void ApplyOverrides(std::string name, AtNode* node, std::vector<std::string> tags, ProcArgs & args)
{
   bool foundInPath = false;
   for(std::vector<std::string>::iterator it=args.overrides.begin(); it!=args.overrides.end(); ++it)
   {
      Json::Value overrides;                        
      if(it->find("/") != std::string::npos) // Based on path
      {
        if(name.find(*it) != std::string::npos)
        {
          overrides = args.overrideRoot[*it];
          foundInPath = true;
        }
      } 
      else if(matchPattern(name,*it)) // based on wildcard expression
      {
          overrides = args.overrideRoot[*it];
          foundInPath = true;
      }
      else if(foundInPath == false)
      {
        if (std::find(tags.begin(), tags.end(), *it) != tags.end())
        {
          overrides = args.overrideRoot[*it];
        }
      }

      if(overrides.size() > 0)
      {
        for( Json::ValueIterator itr = overrides.begin() ; itr != overrides.end() ; itr++ ) 
        {
          std::string attribute = itr.key().asString();

          const AtNodeEntry* nodeEntry = AiNodeGetNodeEntry(node);
          const AtParamEntry* paramEntry = AiNodeEntryLookUpParameter(nodeEntry, attribute.c_str());

          if ( paramEntry != NULL && attribute!="invert_normals" || attribute == "matte")
          {

            Json::Value val = args.overrideRoot[*it][itr.key().asString()];
            if( val.isString() ) 
              AiNodeSetStr(node, attribute.c_str(), val.asCString());
            else if( val.isBool() )
            {
              if(attribute == "matte")
              {
                  AiMsgDebug("[ABC] adding enable_matte to %s", AiNodeGetName(node));
                  AddUserGeomParams(node,"enable_matte",AI_TYPE_BOOLEAN);
                  AiNodeSetBool(node,"enable_matte", val.asBool());
              }
              else
              {
                  AiNodeSetBool(node, attribute.c_str(), val.asBool());
              }
            }
            else if( val.isInt() ) 
            {
              //make the difference between Byte & int!
              int typeEntry = AiParamGetType(paramEntry);
              if(typeEntry == AI_TYPE_BYTE)
              { 
                if(attribute=="visibility")
                {
                  AtByte attrViz = val.asInt();
                  // special case, we must determine it against the general viz.
                  AtByte procViz = AiNodeGetByte( args.proceduralNode, "visibility" );
                  AtByte compViz = AI_RAY_ALL;
                  {
                    compViz &= ~AI_RAY_GLOSSY;
                    if(procViz > compViz)
                      procViz &= ~AI_RAY_GLOSSY;
                    else
                      attrViz &= ~AI_RAY_GLOSSY;
                    compViz &= ~AI_RAY_DIFFUSE;
                    if(procViz > compViz)
                      procViz &= ~AI_RAY_DIFFUSE;
                    else
                      attrViz &= ~AI_RAY_DIFFUSE;
                    compViz &= ~AI_RAY_REFRACTED;
                    if(procViz > compViz)
                      procViz &= ~AI_RAY_REFRACTED;
                    else
                      attrViz &= ~AI_RAY_REFRACTED;
                    compViz &= ~AI_RAY_REFLECTED;
                    if(procViz > compViz)
                      procViz &= ~AI_RAY_REFLECTED;
                    else
                      attrViz &= ~AI_RAY_REFLECTED;
                    compViz &= ~AI_RAY_SHADOW;
                    if(procViz > compViz)
                      procViz &= ~AI_RAY_SHADOW;
                    else
                      attrViz &= ~AI_RAY_SHADOW;
                    compViz &= ~AI_RAY_CAMERA;
                    if(procViz > compViz)
                      procViz &= ~AI_RAY_CAMERA;
                    else
                      attrViz &= ~AI_RAY_CAMERA;
                  }

                  AiNodeSetByte(node, attribute.c_str(), attrViz);
                }
                else
                  AiNodeSetByte(node, attribute.c_str(), val.asInt());
              }
              else 
                AiNodeSetInt(node, attribute.c_str(), val.asInt());
            }
            else if( val.isUInt() ) 
              AiNodeSetUInt(node, attribute.c_str(), val.asUInt());
            else if( val.isDouble() ) 
              AiNodeSetFlt(node, attribute.c_str(), val.asDouble());
          }
        }
      }

   }
}
void ApplyUserAttributes(std::string name, AtNode* node,std::vector<std::string> tags,ProcArgs & args)
{

   bool foundInPath = false;
   for(std::vector<std::string>::iterator it=args.userAttributes.begin(); it!=args.userAttributes.end(); ++it)
   {
      Json::Value userAttributes;                        
      if(it->find("/") != std::string::npos) // Based on path
      {
        if(name.find(*it) != std::string::npos)
        {
          userAttributes = args.userAttributesRoot[*it];
          foundInPath = true;
        }
      } 
      else if(matchPattern(name,*it)) // based on wildcard expression
      {
          userAttributes = args.userAttributesRoot[*it];
          foundInPath = true;
      }
      else if(foundInPath == false)
      {
        if (std::find(tags.begin(), tags.end(), *it) != tags.end())
        {
          userAttributes = args.userAttributesRoot[*it];
        }
      }

      if(userAttributes.size() > 0)
      {
        for( Json::ValueIterator itr = userAttributes.begin() ; itr != userAttributes.end() ; itr++ ) 
        {
            std::string attribute = itr.key().asString();

            if( AiNodeLookUpUserParameter(node,attribute.c_str()))
              continue;

            const AtNodeEntry* nodeEntry = AiNodeGetNodeEntry(node);
            Json::Value val = args.userAttributesRoot[*it][attribute];
            if( val.isString() ) 
            {
              AddUserGeomParams(node,attribute.c_str(),AI_TYPE_STRING);
              AiNodeSetStr(node, attribute.c_str(), val.asCString());
            } 
            else if( val.isBool() ) 
            {
              AddUserGeomParams(node,attribute.c_str(),AI_TYPE_BOOLEAN);
              AiNodeSetBool(node, attribute.c_str(), val.asBool());
            }
            else if( val.isInt() ) 
            {
              AddUserGeomParams(node,attribute.c_str(),AI_TYPE_INT);
              AiNodeSetInt(node, attribute.c_str(), val.asInt());
            }
            else if( val.isUInt() ) 
            {
              AddUserGeomParams(node,attribute.c_str(),AI_TYPE_UINT);
              AiNodeSetUInt(node, attribute.c_str(), val.asUInt());
            }
            else if(val.isDouble())
            {
              AddUserGeomParams(node,attribute.c_str(),AI_TYPE_FLOAT);
              AiNodeSetFlt(node, attribute.c_str(), val.asDouble());
            }
            else if(val.isArray()) 
            {              

              // in the future we will convert to an arnold array type for now lets just 
              // write out a json string

              AddUserGeomParams(node,attribute.c_str(),AI_TYPE_STRING);
              Json::FastWriter writer;
              AiNodeSetStr(node, attribute.c_str(), writer.write(val).c_str());
              
              // AddUserGeomParams(node,attribute.c_str(),AI_TYPE_ARRAY );

              // // get the type of the first entry, this will be our key as to
              // // what type of data is in this array
              // Json::Value firstValue = val[0];
              // if (firstValue.isString())
              // {
              //   AtArray* arrayValues = AiArrayAllocate( val.size() , 1, AI_TYPE_STRING);

              //   for( uint idx = 0 ; idx != val.size() ; idx++ ) 
              //   {
              //     AiMsgInfo("[ABC] adding string %s to user array attribute '%s'",val[idx].asCString(),attribute.c_str());
              //     AiArraySetStr(arrayValues,idx,val[idx].asCString());
              //   }

              //   AiNodeSetArray(node, attribute.c_str(), arrayValues);         
              // }
     
            }

            // TODO color, matrix, vector

         }
      }
   }
}
void AddArbitraryGeomParam( ICompoundProperty & parent,
                            const PropertyHeader &propHeader,
                            ISampleSelector &sampleSelector,
                            AtNode * primNode,
                            int arnoldAPIType)
{
    T param( parent, propHeader.getName() );
    
    if ( !param.valid() )
    {
        //TODO error message?
        return;
    }
    
    std::string declStr = GetArnoldTypeString( param.getScope(),
            arnoldAPIType );
    if ( declStr.empty() )
    {
        return;
    }
    
    // TODO For now, don't support user-defined arrays.
    // It's reasonable to support these for kConstantScope
    if ( param.getArrayExtent() > 1 )
    {
        return;
    }
    
    if ( !AiNodeDeclare( primNode, param.getName().c_str(), declStr.c_str() ) )
    {
        //TODO, AiWarning
        return;
    }
    
    if ( param.getScope() == kConstantScope ||
            param.getScope() == kUnknownScope)
    {
        //Set scalars directly based on arnoldAPIType since we're
        //not yet support array types here
        
        typename T::prop_type::sample_ptr_type valueSample =
                param.getExpandedValue( sampleSelector ).getVals();
        
        switch ( arnoldAPIType )
        {
            case AI_TYPE_INT:
                AiNodeSetInt( primNode, param.getName().c_str(),
                        reinterpret_cast<const int32_t *>(
                                valueSample->get() )[0] );
                
                break;
            case AI_TYPE_FLOAT:
                AiNodeSetFlt( primNode, param.getName().c_str(),
                        reinterpret_cast<const float32_t *>(
                                valueSample->get() )[0] );
                break;
            case AI_TYPE_STRING:
                
                AiNodeSetStr( primNode, param.getName().c_str(),
                        reinterpret_cast<const std::string *>(
                                valueSample->get() )[0].c_str() );
                
                break;
            case AI_TYPE_RGB:
            {
                const float32_t * data = 
                        reinterpret_cast<const float32_t *>(
                                valueSample->get() );
                
                AiNodeSetRGB( primNode, param.getName().c_str(),
                        data[0], data[1], data[2]);
                
                break;
            }
            case AI_TYPE_RGBA:
            {
                const float32_t * data = 
                        reinterpret_cast<const float32_t *>(
                                valueSample->get() );
                
                AiNodeSetRGBA( primNode, param.getName().c_str(),
                        data[0], data[1], data[2], data[3]);
                
                break;
            }
            case AI_TYPE_VECTOR:
            {
                const float32_t * data = 
                        reinterpret_cast<const float32_t *>(
                                valueSample->get() );
                
                AiNodeSetVec( primNode, param.getName().c_str(),
                        data[0], data[1], data[2] );
                
                break;
            }
            case AI_TYPE_VECTOR2:
            {
                const float32_t * data = 
                        reinterpret_cast<const float32_t *>(
                                valueSample->get() );
                
                AiNodeSetVec2( primNode, param.getName().c_str(),
                        data[0], data[1] );
                break;
            }
            case AI_TYPE_MATRIX:
            {
                const float32_t * data = 
                        reinterpret_cast<const float32_t *>(
                                valueSample->get() );
                
                AtMatrix m;
                for ( size_t i = 0; i < 16; ++i )
                {
                    *((&m[0][0])+i) = data[i];
                }
                AiNodeSetMatrix( primNode, param.getName().c_str(), m);
                
                
                break;
            }
            default:
                // For now, only support the above types
                break;
        }
    }
    else
    {
        // Always set arrays for other scopes
        typename T::prop_type::sample_ptr_type valueSample =
                param.getExpandedValue( sampleSelector ).getVals();
        
        AiNodeSetArray( primNode, param.getName().c_str(),
                AiArrayConvert( valueSample->size(), 1, arnoldAPIType,
                        (void *) valueSample->get() ) );
    }
    
    
}
void CScriptedShapeTranslator::RunScripts(AtNode *atNode, unsigned int step, bool update)
{
   std::map<std::string, CScriptedTranslator>::iterator translatorIt;
   MFnDependencyNode fnNode(GetMayaObject());
   
   translatorIt = gTranslators.find(fnNode.typeName().asChar());
   if (translatorIt == gTranslators.end())
   {
      AiMsgError("[mtoa.scriptedTranslators] No command to export node \"%s\" of type %s.", fnNode.name().asChar(), fnNode.typeName().asChar());
      return;
   }
   
   MString exportCmd = translatorIt->second.exportCmd;
   MString cleanupCmd = translatorIt->second.cleanupCmd;
   
   MFnDagNode node(m_dagPath.node());
   
   bool isMasterDag = false;
   bool transformBlur = IsMotionBlurEnabled(MTOA_MBLUR_OBJECT) && IsLocalMotionBlurEnabled();
   bool deformBlur = IsMotionBlurEnabled(MTOA_MBLUR_DEFORM) && IsLocalMotionBlurEnabled();
   
   char buffer[64];
   
   MString command = exportCmd;
   command += "(";
   
   sprintf(buffer, "%f", GetExportFrame());
   command += buffer;
   command += ", ";
   
   sprintf(buffer, "%d", step);
   command += buffer;
   command += ", ";
   
   // current sample frame
   sprintf(buffer, "%f", GetSampleFrame(m_session, step));
   command += buffer;
   command += ", ";
   
   // List of arnold attributes the custom shape export command has overriden
   MStringArray attrs;
   
   if (!m_masterNode)
   {
      command += "(\"" + m_dagPath.partialPathName() + "\", \"";
      command += AiNodeGetName(atNode);
      command += "\"), None)";
      isMasterDag = true;
   }
   else
   {
      command += "(\"" + m_dagPath.partialPathName() + "\", \"";
      command += AiNodeGetName(atNode);
      command += "\"), (\"" + GetMasterInstance().partialPathName() + "\", \"";
      command += AiNodeGetName(m_masterNode);
      command += "\"))";
   }
   
   MStatus status = MGlobal::executePythonCommand(command, attrs);
   if (!status)
   {
      AiMsgError("[mtoa.scriptedTranslators] Failed to export node \"%s\".", node.name().asChar());
      return;
   }
   
   // Build set of attributes already processed
   std::set<std::string> attrsSet;
   for (unsigned int i=0; i<attrs.length(); ++i)
   {
      attrsSet.insert(attrs[i].asChar());
   }
   std::set<std::string>::iterator attrsEnd = attrsSet.end();
   
   // Should be getting displacement shader from master instance only
   //   as arnold do not support displacement shader overrides for ginstance
   MFnDependencyNode masterShadingEngine;
   MFnDependencyNode shadingEngine;
   float dispPadding = -AI_BIG;
   float dispHeight = 1.0f;
   float dispZeroValue = 0.0f;
   bool dispAutobump = false;
   bool outputDispPadding = false;
   bool outputDispHeight = false;
   bool outputDispZeroValue = false;
   bool outputDispAutobump = false;
   
   const AtNodeEntry *anodeEntry = AiNodeGetNodeEntry(atNode);
   
   GetShapeInstanceShader(m_dagPath, shadingEngine);
   if (!IsMasterInstance())
   {
      GetShapeInstanceShader(GetMasterInstance(), masterShadingEngine);
   }
   else
   {
      masterShadingEngine.setObject(shadingEngine.object());
   }
   
   AtMatrix matrix;
   MMatrix mmatrix = m_dagPath.inclusiveMatrix();
   ConvertMatrix(matrix, mmatrix);
   
   // Set transformation matrix
   if (attrsSet.find("matrix") == attrsEnd)
   {
      if (HasParameter(anodeEntry, "matrix"))
      {
         if (transformBlur)
         {
            if (step == 0)
            {
               AtArray* matrices = AiArrayAllocate(1, GetNumMotionSteps(), AI_TYPE_MATRIX);
               AiArraySetMtx(matrices, step, matrix);
               AiNodeSetArray(atNode, "matrix", matrices);
            }
            else
            {
               AtArray* matrices = AiNodeGetArray(atNode, "matrix");
               AiArraySetMtx(matrices, step, matrix);
            }
         }
         else
         {
            AiNodeSetMatrix(atNode, "matrix", matrix);
         }
      }
   }
   
   // Set bounding box
   if (attrsSet.find("min") == attrsEnd && attrsSet.find("max") == attrsEnd)
   {
      // Now check if min and max parameters are valid parameter names on arnold node
      if (HasParameter(anodeEntry, "min") != 0 && HasParameter(anodeEntry, "max") != 0)
      {
         if (step == 0)
         {
            MBoundingBox bbox = node.boundingBox();
            
            MPoint bmin = bbox.min();
            MPoint bmax = bbox.max();
            
            AiNodeSetPnt(atNode, "min", static_cast<float>(bmin.x), static_cast<float>(bmin.y), static_cast<float>(bmin.z));
            AiNodeSetPnt(atNode, "max", static_cast<float>(bmax.x), static_cast<float>(bmax.y), static_cast<float>(bmax.z));
         }
         else
         {
            if (transformBlur || deformBlur)
            {
               AtPoint cmin = AiNodeGetPnt(atNode, "min");
               AtPoint cmax = AiNodeGetPnt(atNode, "max");
               
               MBoundingBox bbox = node.boundingBox();
               
               MPoint bmin = bbox.min();
               MPoint bmax = bbox.max();
               
               if (bmin.x < cmin.x)
                  cmin.x = static_cast<float>(bmin.x);
               if (bmin.y < cmin.y)
                  cmin.y = static_cast<float>(bmin.y);
               if (bmin.z < cmin.z)
                  cmin.z = static_cast<float>(bmin.z);
               if (bmax.x > cmax.x)
                  cmax.x = static_cast<float>(bmax.x);
               if (bmax.y > cmax.y)
                  cmax.y = static_cast<float>(bmax.y);
               if (bmax.z > cmax.z)
                  cmax.z = static_cast<float>(bmax.z);
               
               AiNodeSetPnt(atNode, "min", cmin.x, cmin.y, cmin.z);
               AiNodeSetPnt(atNode, "max", cmax.x, cmax.y, cmax.z);
            }
         }
      }
   }
   
   if (step == 0)
   {
      // Set common attributes
      MPlug plug;
      
      if (AiNodeIs(atNode, "procedural"))
      {
         // Note: it is up to the procedural to properly forward (or not) those parameters to the node
         //       it creates
         
         if (attrsSet.find("subdiv_type") == attrsEnd)
         {
            plug = FindMayaPlug("subdiv_type");
            if (plug.isNull())
            {
               plug = FindMayaPlug("aiSubdivType");
            }
            if (!plug.isNull() && HasParameter(anodeEntry, "subdiv_type", atNode, "constant INT"))
            {
               AiNodeSetInt(atNode, "subdiv_type", plug.asInt());
            }
         }
         
         if (attrsSet.find("subdiv_iterations") == attrsEnd)
         {
            plug = FindMayaPlug("subdiv_iterations");
            if (plug.isNull())
            {
               plug = FindMayaPlug("aiSubdivIterations");
            }
            if (!plug.isNull() && HasParameter(anodeEntry, "subdiv_iterations", atNode, "constant BYTE"))
            {
               AiNodeSetByte(atNode, "subdiv_iterations", plug.asInt());
            }
         }
         
         if (attrsSet.find("subdiv_adaptive_metric") == attrsEnd)
         {
            plug = FindMayaPlug("subdiv_adaptive_metric");
            if (plug.isNull())
            {
               plug = FindMayaPlug("aiSubdivAdaptiveMetric");
            }
            if (!plug.isNull() && HasParameter(anodeEntry, "subdiv_adaptive_metric", atNode, "constant INT"))
            {
               AiNodeSetInt(atNode, "subdiv_adaptive_metric", plug.asInt());
            }
         }
         
         if (attrsSet.find("subdiv_pixel_error") == attrsEnd)
         {
            plug = FindMayaPlug("subdiv_pixel_error");
            if (plug.isNull())
            {
               plug = FindMayaPlug("aiSubdivPixelError");
            }
            if (!plug.isNull() && HasParameter(anodeEntry, "subdiv_pixel_error", atNode, "constant FLOAT"))
            {
               AiNodeSetFlt(atNode, "subdiv_pixel_error", plug.asFloat());
            }
         }
         
         if (attrsSet.find("subdiv_dicing_camera") == attrsEnd)
         {
            plug = FindMayaPlug("subdiv_dicing_camera");
            if (plug.isNull())
            {
               plug = FindMayaPlug("aiSubdivDicingCamera");
            }
            if (!plug.isNull() && HasParameter(anodeEntry, "subdiv_dicing_camera", atNode, "constant NODE"))
            {
               AtNode *cameraNode = NULL;
               
               MPlugArray plugs;
               plug.connectedTo(plugs, true, false);
               
               if (plugs.length() == 1)
               {
                  MFnDagNode camDag(plugs[0].node());
                  MDagPath camPath;
                  
                  if (camDag.getPath(camPath) == MS::kSuccess)
                  {
                     cameraNode = ExportDagPath(camPath);
                  }
               }
               
               AiNodeSetPtr(atNode, "subdiv_dicing_camera", cameraNode);
            }
         }
         
         if (attrsSet.find("subdiv_uv_smoothing") == attrsEnd)
         {
            plug = FindMayaPlug("subdiv_uv_smoothing");
            if (plug.isNull())
            {
               plug = FindMayaPlug("aiSubdivUvSmoothing");
            }
            if (!plug.isNull() && HasParameter(anodeEntry, "subdiv_uv_smoothing", atNode, "constant INT"))
            {
               AiNodeSetInt(atNode, "subdiv_uv_smoothing", plug.asInt());
            }
         }
         
         if (attrsSet.find("subdiv_smooth_derivs") == attrsEnd)
         {
            plug = FindMayaPlug("aiSubdivSmoothDerivs");
            if (!plug.isNull() && HasParameter(anodeEntry, "subdiv_smooth_derivs", atNode, "constant BOOL"))
            {
               AiNodeSetBool(atNode, "subdiv_smooth_derivs", plug.asBool());
            }
         }
         
         if (attrsSet.find("smoothing") == attrsEnd)
         {
            // Use maya shape built-in attribute
            plug = FindMayaPlug("smoothShading");
            if (!plug.isNull() && HasParameter(anodeEntry, "smoothing", atNode, "constant BOOL"))
            {
               AiNodeSetBool(atNode, "smoothing", plug.asBool());
            }
         }
         
         if (attrsSet.find("disp_height") == attrsEnd)
         {
            plug = FindMayaPlug("aiDispHeight");
            if (!plug.isNull())
            {
               outputDispHeight = true;
               dispHeight = plug.asFloat();
            }
         }
         
         if (attrsSet.find("disp_zero_value") == attrsEnd)
         {
            plug = FindMayaPlug("aiDispZeroValue");
            if (!plug.isNull())
            {
               outputDispZeroValue = true;
               dispZeroValue = plug.asFloat();
            }
         }
         
         if (attrsSet.find("disp_autobump") == attrsEnd)
         {
            plug = FindMayaPlug("aiDispAutobump");
            if (!plug.isNull())
            {
               outputDispAutobump = true;
               dispAutobump = plug.asBool();
            }
         }
         
         if (attrsSet.find("disp_padding") == attrsEnd)
         {
            plug = FindMayaPlug("aiDispPadding");
            if (!plug.isNull())
            {
               outputDispPadding = true;
               dispPadding = MAX(dispPadding, plug.asFloat());
            }
         }
         
         // Set diplacement shader
         if (attrsSet.find("disp_map") == attrsEnd)
         {
            if (masterShadingEngine.object() != MObject::kNullObj)
            {
               MPlugArray shaderConns;
               
               MPlug shaderPlug = masterShadingEngine.findPlug("displacementShader");
               
               shaderPlug.connectedTo(shaderConns, true, false);
               
               if (shaderConns.length() > 0)
               {
                  MFnDependencyNode dispNode(shaderConns[0].node());
                  
                  plug = dispNode.findPlug("aiDisplacementPadding");
                  if (!plug.isNull())
                  {
                     outputDispPadding = true;
                     dispPadding = MAX(dispPadding, plug.asFloat());
                  }
                  
                  plug = dispNode.findPlug("aiDisplacementAutoBump");
                  if (!plug.isNull())
                  {
                     outputDispAutobump = true;
                     dispAutobump = dispAutobump || plug.asBool();
                  }
                  
                  if (HasParameter(anodeEntry, "disp_map", atNode, "constant ARRAY NODE"))
                  {
                     AtNode *dispImage = ExportNode(shaderConns[0]);
                     AiNodeSetArray(atNode, "disp_map", AiArrayConvert(1, 1, AI_TYPE_NODE, &dispImage));
                  }
               }
            }
         }
         
         if (outputDispHeight && HasParameter(anodeEntry, "disp_height", atNode, "constant FLOAT"))
         {
            AiNodeSetFlt(atNode, "disp_height", dispHeight);
         }
         if (outputDispZeroValue && HasParameter(anodeEntry, "disp_zero_value", atNode, "constant FLOAT"))
         {
            AiNodeSetFlt(atNode, "disp_zero_value", dispZeroValue);
         }
         if (outputDispPadding && HasParameter(anodeEntry, "disp_padding", atNode, "constant FLOAT"))
         {
            AiNodeSetFlt(atNode, "disp_padding", dispPadding);
         }
         if (outputDispAutobump && HasParameter(anodeEntry, "disp_autobump", atNode, "constant BOOL"))
         {
            AiNodeSetBool(atNode, "disp_autobump", dispAutobump);
         }
         
         // Old point based SSS parameter
         if (attrsSet.find("sss_sample_distribution") == attrsEnd)
         {
            plug = FindMayaPlug("sss_sample_distribution");
            if (plug.isNull())
            {
               plug = FindMayaPlug("aiSssSampleDistribution");
            }
            if (!plug.isNull() && HasParameter(anodeEntry, "sss_sample_distribution", atNode, "constant INT"))
            {
               AiNodeSetInt(atNode, "sss_sample_distribution", plug.asInt());
            }
         }
         
         // Old point based SSS parameter
         if (attrsSet.find("sss_sample_spacing") == attrsEnd)
         {
            plug = FindMayaPlug("sss_sample_spacing");
            if (plug.isNull())
            {
               plug = FindMayaPlug("aiSssSampleSpacing");
            }
            if (!plug.isNull() && HasParameter(anodeEntry, "sss_sample_spacing", atNode, "constant FLOAT"))
            {
               AiNodeSetFlt(atNode, "sss_sample_spacing", plug.asFloat());
            }
         }
         
         if (attrsSet.find("min_pixel_width") == attrsEnd)
         {
            plug = FindMayaPlug("aiMinPixelWidth");
            if (!plug.isNull() && HasParameter(anodeEntry, "min_pixel_width", atNode, "constant FLOAT"))
            {
               AiNodeSetFlt(atNode, "min_pixel_width", plug.asFloat());
            }
         }
         
         if (attrsSet.find("mode") == attrsEnd)
         {
            plug = FindMayaPlug("aiMode");
            if (!plug.isNull() && HasParameter(anodeEntry, "mode", atNode, "constant INT"))
            {
               AiNodeSetInt(atNode, "mode", plug.asShort());
            }
         }
         
         if (attrsSet.find("basis") == attrsEnd)
         {
            plug = FindMayaPlug("aiBasis");
            if (!plug.isNull() && HasParameter(anodeEntry, "basis", atNode, "constant INT"))
            {
               AiNodeSetInt(atNode, "basis", plug.asShort());
            }
         }
      }
      
      if (AiNodeIs(atNode, "ginstance"))
      {
         if (attrsSet.find("node") == attrsEnd)
         {
            AiNodeSetPtr(atNode, "node", m_masterNode);
         }
         
         if (attrsSet.find("inherit_xform") == attrsEnd)
         {
            AiNodeSetBool(atNode, "inherit_xform", false);
         }
      }
      else
      {
         // box or procedural
         if (attrsSet.find("step_size") == attrsEnd)
         {
            plug = FindMayaPlug("step_size");
            if (plug.isNull())
            {
               plug = FindMayaPlug("aiStepSize");
            }
            if (!plug.isNull() && HasParameter(anodeEntry, "step_size", atNode, "constant FLOAT"))
            {
               AiNodeSetFlt(atNode, "step_size", plug.asFloat());
            }
         }
      }
      
      if (attrsSet.find("sidedness") == attrsEnd)
      {
         // Use maya shape built-in attribute
         plug = FindMayaPlug("doubleSided");
         if (!plug.isNull() && HasParameter(anodeEntry, "sidedness", atNode, "constant BYTE"))
         {
            AiNodeSetByte(atNode, "sidedness", plug.asBool() ? AI_RAY_ALL : 0);
            
            // Only set invert_normals if doubleSided attribute could be found
            if (!plug.asBool() && attrsSet.find("invert_normals") == attrsEnd)
            {
               // Use maya shape built-in attribute
               plug = FindMayaPlug("opposite");
               if (!plug.isNull() && HasParameter(anodeEntry, "invert_normals", atNode, "constant BOOL"))
               {
                  AiNodeSetBool(atNode, "invert_normals", plug.asBool());
               }
            }
         }
      }
      
      if (attrsSet.find("receive_shadows") == attrsEnd)
      {
         // Use maya shape built-in attribute
         plug = FindMayaPlug("receiveShadows");
         if (!plug.isNull() && HasParameter(anodeEntry, "receive_shadows", atNode, "constant BOOL"))
         {
            AiNodeSetBool(atNode, "receive_shadows", plug.asBool());
         }
      }
      
      if (attrsSet.find("self_shadows") == attrsEnd)
      {
         plug = FindMayaPlug("self_shadows");
         if (plug.isNull())
         {
            plug = FindMayaPlug("aiSelfShadows");
         }
         if (!plug.isNull() && HasParameter(anodeEntry, "self_shadows", atNode, "constant BOOL"))
         {
            AiNodeSetBool(atNode, "self_shadows", plug.asBool());
         }
      }
      
      if (attrsSet.find("opaque") == attrsEnd)
      {
         plug = FindMayaPlug("opaque");
         if (plug.isNull())
         {
            plug = FindMayaPlug("aiOpaque");
         }
         if (!plug.isNull() && HasParameter(anodeEntry, "opaque", atNode, "constant BOOL"))
         {
            AiNodeSetBool(atNode, "opaque", plug.asBool());
         }
      }
      
      if (attrsSet.find("visibility") == attrsEnd)
      {
         if (HasParameter(anodeEntry, "visibility", atNode, "constant BYTE"))
         {
            int visibility = AI_RAY_ALL;
            
            // Use maya shape built-in attribute
            plug = FindMayaPlug("castsShadows");
            if (!plug.isNull() && !plug.asBool())
            {
               visibility &= ~AI_RAY_SHADOW;
            }
            
            // Use maya shape built-in attribute
            plug = FindMayaPlug("primaryVisibility");
            if (!plug.isNull() && !plug.asBool())
            {
               visibility &= ~AI_RAY_CAMERA;
            }
            
            // Use maya shape built-in attribute
            plug = FindMayaPlug("visibleInReflections");
            if (!plug.isNull() && !plug.asBool())
            {
               visibility &= ~AI_RAY_REFLECTED;
            }
            
            // Use maya shape built-in attribute
            plug = FindMayaPlug("visibleInRefractions");
            if (!plug.isNull() && !plug.asBool())
            {
               visibility &= ~AI_RAY_REFRACTED;
            }
            
            plug = FindMayaPlug("diffuse_visibility");
            if (plug.isNull())
            {
               plug = FindMayaPlug("aiVisibleInDiffuse");
            }
            if (!plug.isNull() && !plug.asBool())
            {
               visibility &= ~AI_RAY_DIFFUSE;
            }
            
            plug = FindMayaPlug("glossy_visibility");
            if (plug.isNull())
            {
               plug = FindMayaPlug("aiVisibleInGlossy");
            }
            if (!plug.isNull() && !plug.asBool())
            {
               visibility &= ~AI_RAY_GLOSSY;
            }
            
            AiNodeSetByte(atNode, "visibility", visibility & 0xFF);
         }
      }
      
      if (attrsSet.find("sss_setname") == attrsEnd)
      {
         plug = FindMayaPlug("aiSssSetname");
         if (!plug.isNull() && plug.asString().length() > 0)
         {
            if (HasParameter(anodeEntry, "sss_setname", atNode, "constant STRING"))
            {
               AiNodeSetStr(atNode, "sss_setname", plug.asString().asChar());
            }
         }
      }
      
      // Set surface shader
      if (HasParameter(anodeEntry, "shader", atNode, "constant NODE"))
      {
         if (attrsSet.find("shader") == attrsEnd)
         {
            if (shadingEngine.object() != MObject::kNullObj)
            {
               AtNode *shader = ExportNode(shadingEngine.findPlug("message"));
               if (shader != NULL)
               {
                  const AtNodeEntry *entry = AiNodeGetNodeEntry(shader);
                  
                  if (AiNodeEntryGetType(entry) != AI_NODE_SHADER)
                  {
                     MGlobal::displayWarning("[mtoaScriptedTranslators] Node generated from \"" + shadingEngine.name() +
                                             "\" of type " + shadingEngine.typeName() + " for shader is not a shader but a " +
                                             MString(AiNodeEntryGetTypeName(entry)));
                  }
                  else
                  {
                     AiNodeSetPtr(atNode, "shader", shader);
                     
                     if (AiNodeLookUpUserParameter(atNode, "mtoa_shading_groups") == 0)
                     {
                        AiNodeDeclare(atNode, "mtoa_shading_groups", "constant ARRAY NODE");
                        AiNodeSetArray(atNode, "mtoa_shading_groups", AiArrayConvert(1, 1, AI_TYPE_NODE, &shader));
                     }
                  }
               }
            }
         }
      }
   }
   
   ExportLightLinking(atNode);
   
   MPlug plug = FindMayaPlug("aiTraceSets");
   if (!plug.isNull())
   {
      ExportTraceSets(atNode, plug);
   }
   
   // Call cleanup command on last export step
   
   if (!IsMotionBlurEnabled() || !IsLocalMotionBlurEnabled() || int(step) >= (int(GetNumMotionSteps()) - 1))
   {
      if (HasParameter(anodeEntry, "disp_padding", atNode))
      {
         float padding = AiNodeGetFlt(atNode, "disp_padding");
         
         AtPoint cmin = AiNodeGetPnt(atNode, "min");
         AtPoint cmax = AiNodeGetPnt(atNode, "max");
         
         cmin.x -= padding;
         cmin.y -= padding;
         cmin.z -= padding;
         cmax.x += padding;
         cmax.y += padding;
         cmax.z += padding;
         
         AiNodeSetPnt(atNode, "min", cmin.x, cmin.y, cmin.z);
         AiNodeSetPnt(atNode, "max", cmax.x, cmax.y, cmax.z);
      }
      
      if (cleanupCmd != "")
      {
         command = cleanupCmd += "((\"" + m_dagPath.partialPathName() + "\", \"";
         command += AiNodeGetName(atNode);
         command += "\"), ";
         
         if (!m_masterNode)
         {
            command += "None)";
         }
         else
         {
            command += "(\"" + GetMasterInstance().partialPathName() + "\", \"";
            command += AiNodeGetName(m_masterNode);
            command += "\"))";
         }
         
         status = MGlobal::executePythonCommand(command);
         
         if (!status)
         {
            AiMsgError("[mtoa.scriptedTranslators] Failed to cleanup node \"%s\".", node.name().asChar());
         }
      }
   }
}
示例#5
0
AtNode *createCurvesNode(nodeData &nodata, userData * ud, std::vector<float> &samples, int i)
{
  Alembic::AbcGeom::ICurves typedObject(nodata.object, Alembic::Abc::kWrapExisting);
  size_t minNumSamples = typedObject.getSchema().getNumSamples() == 1 ? typedObject.getSchema().getNumSamples() : samples.size();

  shiftedProcessing(nodata, ud);

  AtNode *shapeNode = AiNode("curves");
  nodata.createdShifted = false;

  // create arrays to hold the data
  AtArray *pos = NULL;

  // loop over all samples
  AtULong posOffset = 0;
  size_t totalNumPoints =  0;
  size_t totalNumPositions = 0;
  for(size_t sampleIndex = 0; sampleIndex < minNumSamples; ++sampleIndex)
  {
    SampleInfo sampleInfo = getSampleInfo(
      samples[sampleIndex],
      typedObject.getSchema().getTimeSampling(),
      typedObject.getSchema().getNumSamples()
    );

    // get the floor sample
    Alembic::AbcGeom::ICurvesSchema::Sample sample;
    typedObject.getSchema().get(sample,sampleInfo.floorIndex);

    // access the num points
    Alembic::Abc::Int32ArraySamplePtr abcNumPoints = sample.getCurvesNumVertices();

    // take care of the topology
    if(sampleIndex == 0)
    {
      // hard coded pixel width, basis and mode
      AiNodeSetFlt(shapeNode, "min_pixel_width", 0.25f);
      AiNodeSetStr(shapeNode, "basis", "catmull-rom");
      AiNodeSetStr(shapeNode, "mode", ud->gCurvesMode.c_str());

      // setup the num_points
      AtArray * numPoints = AiArrayAllocate((AtInt)abcNumPoints->size(),1,AI_TYPE_UINT);
      for(size_t i=0;i<abcNumPoints->size();i++)
      {
        totalNumPoints += abcNumPoints->get()[i];
        totalNumPositions += abcNumPoints->get()[i] + 2;
        AiArraySetUInt(numPoints,(AtULong)i,(AtUInt)(abcNumPoints->get()[i]+2));
      }
      AiNodeSetArray(shapeNode,"num_points",numPoints);

      // check if we have a radius
      Alembic::Abc::IFloatArrayProperty propRadius;
			if( getArbGeomParamPropertyAlembic( typedObject, "radius", propRadius ) )
      {
        Alembic::Abc::FloatArraySamplePtr abcRadius = propRadius.getValue(sampleInfo.floorIndex);

        AtArray * radius = AiArrayAllocate((AtInt)abcRadius->size(),1,AI_TYPE_FLOAT);
        for(size_t i=0; i < abcRadius->size(); ++i)
          AiArraySetFlt(radius,(AtULong)i,abcRadius->get()[i]);
        AiNodeSetArray(shapeNode,"radius",radius);
      }

      // check if we have uvs
      Alembic::AbcGeom::IV2fGeomParam uvsParam = typedObject.getSchema().getUVsParam();
      if(uvsParam.valid())
      {
        Alembic::Abc::V2fArraySamplePtr abcUvs = uvsParam.getExpandedValue(sampleInfo.floorIndex).getVals();
        if(AiNodeDeclare(shapeNode, "Texture_Projection", "uniform POINT2"))
        {
          AtArray* uvs = AiArrayAllocate((AtInt)abcUvs->size(), 1, AI_TYPE_POINT2);
          AtPoint2 uv;
          for(size_t i=0; i<abcUvs->size(); i++)
          {
            uv.x = abcUvs->get()[i].x;
            uv.y = abcUvs->get()[i].y;
            AiArraySetPnt2(uvs, (AtULong)i, uv);
          }
          AiNodeSetArray(shapeNode, "Texture_Projection", uvs);
        }
      }

      // check if we have colors
      Alembic::Abc::IC4fArrayProperty propColor;
			if( getArbGeomParamPropertyAlembic( typedObject, "color", propColor ) )
      {
        Alembic::Abc::C4fArraySamplePtr abcColors = propColor.getValue(sampleInfo.floorIndex);
        AtBoolean result = false;
        if(abcColors->size() == 1)
          result = AiNodeDeclare(shapeNode, "Color", "constant RGBA");
        else if(abcColors->size() == abcNumPoints->size())
          result = AiNodeDeclare(shapeNode, "Color", "uniform RGBA");
        else
          result = AiNodeDeclare(shapeNode, "Color", "varying RGBA");

        if(result)
        {
          AtArray * colors = AiArrayAllocate((AtInt)abcColors->size(), 1, AI_TYPE_RGBA);
          AtRGBA color;
          for(size_t i=0; i<abcColors->size(); ++i)
          {
            color.r = abcColors->get()[i].r;
            color.g = abcColors->get()[i].g;
            color.b = abcColors->get()[i].b;
            color.a = abcColors->get()[i].a;
            AiArraySetRGBA(colors, (AtULong)i, color);
          }
          AiNodeSetArray(shapeNode, "Color", colors);
        }
      }
    }

    // access the positions
    Alembic::Abc::P3fArraySamplePtr abcPos = sample.getPositions();
    if(pos == NULL)
      pos = AiArrayAllocate((AtInt)(totalNumPositions * 3),(AtInt)minNumSamples,AI_TYPE_FLOAT);

    // if we have to interpolate
    bool done = false;
    if(sampleInfo.alpha > sampleTolerance)
    {
      Alembic::AbcGeom::ICurvesSchema::Sample sample2;
      typedObject.getSchema().get(sample2,sampleInfo.ceilIndex);
      Alembic::Abc::P3fArraySamplePtr abcPos2 = sample2.getPositions();
      float alpha = (float)sampleInfo.alpha;
      float ialpha = 1.0f - alpha;
      size_t offset = 0;
      if(abcPos2->size() == abcPos->size())
      {
        for(size_t i=0; i<abcNumPoints->size(); ++i)
        {
          // add the first and last point manually (catmull clark)
          for(size_t j=0; j<abcNumPoints->get()[i]; ++j)
          {
            AiArraySetFlt(pos,posOffset++,abcPos->get()[offset].x * ialpha + abcPos2->get()[offset].x * alpha);
            AiArraySetFlt(pos,posOffset++,abcPos->get()[offset].y * ialpha + abcPos2->get()[offset].y * alpha);
            AiArraySetFlt(pos,posOffset++,abcPos->get()[offset].z * ialpha + abcPos2->get()[offset].z * alpha);
            if(j==0 || j == abcNumPoints->get()[i]-1)
            {
              AiArraySetFlt(pos,posOffset++,abcPos->get()[offset].x * ialpha + abcPos2->get()[offset].x * alpha);
              AiArraySetFlt(pos,posOffset++,abcPos->get()[offset].y * ialpha + abcPos2->get()[offset].y * alpha);
              AiArraySetFlt(pos,posOffset++,abcPos->get()[offset].z * ialpha + abcPos2->get()[offset].z * alpha);
            }
            ++offset;
          }
        }
        done = true;
      }
      else
      {
        Alembic::Abc::P3fArraySamplePtr abcVel = sample.getPositions();
        if(abcVel)
        {
          if(abcVel->size() == abcPos->size())
          {
            for(size_t i=0; i<abcNumPoints->size(); ++i)
            {
              // add the first and last point manually (catmull clark)
              for(size_t j=0; j<abcNumPoints->get()[i]; ++j)
              {
                AiArraySetFlt(pos,posOffset++,abcPos->get()[offset].x + abcVel->get()[offset].x * alpha);
                AiArraySetFlt(pos,posOffset++,abcPos->get()[offset].y + abcVel->get()[offset].y * alpha);
                AiArraySetFlt(pos,posOffset++,abcPos->get()[offset].z + abcVel->get()[offset].z * alpha);
                if(j==0 || j == abcNumPoints->get()[i]-1)
                {
                  AiArraySetFlt(pos,posOffset++,abcPos->get()[offset].x + abcVel->get()[offset].x * alpha);
                  AiArraySetFlt(pos,posOffset++,abcPos->get()[offset].y + abcVel->get()[offset].y * alpha);
                  AiArraySetFlt(pos,posOffset++,abcPos->get()[offset].z + abcVel->get()[offset].z * alpha);
                }
                ++offset;
              }
            }
            done = true;
          }
        }
      }
    }

    if(!done)
    {
      size_t offset = 0;
      for(size_t i=0; i<abcNumPoints->size(); ++i)
      {
        // add the first and last point manually (catmull clark)
        for(size_t j=0; j<abcNumPoints->get()[i]; ++j)
        {
          AiArraySetFlt(pos,posOffset++,abcPos->get()[offset].x);
          AiArraySetFlt(pos,posOffset++,abcPos->get()[offset].y);
          AiArraySetFlt(pos,posOffset++,abcPos->get()[offset].z);
          if(j==0 || j == abcNumPoints->get()[i]-1)
          {
            AiArraySetFlt(pos,posOffset++,abcPos->get()[offset].x);
            AiArraySetFlt(pos,posOffset++,abcPos->get()[offset].y);
            AiArraySetFlt(pos,posOffset++,abcPos->get()[offset].z);
          }
          ++offset;
        }
      }
    }
  }

  AiNodeSetArray(shapeNode, "points", pos);
  return shapeNode;
}
                virtual void ExportUserAttrs( AtNode *node )
                {
                        // Get the optional attributes and export them as user vars

                        MPlug plug = FindMayaObjectPlug( "shaderAssignation" );
                        if( !plug.isNull() )
                        {
                                AiNodeDeclare( node, "shaderAssignation", "constant STRING" );
                                AiNodeSetStr( node, "shaderAssignation", plug.asString().asChar() );
                        }

                        plug = FindMayaObjectPlug( "displacementAssignation" );
                        if( !plug.isNull() )
                        {
                                AiNodeDeclare( node, "displacementAssignation", "constant STRING" );
                                AiNodeSetStr( node, "displacementAssignation", plug.asString().asChar() );
                        }

                        plug = FindMayaObjectPlug( "shaderAssignmentfile" );
                        if( !plug.isNull() )
                        {
                                AiNodeDeclare( node, "shaderAssignmentfile", "constant STRING" );
                                AiNodeSetStr( node, "shaderAssignmentfile", plug.asString().asChar() );
                        }

                        plug = FindMayaObjectPlug( "overrides" );
                        if( !plug.isNull() )
                        {
                                AiNodeDeclare( node, "overrides", "constant STRING" );
                                AiNodeSetStr( node, "overrides", plug.asString().asChar() );
                        }

                        plug = FindMayaObjectPlug( "overridefile" );
                        if( !plug.isNull() )
                        {
                                AiNodeDeclare( node, "overridefile", "constant STRING" );
                                AiNodeSetStr( node, "overridefile", plug.asString().asChar() );
                        }

                        plug = FindMayaObjectPlug( "userAttributes" );
                        if( !plug.isNull() )
                        {
                                AiNodeDeclare( node, "userAttributes", "constant STRING" );
                                AiNodeSetStr( node, "userAttributes", plug.asString().asChar() );
                        }

                        plug = FindMayaObjectPlug( "userAttributesfile" );
                        if( !plug.isNull() )
                        {
                                AiNodeDeclare( node, "userAttributesfile", "constant STRING" );
                                AiNodeSetStr( node, "userAttributesfile", plug.asString().asChar() );
                        }

                        plug = FindMayaObjectPlug( "skipJson" );
                        if( !plug.isNull() )
                        {
                                AiNodeDeclare( node, "skipJson", "constant BOOL" );   
                                AiNodeSetBool( node, "skipJson", plug.asBool() );
                        }

                        plug = FindMayaObjectPlug( "skipShaders" );
                        if( !plug.isNull() )
                        {
                                AiNodeDeclare( node, "skipShaders", "constant BOOL" );   
                                AiNodeSetBool( node, "skipShaders", plug.asBool() );
                        }

                        plug = FindMayaObjectPlug( "skipOverrides" );
                        if( !plug.isNull() )
                        {
                                AiNodeDeclare( node, "skipOverrides", "constant BOOL" );   
                                AiNodeSetBool( node, "skipOverrides", plug.asBool() );
                        }

                        plug = FindMayaObjectPlug( "skipUserAttributes" );
                        if( !plug.isNull() )
                        {
                                AiNodeDeclare( node, "skipUserAttributes", "constant BOOL" );   
                                AiNodeSetBool( node, "skipUserAttributes", plug.asBool() );
                        }

                        plug = FindMayaObjectPlug( "skipDisplacements" );
                        if( !plug.isNull() )
                        {
                                AiNodeDeclare( node, "skipDisplacements", "constant BOOL" );                          
                                AiNodeSetBool( node, "skipDisplacements", plug.asBool() );
                        }

                        plug = FindMayaObjectPlug( "objectPattern" );
                        if( !plug.isNull() )
                        {
                                AiNodeDeclare( node, "objectPattern", "constant STRING" );
                                AiNodeSetStr( node, "objectPattern", plug.asString().asChar() );
                        }                       
                        
                        plug = FindMayaObjectPlug( "assShaders" );
                        if( !plug.isNull() )
                        {
                                AiNodeDeclare( node, "assShaders", "constant STRING" );
                                AiNodeSetStr( node, "assShaders", plug.asString().asChar() );
                        }

                        plug = FindMayaObjectPlug( "radiusPoint" );
                        if( !plug.isNull() )
                        {
                                AiNodeDeclare( node, "radiusPoint", "constant FLOAT" );
                                AiNodeSetFlt( node, "radiusPoint", plug.asFloat() );
                        }

                        plug = FindMayaObjectPlug( "radiusCurve" );
                        if( !plug.isNull() )
                        {
                                AiNodeDeclare( node, "radiusCurve", "constant FLOAT" );
                                AiNodeSetFlt( node, "radiusCurve", plug.asFloat() );
                        }

                        plug = FindMayaObjectPlug( "modeCurve" );
                        if( !plug.isNull() )
                        {
                                AiNodeDeclare( node, "modeCurve", "constant STRING" );

                                int modeCurveInt = plug.asInt();

                                if (modeCurveInt == 1)
                                   AiNodeSetStr(node, "modeCurve", "thick");
                                else if (modeCurveInt == 2)
                                   AiNodeSetStr(node, "modeCurve", "oriented");
                                else
                                   AiNodeSetStr(node, "modeCurve", "ribbon");                               
                        }

                        plug = FindMayaObjectPlug( "scaleVelocity" );
                        if( !plug.isNull() )
                        {
                                AiNodeDeclare( node, "scaleVelocity", "constant FLOAT" );
                                AiNodeSetFlt( node, "scaleVelocity", plug.asFloat() );
                        }

                }