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Object mask question, logo with fire [ANSWER]

Posted: Sat, 10th Feb 2007, 3:55pm

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CaptainGhost

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In the tutorial for object masks...it shows the FX HOME logo coming in with the fire...

I cant seem to do this...

How would you accurately use the object mask to acheive this effect?
Posted: Sat, 10th Feb 2007, 4:58pm

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Axeman

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If you want the fire in the shape of the logo, apply an object mask to the fire, and specify the logo media as the shape of the mask.
Posted: Sat, 10th Feb 2007, 5:24pm

Post 3 of 7

CaptainGhost

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does the logo media have to have anything special to it?

For instance...

I made title credits in Windows MOvie Maker...and then I tried to put that scene over fire exploding so the letters would be exploding fire...but the letters just stay white..

how do I make credits with transparent lettering so the fire comes up?
Posted: Sun, 11th Feb 2007, 12:28am

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Wizard

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Not too long ago I wrote a relatively brief set of instructions which cover this very task, and may prove useful to you. That can be located here. If you continue to have complications after reading that post, feel free to post back here, and I, or another member, will be happy to try to answer any questions you have.

Let us know how it goes.
Wizard.
Posted: Sun, 11th Feb 2007, 1:47am

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CaptainGhost

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I still cant get it...what should I be creating my text media with? I tried doing a simple credits page with Windows Movie maker...all it did was place the text over the flame, but not like the flame was the text....arghhh
Posted: Sun, 11th Feb 2007, 3:50am

Post 6 of 7

Wizard

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Rating: +1

CaptainGhost wrote:

does the logo media have to have anything special to it?
Any media you wish to do this with must have proper alpha information. Although I mention this in the post I linked to, perhaps I should have said this in this topic as well. With out the appropriate alpha data, an object mask will not work.

Most image editors, such as Adobe Photoshop, will offer the ability to render with an alpha channel. The steps to do this depend on the image editor you are using, so at the moment, I can not tell you how to do this. I do not believe you will be able to achieve this with Windows Movie Maker, although I may be wrong about that.

Object masks will also work with green screen footage, once you have keyed it, as it will contain the appropriate information. If you do not have a program that offers alpha rendering, you could always put your text on a green back ground, then save it, import it into VisionLab, and then key it. This will allow you to then use an object mask, following the instructions provided in the post that I linked to.

If you have any more questions regarding object masks, feel free to post back here. In the mean time, FXhome offers alpha ready FXhome credit images that you can use to experiment with object masks. You can find those here.

Practice makes perfect.
Wizard.
Posted: Sat, 17th Feb 2007, 10:31pm

Post 7 of 7

Plainly

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What you can also do would be to write your sentence/logo in a specific colour, in Windows Movie Maker, so then you can Chroma Key the letters. Then, all you have to do is to put the fire behind the footage with the logo.

PS- Sometimes, if the letters are too small, though, it won't work very well... So write it big!