diff --git a/Engine/source/terrain/hlsl/terrFeatureHLSL.cpp b/Engine/source/terrain/hlsl/terrFeatureHLSL.cpp
index 94c7e4943..6292bd32a 100644
--- a/Engine/source/terrain/hlsl/terrFeatureHLSL.cpp
+++ b/Engine/source/terrain/hlsl/terrFeatureHLSL.cpp
@@ -545,8 +545,8 @@ void TerrainDetailMapFeatHLSL::processPix(   Vector<ShaderComponent*> &component
    Var *baseColor = (Var*)LangElement::find( "baseColor" );
    Var *outColor = (Var*)LangElement::find( "col" );
 
-   meta->addStatement( new GenOp( "      @ = lerp( @, @ + @, @ );\r\n",
-                                    outColor, outColor, baseColor, detailColor, detailBlend ) );
+   meta->addStatement( new GenOp( "      @ += @ * @;\r\n",
+                                    outColor, detailColor, detailBlend));
 
    meta->addStatement( new GenOp( "   }\r\n" ) );
 
@@ -742,7 +742,7 @@ void TerrainMacroMapFeatHLSL::processPix(   Vector<ShaderComponent*> &componentL
    }
 
    // Add to the blend total.
-   meta->addStatement( new GenOp( "   @ = max( @, @ );\r\n", blendTotal, blendTotal, detailBlend ) );
+   meta->addStatement( new GenOp( "   @ += @;\r\n", blendTotal, detailBlend ) );
 
    // If this is a prepass then we skip color.
    if ( fd.features.hasFeature( MFT_PrePassConditioner ) )
@@ -815,9 +815,8 @@ void TerrainMacroMapFeatHLSL::processPix(   Vector<ShaderComponent*> &componentL
    //Var *baseColor = (Var*)LangElement::find( "baseColor" );
    Var *outColor = (Var*)LangElement::find( "col" );
 
-   meta->addStatement( new GenOp( "      @ = lerp( @, @ + @, @ );\r\n",
-                                    outColor, outColor, outColor, detailColor, detailBlend ) );
-   //outColor, outColor, baseColor, detailColor, detailBlend ) );
+   meta->addStatement(new GenOp("      @ += @ * @;\r\n",
+                                    outColor, detailColor, detailBlend));
 
    meta->addStatement( new GenOp( "   }\r\n" ) );
 
diff --git a/Engine/source/terrain/terrRender.cpp b/Engine/source/terrain/terrRender.cpp
index c9e5070d1..d111bd7d7 100644
--- a/Engine/source/terrain/terrRender.cpp
+++ b/Engine/source/terrain/terrRender.cpp
@@ -170,7 +170,7 @@ bool TerrainBlock::_initBaseShader()
    desc.zDefined = true;
    desc.zWriteEnable = false;
    desc.zEnable = false;
-   desc.setBlend( true, GFXBlendSrcAlpha, GFXBlendOne );
+   desc.setBlend( true, GFXBlendSrcAlpha, GFXBlendInvSrcAlpha );
    desc.cullDefined = true;
    desc.cullMode = GFXCullNone;
    desc.colorWriteAlpha = false;