ADOBE AFTER EFFECTS: Forum Expressions Tutorials Creative Cloud

Project Settings To Prevent Aliasing

COW Forums : Adobe After Effects

<< PREVIOUS   •   FAQ   •   VIEW ALL   •   PRINT   •   NEXT >>
Peter ChambersProject Settings To Prevent Aliasing
by on Oct 10, 2009 at 4:16:22 pm

Hi there,

I'm trying to create a feathered vignette for a project in AE and I'm having problems making it look crisp. The feathered edges aren't smooth, but rather aliasy. Are there specific project settings I should use when creating motion graphic projects for HD, SD, etc?

Thanks.


Return to posts index

Brian CharlesRe: Project Settings To Prevent Aliasing
by on Oct 10, 2009 at 7:22:54 pm

How are you creating the vignette? Masking, Ramps, Circle Effect??

Try changing the bit depth of the project. An 8 bit ramp or feather will dither, the shading in the gradation will look banded, in 32 bits it should be smooth.



Return to posts index

Peter ChambersRe: Project Settings To Prevent Aliasing
by on Oct 10, 2009 at 7:34:19 pm

Thanks Brian, I will try changing the bit depth and report back.


Return to posts index


Peter ChambersRe: Project Settings To Prevent Aliasing
by on Oct 11, 2009 at 3:07:29 am

I tried changing the bit depth to 32 but I'm still getting aliasing around the edges of the vignette where the black and blue solids are meeting.

NOTE: The aliasing is noticeable on the 4:3 standard definition television I am previewing with (through a Canopus box) and NOT on my computer monitor. Since I will be exported to an SD format on DVD, this will be an issue.

Any other suggestions?


Return to posts index

Brian CharlesRe: Project Settings To Prevent Aliasing
by on Oct 11, 2009 at 3:21:38 pm

Hmm.

What are you vignetting and what method are you using to vignette. Are you sure its the vignette causing the aliasing?





Return to posts index

Peter ChambersRe: Project Settings To Prevent Aliasing
by on Oct 12, 2009 at 2:42:50 am

All I'm doing is creating a blue solid underneath a black solid, then using a circular mask, cutting out a hole and feathering the edges of the hole to give that "soft-edge vignette look".


Return to posts index


Derek RucasRe: Project Settings To Prevent Aliasing
by on Oct 12, 2009 at 11:04:42 pm

What are your composition settings?

I find that using "NTSC DV" resulted in a rough transition. I changed the setting to "NTSC D1 Square Pixel" and I found that this resulted in a much smoother transition.

Try it, lemme know.


Return to posts index

Peter ChambersRe: Project Settings To Prevent Aliasing
by on Oct 13, 2009 at 1:44:53 am

Amazing...worked perfectly.

Thanks.


Return to posts index

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