RetroArch Pack

system/PPSSPP/shaders/bloom.fsh

@@ -0,0 +1,48 @@
+// Simple Bloom shader; created to use in PPSSPP.
+// Without excessive samples and complex nested loops
+// (to make it compatible with low-end GPUs and to ensure ps_2_0 compatibility).
+
+#ifdef GL_ES
+precision mediump float;
+precision mediump int;
+#endif
+
+uniform sampler2D sampler0;
+varying vec2 v_texcoord0;	
+
+float amount = 0.60; // suitable range = 0.00 - 1.00
+float power = 0.5; // suitable range = 0.0 - 1.0
+
+void main()
+{
+  vec3 color = texture2D(sampler0, v_texcoord0.xy).xyz;
+  vec4 sum = vec4(0);
+  vec3 bloom;
+  
+  for(int i= -3 ;i < 3; i++)
+  {
+    sum += texture2D(sampler0, v_texcoord0 + vec2(-1, i)*0.004) * amount;
+    sum += texture2D(sampler0, v_texcoord0 + vec2(0, i)*0.004) * amount;
+    sum += texture2D(sampler0, v_texcoord0 + vec2(1, i)*0.004) * amount;
+  }
+      
+  if (color.r < 0.3 && color.g < 0.3 && color.b < 0.3)
+  {
+    bloom = sum.xyz*sum.xyz*0.012 + color;
+  }
+  else
+  {
+    if (color.r < 0.5 && color.g < 0.5 && color.b < 0.5)
+      {
+         bloom = sum.xyz*sum.xyz*0.009 + color;
+      }
+    else
+      {
+        bloom = sum.xyz*sum.xyz*0.0075 + color;
+      }
+  }
+  
+  bloom = mix(color, bloom, power);
+  gl_FragColor.rgb = bloom;
+  gl_FragColor.a = 1.0;
+}