FGFS-4.1/simgear
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Support preview mode in the model loader.

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This makes fgviewer / fgfs --viewer mode useful with models containing Rembrandt light volumes.
This commit is contained in:
James Turner 2013-01-31 16:46:02 +00:00
parent 4d4e474464
commit 53b9fd2110
1 changed files with 66 additions and 3 deletions
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65
simgear/scene/model/SGReaderWriterXML.cxx
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@ -160,6 +160,7 @@ void makeEffectAnimations(PropertyList& animation_nodes,
SGPropertyNode* typeProp = animProp->getChild("type");
if (!typeProp)
continue;
const char* typeString = typeProp->getStringValue();
if (!strcmp(typeString, "material")) {
effectProp
@ -214,6 +215,43 @@ private:
osg::Node::NodeMask nodeMaskSet;
osg::Node::NodeMask nodeMaskClear;
};
}
namespace {
class ExcludeInPreview
{
public:
bool operator()(SGPropertyNode* aNode) const
{
string typeString(aNode->getStringValue("type"));
// exclude these so we don't show yellow outlines in preview mode
return (typeString == "pick") || (typeString == "knob");
}
};
bool removeNamedNode(osg::Group* aGroup, const std::string& aName)
{
int nKids = aGroup->getNumChildren();
for (int i = 0; i < nKids; i++) {
osg::Node* child = aGroup->getChild(i);
if (child->getName() == aName) {
aGroup->removeChild(child);
return true;
}
}
for (int i = 0; i < nKids; i++) {
osg::Group* childGroup = aGroup->getChild(i)->asGroup();
if (!childGroup)
continue;
if (removeNamedNode(childGroup, aName))
return true;
} // of child groups traversal
return false;
}
}
static osg::Node *
@ -243,6 +281,7 @@ sgLoad3DModel_internal(const SGPath& path,
osg::ref_ptr<osg::Node> model;
osg::ref_ptr<osg::Group> group;
SGPropertyNode_ptr props = new SGPropertyNode;
bool previewMode = (dbOptions->getPluginStringData("SimGear::PREVIEW") == "ON");
// Check for an XML wrapper
if (modelpath.extension() == "xml") {
@ -256,6 +295,10 @@ sgLoad3DModel_internal(const SGPath& path,
if (overlay)
copyProperties(overlay, props);
if (previewMode && props->hasChild("nopreview")) {
return NULL;
}
if (props->hasValue("/path")) {
string modelPathStr = props->getStringValue("/path");
modelpath = SGModelLib::findDataFile(modelPathStr, NULL, modelDir);
@ -375,6 +418,9 @@ sgLoad3DModel_internal(const SGPath& path,
continue;
}
if (!submodel)
continue;
osg::ref_ptr<osg::Node> submodel_final = submodel;
SGPropertyNode *offs = sub_props->getNode("offsets", false);
if (offs) {
@ -454,6 +500,13 @@ sgLoad3DModel_internal(const SGPath& path,
PropertyList effect_nodes = props->getChildren("effect");
PropertyList animation_nodes = props->getChildren("animation");
if (previewMode) {
PropertyList::iterator it;
it = std::remove_if(animation_nodes.begin(), animation_nodes.end(), ExcludeInPreview());
animation_nodes.erase(it, animation_nodes.end());
}
// Some material animations (eventually all) are actually effects.
makeEffectAnimations(animation_nodes, effect_nodes);
{
@ -462,10 +515,20 @@ sgLoad3DModel_internal(const SGPath& path,
group = static_cast<Group*>(modelWithEffects.get());
}
for (unsigned i = 0; i < animation_nodes.size(); ++i)
for (unsigned i = 0; i < animation_nodes.size(); ++i) {
if (previewMode && animation_nodes[i]->hasChild("nopreview")) {
PropertyList names(animation_nodes[i]->getChildren("object-name"));
for (unsigned int n=0; n<names.size(); ++n) {
std::cout << "remove object name:" << names[n]->getStringValue() << std::endl;
removeNamedNode(group, names[n]->getStringValue());
} // of object-names in the animation
continue;
}
/// OSGFIXME: duh, why not only model?????
SGAnimation::animate(group.get(), animation_nodes[i], prop_root,
options.get(), path.str(), i);
}
if (!needTransform && group->getNumChildren() < 2) {
model = group->getChild(0);