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No Alpha When Exporting
I am using pIllusion 3.0.8.1. I am exporting as a Quicktime Movie, Animation codec, Medium quality, Millions+.
I don’t see the alpha channel in Motion, nor do I see it in Bug-TV’s ClassBug server playing out of a Blackmagic HD Pro video card. This is new territory for me, so I’m sure its a simple fix for something I am not doing right. -
15 Replies
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Did you check the “save alpha” option in the output options dialog? If so, then set the quality and colors sliders to the highest setting.
Alan.
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I don’t know if this applies, but I export from PI using the Lagarith codec – sometimes with Alpha sometimes not. I have found it to be lossless (it’s advertised as such) and it’s free! Find it at:
https://lags.leetcode.net/codec.html
– it has just been updated. Best of luck!In theory there’s no difference between theory and practice – but in practice there is.
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In the Output Options window, the “Save Alpha” checkbox is greyed out, as is the “Compression” and “Zoom” percentage. (It shows 100%, 1920×1080)
Thanks,
rod k.
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With Animation codec, set quality as high as possible, and number of colors as high as possible and it should be enabled.
Alan.
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This is what I have noticed:
I click on “Save Output” red button.
“Save Output as Type:” window opens, I select QuickTime Movie.
“Save Rendered Output (Movie)” window opens, I save with a name.
“Output Options–particle5.mov” window opens, I select “OK” as all choices are grey.
pIllusionRender opens “Compression Settings” window, I select “Animation” codec, millions of colors+, quality “Best”
“pIllusionRender window opens, select output:”QuickTime Movie”, movie options set to Animation, keyframe every 24 frames, millions of color+, Best
checked “Save Alpha”
select “Render” buttonI playback the result and it still has no alpha channel. What am I missing that is so simple?
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That seems like the right steps to me. Are you using the latest version of pIRender?
What motion blur settings are set in pIRender?
What stage size (output resolution) are you using?
Alan.
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piRender version is 3.0.3.1
motion blur is not enabled
stage size is 1920×1080 -
Ok, start a new project at that stage size.
From the “default” library add the “star trails 2” emitter and the “water jet” emitter.
Now try to render with alpha as you did before. Does it work?
Alan.
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I did as you asked, but still no alpha. Motion only shows a solid white full frame for the alpha channel that was confirmed also when I played it on the ClassBug. Sorry.
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There seems to be some quirk in how pIRender is being called and sometimes it doesn’t let you check the “save alpha” option.
So, run pIRender manually. It should still have the right project file and output settings, but check the “Save Alpha” option. You probably should uncheck the “auto load” option too — that might be the thing that’s causing problems.
It should render correctly in pIRender, and hopefully next time you render from pI3 everything will be fine.
Alan.
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