root/OpenSceneGraph/trunk/examples/osganimationmorph/osganimationmorph.cpp @ 11338

Revision 11338, 3.9 kB (checked in by robert, 5 years ago)

From Wang Rui, "Attached is the osgAnimation wrappers for serialize IO operations. A
few headers and the osgAnimation sources are also modified to make
everything goes well, including:

A new REGISTER_OBJECT_WRAPPER2 macro to wrap classes like
Skeleton::UpdateSkeleton?.
A bug fix in the Seralizer header which avoids setting default values
to objects.
Naming style fixes in osgAnimation headers and sources, also in the
deprecated dotosg wrappers.
A bug fix for the XML support, to write char values correctly.
A small change in the osg::Geometry wrapper to ignore the
InternalGeometry? property, which is used by the MorphGeometry? and
should not be set by user applications.

The avatar.osg, nathan.osg and robot.osg data files all work fine with
serializers, with some 'unsupported wrapper' warnings when converting.
I'm thinking of removing these warnings by disabling related property
serializers (ComputeBoundingBoxCallback? and Drawable::UpdateCallback?),
which are seldom recorded by users.

By the way, I still wonder how would we handle the C4121 problem,
discussed some days before. The /Zp compile option is set to 16 in the
attached cmake script file. And is there a better solution now?"

Line 
1/*  -*-c++-*-
2 *  Copyright (C) 2008 Cedric Pinson <mornifle@plopbyte.net>
3 *
4 * This library is open source and may be redistributed and/or modified under 
5 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
6 * (at your option) any later version.  The full license is in LICENSE file
7 * included with this distribution, and on the openscenegraph.org website.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12 * OpenSceneGraph Public License for more details.
13*/
14
15#include <iostream>
16#include <osg/Geometry>
17#include <osg/MatrixTransform>
18#include <osg/Geode>
19#include <osgViewer/Viewer>
20#include <osgViewer/ViewerEventHandlers>
21#include <osgGA/TrackballManipulator>
22#include <osgGA/StateSetManipulator>
23#include <osgUtil/SmoothingVisitor>
24#include <osg/io_utils>
25
26#include <osgAnimation/MorphGeometry>
27#include <osgAnimation/BasicAnimationManager>
28
29#include <osgDB/ReadFile>
30#include <osgDB/WriteFile>
31
32struct GeometryFinder : public osg::NodeVisitor
33{
34    osg::ref_ptr<osg::Geometry> _geom;
35    GeometryFinder() : osg::NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN) {}
36    void apply(osg::Geode& geode)
37    {
38        if (_geom.valid())
39            return;
40        for (unsigned int i = 0; i < geode.getNumDrawables(); i++)
41        {
42            osg::Geometry* geom = dynamic_cast<osg::Geometry*>(geode.getDrawable(i));
43            if (geom) {
44                _geom = geom;
45                return;
46            }
47        }
48    }
49};
50
51osg::Geometry* getShape(const std::string& name)
52{
53    osg::Node* shape0 = osgDB::readNodeFile(name);
54    GeometryFinder finder;
55    shape0->accept(finder);
56    return finder._geom.get();
57}
58
59
60int main (int argc, char* argv[])
61{
62    osg::ArgumentParser arguments(&argc, argv);
63    osgViewer::Viewer viewer(arguments);
64
65    osgAnimation::Animation* animation = new osgAnimation::Animation;
66    osgAnimation::FloatLinearChannel* channel0 = new osgAnimation::FloatLinearChannel;
67    channel0->getOrCreateSampler()->getOrCreateKeyframeContainer()->push_back(osgAnimation::FloatKeyframe(0,0.0));
68    channel0->getOrCreateSampler()->getOrCreateKeyframeContainer()->push_back(osgAnimation::FloatKeyframe(1,1.0));
69    channel0->setTargetName("MorphNodeCallback");
70    channel0->setName("0");
71
72    animation->addChannel(channel0);
73    animation->setName("Morph");
74    animation->computeDuration();
75    animation->setPlayMode(osgAnimation::Animation::PPONG);
76    osgAnimation::BasicAnimationManager* bam = new osgAnimation::BasicAnimationManager;
77    bam->registerAnimation(animation);
78
79    osg::Geometry* geom0 = getShape("morphtarget_shape0.osg");
80    if (!geom0) {
81        std::cerr << "can't read morphtarget_shape0.osg" << std::endl;
82        return 0;
83    }
84
85    osg::Geometry* geom1 = getShape("morphtarget_shape1.osg");
86    if (!geom1) {
87        std::cerr << "can't read morphtarget_shape1.osg" << std::endl;
88        return 0;
89    }
90
91    // initialize with the first shape
92    osgAnimation::MorphGeometry* morph = new osgAnimation::MorphGeometry(*geom0);
93    morph->addMorphTarget(geom1);
94
95    viewer.setCameraManipulator(new osgGA::TrackballManipulator());
96
97
98    osg::Group* scene = new osg::Group;
99    scene->addUpdateCallback(bam);
100   
101    osg::Geode* geode = new osg::Geode;
102    geode->addDrawable(morph);
103    geode->addUpdateCallback(new osgAnimation::UpdateMorph("MorphNodeCallback"));
104    scene->addChild(geode);
105
106    viewer.addEventHandler(new osgViewer::StatsHandler());
107    viewer.addEventHandler(new osgViewer::WindowSizeHandler());
108    viewer.addEventHandler(new osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet()));
109
110    // let's run !
111    viewer.setSceneData( scene );
112    viewer.realize();
113
114    bam->playAnimation(animation);
115
116
117    while (!viewer.done())
118    {
119        viewer.frame();
120    }
121
122    osgDB::writeNodeFile(*scene, "morph_scene.osg");
123
124    return 0;
125}
126
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