diff --git a/bloom-combine.glsl b/bloom-combine.glsl
index dda90fa..fde6986 100644
--- a/bloom-combine.glsl
+++ b/bloom-combine.glsl
@@ -13,7 +13,7 @@ void main( void )
 	float f = u_Parameters.x;
 	color = textureLod( u_MainInput , tmp , 0 ).rgb;
 	vec3 bloom = vec3( 0 );
-	for ( int i = 0 ; i < 5 ; i ++ ) {
+	for ( int i = 0 ; i < 6 ; i ++ ) {
 		bloom += f * textureLod( u_BlurInput , tmp , i ).rgb;
 		f = pow( f , u_Parameters.y + 1 );
 	}
diff --git a/bloom.cc b/bloom.cc
index 3860d67..2bd717b 100644
--- a/bloom.cc
+++ b/bloom.cc
@@ -21,14 +21,14 @@ T_BloomPass::T_BloomPass(
 		//
 		filterParams_{ 1.6 , 1.2 , .95 } ,
 		blurWeights_{ 0.324 , 0.232 , 0.0855 , 0.0205 } ,
-		blurSize_{ 2. } ,
-		combineStrength_( 0.7 ) ,
+		blurSize_{ 1.3 } ,
+		combineStrength_( 0.45 ) ,
 		combineAttenuation_( 0.3 )
 {
 	txBlur0_.wrap( E_TexWrap::CLAMP_EDGE ).samplingMode( E_TexSampling::LINEAR );
 	txBlur1_.wrap( E_TexWrap::CLAMP_EDGE ).samplingMode( E_TexSampling::LINEAR );
 
-	for ( int i = 0 ; i < 5 ; i ++ ) {
+	for ( auto i = 0u ; i < BloomLevels ; i ++ ) {
 		rtBlur0_.push_back( T_RendertargetSetup( ).add( txBlur0_ , i ).create( ) );
 		rtBlur1_.push_back( T_RendertargetSetup( ).add( txBlur1_ , i ).create( ) );
 	}
@@ -115,7 +115,7 @@ void T_BloomPass::render( )
 		blur.set( 1 , txBlur0_ );
 		blur.bind( );
 		glUniform2f( 2 , input_.width( ) , input_.height( ) );
-		glUniform2f( 3 , combineStrength_ , 1 - combineAttenuation_ );
+		glUniform2f( 3 , combineStrength_ , combineAttenuation_ );
 		glRectf( -1, -1 , 1 , 1 );
 		glBindTexture( GL_TEXTURE_2D , 0 );
 	}
diff --git a/bloom.hh b/bloom.hh
index 750a9ed..42ea3ff 100644
--- a/bloom.hh
+++ b/bloom.hh
@@ -11,7 +11,7 @@
 
 struct T_BloomPass
 {
-	static constexpr uint32_t BloomLevels = 5;
+	static constexpr uint32_t BloomLevels = 6;
 
 	T_BloomPass( ) = delete;
 	T_BloomPass( T_BloomPass const& ) = delete;