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Stylize>Glow that goes into transparency

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Clayton LightStylize>Glow that goes into transparency
by on May 7, 2011 at 4:20:43 am

Is there a way to use Stylize>Glow so that it works when you render Straight with Alpha?
Thanks.


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Kevin CampRe: Stylize>Glow that goes into transparency
by on May 9, 2011 at 2:36:38 pm

it should render straight with alpha just fine.

what's the issue you are seeing...? no transparency, doesn't key correctly, doesn't look correct, etc... there may be another issue that's causing the problem.

Kevin Camp
Senior Designer
KCPQ, KMYQ & KRCW


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Clayton LightRe: Stylize>Glow that goes into transparency
by on May 9, 2011 at 4:19:42 pm

Maybe it's the A-B colors.



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Kevin CampRe: Stylize>Glow that goes into transparency
by on May 9, 2011 at 4:33:09 pm

possibly... it depends on the coors and what you're seeing...

if on of the colors was black, then it would be rendering black in the rgb channels, and that would make it look like it was premultiplied rather than straight.

Kevin Camp
Senior Designer
KCPQ, KMYQ & KRCW


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Clayton LightRe: Stylize>Glow that goes into transparency
by on May 9, 2011 at 4:37:05 pm

That's it. Maybe I should make the B color the same as the A? I wish we could simply select transparency.



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Kevin CampRe: Stylize>Glow that goes into transparency
by on May 9, 2011 at 4:50:57 pm

if you wanted the glow to be all one color, the yes, set them both the same... it will have the same effect as making it transparent (it is actually transparent, but as it fades from opaque to transparent, it also fades from color a to b).

as dave mentions, the glow blending mode (the 'glow operation') can make the preview render misleading... with add, screen or lighten you may not see the black when you have a layer on in the background, but if you render without that layer, it will have the black. if you set the glow operation to 'normal' you'll get a better idea of how it will render with alpha.

Kevin Camp
Senior Designer
KCPQ, KMYQ & KRCW


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Dave LaRondeRe: Stylize>Glow that goes into transparency
by on May 9, 2011 at 4:39:28 pm

The look of the Glow may be different if you're looking at the results of an AE render in a different application, especially if it's supposed to glow over transparency. It may not look as bright as you wanted. The blend mode you use in the Glow effect won't materialize in an alpha channel.

You'll see a glow, but you won't see a glow PLUS its Add blend mode, for instance. Could that be what you're noticing?

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


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Clayton LightRe: Stylize>Glow that goes into transparency
by on May 9, 2011 at 4:44:50 pm

If I click on the transparency icon to hide the background, I see the glow going all the way to an edge instead of fading.



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Dave LaRondeRe: Stylize>Glow that goes into transparency
by on May 9, 2011 at 4:51:55 pm

Try using the Grow Bounds effect at the top of the layer's effects stack.

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


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