Zampano

Group Alpha

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Hey everyone.

Is there a possibility to use something like a "master alpha" for a group of sprites instead of them all having their individual alphas changed?

If that's not clear enough: I have a group of overlapping sprites that make up a bigger element. Now I want to fade this in/out as one single object using a tween. Instead, the sprites fade individually which results in them overallbeing less transparent in overlapping areas as well as initially covered sprites to shine through for the duration of the fade.

Obviously, I could alternatively just make it all one sprite, but due to multiple possible combinations, that would be quite costly.

Does anyone have an idea? 
Thanks! 

EDIT:
After some more research, I think rendertexture might be what I need, right?

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