Method onAdd

Engine/source/materials/customMaterialDefinition.cpp:111–169

-------------------------------------------------------------------------- On add - verify data settings --------------------------------------------------------------------------

// On add - verify data settings
//--------------------------------------------------------------------------
bool CustomMaterial::onAdd()
{
   if (Parent::onAdd() == false)
      return false;

   mShaderData = dynamic_cast<ShaderData*>(Sim::findObject( mShaderDataName ) );
   if(mShaderDataName.isNotEmpty() && mShaderData == NULL)
   {
      logError("Failed to find ShaderData %s", mShaderDataName.c_str());
      return false;
   }
   
   const char* samplerDecl = "sampler";
   S32 samplerDeclLen = dStrlen(samplerDecl);
   S32 i = 0;
   for (SimFieldDictionaryIterator itr(getFieldDictionary()); *itr; ++itr)
   {
   	SimFieldDictionary::Entry* entry = *itr;
      if (dStrStartsWith(entry->slotName, samplerDecl))
      {
      	if (i >= MAX_TEX_PER_PASS)
         {
            logError("Too many sampler declarations, you may only have %i", MAX_TEX_PER_PASS);
            return false;
         }
         
         if (dStrlen(entry->slotName) == samplerDeclLen)
         {
         	logError("sampler declarations must have a sampler name, e.g. sampler[\"diffuseMap\"]");
            return false;
         }
         
         // Assert sampler names are defined on ShaderData
         S32 pos = -1;
         String samplerName = entry->slotName + samplerDeclLen;
         samplerName.insert(0, '$');
         mShaderData->hasSamplerDef(samplerName, pos);
         
         if(pos == -1)
         {
            const char *error = (avar("CustomMaterial(%s) bind sampler[%s] and is not present on ShaderData(%s)", 
               getName(), samplerName.c_str(), mShaderDataName.c_str() ));
            Con::errorf(error);

            pos = i;

#ifdef TORQUE_OPENGL
            GFXAssertFatal(0, error);
            continue;
#endif
         }
         mSamplerNames[pos] = samplerName;
         mTexFilename[pos] = entry->value;
         ++i;
      }
   }

   return true;