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34 lines
1.0 KiB
Plaintext
34 lines
1.0 KiB
Plaintext
shader_type canvas_item;
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uniform float shift_strength : hint_range(0.0, 1.0);
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uniform float blur_strength : hint_range(0.0, 1.0);
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uniform float vignette_alpha : hint_range(0.0, 1.0);
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uniform float vignette_inner : hint_range(0.0, 1.0) = 0.5;
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uniform float vignette_outer : hint_range(0.0, 2.0) = 1.0;
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void fragment() {
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vec3 color = vec3(0);
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//模糊+色移
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float shift = 0.01 * shift_strength;
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float blur = 0.01 * blur_strength;
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vec2 direction = UV - vec2(0.5);
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float f = 0.1;
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color *= f;
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for(int i=1; i < 10; i++) {
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vec2 target_uv = UV - blur * direction * float(i);
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vec3 target_color = vec3(0);
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target_color.r = texture(TEXTURE, vec2(target_uv.x + shift, target_uv.y)).r;
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target_color.g = texture(TEXTURE, target_uv).g;
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target_color.b = texture(TEXTURE, vec2(target_uv.x - shift, target_uv.y)).b;
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color += target_color * f;
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}
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//暗角
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float x = abs(UV.r-.5)*2.0;
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float y = abs(UV.g-.5)*2.0;
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float q = 1.0-(1.0-sqrt(x*x+y*y)/vignette_outer)/(1.0-vignette_inner);
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q = clamp(q*vignette_alpha,0.0,1.1);
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color *= (1.0-q);
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COLOR.rgb = color;
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} |