construct3 eat many gpu if you add effect to a big tilemap or to layer can we blend effect only part of layer is on screen
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If you design a game that is very demanding on the GPU, it will use a lot of GPU resources. This is more a general game design issue than specific to Construct since it's true with any graphics technology. For more advice see Performance tips.
ok thanks i will use mask Sprite on gui layer to set effect only render on screen