ADOBE AFTER EFFECTS: Forum Expressions Tutorials Creative Cloud

How to change resolution

COW Forums : Adobe After Effects

<< PREVIOUS   •   FAQ   •   VIEW ALL   •   PRINT   •   NEXT >>
Petr BergerHow to change resolution
by on Apr 1, 2011 at 9:39:15 pm

I have some graphics in AE (from my friend) and its 720x576. I need to render it in HD. I know hot to change composition settings, but when I try to render it I still see 720x576 in render settings.


Return to posts index

Joey ForemanRe: How to change resolution
by on Apr 1, 2011 at 9:44:30 pm

That sounds a bit odd. In any case I recommend the Scale Composition script. It's located in File > Scripts.

Joey Foreman
Editor/Compositor/VFX Artist


Return to posts index

Dave LaRondeRe: How to change resolution
by on Apr 1, 2011 at 9:56:09 pm

...and don't be disappointed when your 720x576 video doesn't look as good as real high definition.

To Make the HD file, you simply will be scaling up the video you have. You will just make the pixels bigger in the video you have. You will not create any new pixels.

If you need to increase the resolution in the video you have, you need to get a third-party plugin like Instant HD from Red Giant software. I can help a little, but it won't work miracles.

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


Return to posts index


Joey ForemanRe: How to change resolution
by on Apr 1, 2011 at 10:03:41 pm

Dave's right, if your comp contains any SD video or bitmapped graphics from Photoshop or whatnot. If it's all graphics created in AE, the layers will scale uniformly without a loss in quality.

Joey Foreman
Editor/Compositor/VFX Artist


Return to posts index

Petr BergerRe: How to change resolution
by on Apr 1, 2011 at 10:43:55 pm

Yes, its PSD files (but result looks ok). The second problem is, when I render it in HD (HDTV 720) i'll miss alpha channell.


Return to posts index

Joey ForemanRe: How to change resolution
by on Apr 1, 2011 at 11:35:18 pm

You need to render with a codec that supports an alpha channel (Animation, ProRes 4444,.tiff sequence, etc.)
And in the Output Module set Channels to RGB + Alpha, Depth - Millions of Colors +.
Were you specifically asked for an alpha channel? Usually that's only necessary for something like lower thirds, as better compositing results will be achieved in AE than in an NLE.

Joey Foreman
Editor/Compositor/VFX Artist


Return to posts index


Petr BergerRe: How to change resolution
by on Apr 2, 2011 at 12:06:30 am

Its lower thirds, so yes.


Return to posts index

Joey ForemanRe: How to change resolution
by on Apr 2, 2011 at 1:07:23 am

In that case, you'll most likely want to set the Alpha Channel type to Straight rather than Premultiplied.

Joey Foreman
Editor/Compositor/VFX Artist


Return to posts index

Petr BergerRe: How to change resolution
by on Apr 3, 2011 at 10:08:18 pm

I set it (color) as RGB, million color and straight and there is a message "you should also output alpha channel to use straight color" - where? I cant see it anywhere.


Return to posts index


Joey ForemanRe: How to change resolution
by on Apr 3, 2011 at 10:10:41 pm

RGB + Alpha
Millions of Colors +
The 'plus' is important.

Joey Foreman
Editor/Compositor/VFX Artist


Return to posts index

Bogdan BratuRe: How to change resolution
by on Apr 4, 2011 at 1:45:21 pm

what is the visible difference between Rgb and Rgb + Alpha?


Return to posts index

Dave LaRondeRe: How to change resolution
by on Apr 4, 2011 at 2:48:31 pm

http://community.adobe.com/help/search.html?q=alpha%20channel&hl=en_US&lr=e...

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


Return to posts index

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
© 2017 CreativeCOW.net All Rights Reserved
[TOP]