Motion Blur messes up transparency of layer
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Hello,
I'm pretty new to Isadora, so I am just confused:
I have a useractor with a projector actor inside (for the same projection mapping in diffrent scenes) and a user input for the layer property.
In the scene I layer some audio reactive shapes and a bit of text over video. One shape and the text have both a motion blur actor to make their animation more interessting looking.
No the problem: When I was building it, everything looked as I wanted. But on renenter of the scene the motion blur actor seems to mess up the transparency (or alpha, idk how isadora is handling this) of the layers. Everything is non-transparent for at least a few seconds so the layers underneth it are not showing anymore... Why is that so? It feels very counter intuitiv. I am confused. Is there a way around that? Do I understand the layers-thing right? Help is very much appreciated. Thanks in advance, Max
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also something else that confuses me: When I use a different layer of my projector actor and change the izzy map, it seems that it will only change it for this layer? or at least not for the layer 0... sorry even more confusion going on here...
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@unmenge said:
Everything is non-transparent
In Isadora you can roll over the link (the cord connecting actors) between video connections to open a Thumbnail of the feed entering/leaving any of the actors. This thumbnail will show you the video type.. RGB or RGBA, where RGBA had alpha, and the background of transparent areas will appear as a black and white checkerboard.
This will help you track down where in your patch you are loosing your alpha channel. Not all actors respect the alpha channel, some will fill transparent areas with black (generally fine when using additive overlaying of layers).
If you supply a screen grab of your patch, or attach the file I could look into it further.
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@unmenge said:
When I use a different layer of my projector actor and change the izzy map, it seems that it will only change it for this layer? or at least not for the layer 0... sorry even more confusion going on here...
not sure exactly what you are doing here, I think I need to see what you are doing to underestand how you are using layers.
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@dusx Thank you very much for your reply
I thought it would work like this: the layer functionality decides the sequence in wich the video feeds are stacked opon each other and then the Izzymap will distort all of the layers acording to the mappping i made. Is that right?
I have the same ProjectorActors in a UserActor through out all of my scenes so that i can change the projection mapping from day to day. This UserActor has an UserInput to define the Layer, so it can be different for different source material.
Here are screenshots from the problem with the motion blur:
The Video before the motion blur is transparent and after the motion blur it's just black. The Input is a Text Draw, so I suppose it should have an alpha, right?
And here after the motion blur:
what am i missing?
Does a patch without source material help you? It's all quite messy, since I had to build it without real knowledge of Isadora and a tight deadline.
