dolphin/Data/User/Shaders/bad_bloom.txt

uniform sampler2D samp9;

out vec4 ocol0;
in vec2 uv0;

uniform vec4 resolution;

void main()
{
  float4 c_center = texture(samp9, uv0);

  float4 bloom_sum = float4(0.0, 0.0, 0.0, 0.0);
  vec2 pos = uv0 + float2(0.3, 0.3) * resolution.zw;
  float2 radius1 = 1.3 * resolution.zw;
  bloom_sum += texture(samp9, pos + float2(-1.5, -1.5) * radius1);
  bloom_sum += texture(samp9, pos + float2(-2.5, 0)  * radius1);
  bloom_sum += texture(samp9, pos + float2(-1.5, 1.5) * radius1);
  bloom_sum += texture(samp9, pos + float2(0, 2.5) * radius1);
  bloom_sum += texture(samp9, pos + float2(1.5, 1.5) * radius1);
  bloom_sum += texture(samp9, pos + float2(2.5, 0) * radius1);
  bloom_sum += texture(samp9, pos + float2(1.5, -1.5) * radius1);
  bloom_sum += texture(samp9, pos + float2(0, -2.5) * radius1);

  float2 radius2 = 4.6 * resolution.zw;
  bloom_sum += texture(samp9, pos + float2(-1.5, -1.5) * radius2);
  bloom_sum += texture(samp9, pos + float2(-2.5, 0)  * radius2);
  bloom_sum += texture(samp9, pos + float2(-1.5, 1.5)  * radius2);
  bloom_sum += texture(samp9, pos + float2(0, 2.5)  * radius2);
  bloom_sum += texture(samp9, pos + float2(1.5, 1.5)  * radius2);
  bloom_sum += texture(samp9, pos + float2(2.5, 0)  * radius2);
  bloom_sum += texture(samp9, pos + float2(1.5, -1.5)  * radius2);
  bloom_sum += texture(samp9, pos + float2(0, -2.5)  * radius2);

  bloom_sum *= 0.07;
  bloom_sum -= float4(0.3, 0.3, 0.3, 0.3);
  bloom_sum = max(bloom_sum, float4(0,0,0,0));

  float2 vpos = (uv0 - float2(.5, .5)) * 2;
  float dist = (dot(vpos, vpos));
  dist = 1 - 0.4*dist;

  ocol0 = (c_center * 0.7 + bloom_sum) * dist;
}