16 lines
315 B
Plaintext
16 lines
315 B
Plaintext
shader_type canvas_item;
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uniform sampler2D screen_uv : hint_screen_texture, filter_nearest;
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uniform bool grayscale = false;
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void fragment() {
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if(grayscale){
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vec4 screen = texture(screen_uv, SCREEN_UV);
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COLOR.rgb = vec3(screen.r * 0.299 + screen.g * 0.587 + screen.b * 0.114);
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}else{
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COLOR.a = 0.0;
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}
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}
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