Do TerrainMaterials need a Material for their diffuseMap?

Materials, textures, lighting, postfx
5 posts Page 1 of 1
Mud-H
Posts: 182
Joined: Thu Feb 19, 2015 3:08 pm
by Mud-H » Fri Jul 03, 2015 10:06 pm
I'm trying to get a rid of the missing material warning for TerrainMaterial:

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 [MaterialList::mapMaterials] Unable to find material for texture: [matName]

After comparing with fullTemplate, I realized that all TerrainMaterial have a Material defined for the diffuseMap, what is it needed for? Just to get rid off the warning?

I remember a while back I was making a Material for each of my TerrainMaterial but I lost this habit and I don't see a difference. I just want to know if I'm missing something, is there a use for the extra Material or it's just in case you need the TerrainMaterial as standard material?
If it's not needed, anyone have a solution to get rid of the warning?
Duion
Posts: 916
Joined: Sun Feb 08, 2015 1:51 am
 
by Duion » Fri Jul 03, 2015 11:05 pm
Terrain materials don't need a standard material, but there is a case where they do, there are Terrain_FX materials that define some settings like footstep sound, decals, particle effects etc.
So you need a "new TerrainMaterial()" and a "singleton Material(TerrainFX_)
No idea why, but it works that way.
Mud-H
Posts: 182
Joined: Thu Feb 19, 2015 3:08 pm
by Mud-H » Fri Jul 03, 2015 11:51 pm
Well since I'm lasy and don't like having to write extra Material, I made a TerrainMaterial fix function that check all TerrainMaterial in art/terrains folder. It create a new material file with a pre_ prefix containing all diffuseMap with missing Materials.

Here's the initial version in case someone want to use it, it's a quick scripting job but it do the job and save time writing material. Also you can use the %reset to regenerate all the materials. The %loadNew var is for loading the new Material file instantly once created . For future updates, it will be included in my helpers collection.

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function fixTerrainMaterialsStock(%loadNew,%reset) {
   %searchFolder = "art/terrains/*materials.cs";

   //Now go through each files again to add a brush with latest items
   for(%matFile = findFirstFile(%searchFolder); %matFile !$= ""; %matFile = findNextFile(%searchFolder)) {
      %fileObj = new FileObject();
      // Open a text file, if it exists
      %fileObj.OpenForRead(%matFile);
      %folder = filePath(%matFile);
      %fileBase = fileBase(%matFile);
      %newMatFile = %folder@"/pre_"@%fileBase@".cs";
      %fileWrite = "";

      while( !%fileObj.isEOF() ) {
         %line = %fileObj.readLine();

         if (strFind(%line,"TerrainMaterial")) {
            %inTerrainMaterial = true;
         } else if(%inTerrainMaterial && strFind(%line,"diffuseMap")) {
            %lineFields = strreplace(%line,"\"","\t");
            %difMap = getField(%lineFields,getFieldCount(%lineFields)-2);
            %difMapName = fileBase(%difMap);
            %matObj = "Mat_"@%difMapName;
            %matObj = strReplaceList(%matObj,"-" TAB "_" NL " " TAB "_");

            if (isObject(%matObj) && %reset)
               delObj(%matObj);

            if (!isObject(%matObj)) {
               if (!isObject(%fileWrite)) {
                  %fileWrite = new FileObject();
                  %fileWrite.OpenForWrite(%newMatFile);
                  %fileWrite.writeLine("//==============================================================================");
                  %fileWrite.writeLine("//Auto generated material for TerrainMaterial in:"@%fileBase@"");
                  %fileWrite.writeLine("//------------------------------------------------------------------------------");
                  %fileWrite.writeLine("//==============================================================================");
                  %fileWrite.writeLine("info(\"Loading generated materials for:"@%fileBase@"\");");
               }

               %fileWrite.writeLine("//==============================================================================");
               %fileWrite.writeLine("singleton Material("@%matObj@")");
               %fileWrite.writeLine("{");
               %fileWrite.writeLine("   mapTo = \""@%difMapName@"\";");
               %fileWrite.writeLine("   footstepSoundId = 0;");
               %fileWrite.writeLine("   terrainMaterials = \"1\";");
               %fileWrite.writeLine("   ShowDust = \"1\";");
               %fileWrite.writeLine("   showFootprints = \"1\";");
               %fileWrite.writeLine("   materialTag0 = \"Terrain\";");
               %fileWrite.writeLine("   impactSoundId = 0;");
               %fileWrite.writeLine("};");
               %fileWrite.writeLine("//------------------------------------------------------------------------------");               
            }
         } else if (strFind(%line,"};")) {
            %inTerrainMaterial = false;
         }
      }

      if (isObject(%fileWrite)) {
         %fileWrite.close();
         %fileWrite.delete();
         if (%loadNew)
            exec(%newMatFile);
      }

      %fileObj.close();
      %fileObj.delete();
   }   
}

You could then simply paster the new material file before your terrain materials or to keep the pre_ material file, I have add a check for that file in the loadMaterials function, if the pre_ file is found, it will execute it before executing the standard material file.

Just add this before the exec(%file) in loadMaterials()

Code: Select all

%folder = filePath(%file);
%fileBase = fileBase(%file);
%preMatFile = %folder@"/pre_"@%fileBase@".cs";
if (isFile(%preMatFile))
   exec(%preMatFile);
Duion
Posts: 916
Joined: Sun Feb 08, 2015 1:51 am
 
by Duion » Sat Jul 04, 2015 2:07 am
I don't understand what you are doing there, I just create materials by copy and paste by hand and then change the values I need.
Mud-H
Posts: 182
Joined: Thu Feb 19, 2015 3:08 pm
by Mud-H » Sat Jul 04, 2015 2:32 am
Yeah, I know but like I said I'm lazy. These days I'm experimenting a lot with terrains and I often change or create materials. With that functions, I can make sure the linked Materials are up-to-date.
It's quite useless for basic use of already develloped materials but it will help me a bit... And I would expand it someday...
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