http://fxhome.com/alamdv2/tutorial_movies/Maskingproc.mov
Posted: Sun, 16th Jan 2005, 4:58pm

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Arktic

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As he says, Redhawksrymmer, he's not a native English speaker, and he finds it hard to understand the video tutorials.

Well, I have trouble understanding what Tarn's saying half the time, so I can sympathise with the guy wink

Hopefully there's been enough info posted here to help him out though smile

Cheers,
Arktic.
Posted: Mon, 17th Jan 2005, 1:12am

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Cyberiusx

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Good Good, that answered my question aswell razz
Posted: Mon, 17th Jan 2005, 8:26am

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Cruiser

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Yeah! Thanks, guys!! Now I know how to use masks! Now I can forget about "frame exports" and photoshop frame to frame work. Absolutely usefuls!!
Posted: Fri, 28th Jan 2005, 11:03pm

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Tommy Gundersen

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Arktic, you explained well;) So even I could understand how to mask! Thanks! +1...