27 lines
521 B
GLSL
27 lines
521 B
GLSL
in vec2 v_coord;
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out vec4 f_color;
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uniform sampler2D u_texture0;
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uniform ivec2 u_screenSize;
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// Vignette
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vec4 apply_vignette(vec4 color)
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{
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vec2 position = (gl_FragCoord.xy / u_screenSize) - vec2(0.5);
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float dist = length(position);
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float radius = 2.0;
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float softness = 1.7;
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float vignette = smoothstep(radius, radius - softness, dist);
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color.rgb = color.rgb - (1.0 - vignette);
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return color;
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}
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void main(){
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f_color = texture(u_texture0, v_coord);
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f_color = apply_vignette(f_color);
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}
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