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16 lines
375 B
Plaintext
16 lines
375 B
Plaintext
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shader_type canvas_item;
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uniform float brightness = 0.8;
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uniform float contrast = 1.5;
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uniform float saturation = 1.8;
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void fragment() {
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vec3 c = textureLod(SCREEN_TEXTURE, SCREEN_UV, 0.0).rgb;
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c.rgb = mix(vec3(0.0), c.rgb, brightness);
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c.rgb = mix(vec3(0.5), c.rgb, contrast);
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c.rgb = mix(vec3(dot(vec3(1.0), c.rgb) * 0.33333), c.rgb, saturation);
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COLOR.rgb = c;
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}
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