how can I remove background color from a material?

Development Rendering
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110379-a.png

I wanna remove background color and making it transparent,

Thank you in advance !

1 Like
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Masked material with opacity mask is what you need need.

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110452-c.png
110452-c.png2396×1720 506 KB

Thank u very much!
I found a solution on github: GitHub - Tolc/Unreal-UMG-3DObjectInWidget: A simple Unreal Engine 4 project (precisely 4.7.4) showing how to render a 3D object/mesh in a UMG widget..

But this solution generates noticeable aliasing，how can I solve this problem? Thank u.

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Thanks for posting this, it helped me out knowing you can subtract images like this in order to create a mask that filters out where all the pixels are the same.

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This will work if you have black background then

change the material mode to masked and drag and drop the alpha channel to opacity mask