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Question by SugoAu · Jan 30, 2018 at 03:57 PM · shader vertex game development

Need help with custom shader

I am new to Unity and would like to create a game with similar idea to 'VOI', here is a short game trailer: https://www.youtube.com/watch?v=5k_sZ_9jxTU basically, when shapes overlap each other, two black area will become white(transparent) black + black = white.

my question is do I need to create a custom shader to achieve this effect? or this is something to do with vertex? Thank you. alt text