I need to use a sprite that masks another sprite that is then used to mask a 3rd sprite( by using the combination of the 2 masks)
Here is a picture of what Im trying to do:
I understand that this is not possible using sprite masks, because it would need to use a combination of both “visible inside mask” and “visible outside mask”, which is not a valid option on sprite renderers.
So it seems I need a shader to accomplish this?
How would I go about creating a shader that makes this possible?
Here are the requirements:
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the shader needs to be able to receive the inputs of both mask 1 and mask 2(which are opaque color with transparent pixels on borders) and the sprite subject to be masked
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the transform.position of mask 1 and mask 2 and the sprite must be considered for the masks to work correctly
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the alpha=1 pixels of the masks must render as transparent even though they are a solid color( like the sprite mask component)
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there will be multiple instances of this character, so there must be a way for the masks to apply only locally to the object they are attached to. ( this is achieved with the sprite mask component by creating a parent with a sorting group component, essentially to avoid masks from different characters to interfere with eachother )
I’m currently using the sprites/default material, so maybe I should start from there?
Should I use shader graph? Is there a tutorial to something that fits the situation that you could point me to?
Any advice would be greatly appreciated. Thanks in advance!