decent bloom system

android/assets/shaders/bright_filter.fsh

@@ -14,8 +14,8 @@ void main() {
 	vec4 color = texture(u_texture, vTexCoord);
 	float brightness = (color.r*0.2126) + (color.g*0.7152) + (color.b * 0.0722);
 	
-	if (brightness > 0.7) {
-		gl_FragColor = color;
+	if (brightness > 0.6) {
+		gl_FragColor = color *0.75;
 	} else {
 		gl_FragColor = vec4(0.0);
 	}

android/assets/shaders/combine.fsh

@@ -11,18 +11,17 @@ varying vec2 vTexCoord;
 
 uniform sampler2D u_texture;
 uniform sampler2D u_texture1;
-uniform float exposure;
 
 void main() {
-	vec3 origColor = texture2D(u_texture, vTexCoord).rgb;
-	vec3 blurredColor = texture2D(u_texture1, vTexCoord).rgb;
-	
-    const float gamma = 2.2;
-    origColor += blurredColor; // additive blending
-    // tone mapping
-    vec3 result = vec3(1.0) - exp(-origColor * exposure);
-    // also gamma correct while we're at it       
-    result = pow(result, vec3(1.0 / gamma));
-    gl_FragColor = vec4(result, 1.0);
+        vec4 origColor = texture2D(u_texture, vTexCoord);
+        vec4 blurredColor = texture2D(u_texture1, vTexCoord);
+
+        vec4 result;
+        result = origColor + blurredColor;
+        result.a = vColor.a;
+        result.rgb *= vColor.rgb;
+        gl_FragColor = result;
+
 
 }
+