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Independent RGB channel from the alpha issue
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I see… ae should be rendering the alpha of the glow in the alpha of the composite.
Actualy i want the exact opposite.
What you see is an aexple of what i want in photoshop. In after effect, my glow is included in the alpha channel, but i actually only want my key in the alpha channel
Frédérik-André Savard
VFX Artist – https://www.fasavard.comWhen you are not practicing, remember, someone somewhere is practicing, and when you meet him he will win – Ed Macauley
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ok… since i can’t think of a way to set ae to render that way, we’re back to my original suggestions…
either find a program/utility that will combine a separate key and fill into a single file with out modifying the fill, or try and trick ae into rendering something as close as you can to what you want.
i’d try setting the glow to a very low opacity, then render rgb+alpha with the straight (unmatted) option.
this should give you the full glow in the rgb channels, but it will be slightly visible in the alpha. perhaps that will not be noticeable in the next stage, or perhaps you can correct the alpha levels in the next stage.
Kevin Camp
Senior Designer
KCPQ, KMYQ & KRCW -
okay i almos got a way, but i still need some help. I got a weird issue that come up,
I precomp my layer (without the glow), in that layer, i put a black solid at the end of it.
On that pre-comp, i put my glow as a layer style and apply the effect *set matte*.
I set my matte to my proper matte and then render my comp as a straith unmatted.
When i poen my frame in photoshop, my alpha cut at my caracter, and my glow is in my rgb pass. It’s quite great, but now, my black bg dosen’t follow everywhere. I only get black box around my caracter and the rest of the frame is white. Wich is a big issue cause the withe in additive mode screw everything up ! Do you have any cue on how to leave that bg entirely black ?
Frédérik-André Savard
VFX Artist – https://www.fasavard.comWhen you are not practicing, remember, someone somewhere is practicing, and when you meet him he will win – Ed Macauley
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I was just about to suggest pre-comping and Set Matte.
Make sure the background colors of your comps are set to black.
Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog – What I’m thinking when my workstation’s thinking
Creative Cow Forum Host: Live & Stage Events -
chek both and still he only render some block of black (just the part of the screen that my caracter touch), My environnement is also set to black
Frédérik-André Savard
VFX Artist – https://www.fasavard.comWhen you are not practicing, remember, someone somewhere is practicing, and when you meet him he will win – Ed Macauley
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you checked the color in composition>background color and it was black?
what you are describing sounds like you have a black solid layer, but the composition>background color is white (and by the sample you provided earlier, it looked that way too).
Kevin Camp
Senior Designer
KCPQ, KMYQ & KRCW -
It is black yes, that why i think it is sooo weird !
I got my black solid as my gb, and my compositing is also black
Frédérik-André Savard
VFX Artist – https://www.fasavard.comWhen you are not practicing, remember, someone somewhere is practicing, and when you meet him he will win – Ed Macauley
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have you restarted ae (or rebooted) and rendered again since you saw this? sometimes data seems to get stuck in ae’s cache and it doesn’t clear it properly — i’m doubtful about this, but i want to make sure we’re not beating our heads over a software malfunction.
Kevin Camp
Senior Designer
KCPQ, KMYQ & KRCW -
I already try on 3 different computer. After effect just seem to render the background on the part that my caracter touch it. If i put a red solid behin, tha black bg will render around it, but not in the rest of the comp.
Frédérik-André Savard
VFX Artist – https://www.fasavard.comWhen you are not practicing, remember, someone somewhere is practicing, and when you meet him he will win – Ed Macauley
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Any chance you can reduce the project (down to just the affect comp and precomps, and a single frame of footage), collect it, zip up the AEP and footage file, and post it?
Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog – What I’m thinking when my workstation’s thinking
Creative Cow Forum Host: Live & Stage Events
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