9969167c2a
Rather than removing all backslashes followed by newlines from the buffer, and then parsing it. Handle removing the backslashes as we go. This means we don't need to erase the backslashes from the buffer (which is O(n)) instead we just skip those characters as we parse the buffer line by line.
785 lines
25 KiB
C++
785 lines
25 KiB
C++
/*
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---------------------------------------------------------------------------
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Open Asset Import Library (assimp)
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---------------------------------------------------------------------------
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Copyright (c) 2006-2016, assimp team
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All rights reserved.
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Redistribution and use of this software in source and binary forms,
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with or without modification, are permitted provided that the following
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conditions are met:
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* Redistributions of source code must retain the above
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copyright notice, this list of conditions and the
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following disclaimer.
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* Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the
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following disclaimer in the documentation and/or other
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materials provided with the distribution.
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* Neither the name of the assimp team, nor the names of its
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contributors may be used to endorse or promote products
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derived from this software without specific prior
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written permission of the assimp team.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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---------------------------------------------------------------------------
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*/
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#ifndef ASSIMP_BUILD_NO_OBJ_IMPORTER
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#include "ObjFileParser.h"
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#include "ObjFileMtlImporter.h"
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#include "ObjTools.h"
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#include "ObjFileData.h"
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#include "ParsingUtils.h"
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#include "DefaultIOSystem.h"
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#include "BaseImporter.h"
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#include <assimp/DefaultLogger.hpp>
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#include <assimp/material.h>
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#include <assimp/Importer.hpp>
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#include <cstdlib>
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namespace Assimp {
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const std::string ObjFileParser::DEFAULT_MATERIAL = AI_DEFAULT_MATERIAL_NAME;
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// -------------------------------------------------------------------
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// Constructor with loaded data and directories.
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ObjFileParser::ObjFileParser(const std::vector<char> &data,const std::string &modelName, IOSystem *io, ProgressHandler* progress ) :
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m_DataBuffer(data),
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m_pModel(NULL),
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m_uiLine(0),
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m_pIO( io ),
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m_progress(progress)
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{
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// Create the model instance to store all the data
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m_pModel = new ObjFile::Model();
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m_pModel->m_ModelName = modelName;
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// create default material and store it
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m_pModel->m_pDefaultMaterial = new ObjFile::Material;
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m_pModel->m_pDefaultMaterial->MaterialName.Set( DEFAULT_MATERIAL );
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m_pModel->m_MaterialLib.push_back( DEFAULT_MATERIAL );
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m_pModel->m_MaterialMap[ DEFAULT_MATERIAL ] = m_pModel->m_pDefaultMaterial;
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// Start parsing the file
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parseFile();
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}
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// -------------------------------------------------------------------
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// Destructor
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ObjFileParser::~ObjFileParser()
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{
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delete m_pModel;
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m_pModel = NULL;
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}
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// -------------------------------------------------------------------
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// Returns a pointer to the model instance.
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ObjFile::Model *ObjFileParser::GetModel() const
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{
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return m_pModel;
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}
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// -------------------------------------------------------------------
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// File parsing method.
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void ObjFileParser::parseFile()
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{
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//! Iterator to current position in buffer
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ConstDataArrayIt dataIt = m_DataBuffer.begin();
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//! Iterator to end position of buffer
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const ConstDataArrayIt dataItEnd = m_DataBuffer.end();
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if (dataIt == dataItEnd)
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return;
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//! Helper buffer
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std::vector<char> helperBuffer;
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// only update every 100KB or it'll be too slow
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const unsigned int updateProgressEveryBytes = 100 * 1024;
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unsigned int progressCounter = 0;
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const unsigned int bytesToProcess = std::distance(dataIt, dataItEnd);
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const unsigned int progressTotal = bytesToProcess;
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unsigned int processed = 0;
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ConstDataArrayIt lastDataIt = dataIt;
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while (dataIt != dataItEnd)
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{
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// Handle progress reporting
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processed += std::distance(lastDataIt, dataIt);
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lastDataIt = dataIt;
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if (processed > (progressCounter * updateProgressEveryBytes))
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{
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progressCounter++;
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m_progress->UpdateFileRead(processed, progressTotal);
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}
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// take the next line and copy it into a helper buffer
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// all subsequant parsing should use the helper buffer
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copyNextLine(helperBuffer, dataIt, dataItEnd);
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if (helperBuffer[0] == '\0')
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{
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// either empty line, or end of file
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if (dataIt == dataItEnd)
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{
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// end of file
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return;
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}
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// else empty line, so skip
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continue;
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}
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//! Iterator to current position in helper buffer
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ConstDataArrayIt helperIt = helperBuffer.begin();
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//! Iterator to end of helper buffer
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const ConstDataArrayIt helperItEnd = helperBuffer.end();
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// parse line
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switch (*helperIt)
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{
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case 'v': // Parse a vertex texture coordinate
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{
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if (++helperIt != helperItEnd) {
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if (*helperIt == ' ' || *helperIt == '\t') {
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// read in vertex definition
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getVector3(m_pModel->m_Vertices, ++helperIt, helperItEnd);
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} else if (*helperIt == 't') {
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// read in texture coordinate ( 2D or 3D )
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getVector( m_pModel->m_TextureCoord, ++helperIt, helperItEnd);
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} else if (*helperIt == 'n') {
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// Read in normal vector definition
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getVector3( m_pModel->m_Normals, ++helperIt, helperItEnd);
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}
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// else unknown line
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}
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// else no more data
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}
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break;
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case 'p': // Parse a face, line or point statement
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case 'l':
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case 'f':
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{
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getFace(*helperIt == 'f' ? aiPrimitiveType_POLYGON : (*helperIt == 'l'
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? aiPrimitiveType_LINE : aiPrimitiveType_POINT), ++helperIt, helperItEnd);
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}
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break;
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case '#': // Parse a comment
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{
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// just ignore it
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}
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break;
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case 'u': // Parse a material desc. setter
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{
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getMaterialDesc(++helperIt, helperItEnd);
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}
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break;
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case 'm': // Parse a material library or merging group ('mg')
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{
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if (*(helperIt + 1) == 'g')
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getGroupNumberAndResolution();
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else {
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getMaterialLib(++helperIt, helperItEnd);
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}
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}
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break;
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case 'g': // Parse group name
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{
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getGroupName(++helperIt, helperItEnd);
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}
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break;
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case 's': // Parse group number
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{
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getGroupNumber();
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}
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break;
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case 'o': // Parse object name
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{
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getObjectName(++helperIt, helperItEnd);
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}
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break;
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default:
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{
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// unknown line, skip
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}
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break;
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}
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}
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}
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// -------------------------------------------------------------------
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// Copy the next word in a temporary buffer
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bool ObjFileParser::getNextFloat(ConstDataArrayIt &dataIt, const ConstDataArrayIt dataItEnd, float &result)
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{
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std::vector<char> tmpBuffer;
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dataIt = getNextWord<ConstDataArrayIt>(dataIt, dataItEnd);
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while( dataIt != dataItEnd && !IsSpaceOrNewLine( *dataIt ) ) {
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tmpBuffer.push_back(*dataIt);
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++dataIt;
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}
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if (tmpBuffer.size() == 0)
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{
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return false;
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}
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tmpBuffer.push_back('\0');
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result = fast_atof(&tmpBuffer[0]);
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return true;
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}
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// -------------------------------------------------------------------
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// Copy the next line into a temporary buffer
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void ObjFileParser::copyNextLine(std::vector<char> &buffer, ConstDataArrayIt &dataIt, const ConstDataArrayIt dataItEnd)
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{
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// clear old data out. This is O(1) since a char is a "trivially-destructable type"
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buffer.clear();
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// some OBJ files have line continuations using \ (such as in C++ et al)
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bool continuation = false;
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for (;dataIt != dataItEnd; ++dataIt)
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{
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const char c = *dataIt;
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if (c == '\\') {
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continuation = true;
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continue;
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}
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if (c == '\n' || c == '\r') {
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if(continuation) {
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buffer.push_back(' ');
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continue;
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}
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// end of line, update dataIt to point to the start of the next
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dataIt = skipLine<ConstDataArrayIt>(dataIt, dataItEnd, m_uiLine );
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break;
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}
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continuation = false;
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buffer.push_back(c);
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}
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// add a NULL terminator
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buffer.push_back('\0');
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}
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// -------------------------------------------------------------------
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void ObjFileParser::getVector( std::vector<aiVector3D> &point3d_array, ConstDataArrayIt &dataIt, const ConstDataArrayIt dataItEnd) {
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size_t numComponents( 0 );
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float components[3];
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while( dataIt != dataItEnd ) {
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if (!getNextFloat(dataIt, dataItEnd, components[numComponents]))
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{
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// failed
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break;
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}
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numComponents++;
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if (numComponents == 3)
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{
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// 3 is the max
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break;
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}
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}
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if( 2 == numComponents ) {
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components[2] = 0.0f;
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} else if( 3 != numComponents ) {
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throw DeadlyImportError( "OBJ: Invalid number of components" );
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}
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point3d_array.push_back( aiVector3D( components[0], components[1], components[2] ) );
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}
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// -------------------------------------------------------------------
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// Get values for a new 3D vector instance
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void ObjFileParser::getVector3(std::vector<aiVector3D> &point3d_array, ConstDataArrayIt &dataIt, const ConstDataArrayIt dataItEnd) {
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float x, y, z;
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if (!getNextFloat(dataIt, dataItEnd, x) ||
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!getNextFloat(dataIt, dataItEnd, y) ||
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!getNextFloat(dataIt, dataItEnd, z))
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{
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throw DeadlyImportError( "OBJ: Invalid number of components" );
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}
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else
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{
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point3d_array.push_back( aiVector3D( x, y, z ) );
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}
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}
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// -------------------------------------------------------------------
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// Get values for a new 2D vector instance
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void ObjFileParser::getVector2( std::vector<aiVector2D> &point2d_array, ConstDataArrayIt &dataIt, const ConstDataArrayIt dataItEnd) {
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float x, y;
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if (!getNextFloat(dataIt, dataItEnd, x) ||
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!getNextFloat(dataIt, dataItEnd, y))
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{
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throw DeadlyImportError( "OBJ: Invalid number of components" );
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}
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else
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{
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point2d_array.push_back( aiVector2D( x, y ) );
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}
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}
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// -------------------------------------------------------------------
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// Get values for a new face instance
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void ObjFileParser::getFace(aiPrimitiveType type, ConstDataArrayIt &dataIt, const ConstDataArrayIt dataItEnd)
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{
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ConstDataArrayIt pPtr = getNextToken<ConstDataArrayIt>(dataIt, dataItEnd);
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if (pPtr == dataItEnd || *pPtr == '\0')
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return;
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std::vector<unsigned int> *pIndices = new std::vector<unsigned int>;
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std::vector<unsigned int> *pTexID = new std::vector<unsigned int>;
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std::vector<unsigned int> *pNormalID = new std::vector<unsigned int>;
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bool hasNormal = false;
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const int vSize = m_pModel->m_Vertices.size();
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const int vtSize = m_pModel->m_TextureCoord.size();
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const int vnSize = m_pModel->m_Normals.size();
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const bool vt = (!m_pModel->m_TextureCoord.empty());
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const bool vn = (!m_pModel->m_Normals.empty());
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int iStep = 0, iPos = 0;
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while (pPtr != dataItEnd)
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{
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iStep = 1;
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if (IsLineEnd(*pPtr))
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break;
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if (*pPtr=='/' )
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{
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if (type == aiPrimitiveType_POINT) {
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DefaultLogger::get()->error("Obj: Separator unexpected in point statement");
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}
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if (iPos == 0)
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{
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//if there are no texture coordinates in the file, but normals
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if (!vt && vn) {
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iPos = 1;
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iStep++;
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}
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}
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iPos++;
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}
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else if( IsSpaceOrNewLine( *pPtr ) )
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{
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iPos = 0;
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}
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else
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{
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//OBJ USES 1 Base ARRAYS!!!!
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const int iVal = atoi( &pPtr[0] );
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// increment iStep position based off of the sign and # of digits
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int tmp = iVal;
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if (iVal < 0)
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++iStep;
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while ( ( tmp = tmp / 10 )!=0 )
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++iStep;
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if ( iVal > 0 )
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{
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// Store parsed index
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if ( 0 == iPos )
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{
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pIndices->push_back( iVal-1 );
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}
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else if ( 1 == iPos )
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{
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pTexID->push_back( iVal-1 );
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}
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else if ( 2 == iPos )
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{
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pNormalID->push_back( iVal-1 );
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hasNormal = true;
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}
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else
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{
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reportErrorTokenInFace();
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}
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}
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else if ( iVal < 0 )
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{
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// Store relatively index
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if ( 0 == iPos )
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{
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pIndices->push_back( vSize + iVal );
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}
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else if ( 1 == iPos )
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{
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pTexID->push_back( vtSize + iVal );
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}
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else if ( 2 == iPos )
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{
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pNormalID->push_back( vnSize + iVal );
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hasNormal = true;
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}
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else
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{
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reportErrorTokenInFace();
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}
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}
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}
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pPtr += iStep;
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}
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if ( pIndices->empty() ) {
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DefaultLogger::get()->error("Obj: Ignoring empty face");
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// clean up
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delete pNormalID;
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delete pTexID;
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delete pIndices;
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return;
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}
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ObjFile::Face *face = new ObjFile::Face( pIndices, pNormalID, pTexID, type );
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// Set active material, if one set
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if( NULL != m_pModel->m_pCurrentMaterial ) {
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face->m_pMaterial = m_pModel->m_pCurrentMaterial;
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} else {
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face->m_pMaterial = m_pModel->m_pDefaultMaterial;
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}
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// Create a default object, if nothing is there
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if( NULL == m_pModel->m_pCurrent ) {
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createObject( "defaultobject" );
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}
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// Assign face to mesh
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if ( NULL == m_pModel->m_pCurrentMesh ) {
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createMesh( "defaultobject" );
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}
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// Store the face
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m_pModel->m_pCurrentMesh->m_Faces.push_back( face );
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m_pModel->m_pCurrentMesh->m_uiNumIndices += (unsigned int)face->m_pVertices->size();
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m_pModel->m_pCurrentMesh->m_uiUVCoordinates[ 0 ] += (unsigned int)face->m_pTexturCoords[0].size();
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if( !m_pModel->m_pCurrentMesh->m_hasNormals && hasNormal ) {
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m_pModel->m_pCurrentMesh->m_hasNormals = true;
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}
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}
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// -------------------------------------------------------------------
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// Get values for a new material description
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void ObjFileParser::getMaterialDesc(ConstDataArrayIt &dataIt, const ConstDataArrayIt dataItEnd)
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{
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// Get next data for material data
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dataIt = getNextToken<ConstDataArrayIt>(dataIt, dataItEnd);
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if (dataIt == dataItEnd) {
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return;
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}
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// In some cases we should ignore this 'usemtl' command, this variable helps us to do so
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bool skip = false;
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// Get name
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std::string strName(dataIt, dataItEnd);
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strName = trim_whitespaces(strName);
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if (strName.empty())
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skip = true;
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// If the current mesh has the same material, we simply ignore that 'usemtl' command
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// There is no need to create another object or even mesh here
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if (m_pModel->m_pCurrentMaterial && m_pModel->m_pCurrentMaterial->MaterialName == aiString(strName))
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skip = true;
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if (!skip)
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{
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// Search for material
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std::map<std::string, ObjFile::Material*>::iterator it = m_pModel->m_MaterialMap.find(strName);
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if (it == m_pModel->m_MaterialMap.end())
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{
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// Not found, use default material
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m_pModel->m_pCurrentMaterial = m_pModel->m_pDefaultMaterial;
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DefaultLogger::get()->error("OBJ: failed to locate material " + strName + ", skipping");
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strName = m_pModel->m_pDefaultMaterial->MaterialName.C_Str();
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}
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else
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{
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// Found, using detected material
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m_pModel->m_pCurrentMaterial = (*it).second;
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}
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if (needsNewMesh(strName))
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createMesh(strName);
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m_pModel->m_pCurrentMesh->m_uiMaterialIndex = getMaterialIndex(strName);
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}
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}
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// -------------------------------------------------------------------
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// Get material library from file.
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void ObjFileParser::getMaterialLib(ConstDataArrayIt &dataIt, const ConstDataArrayIt dataItEnd)
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{
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// Translate tuple
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dataIt = getNextToken<ConstDataArrayIt>(dataIt, dataItEnd);
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if( dataIt == dataItEnd ) {
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return;
|
|
}
|
|
|
|
// Check for existence
|
|
const std::string strMatName(dataIt, dataItEnd);
|
|
std::string absName;
|
|
if ( m_pIO->StackSize() > 0 ) {
|
|
std::string path = m_pIO->CurrentDirectory();
|
|
if ( '/' != *path.rbegin() ) {
|
|
path += '/';
|
|
}
|
|
absName = path + strMatName;
|
|
} else {
|
|
absName = strMatName;
|
|
}
|
|
IOStream *pFile = m_pIO->Open( absName );
|
|
|
|
if (!pFile ) {
|
|
DefaultLogger::get()->error( "OBJ: Unable to locate material file " + strMatName );
|
|
return;
|
|
}
|
|
|
|
// Import material library data from file.
|
|
// Some exporters (e.g. Silo) will happily write out empty
|
|
// material files if the model doesn't use any materials, so we
|
|
// allow that.
|
|
std::vector<char> buffer;
|
|
BaseImporter::TextFileToBuffer( pFile, buffer, BaseImporter::ALLOW_EMPTY );
|
|
m_pIO->Close( pFile );
|
|
|
|
// Importing the material library
|
|
ObjFileMtlImporter mtlImporter( buffer, strMatName, m_pModel );
|
|
}
|
|
|
|
// -------------------------------------------------------------------
|
|
// Set a new material definition as the current material.
|
|
void ObjFileParser::getNewMaterial(ConstDataArrayIt &dataIt, const ConstDataArrayIt dataItEnd)
|
|
{
|
|
dataIt = getNextToken<ConstDataArrayIt>(dataIt, dataItEnd);
|
|
dataIt = getNextWord<ConstDataArrayIt>(dataIt, dataItEnd);
|
|
if( dataIt == dataItEnd ) {
|
|
return;
|
|
}
|
|
|
|
const char *pStart = &(*dataIt);
|
|
while( dataIt != dataItEnd && IsSpaceOrNewLine( *dataIt ) ) {
|
|
++dataIt;
|
|
}
|
|
std::string strMat( pStart, *dataIt );
|
|
std::map<std::string, ObjFile::Material*>::iterator it = m_pModel->m_MaterialMap.find( strMat );
|
|
if ( it == m_pModel->m_MaterialMap.end() )
|
|
{
|
|
// Show a warning, if material was not found
|
|
DefaultLogger::get()->warn("OBJ: Unsupported material requested: " + strMat);
|
|
m_pModel->m_pCurrentMaterial = m_pModel->m_pDefaultMaterial;
|
|
}
|
|
else
|
|
{
|
|
// Set new material
|
|
if ( needsNewMesh( strMat ) )
|
|
{
|
|
createMesh( strMat );
|
|
}
|
|
m_pModel->m_pCurrentMesh->m_uiMaterialIndex = getMaterialIndex( strMat );
|
|
}
|
|
}
|
|
|
|
// -------------------------------------------------------------------
|
|
int ObjFileParser::getMaterialIndex( const std::string &strMaterialName )
|
|
{
|
|
int mat_index = -1;
|
|
if( strMaterialName.empty() ) {
|
|
return mat_index;
|
|
}
|
|
for (size_t index = 0; index < m_pModel->m_MaterialLib.size(); ++index)
|
|
{
|
|
if ( strMaterialName == m_pModel->m_MaterialLib[ index ])
|
|
{
|
|
mat_index = (int)index;
|
|
break;
|
|
}
|
|
}
|
|
return mat_index;
|
|
}
|
|
|
|
// -------------------------------------------------------------------
|
|
// Getter for a group name.
|
|
void ObjFileParser::getGroupName(ConstDataArrayIt &dataIt, const ConstDataArrayIt dataItEnd)
|
|
{
|
|
std::string strGroupName;
|
|
|
|
dataIt = getNextToken<ConstDataArrayIt>(dataIt, dataItEnd);
|
|
dataIt = getName<ConstDataArrayIt>(dataIt, dataItEnd, strGroupName);
|
|
if( isEndOfBuffer( dataIt, dataItEnd ) ) {
|
|
return;
|
|
}
|
|
|
|
// Change active group, if necessary
|
|
if ( m_pModel->m_strActiveGroup != strGroupName )
|
|
{
|
|
// Search for already existing entry
|
|
ObjFile::Model::ConstGroupMapIt it = m_pModel->m_Groups.find(strGroupName);
|
|
|
|
// We are mapping groups into the object structure
|
|
createObject( strGroupName );
|
|
|
|
// New group name, creating a new entry
|
|
if (it == m_pModel->m_Groups.end())
|
|
{
|
|
std::vector<unsigned int> *pFaceIDArray = new std::vector<unsigned int>;
|
|
m_pModel->m_Groups[ strGroupName ] = pFaceIDArray;
|
|
m_pModel->m_pGroupFaceIDs = (pFaceIDArray);
|
|
}
|
|
else
|
|
{
|
|
m_pModel->m_pGroupFaceIDs = (*it).second;
|
|
}
|
|
m_pModel->m_strActiveGroup = strGroupName;
|
|
}
|
|
}
|
|
|
|
// -------------------------------------------------------------------
|
|
// Not supported
|
|
void ObjFileParser::getGroupNumber()
|
|
{
|
|
// Not used
|
|
}
|
|
|
|
// -------------------------------------------------------------------
|
|
// Not supported
|
|
void ObjFileParser::getGroupNumberAndResolution()
|
|
{
|
|
// Not used
|
|
}
|
|
|
|
// -------------------------------------------------------------------
|
|
// Stores values for a new object instance, name will be used to
|
|
// identify it.
|
|
void ObjFileParser::getObjectName(ConstDataArrayIt &dataIt, const ConstDataArrayIt dataItEnd)
|
|
{
|
|
dataIt = getNextToken<ConstDataArrayIt>(dataIt, dataItEnd);
|
|
if( dataIt == dataItEnd ) {
|
|
return;
|
|
}
|
|
|
|
std::string strObjectName(dataIt, dataItEnd);
|
|
if (!strObjectName.empty())
|
|
{
|
|
// Reset current object
|
|
m_pModel->m_pCurrent = NULL;
|
|
|
|
// Search for actual object
|
|
for (std::vector<ObjFile::Object*>::const_iterator it = m_pModel->m_Objects.begin();
|
|
it != m_pModel->m_Objects.end();
|
|
++it)
|
|
{
|
|
if ((*it)->m_strObjName == strObjectName)
|
|
{
|
|
m_pModel->m_pCurrent = *it;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Allocate a new object, if current one was not found before
|
|
if( NULL == m_pModel->m_pCurrent ) {
|
|
createObject( strObjectName );
|
|
}
|
|
}
|
|
}
|
|
// -------------------------------------------------------------------
|
|
// Creates a new object instance
|
|
void ObjFileParser::createObject(const std::string &objName)
|
|
{
|
|
ai_assert( NULL != m_pModel );
|
|
|
|
m_pModel->m_pCurrent = new ObjFile::Object;
|
|
m_pModel->m_pCurrent->m_strObjName = objName;
|
|
m_pModel->m_Objects.push_back( m_pModel->m_pCurrent );
|
|
|
|
createMesh( objName );
|
|
|
|
if( m_pModel->m_pCurrentMaterial )
|
|
{
|
|
m_pModel->m_pCurrentMesh->m_uiMaterialIndex =
|
|
getMaterialIndex( m_pModel->m_pCurrentMaterial->MaterialName.data );
|
|
m_pModel->m_pCurrentMesh->m_pMaterial = m_pModel->m_pCurrentMaterial;
|
|
}
|
|
}
|
|
// -------------------------------------------------------------------
|
|
// Creates a new mesh
|
|
void ObjFileParser::createMesh( const std::string &meshName )
|
|
{
|
|
ai_assert( NULL != m_pModel );
|
|
m_pModel->m_pCurrentMesh = new ObjFile::Mesh( meshName );
|
|
m_pModel->m_Meshes.push_back( m_pModel->m_pCurrentMesh );
|
|
unsigned int meshId = m_pModel->m_Meshes.size()-1;
|
|
if ( NULL != m_pModel->m_pCurrent )
|
|
{
|
|
m_pModel->m_pCurrent->m_Meshes.push_back( meshId );
|
|
}
|
|
else
|
|
{
|
|
DefaultLogger::get()->error("OBJ: No object detected to attach a new mesh instance.");
|
|
}
|
|
}
|
|
|
|
// -------------------------------------------------------------------
|
|
// Returns true, if a new mesh must be created.
|
|
bool ObjFileParser::needsNewMesh( const std::string &rMaterialName )
|
|
{
|
|
if(m_pModel->m_pCurrentMesh == 0)
|
|
{
|
|
// No mesh data yet
|
|
return true;
|
|
}
|
|
bool newMat = false;
|
|
int matIdx = getMaterialIndex( rMaterialName );
|
|
int curMatIdx = m_pModel->m_pCurrentMesh->m_uiMaterialIndex;
|
|
if ( curMatIdx != int(ObjFile::Mesh::NoMaterial) && curMatIdx != matIdx )
|
|
{
|
|
// New material -> only one material per mesh, so we need to create a new
|
|
// material
|
|
newMat = true;
|
|
}
|
|
return newMat;
|
|
}
|
|
|
|
// -------------------------------------------------------------------
|
|
// Shows an error in parsing process.
|
|
void ObjFileParser::reportErrorTokenInFace()
|
|
{
|
|
DefaultLogger::get()->error("OBJ: Not supported token in face description detected");
|
|
}
|
|
|
|
// -------------------------------------------------------------------
|
|
|
|
} // Namespace Assimp
|
|
|
|
#endif // !! ASSIMP_BUILD_NO_OBJ_IMPORTER
|