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aesthetic: improve bloom

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FMS-Cat
2021-03-14 03:58:31 +09:00
parent 1302450409
commit e0a08c3a93
1 changed files with 21 additions and 9 deletions
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30
src/shaders/bloom-blur.frag
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@@ -2,6 +2,14 @@
precision highp float;
const float OFFSET1 = 1.411764705882353;
const float OFFSET2 = 3.2941176470588234;
const float OFFSET3 = 5.176470588235294;
const float CONTRIBUTION0 = 0.1964825501511404;
const float CONTRIBUTION1 = 0.2969069646728344;
const float CONTRIBUTION2 = 0.09447039785044732;
const float CONTRIBUTION3 = 0.010381362401148057;
in vec2 vUv;
out vec4 fragColor;
@@ -21,15 +29,19 @@ void main() {
vec2 bv = halfTexel * ( isVert ? vec2( 0.0, 1.0 ) : vec2( 1.0, 0.0 ) );
vec4 sum = vec4( 0.0 );
sum += 0.2270270270 * texture( sampler0, vUv );
vec2 suv = clamp( vUv - bv * 1.3846153846, clampMin, clampMax );
sum += 0.3162162162 * texture( sampler0, suv );
suv = clamp( vUv + bv * 1.3846153846, clampMin, clampMax );
sum += 0.3162162162 * texture( sampler0, suv );
suv = clamp( vUv - bv * 3.2307692308, clampMin, clampMax );
sum += 0.0702702703 * texture( sampler0, suv );
suv = clamp( vUv + bv * 3.2307692308, clampMin, clampMax );
sum += 0.0702702703 * texture( sampler0, suv );
sum += CONTRIBUTION0 * texture( sampler0, vUv );
vec2 suv = clamp( vUv - bv * OFFSET1, clampMin, clampMax );
sum += CONTRIBUTION1 * texture( sampler0, suv );
suv = clamp( vUv + bv * OFFSET1, clampMin, clampMax );
sum += CONTRIBUTION1 * texture( sampler0, suv );
suv = clamp( vUv - bv * OFFSET2, clampMin, clampMax );
sum += CONTRIBUTION2 * texture( sampler0, suv );
suv = clamp( vUv + bv * OFFSET2, clampMin, clampMax );
sum += CONTRIBUTION2 * texture( sampler0, suv );
suv = clamp( vUv - bv * OFFSET3, clampMin, clampMax );
sum += CONTRIBUTION3 * texture( sampler0, suv );
suv = clamp( vUv + bv * OFFSET3, clampMin, clampMax );
sum += CONTRIBUTION3 * texture( sampler0, suv );
fragColor = vec4( sum.xyz, 1.0 );
}