/**
* This method will be called from the max system when the user
* has choosen to export to the OpenSceneGraph format.
* This method is the entry point to the exporter plugin.
*/
int OSGExp::DoExport(const TCHAR *name, ExpInterface *ei,
Interface *i, BOOL suppressPrompts, DWORD MAXOptions){
// Only support "one at the time" exporting.
if(isExporting){
return FALSE;
}
isExporting = TRUE;
// Grab the interface pointer and save it for later use.
_ip = i;
// Set export path in options class
TCHAR p[300];
TCHAR f[100];
TCHAR e[10];
BMMSplitFilename(name, p, f, e);
_options->setExportPath(p);
_options->setExportFilename(f);
_options->setExportExtension(e);
// Get filename to config file.
TSTR cfgfilename = _ip->GetDir(APP_PLUGCFG_DIR);;
cfgfilename += _T("\\OSGEXP.CFG");
// Load options from config file
_options->load(cfgfilename);
// Should we only export selected nodes?
_onlyExportSelected = (MAXOptions & SCENE_EXPORT_SELECTED) ? TRUE : FALSE;
// Show option dialog to user and retrive any possible plugin choices.
if(!suppressPrompts)
if(!DialogBoxParam(hInstance, MAKEINTRESOURCE(IDD_EXPORTBOX),
GetActiveWindow(), OptionsDlgProc,
(LPARAM)_options)){
// If user closed or canceled export box then shutdown plugin.
isExporting = FALSE;
return TRUE;
}
// Write options to config file.
_options->write(cfgfilename);
// Create OSG root transform to hold the scene.
{
osg::ref_ptr<osg::MatrixTransform> rootTransform = new osg::MatrixTransform();
//osg::MatrixTransform* rootTransform = new osg::MatrixTransform();
rootTransform->setName(std::string(_ip->GetRootNode()->GetName()));
// Set static datavariance for better performance
rootTransform->setDataVariance(osg::Object::STATIC);
// Set NodeMask
if(_options->getUseDefaultNodeMaskValue())
rootTransform->setNodeMask(_options->getDefaultNodeMaskValue());
osg::Matrix rootMat = getNodeTransform(_ip->GetRootNode(), _ip->GetTime());
rootTransform->setMatrix(rootMat);
// Create root stateset for the lights.
osg::ref_ptr<osg::StateSet> rootStateSet = new osg::StateSet();
// Turn of lighting if set by the user.
if(_options->getTurnOffLighting())
rootStateSet->setMode(GL_LIGHTING,osg::StateAttribute::OVERRIDE|osg::StateAttribute::OFF);
else
rootStateSet->setMode(GL_LIGHTING,osg::StateAttribute::ON);
//osg::StateSet* rootStateSet = new osg::StateSet();
rootTransform->setStateSet(rootStateSet.get());
// We will make two progress bars. The first one will show
// the exporting of materials, wheras the second one will show
// the exporting of nodes. To get the total number of nodes in the
// scene graph we will accumulate the total node count while
// preprocessing the scenegraph for materials.
_nTotalNodeCount = 0;
_nCurNode = 0;
_nTotalMtlCount = _ip->GetSceneMtls()->Count();
_nCurMtl = 0;
// Starting up the material exporting progress bar.
_ip->ProgressStart(_T("Exporting materials..."), TRUE, fn, NULL);
// Export materials by preprocessing the scenegraph.
if(!preProcess(_ip->GetRootNode(), _ip->GetTime())){
// If user cancels we stop progress bar and return.
_ip->ProgressEnd();
isExporting = FALSE;
return TRUE;
}
// We're done exporting materials. Finish the progress bar.
_ip->ProgressEnd();
// Starting up the node exporting progress bar.
_ip->ProgressStart(_T("Exporting scene..."), TRUE, fn, NULL);
// Get number of children for the root node in the interface.
int numChildren = _ip->GetRootNode()->NumberOfChildren();
// Call our node enumerator.
// The nodeEnum function will recurse into itself and
// export each object found in the scene.
for (int idx=0; idx<numChildren; idx++) {
if (_ip->GetCancel() || !nodeEnum(rootTransform.get(), _ip->GetRootNode()->GetChildNode(idx), rootTransform.get())){
// If user cancels we stop progress bar and return
_ip->ProgressEnd();
isExporting = FALSE;
return TRUE;
}
}
// Finish exporting progress bar
_ip->ProgressEnd();
// If optimize scene graph
unsigned int optimizeMask = 0;
if(_options->getTriStripGeometry())
optimizeMask |= osgUtil::Optimizer::TRISTRIP_GEOMETRY;
if(_options->getMergeGeometry())
optimizeMask |= osgUtil::Optimizer::MERGE_GEOMETRY;
if(_options->getFlattenStaticTransform())
optimizeMask |= osgUtil::Optimizer::FLATTEN_STATIC_TRANSFORMS;
if(_options->getShareDuplicateStates())
optimizeMask |= osgUtil::Optimizer::SHARE_DUPLICATE_STATE;
if(_options->getSpatializeGroups())
optimizeMask |= osgUtil::Optimizer::SPATIALIZE_GROUPS;
if(optimizeMask){
_ip->ProgressStart(_T("Optimizing scenegraph..."), FALSE, fn, NULL);
_ip->ProgressUpdate(0.5f);
osgUtil::Optimizer optimizer;
optimizer.optimize(rootTransform.get(), optimizeMask);
_ip->ProgressEnd();
}
// Save file to disk.
if(_options->getSaveFile()){
_ip->ProgressStart(_T("Writing file..."), FALSE, fn, NULL);
_ip->ProgressUpdate(0.5f);
if(_options->getExportExtension().compare(".osg")==0 ||
_options->getExportExtension().compare(".OSG")==0 ||
_options->getExportExtension().compare(".ive")==0 ||
_options->getExportExtension().compare(".IVE")==0 ){
std::string filename(name);
// Exclude image data from ive file if this options has been choosen
if(!_options->getIncludeImageDataInIveFile()){
osgDB::ReaderWriter::Options* opt = new osgDB::ReaderWriter::Options("noTexturesInIVEFile");
osgDB::Registry::instance()->setOptions(opt);
}
#if defined(OPENSCENEGRAPH_MAJOR_VERSION) && OPENSCENEGRAPH_MAJOR_VERSION >= 2 && defined(OPENSCENEGRAPH_MINOR_VERSION) && OPENSCENEGRAPH_MINOR_VERSION >= 4
osgDB::ReaderWriter::WriteResult res =
osgDB::Registry::instance()->writeNode(*rootTransform, filename, NULL);
#else
osgDB::ReaderWriter::WriteResult res =
osgDB::Registry::instance()->writeNode(*rootTransform, filename);
#endif
if(res.error() && _options->getShowErrMsg()){
static TCHAR szBuffer[256];
wsprintf(szBuffer,TEXT("Error writing file %s:\n%s"),
TEXT(filename.c_str()),res.message());
MessageBox (GetActiveWindow(), szBuffer, TEXT("Warning"),
MB_OK | MB_ICONWARNING) ;
}
if(!_options->getIncludeImageDataInIveFile()){
// Turn readerwriter options off again.
osgDB::ReaderWriter::Options* opt = new osgDB::ReaderWriter::Options();
osgDB::Registry::instance()->setOptions(opt);
}
}
else{
if(_options->getShowErrMsg()){
std::string error("Can not find plugin to save file: ");
error.append(name);
MessageBox (GetActiveWindow(), error.c_str() , TEXT("Warning"), MB_OK | MB_ICONWARNING) ;
}
}
_ip->ProgressEnd();
}
// Show quick preview
if(_options->getQuickView()){
float fNear = 1.0f;
float fFar = 1000.0f;
// Get the active viewport and the win32 window within it.
// The position and size will be retreive from this.
ViewExp* viewExp = _ip->GetActiveViewport();
float fov = viewExp->GetFOV();
HWND hWnd = viewExp->getGW()->getHWnd();
RECT sRect;
BOOL ok = GetWindowRect(hWnd, &sRect);
int width = 100;
int height = 100;
int x =100;
int y =100;
if(ok){
x = sRect.left;
y = sRect.top;
width = sRect.right - sRect.left;
height = sRect.bottom - sRect.top;
}
// Create previewer window and set size.
Previewer previewer;
previewer.setWindowSize(x, y, width, height);
// The affine TM transforms from world coords to view coords
// so we need the inverse of this matrix
Matrix3 aTM, camTM, coordSysTM;
Point3 viewDir, viewPos, lookAtPos, upVector;
INode* camera;
float dist = 100;
Point3 upperLeft = viewExp->MapScreenToView(IPoint2(0, 0), fFar);
Point3 lowerRight = viewExp->MapScreenToView(IPoint2(width, height), fFar);
viewExp->GetAffineTM(aTM);
coordSysTM = Inverse(aTM);
viewDir = coordSysTM.VectorTransform(Point3(0.0f, 0.0f, -1.0f));
viewPos = coordSysTM.GetRow(3);
lookAtPos = viewPos + viewDir;
upVector.Set(0.0f, 0.0f, 1.0f);
switch(viewExp->GetViewType()){
case VIEW_ISO_USER:
case VIEW_PERSP_USER:
previewer.setProjectionMatrixAsFrustum(lowerRight.x, upperLeft.x, upperLeft.y, lowerRight.y, fFar, -fFar);
break;
case VIEW_CAMERA:
previewer.setProjectionMatrixAsFrustum(upperLeft.x, lowerRight.x, lowerRight.y, upperLeft.y, fFar, -fFar);
camera = viewExp->GetViewCamera();
camTM = camera->GetObjTMBeforeWSM(_ip->GetTime());
viewDir = camTM.VectorTransform(Point3(0.0f, 0.0f, -1.0f));
viewPos = camTM.GetRow(3);
lookAtPos = viewPos + viewDir;
break;
case VIEW_LEFT:
case VIEW_RIGHT:
case VIEW_TOP:
case VIEW_BOTTOM:
case VIEW_FRONT:
case VIEW_BACK:
previewer.setProjectionMatrixAsOrtho(upperLeft.x, lowerRight.x, lowerRight.y, upperLeft.y, -fFar, fFar);
//cam->setOrtho(upperLeft.x, lowerRight.x, lowerRight.y, upperLeft.y, -fFar, fFar);
// Go far away from the viewing point in the negative viewing direction.
viewPos = coordSysTM.PointTransform(Point3(0.0f, 0.0f, fFar));
lookAtPos = viewPos + viewDir;
// In top view the up vector on the camera is the positive y-axis.
if(viewExp->GetViewType() == VIEW_TOP)
upVector.Set(0.0f, 1.0f, 0.0f);
// In bottom view the up vector on the camera is the negative y-axis.
if(viewExp->GetViewType() == VIEW_BOTTOM)
upVector.Set(0.0f, -1.0f, 0.0f);
break;
}
// When we are done with the viewport we should release it.
_ip->ReleaseViewport(viewExp);
// Set scene data.
previewer.setSceneData(rootTransform.get());
// set the view - OpenGL look at
previewer.setViewMatrixAsLookAt(osg::Vec3( viewPos.x, viewPos.y, viewPos.z),
osg::Vec3(lookAtPos.x, lookAtPos.y, lookAtPos.z),
osg::Vec3(upVector.x, upVector.y, upVector.z) );
previewer.run();
isExporting = FALSE;
return TRUE;
}
}
isExporting = FALSE;
return TRUE;
}
