masking shader

credits to scarm for finding it, thanks m8

Shader code
shader_type canvas_item;

void fragment(){
    COLOR = texture(SCREEN_TEXTURE, SCREEN_UV);
    COLOR.a = texture(TEXTURE, UV).a;
}
The shader code and all code snippets in this post are under MIT license and can be used freely. Images and videos, and assets depicted in those, do not fall under this license. For more info, see our License terms.

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