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Question by Damiano96 · Sep 29, 2020 at 07:29 PM · shaderunityeditorvisual studioshaderlabgames

Shader graph adds background to my texture

I am making a dissolve effect that works on images, the dissolve works fine but shader graph adds a gray background to my texture, even though it is a png. Any idea why?

Thankyou, the picture provided shows my problem.shaderGraphHelp

shadergraphhelp1.png (162.6 kB)
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avatar image ReyGrau · Jun 19, 2021 at 02:26 PM 0
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same problem

avatar image morima123 · Mar 06 at 11:49 PM 0
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I have a similar issue that unwanted backgrounds are added to Main Preview although sprite itself has no background. I imported sprites from Unity Asset store and try to play with it to learn shader graph but I cant find a way to remove auto added background. ( i attached the image to show the problem)

Unity 2020.3.26f

If anyone has a clue to solve it, that'd be very appreciated. alt text

screenshot-2022-03-07-at-83937.png (453.0 kB)
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Answer by BloodMarked · Jun 21, 2021 at 04:40 PM

you need to multiply the alpha with the alpha from the blend node in the bottom right, to have the effect be transparent.

so a split node, and use the A output to multiply with the blue line that goes into alpha of the master output

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