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// |
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// leaf-node-collada.cpp |
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// gepetto-viewer |
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// |
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// Created by Anthony Couret, Mathieu Geisert in November 2014. |
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// Copyright (c) 2014 LAAS-CNRS. All rights reserved. |
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// |
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#include <gepetto/viewer/leaf-node-collada.h> |
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#include <sys/stat.h> |
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#include <clocale> |
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#include <fstream> |
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#include <ios> |
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#include <osg/LightModel> |
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#include <osg/Texture2D> |
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#include <osg/Version> |
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#include <osgDB/FileNameUtils> |
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#include <osgUtil/Optimizer> |
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#include "log.hh" |
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namespace gepetto { |
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namespace viewer { |
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inline bool fileExists(const char* fn) { |
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struct stat buffer; |
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return (stat(fn, &buffer) == 0); |
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} |
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std::string getCachedFileName(const std::string& meshfile) { |
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static const std::string exts[3] = {".osgb", ".osg2", ".osg"}; |
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for (int i = 0; i < 3; ++i) { |
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std::string cached = meshfile + exts[i]; |
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if (fileExists(cached.c_str())) return cached; |
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} |
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return std::string(); |
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} |
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class LightSourceRemoving : public osg::NodeVisitor { |
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public: |
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LightSourceRemoving() : NodeVisitor(TRAVERSE_ALL_CHILDREN) {} |
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void apply(osg::LightSource& node) { |
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osg::Group* group = new osg::Group(node); |
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for (unsigned int i = 0; i < node.getNumParents(); ++i) |
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node.getParent(i)->replaceChild(&node, group); |
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} |
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}; |
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#if OSG_VERSION_LESS_THAN(3, 3, 3) |
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struct ObjectCache { |
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typedef std::map<std::string, osg::NodeRefPtr> Map_t; |
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Map_t map_; |
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bool get(const std::string& name, osg::NodeRefPtr& node) const { |
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Map_t::const_iterator it = map_.find(name); |
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if (it != map_.end()) { |
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node = it->second; |
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return true; |
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} |
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return false; |
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} |
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void add(const std::string& name, osg::NodeRefPtr& node) { |
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map_.insert(std::make_pair(name, node)); |
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} |
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void erase(const std::string& name) { map_.erase(name); } |
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}; |
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ObjectCache object_cache; |
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#else |
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osg::ref_ptr<osgDB::ObjectCache> object_cache(new osgDB::ObjectCache); |
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#endif |
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/* Declaration of private function members */ |
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void LeafNodeCollada::init() { |
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group_ptr_ = new osg::Group; |
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group_ptr_->setName("groupForMaterial"); |
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#if OSG_VERSION_LESS_THAN(3, 3, 3) |
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if (!collada_ptr_) object_cache.get(collada_file_path_, collada_ptr_); |
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#endif |
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if (!collada_ptr_) { |
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// Setup cache |
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options_ = new osgDB::Options(); |
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#if OSG_VERSION_GREATER_OR_EQUAL(3, 3, 3) |
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options_->setObjectCache(object_cache); |
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#endif |
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options_->setObjectCacheHint(osgDB::Options::CACHE_ALL); |
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if (!fileExists(collada_file_path_.c_str())) |
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throw std::invalid_argument(std::string("File ") + collada_file_path_ + |
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std::string(" not found.")); |
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std::string osgname = getCachedFileName(collada_file_path_); |
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if (!osgname.empty()) { |
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log() << "Using " << osgname << std::endl; |
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collada_ptr_ = osgDB::readNodeFile(osgname, options_); |
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} else { |
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// get the extension of the meshs file |
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std::string ext = osgDB::getLowerCaseFileExtension(collada_file_path_); |
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if (ext == "obj") { |
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options_->setOptionString("noRotation"); |
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collada_ptr_ = osgDB::readNodeFile(collada_file_path_, options_); |
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} else if (ext == "dae") { |
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float scale = 1.f; |
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options_->setPluginData("DAE-AssetUnitMeter", &scale); |
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if (*localeconv()->decimal_point != '.') { |
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std::cerr |
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<< "Warning: your locale convention uses '" |
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<< localeconv()->decimal_point |
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<< "' as decimal separator while DAE " |
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"expects '.'.\nSet LC_NUMERIC to a locale convetion using '.' " |
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"as " |
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"decimal separator (e.g. export LC_NUMERIC=\"en_US.utf-8\")." |
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<< std::endl; |
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} |
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collada_ptr_ = osgDB::readNodeFile(collada_file_path_, options_); |
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// FIXME: Fixes https://github.com/Gepetto/gepetto-viewer/issues/95 |
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// The bug: Assimp seems to ignore the DAE up_axis tag. Because this |
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// cannot be fixed in assimp without a huge impact, we make GV |
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// compatible with assimp. |
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// |
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// The fix: OSG DAE plugin rotates the actual model with a root |
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// PositionAttitudeTransform, when the DAE up axis is not Z. |
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// We simply reset the attitude. |
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osg::PositionAttitudeTransform* pat = |
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dynamic_cast<osg::PositionAttitudeTransform*>(collada_ptr_.get()); |
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if (pat != NULL) { |
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log() << "Reset up_axis to Z_UP." << std::endl; |
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pat->setAttitude(osgQuat()); |
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} |
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bool error = false; |
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if (!collada_ptr_) { |
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log() << "File: " << collada_file_path_ << " could not be loaded\n"; |
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error = true; |
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} else if (strncasecmp(collada_ptr_->getName().c_str(), "empty", 5) == |
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0) { |
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log() << "File: " << collada_file_path_ << " could not be loaded:\n" |
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<< collada_ptr_->getName() << '\n'; |
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error = true; |
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} |
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if (error) { |
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log() |
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<< "You may try to convert the file with the following command:\n" |
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"osgconv " |
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<< collada_file_path_ << ' ' << collada_file_path_ << ".osgb" |
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<< std::endl; |
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} |
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// Apply scale |
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if (scale != 1.) { |
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osg::ref_ptr<osg::MatrixTransform> xform = new osg::MatrixTransform; |
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xform->setDataVariance(osg::Object::STATIC); |
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xform->setMatrix(osg::Matrix::scale(scale, scale, scale)); |
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xform->addChild(collada_ptr_); |
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collada_ptr_ = xform; |
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} |
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} else |
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collada_ptr_ = osgDB::readNodeFile(collada_file_path_, options_); |
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} |
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if (!collada_ptr_) |
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throw std::invalid_argument( |
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std::string("File ") + collada_file_path_ + |
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std::string( |
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" found but could not be opened. Check that a plugin exist.")); |
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#if OSG_VERSION_LESS_THAN(3, 3, 3) |
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object_cache.add(collada_file_path_, collada_ptr_); |
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#endif |
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/* Allow transparency */ |
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collada_ptr_->getOrCreateStateSet()->setMode(GL_BLEND, |
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::osg::StateAttribute::ON); |
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collada_ptr_->setDataVariance(osg::Object::STATIC); |
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osgUtil::Optimizer optimizer; |
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optimizer.optimize(collada_ptr_, osgUtil::Optimizer::DEFAULT_OPTIMIZATIONS); |
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} |
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collada_ptr_->setName("meshfile"); |
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backfaceDrawing_.stateSet(collada_ptr_->getOrCreateStateSet()); |
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backfaceDrawing_.set(false); |
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/* Create PositionAttitudeTransform */ |
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group_ptr_->addChild(collada_ptr_); |
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this->asQueue()->addChild(group_ptr_); |
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addProperty(StringProperty::create("Mesh file", |
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StringProperty::getterFromMemberFunction( |
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this, &LeafNodeCollada::meshFilePath), |
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StringProperty::Setter_t())); |
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addProperty(&backfaceDrawing_); |
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addProperty( |
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StringProperty::create("Texture file", |
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StringProperty::getterFromMemberFunction( |
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this, &LeafNodeCollada::textureFilePath), |
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StringProperty::Setter_t())); |
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addProperty(Vector4Property::create("Color", |
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Vector4Property::getterFromMemberFunction( |
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this, &LeafNodeCollada::getColor), |
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Vector4Property::setterFromMemberFunction( |
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this, &LeafNodeCollada::setColor))); |
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addProperty(VoidProperty::create( |
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"RemoveLightSources", VoidProperty::memberFunction( |
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this, &LeafNodeCollada::removeLightSources))); |
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addProperty(VoidProperty::create( |
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"ApplyScale", |
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VoidProperty::memberFunction(this, &LeafNodeCollada::applyScale))); |
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} |
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LeafNodeCollada::LeafNodeCollada(const std::string& name, |
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const std::string& collada_file_path) |
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: Node(name), collada_file_path_(collada_file_path), collada_ptr_() { |
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init(); |
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} |
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LeafNodeCollada::LeafNodeCollada(const std::string& name, |
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const std::string& collada_file_path, |
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const osgVector4& color) |
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: Node(name), collada_file_path_(collada_file_path), collada_ptr_() { |
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init(); |
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setColor(color); |
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} |
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LeafNodeCollada::LeafNodeCollada(const std::string& name, |
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const ::osg::NodeRefPtr& node, |
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const std::string& collada_file_path) |
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: Node(name), collada_file_path_(collada_file_path), collada_ptr_(node) { |
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init(); |
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} |
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LeafNodeCollada::LeafNodeCollada(const LeafNodeCollada& other) |
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: Node(other.getID()), collada_file_path_(other.collada_file_path_) { |
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init(); |
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} |
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void LeafNodeCollada::initWeakPtr(LeafNodeColladaWeakPtr other_weak_ptr) { |
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weak_ptr_ = other_weak_ptr; |
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} |
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/* End of declaration of private function members */ |
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/* Declaration of protected function members */ |
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LeafNodeColladaPtr_t LeafNodeCollada::create( |
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const std::string& name, const std::string& collada_file_path) { |
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std::ifstream infile(collada_file_path.c_str()); |
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if (!infile.good()) { |
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throw std::ios_base::failure(collada_file_path + |
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std::string(" does not exist.")); |
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} |
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LeafNodeColladaPtr_t shared_ptr(new LeafNodeCollada(name, collada_file_path)); |
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// Add reference to itself |
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shared_ptr->initWeakPtr(shared_ptr); |
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return shared_ptr; |
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} |
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LeafNodeColladaPtr_t LeafNodeCollada::create( |
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const std::string& name, ::osg::NodeRefPtr mesh, |
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const std::string& collada_file_path) { |
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LeafNodeColladaPtr_t shared_ptr( |
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new LeafNodeCollada(name, mesh, collada_file_path)); |
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// Add reference to itself |
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shared_ptr->initWeakPtr(shared_ptr); |
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return shared_ptr; |
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} |
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LeafNodeColladaPtr_t LeafNodeCollada::create( |
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const std::string& name, const std::string& collada_file_path, |
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const osgVector4& color) { |
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std::ifstream infile(collada_file_path.c_str()); |
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if (!infile.good()) { |
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throw std::ios_base::failure(collada_file_path + |
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std::string(" does not exist.")); |
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} |
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LeafNodeColladaPtr_t shared_ptr( |
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new LeafNodeCollada(name, collada_file_path, color)); |
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// Add reference to itself |
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shared_ptr->initWeakPtr(shared_ptr); |
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return shared_ptr; |
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} |
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LeafNodeColladaPtr_t LeafNodeCollada::createCopy(LeafNodeColladaPtr_t other) { |
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LeafNodeColladaPtr_t shared_ptr(new LeafNodeCollada(*other)); |
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// Add reference to itself |
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shared_ptr->initWeakPtr(shared_ptr); |
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return shared_ptr; |
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} |
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::osg::NodeRefPtr LeafNodeCollada::getColladaPtr() { return collada_ptr_; } |
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/* End of declaration of protected function members */ |
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/* Declaration of public function members */ |
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LeafNodeColladaPtr_t LeafNodeCollada::clone(void) const { |
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return LeafNodeCollada::createCopy(weak_ptr_.lock()); |
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} |
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LeafNodeColladaPtr_t LeafNodeCollada::self(void) const { |
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return weak_ptr_.lock(); |
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} |
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void LeafNodeCollada::setColor(const osgVector4& color) { |
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osg::ref_ptr<osg::Material> mat_ptr(new osg::Material); |
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osgVector4 ambient(color.r() * 0.5f, color.g() * 0.5f, color.b() * 0.5f, |
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color.a()); |
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mat_ptr->setDiffuse(osg::Material::FRONT_AND_BACK, color); |
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mat_ptr->setAmbient(osg::Material::FRONT_AND_BACK, ambient); |
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osg::StateSet* ss = group_ptr_->getOrCreateStateSet(); |
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ss->setAttribute(mat_ptr.get()); |
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setTransparentRenderingBin(color[3] < Node::TransparencyRenderingBinThreshold, |
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ss); |
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setDirty(); |
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} |
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|
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osgVector4 LeafNodeCollada::getColor() const { |
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osg::StateSet* ss = group_ptr_->getStateSet(); |
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if (ss) { |
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✗ |
osg::Material* mat = dynamic_cast<osg::Material*>( |
| 333 |
|
✗ |
ss->getAttribute(osg::StateAttribute::MATERIAL)); |
| 334 |
|
✗ |
if (mat) return mat->getDiffuse(osg::Material::FRONT_AND_BACK); |
| 335 |
|
|
} |
| 336 |
|
✗ |
return osgVector4(1., 1., 1., 1.); |
| 337 |
|
|
} |
| 338 |
|
|
|
| 339 |
|
✗ |
void LeafNodeCollada::setAlpha(const float& alpha) { |
| 340 |
|
|
// TODO this overload is probably not necessary. |
| 341 |
|
✗ |
osg::StateSet* ss = group_ptr_->getOrCreateStateSet(); |
| 342 |
|
|
|
| 343 |
|
✗ |
alpha_ = alpha; |
| 344 |
|
|
osg::Material* mat; |
| 345 |
|
✗ |
if (ss->getAttribute(osg::StateAttribute::MATERIAL)) |
| 346 |
|
✗ |
mat = dynamic_cast<osg::Material*>( |
| 347 |
|
✗ |
ss->getAttribute(osg::StateAttribute::MATERIAL)); |
| 348 |
|
|
else { |
| 349 |
|
✗ |
mat = new osg::Material; |
| 350 |
|
✗ |
ss->setAttribute(mat); |
| 351 |
|
|
} |
| 352 |
|
✗ |
mat->setAlpha(osg::Material::FRONT_AND_BACK, alpha); |
| 353 |
|
✗ |
setTransparentRenderingBin(alpha < Node::TransparencyRenderingBinThreshold, |
| 354 |
|
|
ss); |
| 355 |
|
✗ |
setDirty(); |
| 356 |
|
|
} |
| 357 |
|
|
|
| 358 |
|
✗ |
void LeafNodeCollada::setTexture(const std::string& image_path) { |
| 359 |
|
✗ |
texture_file_path_ = image_path; |
| 360 |
|
✗ |
osg::ref_ptr<osg::Texture2D> texture = new osg::Texture2D; |
| 361 |
|
✗ |
texture->setDataVariance(osg::Object::STATIC); |
| 362 |
|
✗ |
osg::ref_ptr<osg::Image> image = osgDB::readImageFile(image_path); |
| 363 |
|
✗ |
if (!image) { |
| 364 |
|
✗ |
log() << " couldn't find texture, quiting." << std::endl; |
| 365 |
|
✗ |
return; |
| 366 |
|
|
} |
| 367 |
|
✗ |
texture->setImage(image); |
| 368 |
|
✗ |
collada_ptr_->getOrCreateStateSet()->setTextureAttributeAndModes( |
| 369 |
|
|
0, texture, osg::StateAttribute::ON); |
| 370 |
|
✗ |
setDirty(); |
| 371 |
|
|
} |
| 372 |
|
|
|
| 373 |
|
✗ |
const std::string& LeafNodeCollada::meshFilePath() const { |
| 374 |
|
✗ |
return collada_file_path_; |
| 375 |
|
|
} |
| 376 |
|
|
|
| 377 |
|
✗ |
const std::string& LeafNodeCollada::textureFilePath() const { |
| 378 |
|
✗ |
return texture_file_path_; |
| 379 |
|
|
} |
| 380 |
|
|
|
| 381 |
|
|
/*void LeafNodeCollada::setColor(osg::NodeRefPtr osgNode_ptr,const osgVector4& |
| 382 |
|
|
color) |
| 383 |
|
|
{ |
| 384 |
|
|
osg::Vec4ArrayRefPtr colorArray = new osg::Vec4Array(); |
| 385 |
|
|
colorArray->push_back(color); |
| 386 |
|
|
osg::GeodeRefPtr geode_ptr = osgNode_ptr->asGeode(); |
| 387 |
|
|
if (geode_ptr) { |
| 388 |
|
|
for (unsigned int i = 0 ; i < geode_ptr->getNumDrawables() ; i++) { |
| 389 |
|
|
osg::GeometryRefPtr geom_ptr = geode_ptr->getDrawable(i)->asGeometry(); |
| 390 |
|
|
if (geom_ptr) { |
| 391 |
|
|
geom_ptr->setColorArray(colorArray.get()); |
| 392 |
|
|
geom_ptr->setColorBinding(osg::Geometry::BIND_OVERALL); |
| 393 |
|
|
} |
| 394 |
|
|
} |
| 395 |
|
|
} |
| 396 |
|
|
else { |
| 397 |
|
|
osg::GroupRefPtr group_ptr = osgNode_ptr->asGroup(); |
| 398 |
|
|
if (group_ptr) { |
| 399 |
|
|
for (unsigned int i = 0 ; i < group_ptr->getNumChildren() ; i++) { |
| 400 |
|
|
setColor(group_ptr->getChild(i),color); |
| 401 |
|
|
} |
| 402 |
|
|
} |
| 403 |
|
|
} |
| 404 |
|
|
}*/ |
| 405 |
|
|
|
| 406 |
|
✗ |
osg::ref_ptr<osg::Node> LeafNodeCollada::getOsgNode() const { |
| 407 |
|
✗ |
return collada_ptr_; |
| 408 |
|
|
} |
| 409 |
|
|
|
| 410 |
|
✗ |
void LeafNodeCollada::removeLightSources() { |
| 411 |
|
✗ |
LightSourceRemoving lsRemoving; |
| 412 |
|
✗ |
collada_ptr_->traverse(lsRemoving); |
| 413 |
|
|
} |
| 414 |
|
|
|
| 415 |
|
✗ |
void LeafNodeCollada::applyScale() { |
| 416 |
|
✗ |
osgVector3 scale(getScale()); |
| 417 |
|
✗ |
setScale(1.); |
| 418 |
|
|
|
| 419 |
|
|
// Do not remove this brackets. See |
| 420 |
|
|
// https://github.com/openscenegraph/OpenSceneGraph/issues/1020 |
| 421 |
|
|
{ |
| 422 |
|
✗ |
osg::ref_ptr<osg::MatrixTransform> xform = new osg::MatrixTransform; |
| 423 |
|
✗ |
xform->setMatrix(osg::Matrix::scale(scale)); |
| 424 |
|
✗ |
xform->setDataVariance(osg::Object::STATIC); |
| 425 |
|
|
|
| 426 |
|
✗ |
group_ptr_->removeChild(collada_ptr_); |
| 427 |
|
✗ |
xform->addChild(collada_ptr_); |
| 428 |
|
✗ |
collada_ptr_ = xform; |
| 429 |
|
|
} |
| 430 |
|
|
|
| 431 |
|
✗ |
osgUtil::Optimizer optimizer; |
| 432 |
|
✗ |
optimizer.optimize(collada_ptr_, |
| 433 |
|
|
osgUtil::Optimizer::FLATTEN_STATIC_TRANSFORMS); |
| 434 |
|
|
|
| 435 |
|
✗ |
group_ptr_->addChild(collada_ptr_); |
| 436 |
|
|
} |
| 437 |
|
|
|
| 438 |
|
✗ |
void LeafNodeCollada::removeFromCache() { |
| 439 |
|
|
#if OSG_VERSION_LESS_THAN(3, 3, 3) |
| 440 |
|
|
object_cache.erase(collada_file_path_); |
| 441 |
|
|
#else |
| 442 |
|
✗ |
object_cache->removeFromObjectCache(collada_file_path_, options_); |
| 443 |
|
|
#endif |
| 444 |
|
|
} |
| 445 |
|
|
|
| 446 |
|
✗ |
LeafNodeCollada::~LeafNodeCollada() { |
| 447 |
|
|
/* Proper deletion of all tree scene */ |
| 448 |
|
✗ |
group_ptr_->removeChild(collada_ptr_); |
| 449 |
|
|
|
| 450 |
|
✗ |
collada_ptr_ = NULL; |
| 451 |
|
|
|
| 452 |
|
✗ |
weak_ptr_.reset(); |
| 453 |
|
|
} |
| 454 |
|
|
|
| 455 |
|
|
/* End of declaration of public function members */ |
| 456 |
|
|
|
| 457 |
|
|
} /* namespace viewer */ |
| 458 |
|
|
|
| 459 |
|
|
} /* namespace gepetto */ |
| 460 |
|
|
|