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shader_type canvas_item;
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render_mode blend_disabled;
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void fragment() {
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vec4 layer = texture(TEXTURE, UV);
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vec4 back = texture(SCREEN_TEXTURE, SCREEN_UV);
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vec2 alpha = min(layer.ba+back.ba, vec2(1.0));
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COLOR = vec4(mix(back.rg, layer.rg, layer.ba/alpha), alpha);
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} |