Fixes assignment of the mapTo field for terrain FX materials to point to the assetId rather than just the assetName, fixing the material mapping lookups

Fixes project import to comply to above change
Makes Material default mEffectColor to white instead of whatever default value it comes up with due to memset

Engine/source/materials/materialDefinition.cpp

@@ -229,6 +229,9 @@ Material::Material()
 
    dMemset(mEffectColor, 0, sizeof(mEffectColor));
 
+   mEffectColor[0] = LinearColorF::WHITE;
+   mEffectColor[1] = LinearColorF::WHITE;
+
    mFootstepSoundId = -1;     mImpactSoundId = -1;
    mImpactFXIndex = -1;
    INIT_ASSET(CustomFootstepSound);

Templates/BaseGame/game/tools/assetBrowser/scripts/assetTypes/terrainMaterial.tscript

@@ -32,7 +32,7 @@ function AssetBrowser::createTerrainMaterialAsset(%this)
    
    %fxMatDef = new Material("TerrainFX_" @ %assetName)
    {
-      mapTo = %assetName;
+      mapTo = %moduleName @ ":" @ %assetName;
       footstepSoundId = 0;
       terrainMaterials = "1";
       ShowDust = "1";

Templates/BaseGame/game/tools/projectImporter/importers/pre40/T3Dpre4ProjectImporter.tscript

@@ -1203,7 +1203,7 @@ function T3Dpre4ProjectImporter::processTerrainMaterialObject(%this, %fileObject
             {
                %fxMatObj = getField(%fxMatList, %i);
                %fxMatObjMapTo = findObjectField(%fxMatObj, "mapTo");
-               if(%fxMatObjMapTo $= %objectName)
+               if(%fxMatObjMapTo $= %objectName || %fxMatObjMapTo $= %assetName)
                {
                   %fileObject.FXMaterial = %fxMatObj;
                   break;
@@ -1215,7 +1215,7 @@ function T3Dpre4ProjectImporter::processTerrainMaterialObject(%this, %fileObject
       if(%fileObject.FXMaterial !$= "")
       {
          //Ensure our mapto is up to date for any name sanitize/tweaks
-         setObjectField(%fileObject.FXMaterial, "mapTo", %objectName);
+         setObjectField(%fileObject.FXMaterial, "mapTo", %moduleName @ ":" @ %assetName);
          
          //we associated to an FX material, so process that now
          %objectDefinition = "";
@@ -1249,7 +1249,7 @@ function T3Dpre4ProjectImporter::processTerrainMaterialObject(%this, %fileObject
          //if after all that we still have no FXMaterial, just create a new one
          %fxMat = new Material("TerrainFX_" @ %objectName)
          {
-            mapTo = %objectName;  
+            mapTo = %moduleName @ ":" @ %assetName;  
          };
          %asset.add(%fxMat);
       }

Templates/BaseGame/game/tools/worldEditor/scripts/interfaces/terrainMaterialDlg.ed.tscript

@@ -603,7 +603,7 @@ function TerrainMaterialDlg::prepSaveDirtyMaterial(%this, %material)
       if(!isObject(%fxMat))
       {
          %fxMat = new Material("TerrainFX_" @ %assetDef.assetName){
-            mapTo = %assetDef.assetName;
+            mapTo = %material.internalName;
          };
          
          %assetDef.add(%fxMat);