コード例 #1
0
bool InteriorLMManager::loadBaseLightmaps(LM_HANDLE interiorHandle, LM_HANDLE instanceHandle)
{
   AssertFatal(interiorHandle < mInteriors.size(), "InteriorLMManager::loadBaseLightmaps: invalid interior handle");
   AssertFatal(instanceHandle < mInteriors[interiorHandle]->mInstances.size(), "InteriorLMManager::loadBaseLightmaps: invalid instance handle");

   // must use a valid instance handle
   if(!instanceHandle)
      return(false);

   InteriorLMInfo * interiorInfo = mInteriors[interiorHandle];
   if(!interiorInfo->mNumLightmaps)
      return(false);

   InstanceLMInfo * baseInstanceInfo = interiorInfo->mInstances[0];

   // already loaded? (if any bitmap is present, then assumed that all will be)
   GFXTexHandle texture (baseInstanceInfo->mLightmapHandles[0]);
   if(texture.isValid() && texture.getBitmap())
      return(true);

   InstanceLMInfo * instanceInfo = interiorInfo->mInstances[instanceHandle];

   Resource<InteriorResource> & interiorRes = instanceInfo->mInstance->getResource();
   if(!bool(interiorRes))
      return(false);

   GBitmap *** pBitmaps = 0;
   if(!instanceInfo->mInstance->readLightmaps(&pBitmaps))
      return(false);

   for(U32 i = 0; i < interiorRes->getNumDetailLevels(); i++)
   {
      Interior * interior = interiorRes->getDetailLevel(i);
      AssertFatal(interior, "InteriorLMManager::loadBaseLightmaps: invalid detail level in resource");
      AssertFatal(interior->getLMHandle() != LM_HANDLE(-1), "InteriorLMManager::loadBaseLightmaps: interior not added to manager");
      AssertFatal(interior->getLMHandle() < mInteriors.size(), "InteriorLMManager::loadBaseLightmaps: invalid interior");

      InteriorLMInfo * interiorInfo = mInteriors[interior->getLMHandle()];
      InstanceLMInfo * baseInstanceInfo = interiorInfo->mInstances[0];

      for(U32 j = 0; j < interiorInfo->mNumLightmaps; j++)
      {
         AssertFatal(pBitmaps[i][j], "InteriorLMManager::loadBaseLightmaps: invalid bitmap");

         if (baseInstanceInfo->mLightmapHandles[j])
			{
				GFXTextureObject * texObj = baseInstanceInfo->mLightmapHandles[j];
				texObj->mBitmap = pBitmaps[i][j];
			}
			else
         	baseInstanceInfo->mLightmapHandles[j].set( pBitmaps[i][j], &GFXDefaultPersistentProfile, false, String("Interior Lightmap Handle") );
      }
   }

   delete [] pBitmaps;
   return(true);
}
コード例 #2
0
void AtlasTexChunk::writeDDS(Stream *s)
{
    // Load the DDS into a texture, then use D3DX to write it out.
    GFXTexHandle tex;
    tex.set(dds, &GFXDefaultStaticDiffuseProfile, false, avar("%s - %s", __FUNCTION__, ( const char* ) dds->mSourcePath.getFullPath() ) );
    GFXD3D9TextureObject *gdto = (GFXD3D9TextureObject *)tex.getPointer();

    // Write to buffer.
    ID3DXBuffer *buffer = NULL;
    GFXD3DX.D3DXSaveTextureToFileInMemory(&buffer, D3DXIFF_DDS, gdto->getTex(), NULL);

    // And write that buffer... to a stream. Ho ho ho!
    s->write(buffer->GetBufferSize(), buffer->GetBufferPointer());
}
コード例 #3
0
ファイル: gfxTextureHandle.cpp プロジェクト: nev7n/Torque3D
GFXTexHandle::GFXTexHandle( const GFXTexHandle &handle, const String &desc )
{
   StrongObjectRef::set( handle.getPointer() );
   
   #ifdef TORQUE_DEBUG
      if ( getPointer() )
         getPointer()->mDebugDescription = desc;
   #endif   
}
コード例 #4
0
ファイル: levelInfo.cpp プロジェクト: nev7n/Torque3D
LevelInfo::~LevelInfo()
{
   LightManager::smActivateSignal.remove(this, &LevelInfo::_onLMActivate);
   if (!mAccuTexture.isNull())
   {
      mAccuTexture.free();
      gLevelAccuMap.free();
   }
}
コード例 #5
0
//------------------------------------------------------------------------------
GFXTexHandle &InteriorLMManager::duplicateBaseLightmap(LM_HANDLE interiorHandle, LM_HANDLE instanceHandle, U32 index)
{
   AssertFatal(interiorHandle < mInteriors.size(), "InteriorLMManager::duplicateBaseLightmap: invalid interior handle");
   AssertFatal(instanceHandle < mInteriors[interiorHandle]->mInstances.size(), "InteriorLMManager::duplicateBaseLightmap: invalid instance handle");
   AssertFatal(index < mInteriors[interiorHandle]->mNumLightmaps, "InteriorLMManager::duplicateBaseLightmap: invalid texture index");

   // already exists?
   GFXTexHandle texHandle = mInteriors[interiorHandle]->mInstances[instanceHandle]->mLightmapHandles[index];
   if(texHandle && texHandle->getBitmap() )
      return mInteriors[interiorHandle]->mInstances[instanceHandle]->mLightmapHandles[index];

   AssertFatal(mInteriors[interiorHandle]->mInstances[0]->mLightmapHandles[index], "InteriorLMManager::duplicateBaseLightmap: invalid base handle");

   // copy it
   GBitmap * src = mInteriors[interiorHandle]->mInstances[0]->mLightmapHandles[index]->getBitmap();
   GBitmap * dest = new GBitmap(*src);

   // don't want this texture to be downloaded yet (SceneLighting will take care of that)
   GFXTexHandle tHandle( dest, &GFXDefaultPersistentProfile, true, String("Interior Lightmap Handle 2") );
   mInteriors[interiorHandle]->mInstances[instanceHandle]->mLightmapHandles[index] = tHandle;
   return mInteriors[interiorHandle]->mInstances[instanceHandle]->mLightmapHandles[index];
}
コード例 #6
0
void ImposterCapture::_renderToTexture( GFXTexHandle texHandle, GBitmap *outBitmap, const ColorI &color )
{
   GFXDEBUGEVENT_SCOPE( ImposterCapture_RenderToTexture, ColorI::RED );
   PROFILE_SCOPE( ImposterCapture_RenderToTexture );

   mRenderTarget->attachTexture( GFXTextureTarget::Color0, texHandle );
   mRenderTarget->attachTexture( GFXTextureTarget::DepthStencil, mDepthBuffer );
   GFX->setActiveRenderTarget( mRenderTarget );

   GFX->clear( GFXClearZBuffer | GFXClearStencil | GFXClearTarget, color, 1.0f, 0 );

   mShapeInstance->render( mRData, mDl, 1.0f );

   mState->getRenderPass()->renderPass( mState );

   mRenderTarget->resolve();

   texHandle->copyToBmp( outBitmap );
}
コード例 #7
0
ファイル: terrRender.cpp プロジェクト: 03050903/Torque3D
void TerrainBlock::_updateBaseTexture(bool writeToCache)
{
   if ( !mBaseShader && !_initBaseShader() )
      return;

   // This can sometimes occur outside a begin/end scene.
   const bool sceneBegun = GFX->canCurrentlyRender();
   if ( !sceneBegun )
      GFX->beginScene();

   GFXDEBUGEVENT_SCOPE( TerrainBlock_UpdateBaseTexture, ColorI::GREEN );

   PROFILE_SCOPE( TerrainBlock_UpdateBaseTexture );

   GFXTransformSaver saver;

   const U32 maxTextureSize = GFX->getCardProfiler()->queryProfile( "maxTextureSize", 1024 );

   U32 baseTexSize = getNextPow2( mBaseTexSize );
   baseTexSize = getMin( maxTextureSize, baseTexSize );
   Point2I destSize( baseTexSize, baseTexSize );

   // Setup geometry
   GFXVertexBufferHandle<GFXVertexPT> vb;
   {
      F32 copyOffsetX = 2.0f * GFX->getFillConventionOffset() / (F32)destSize.x;
      F32 copyOffsetY = 2.0f * GFX->getFillConventionOffset() / (F32)destSize.y;

      GFXVertexPT points[4];
      points[0].point = Point3F(1.0 - copyOffsetX, -1.0 + copyOffsetY, 0.0);
      points[0].texCoord = Point2F(1.0, 1.0f);
      points[1].point = Point3F(1.0 - copyOffsetX, 1.0 + copyOffsetY, 0.0);
      points[1].texCoord = Point2F(1.0, 0.0f);
      points[2].point = Point3F(-1.0 - copyOffsetX, -1.0 + copyOffsetY, 0.0);
      points[2].texCoord = Point2F(0.0, 1.0f);
      points[3].point = Point3F(-1.0 - copyOffsetX, 1.0 + copyOffsetY, 0.0);
      points[3].texCoord = Point2F(0.0, 0.0f);

      vb.set( GFX, 4, GFXBufferTypeVolatile );
      GFXVertexPT *ptr = vb.lock();
      if(ptr)
      {
         dMemcpy( ptr, points, sizeof(GFXVertexPT) * 4 );
         vb.unlock();
      }
   }

   GFXTexHandle blendTex;

   // If the base texture is already a valid render target then 
   // use it to render to else we create one.
   if (  mBaseTex.isValid() && 
         mBaseTex->isRenderTarget() &&
         mBaseTex->getFormat() == GFXFormatR8G8B8A8 &&
         mBaseTex->getWidth() == destSize.x &&
         mBaseTex->getHeight() == destSize.y )
      blendTex = mBaseTex;
   else
      blendTex.set( destSize.x, destSize.y, GFXFormatR8G8B8A8, &GFXDefaultRenderTargetProfile, "" );

   GFX->pushActiveRenderTarget();   

   // Set our shader stuff
   GFX->setShader( mBaseShader );
   GFX->setShaderConstBuffer( mBaseShaderConsts );
   GFX->setStateBlock( mBaseShaderSB );
   GFX->setVertexBuffer( vb );

   mBaseTarget->attachTexture( GFXTextureTarget::Color0, blendTex );
   GFX->setActiveRenderTarget( mBaseTarget );

   GFX->clear( GFXClearTarget, ColorI(0,0,0,255), 1.0f, 0 );

   GFX->setTexture( 0, mLayerTex );
   mBaseShaderConsts->setSafe( mBaseLayerSizeConst, (F32)mLayerTex->getWidth() );      

   for ( U32 i=0; i < mBaseTextures.size(); i++ )
   {
      GFXTextureObject *tex = mBaseTextures[i];
      if ( !tex )
         continue;

      GFX->setTexture( 1, tex );

      F32 baseSize = mFile->mMaterials[i]->getDiffuseSize();
      F32 scale = 1.0f;
      if ( !mIsZero( baseSize ) )
         scale = getWorldBlockSize() / baseSize;
      
      // A mistake early in development means that texture
      // coords are not flipped correctly.  To compensate
      // we flip the y scale here.
      mBaseShaderConsts->setSafe( mBaseTexScaleConst, Point2F( scale, -scale ) );
      mBaseShaderConsts->setSafe( mBaseTexIdConst, (F32)i );

      GFX->drawPrimitive( GFXTriangleStrip, 0, 2 );
   }

   mBaseTarget->resolve();
   
   GFX->setShader( NULL );
   //GFX->setStateBlock( NULL ); // WHY NOT?
   GFX->setShaderConstBuffer( NULL );
   GFX->setVertexBuffer( NULL );

   GFX->popActiveRenderTarget();

   // End it if we begun it... Yeehaw!
   if ( !sceneBegun )
      GFX->endScene();

   /// Do we cache this sucker?
   if (mBaseTexFormat == NONE || !writeToCache)
   {
      // We didn't cache the result, so set the base texture
      // to the render target we updated.  This should be good
      // for realtime painting cases.
      mBaseTex = blendTex;
   }
   else if (mBaseTexFormat == DDS)
   {
      String cachePath = _getBaseTexCacheFileName();

      FileStream fs;
      if ( fs.open( _getBaseTexCacheFileName(), Torque::FS::File::Write ) )
      {
         // Read back the render target, dxt compress it, and write it to disk.
         GBitmap blendBmp( destSize.x, destSize.y, false, GFXFormatR8G8B8A8 );
         blendTex.copyToBmp( &blendBmp );

         /*
         // Test code for dumping uncompressed bitmap to disk.
         {
         FileStream fs;
         if ( fs.open( "./basetex.png", Torque::FS::File::Write ) )
         {
         blendBmp.writeBitmap( "png", fs );
         fs.close();
         }         
         }
         */

         blendBmp.extrudeMipLevels();

         DDSFile *blendDDS = DDSFile::createDDSFileFromGBitmap( &blendBmp );
         DDSUtil::squishDDS( blendDDS, GFXFormatDXT1 );

         // Write result to file stream
         blendDDS->write( fs );
         
         delete blendDDS;
      }
      fs.close();
   }
   else
   {
      FileStream stream;
      if (!stream.open(_getBaseTexCacheFileName(), Torque::FS::File::Write))
      {
         mBaseTex = blendTex;
         return;
      }

      GBitmap bitmap(blendTex->getWidth(), blendTex->getHeight(), false, GFXFormatR8G8B8);
      blendTex->copyToBmp(&bitmap);
      bitmap.writeBitmap(formatToExtension(mBaseTexFormat), stream);
   }
}
コード例 #8
0
void blInteriorProxy::addToShadowVolume(ShadowVolumeBSP * shadowVolume, LightInfo * light, S32 level)
{
    if(light->getType() != LightInfo::Vector)
        return;

    ColorF ambient = light->getAmbient();

    bool shadowedTree = true;

    InteriorInstance* interior = dynamic_cast<InteriorInstance*>(getObject());
    if (!interior)
        return;
    Resource<InteriorResource> mInteriorRes = interior->getResource();

    // check if just getting shadow detail
    if(level == SceneLighting::SHADOW_DETAIL)
    {
        shadowedTree = false;
        level = mInteriorRes->getNumDetailLevels() - 1;
    }

    Interior * detail = mInteriorRes->getDetailLevel(level);
    bool hasAlarm = detail->hasAlarmState();

    // make sure surfaces do not get processed more than once
    BitVector surfaceProcessed;
    surfaceProcessed.setSize(detail->mSurfaces.size());
    surfaceProcessed.clear();

    ColorI color = light->getAmbient();

    // go through the zones of the interior and grab outside visible surfaces
    for(U32 i = 0; i < detail->getNumZones(); i++)
    {
        Interior::Zone & zone = detail->mZones[i];
        for(U32 j = 0; j < zone.surfaceCount; j++)
        {
            U32 surfaceIndex = detail->mZoneSurfaces[zone.surfaceStart + j];

            // dont reprocess a surface
            if(surfaceProcessed.test(surfaceIndex))
                continue;
            surfaceProcessed.set(surfaceIndex);

            Interior::Surface & surface = detail->mSurfaces[surfaceIndex];

            // outside visible?
            if(!(surface.surfaceFlags & Interior::SurfaceOutsideVisible))
                continue;

            // good surface?
            PlaneF plane = detail->getPlane(surface.planeIndex);
            if(Interior::planeIsFlipped(surface.planeIndex))
                plane.neg();

            // project the plane
            PlaneF projPlane;
            mTransformPlane(interior->getTransform(), interior->getScale(), plane, &projPlane);

            // fill with ambient? (need to do here, because surface will not be
            // added to the SVBSP tree)
            F32 dot = mDot(projPlane, light->getDirection());
            if(dot > -gParellelVectorThresh)// && !(GFX->getPixelShaderVersion() > 0.0) )
            {
                if(shadowedTree)
                {
                    // alarm lighting
                    GFXTexHandle normHandle = gInteriorLMManager.duplicateBaseLightmap(detail->getLMHandle(), interior->getLMHandle(), detail->getNormalLMapIndex(surfaceIndex));
                    GFXTexHandle alarmHandle;

                    GBitmap * normLightmap = normHandle->getBitmap();
                    GBitmap * alarmLightmap = 0;

                    // check if they share the lightmap
                    if(hasAlarm)
                    {
                        if(detail->getNormalLMapIndex(surfaceIndex) != detail->getAlarmLMapIndex(surfaceIndex))
                        {
                            alarmHandle = gInteriorLMManager.duplicateBaseLightmap(detail->getLMHandle(), interior->getLMHandle(), detail->getAlarmLMapIndex(surfaceIndex));
                            alarmLightmap = alarmHandle->getBitmap();
                        }
                    }

                    //
                    // Support for interior light map border sizes.
                    //
                    U32 xlen, ylen, xoff, yoff;
                    U32 lmborder = detail->getLightMapBorderSize();
                    xlen = surface.mapSizeX + (lmborder * 2);
                    ylen = surface.mapSizeY + (lmborder * 2);
                    xoff = surface.mapOffsetX - lmborder;
                    yoff = surface.mapOffsetY - lmborder;

                    // attemp to light normal and alarm lighting
                    for(U32 c = 0; c < 2; c++)
                    {
                        GBitmap * lightmap = (c == 0) ? normLightmap : alarmLightmap;
                        if(!lightmap)
                            continue;

                        // fill it
                        for(U32 y = 0; y < ylen; y++)
                        {
                            for(U32 x = 0; x < xlen; x++)
                            {
                                ColorI outColor(255, 0, 0, 255);

#ifndef SET_COLORS
                                ColorI lmColor(0, 0, 0, 255);
                                lightmap->getColor(xoff + x, yoff + y, lmColor);

                                U32 _r = static_cast<U32>( color.red ) + static_cast<U32>( lmColor.red );
                                U32 _g = static_cast<U32>( color.green ) + static_cast<U32>( lmColor.green );
                                U32 _b = static_cast<U32>( color.blue ) + static_cast<U32>( lmColor.blue );

                                outColor.red   = mClamp(_r, 0, 255);
                                outColor.green = mClamp(_g, 0, 255);
                                outColor.blue  = mClamp(_b, 0, 255);
#endif

                                lightmap->setColor(xoff + x, yoff + y, outColor);
                            }
                        }
                    }
                }
                continue;
            }

            ShadowVolumeBSP::SVPoly * poly = buildInteriorPoly(shadowVolume, detail,
                                             surfaceIndex, light, shadowedTree);

            // insert it into the SVBSP tree
            shadowVolume->insertPoly(poly);
        }
    }
}
コード例 #9
0
void TerrainFile::_loadLegacy(  FileStream &stream )
{
   // Some legacy constants.
   enum 
   {
      MaterialGroups = 8,
      BlockSquareWidth = 256,
   };

   const U32 sampleCount = BlockSquareWidth * BlockSquareWidth;
   mSize = BlockSquareWidth;

   // Load the heightmap.
   mHeightMap.setSize( sampleCount );
   for ( U32 i=0; i < mHeightMap.size(); i++ )
      stream.read( &mHeightMap[i] );

   // Prior to version 7 we stored this weird material struct.
   const U32 MATERIAL_GROUP_MASK = 0x7;
   struct Material 
   {
      enum Flags 
      {
         Plain          = 0,
         Rotate         = 1,
         FlipX          = 2,
         FlipXRotate    = 3,
         FlipY          = 4,
         FlipYRotate    = 5,
         FlipXY         = 6,
         FlipXYRotate   = 7,
         RotateMask     = 7,
         Empty          = 8,
         Modified       = BIT(7),

         // must not clobber TerrainFile::MATERIAL_GROUP_MASK bits!
         PersistMask       = BIT(7)
      };

      U8 flags;
      U8 index;
   };

   // Temp locals for loading before we convert to the new
   // version 7+ format.
   U8 baseMaterialMap[sampleCount] = { 0 };
   U8 *materialAlphaMap[MaterialGroups] = { 0 };
   Material materialMap[BlockSquareWidth * BlockSquareWidth];

   // read the material group map and flags...
   dMemset(materialMap, 0, sizeof(materialMap));

   AssertFatal(!(Material::PersistMask & MATERIAL_GROUP_MASK),
      "Doh! We have flag clobberage...");

   for (S32 j=0; j < sampleCount; j++)
   {
      U8 val;
      stream.read(&val);

      //
      baseMaterialMap[j] = val & MATERIAL_GROUP_MASK;
      materialMap[j].flags = val & Material::PersistMask;
   }

   // Load the material names.
   Vector<String> materials;
   for ( U32 i=0; i < MaterialGroups; i++ )
   {
      String matName;
      stream.read( &matName );
      if ( matName.isEmpty() )
         continue;

      if ( mFileVersion > 3 && mFileVersion < 6 )
      {
         // Between version 3 and 5 we store the texture file names 
         // relative to the terrain file.  We restore the full path
         // here so that we can create a TerrainMaterial from it.
         materials.push_back( Torque::Path::CompressPath( mFilePath.getRoot() + mFilePath.getPath() + '/' + matName ) );
      }
      else
         materials.push_back( matName );
   }

   if ( mFileVersion <= 3 )
   {
      GFXTexHandle terrainMat;
      Torque::Path matRelPath;

      // Try to automatically fix up our material file names
      for (U32 i = 0; i < materials.size(); i++)
      {
         if ( materials[i].isEmpty() )
            continue;
            
         terrainMat.set( materials[i], &GFXDefaultPersistentProfile, avar( "%s() - (line %d)", __FUNCTION__, __LINE__ ) );
         if ( terrainMat )
            continue;

         matRelPath = materials[i];

         String path = matRelPath.getPath();

         String::SizeType n = path.find( '/', 0, String::NoCase );
         if ( n != String::NPos )
         {
            matRelPath.setPath( String(Con::getVariable( "$defaultGame" )) + path.substr( n, path.length() - n ) );

            terrainMat.set( matRelPath, &GFXDefaultPersistentProfile, avar( "%s() - (line %d)", __FUNCTION__, __LINE__ ) );
            if ( terrainMat )
            {
               materials[i] = matRelPath.getFullPath();
               mNeedsResaving = true;
            }
         }
         
      } // for (U32 i = 0; i < TerrainBlock::MaterialGroups; i++)
      
   } // if ( mFileVersion <= 3 )

   if ( mFileVersion == 1 )
   {
      for( S32 j = 0; j < sampleCount; j++ )
      {
         if ( materialAlphaMap[baseMaterialMap[j]] == NULL )
         {
            materialAlphaMap[baseMaterialMap[j]] = new U8[sampleCount];
            dMemset(materialAlphaMap[baseMaterialMap[j]], 0, sampleCount);
         }

         materialAlphaMap[baseMaterialMap[j]][j] = 255;
      }
   }
   else
   {
      for( S32 k=0; k < materials.size(); k++ )
      {
         AssertFatal(materialAlphaMap[k] == NULL, "Bad assumption.  There should be no alpha map at this point...");
         materialAlphaMap[k] = new U8[sampleCount];
         stream.read(sampleCount, materialAlphaMap[k]);
      }
   }

   // Throw away the old texture and heightfield scripts.
   if ( mFileVersion >= 3 )
   {
      U32 len;
      stream.read(&len);
      char *textureScript = (char *)dMalloc(len + 1);
      stream.read(len, textureScript);
      dFree( textureScript );

      stream.read(&len);
      char *heightfieldScript = (char *)dMalloc(len + 1);
      stream.read(len, heightfieldScript);
      dFree( heightfieldScript );
   }

   // Load and throw away the old edge terrain paths.
   if ( mFileVersion >= 5 )
   {
      stream.readSTString(true);
      stream.readSTString(true);
   }

   U32 layerCount = materials.size() - 1;

   // Ok... time to convert all this mess to the layer index map!
   for ( U32 i=0; i < sampleCount; i++ )
   {
      // Find the greatest layer.
      U32 layer = 0;
      U32 lastValue = 0;
      for ( U32 k=0; k < MaterialGroups; k++ )
      {
         if ( materialAlphaMap[k] && materialAlphaMap[k][i] > lastValue )
         {
            layer = k;
            lastValue = materialAlphaMap[k][i];
         }
      }

      // Set the layer index.   
      mLayerMap[i] = getMin( layer, layerCount );
   }
   
   // Cleanup.
   for ( U32 i=0; i < MaterialGroups; i++ )
      delete [] materialAlphaMap[i];

   // Force resaving on these old file versions.
   //mNeedsResaving = false;

   // Resolve the TerrainMaterial objects from the names.
   _resolveMaterials( materials );
}
コード例 #10
0
void MaterialList::mapMaterial( U32 i )
{
   AssertFatal( i < size(), "MaterialList::mapMaterialList - index out of bounds" );

   if( mMatInstList[i] != NULL )
      return;

   // lookup a material property entry
   const String &matName = getMaterialName(i);

   // JMQ: this code assumes that all materials have names.
   if( matName.isEmpty() )
   {
      mMatInstList[i] = NULL;
      return;
   }

   String materialName = MATMGR->getMapEntry(matName);

   // IF we didn't find it, then look for a PolyStatic generated Material
   //  [a little cheesy, but we need to allow for user override of generated Materials]
   if ( materialName.isEmpty() )
      materialName = MATMGR->getMapEntry( String::ToString( "polyMat_%s", matName.c_str() ) );

   if ( materialName.isNotEmpty() )
   {
      Material * mat = MATMGR->getMaterialDefinitionByName( materialName );
      mMatInstList[i] = mat ? mat->createMatInstance() : MATMGR->createWarningMatInstance();
   }
   else
   {
      if ( Con::getBoolVariable( "$Materials::createMissing", true ) )
      {
         // No Material found, create new "default" material with just a diffuseMap

         // First see if there is a valid diffuse texture
         GFXTexHandle texHandle;
         if (mLookupPath.isEmpty())
         {
            texHandle.set( mMaterialNames[i], &GFXDefaultStaticDiffuseProfile, avar("%s() - handle (line %d)", __FUNCTION__, __LINE__) );
         }
         else
         {
            // Should we strip off the extension of the path here before trying
            // to load the texture?
            String fullPath = String::ToString( "%s/%s", mLookupPath.c_str(), mMaterialNames[i].c_str() );
            texHandle.set( fullPath, &GFXDefaultStaticDiffuseProfile, avar("%s() - handle (line %d)", __FUNCTION__, __LINE__) );
         }

         if ( texHandle.isValid() )
         {
            String newMatName = Sim::getUniqueName( "DefaultMaterial" );
            Material *newMat = MATMGR->allocateAndRegister( newMatName, mMaterialNames[i] );

            // Flag this as an autogenerated Material
            newMat->mAutoGenerated = true;

            // Overwrite diffuseMap in new material
            newMat->mDiffuseMapFilename[0] = texHandle->mTextureLookupName;

            // Set up some defaults for transparent textures
            if (texHandle->mHasTransparency)
            {
               newMat->mTranslucent = true;
               newMat->mTranslucentBlendOp = Material::LerpAlpha;
               newMat->mTranslucentZWrite = true;
               newMat->mAlphaRef = 20;
            }

            // create a MatInstance for the new material
            mMatInstList[i] = newMat->createMatInstance();

            #ifndef TORQUE_SHIPPING
               Con::warnf( "[MaterialList::mapMaterials] Creating missing material for texture: %s", texHandle->mTextureLookupName.c_str() );
            #endif
         }
         else
         {
            Con::errorf( "[MaterialList::mapMaterials] Unable to find material for texture: %s", mMaterialNames[i].c_str() );
            mMatInstList[i] = MATMGR->createWarningMatInstance();
         }
      }
      else
      {
         mMatInstList[i] = MATMGR->createWarningMatInstance();
      }
   }
}