db4d58b01d
Bone now inherit from MatrixTransform. It simplify a lot the update of Bone matrix. It helps to have the bone system more generic. eg it's now possible to have animation data with precomputed bind matrix. The other benefit, is now the collada plugin will be able to use osgAnimation to display skinned mesh. Michael Plating did a great work to improve this aspect, he is working on the collada plugin and should be able to submit a new version soon. The RigGeometry has been refactored so now it works when you save and reload RigGeometry because the source is not touched anymore. The benefit with this update is that it should be now possible to use a MorphGeometry as source for a RigGeometry. The bad news is that the format has changed, so i have rebuild osg-data related to osgAnimation data, updated the blender exporter to export to the new format. The fbx plugin could be touched about this commit, i dont compile it so i can't give more information about it. The bvh plugin has been updated by Wang rui so this one is fixed with the new code of osgAnimation. The examples has been updated to work with the new code too... The example osg-data/example.osg should be remove, it's an old example that does not work. For people using blender the blender exporter up to date is here: http://hg.plopbyte.net/osgexport2/ it will be merge to http://hg.plopbyte.net/osgexport/ as soon as the modification will be push in the trunk. "
278 lines
9.3 KiB
C++
278 lines
9.3 KiB
C++
/* -*-c++-*-
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* Copyright (C) 2008 Cedric Pinson <cedric.pinson@plopbyte.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Authors:
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*
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* Roland Smeenk
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* Cedric Pinson <cedric.pinson@plopbyte.net>
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*
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*/
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#include <osg/Geode>
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#include <osgAnimation/MorphGeometry>
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#include <stdlib.h>
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using namespace osgAnimation;
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MorphGeometry::MorphGeometry() :
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_dirty(false),
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_method(NORMALIZED),
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_morphNormals(true)
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{
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setUseDisplayList(false);
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setUpdateCallback(new UpdateVertex);
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setDataVariance(osg::Object::DYNAMIC);
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setUseVertexBufferObjects(true);
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}
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MorphGeometry::MorphGeometry(const osg::Geometry& b) :
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osg::Geometry(b, osg::CopyOp::DEEP_COPY_ARRAYS),
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_dirty(false),
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_method(NORMALIZED),
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_morphNormals(true)
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{
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setUseDisplayList(false);
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setUpdateCallback(new UpdateVertex);
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setDataVariance(osg::Object::DYNAMIC);
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setUseVertexBufferObjects(true);
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if (b.getInternalOptimizedGeometry())
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computeInternalOptimizedGeometry();
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}
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MorphGeometry::MorphGeometry(const MorphGeometry& b, const osg::CopyOp& copyop) :
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osg::Geometry(b,copyop),
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_dirty(b._dirty),
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_method(b._method),
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_morphTargets(b._morphTargets),
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_positionSource(b._positionSource),
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_normalSource(b._normalSource),
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_morphNormals(b._morphNormals)
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{
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setUseDisplayList(false);
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setUseVertexBufferObjects(true);
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if (b.getInternalOptimizedGeometry())
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computeInternalOptimizedGeometry();
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}
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void MorphGeometry::transformSoftwareMethod()
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{
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if (_dirty)
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{
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// See if we have an internal optimized geometry
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osg::Geometry* morphGeometry = this;
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if (_internalOptimizedGeometry.valid())
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morphGeometry = _internalOptimizedGeometry.get();
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osg::Vec3Array* pos = dynamic_cast<osg::Vec3Array*>(morphGeometry->getVertexArray());
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if (pos && _positionSource.size() != pos->size())
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{
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_positionSource = std::vector<osg::Vec3>(pos->begin(),pos->end());
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pos->setDataVariance(osg::Object::DYNAMIC);
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}
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osg::Vec3Array* normal = dynamic_cast<osg::Vec3Array*>(morphGeometry->getNormalArray());
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if (normal && _normalSource.size() != normal->size())
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{
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_normalSource = std::vector<osg::Vec3>(normal->begin(),normal->end());
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normal->setDataVariance(osg::Object::DYNAMIC);
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}
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if (!_positionSource.empty())
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{
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bool initialized = false;
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if (_method == NORMALIZED)
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{
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// base * 1 - (sum of weights) + sum of (weight * target)
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float baseWeight = 0;
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for (unsigned int i=0; i < _morphTargets.size(); i++)
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{
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baseWeight += _morphTargets[i].getWeight();
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}
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baseWeight = 1 - baseWeight;
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if (baseWeight != 0)
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{
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initialized = true;
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for (unsigned int i=0; i < pos->size(); i++)
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{
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(*pos)[i] = _positionSource[i] * baseWeight;
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}
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if (_morphNormals)
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{
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for (unsigned int i=0; i < normal->size(); i++)
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{
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(*normal)[i] = _normalSource[i] * baseWeight;
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}
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}
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}
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}
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else //if (_method == RELATIVE)
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{
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// base + sum of (weight * target)
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initialized = true;
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for (unsigned int i=0; i < pos->size(); i++)
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{
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(*pos)[i] = _positionSource[i];
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}
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if (_morphNormals)
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{
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for (unsigned int i=0; i < normal->size(); i++)
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{
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(*normal)[i] = _normalSource[i];
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}
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}
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}
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for (unsigned int i=0; i < _morphTargets.size(); i++)
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{
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if (_morphTargets[i].getWeight() > 0)
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{
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// See if any the targets use the internal optimized geometry
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osg::Geometry* targetGeometry = _morphTargets[i].getGeometry()->getInternalOptimizedGeometry();
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if (!targetGeometry)
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targetGeometry = _morphTargets[i].getGeometry();
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osg::Vec3Array* targetPos = dynamic_cast<osg::Vec3Array*>(targetGeometry->getVertexArray());
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osg::Vec3Array* targetNormals = dynamic_cast<osg::Vec3Array*>(targetGeometry->getNormalArray());
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if (initialized)
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{
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// If vertices are initialized, add the morphtargets
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for (unsigned int j=0; j < pos->size(); j++)
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{
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(*pos)[j] += (*targetPos)[j] * _morphTargets[i].getWeight();
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}
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if (_morphNormals)
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{
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for (unsigned int j=0; j < normal->size(); j++)
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{
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(*normal)[j] += (*targetNormals)[j] * _morphTargets[i].getWeight();
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}
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}
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}
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else
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{
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// If not initialized, initialize with this morph target
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initialized = true;
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for (unsigned int j=0; j < pos->size(); j++)
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{
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(*pos)[j] = (*targetPos)[j] * _morphTargets[i].getWeight();
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}
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if (_morphNormals)
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{
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for (unsigned int j=0; j < normal->size(); j++)
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{
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(*normal)[j] = (*targetNormals)[j] * _morphTargets[i].getWeight();
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}
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}
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}
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}
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}
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pos->dirty();
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if (_morphNormals)
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{
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for (unsigned int j=0; j < normal->size(); j++)
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{
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(*normal)[j].normalize();
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}
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normal->dirty();
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}
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}
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dirtyBound();
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_dirty = false;
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}
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}
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UpdateMorph::UpdateMorph(const UpdateMorph& apc,const osg::CopyOp& copyop) :
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osg::Object(apc, copyop),
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AnimationUpdateCallback<osg::NodeCallback>(apc, copyop)
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{
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}
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UpdateMorph::UpdateMorph(const std::string& name) : AnimationUpdateCallback<osg::NodeCallback>(name)
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{
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}
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/** Callback method called by the NodeVisitor when visiting a node.*/
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void UpdateMorph::operator()(osg::Node* node, osg::NodeVisitor* nv)
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{
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if (nv && nv->getVisitorType() == osg::NodeVisitor::UPDATE_VISITOR)
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{
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osg::Geode* geode = dynamic_cast<osg::Geode*>(node);
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if (geode)
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{
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unsigned int numDrawables = geode->getNumDrawables();
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for (unsigned int i = 0; i != numDrawables; ++i)
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{
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osgAnimation::MorphGeometry* morph = dynamic_cast<osgAnimation::MorphGeometry*>(geode->getDrawable(i));
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if (morph)
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{
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// Update morph weights
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std::map<int, osg::ref_ptr<osgAnimation::FloatTarget> >::iterator iter = _weightTargets.begin();
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while (iter != _weightTargets.end())
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{
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if (iter->second->getValue() >= 0)
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{
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morph->setWeight(iter->first, iter->second->getValue());
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}
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++iter;
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}
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}
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}
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}
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}
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traverse(node,nv);
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}
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bool UpdateMorph::needLink() const
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{
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// the idea is to return true if nothing is linked
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return (_weightTargets.size() == 0);
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}
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bool UpdateMorph::link(osgAnimation::Channel* channel)
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{
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// Typically morph geometries only have the weights for morph targets animated
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// Expect a weight value
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// TODO Should we make this more generic to handle other things than single values?
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int weightIndex = atoi(channel->getName().c_str());
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if (weightIndex >= 0)
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{
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osgAnimation::FloatTarget* ft = _weightTargets[weightIndex].get();
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if (!ft)
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{
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ft = new osgAnimation::FloatTarget;
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_weightTargets[weightIndex] = ft;
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}
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return channel->setTarget(ft);
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}
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else
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{
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osg::notify(osg::WARN) << "Channel " << channel->getName() << " does not contain a valid symbolic name for this class" << std::endl;
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}
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return false;
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}
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