Bitmap mask instead of power window

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Clixmaster

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  • Joined: Sat Jun 16, 2018 12:15 pm
  • Real Name: Mario Gößl

Bitmap mask instead of power window

PostSun Jan 20, 2019 4:55 pm

I want to bring a shadow of spinning rotor blades (only!) on to the chassis of a helicopter. The shadow were composed and rendered as a green screen clip. Fusion failed in countless attempts to render the entire scene with all components, so I decided to go via a green screen clip.
In color tab I have to mask the shadow to the helicopter. Becaue I have a bitmap of it I wonder how I could use it as a mask instead of a power window. Any idea? May be there's a simple solution I didn't found yet.
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Glenn Sakatch

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Re: Bitmap mask instead of power window

PostSun Jan 20, 2019 8:29 pm

Try importing your shadow as a matte clip, then in the node tree you can add an external matte.
(you may have to make a matte only version of your shadow first)
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Clixmaster

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  • Real Name: Mario Gößl

Re: Bitmap mask instead of power window

PostThu Jan 24, 2019 12:45 am

Thank you for your advice. I tried it out, but unfortunately there's a new problem. It was easy to compose the matte clip in Fusion and in preview all is fine but back in the timeline there's only a black screen, same in the rendered video. Next try I'll color the shadow, may be my green background disappears anywhere :?

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