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Reduce the number of StateSets created for NIF scene graphs

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The Material state is now set on the NiTriShape's node rather than the Geode, thus merged with other state like NiTexturingProperties, etc that are typically attached to the NiTriShape.

Effectively cuts in half the number of StatSets for a NIF file, resulting in big speedup (~10%) in the Cull and Draw phases.
This commit is contained in:
scrawl 2015-06-14 21:22:44 +02:00
parent b204396b57
commit 9e049894e8
1 changed files with 18 additions and 20 deletions
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38
components/nifosg/nifloader.cpp
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@ -525,20 +525,20 @@ namespace NifOsg
{
const Nif::NiTriShape* triShape = static_cast<const Nif::NiTriShape*>(nifNode);
if (triShape->skin.empty())
handleTriShape(triShape, transformNode, boundTextures, animflags);
handleTriShape(triShape, transformNode, composite, boundTextures, animflags);
else
handleSkinnedTriShape(triShape, transformNode, boundTextures, animflags);
handleSkinnedTriShape(triShape, transformNode, composite, boundTextures, animflags);
if (!nifNode->controller.empty())
handleMeshControllers(nifNode, composite, boundTextures, animflags);
}
if(nifNode->recType == Nif::RC_NiAutoNormalParticles || nifNode->recType == Nif::RC_NiRotatingParticles)
handleParticleSystem(nifNode, transformNode, composite, animflags, particleflags, rootNode);
if (composite->getNumControllers() > 0)
transformNode->addUpdateCallback(composite);
if(nifNode->recType == Nif::RC_NiAutoNormalParticles || nifNode->recType == Nif::RC_NiRotatingParticles)
handleParticleSystem(nifNode, transformNode, animflags, particleflags, rootNode);
if (!nifNode->controller.empty())
handleNodeControllers(nifNode, transformNode, animflags);
@ -606,9 +606,8 @@ namespace NifOsg
}
}
static void handleMaterialControllers(const Nif::Property *materialProperty, osg::Node* node, int animflags)
static void handleMaterialControllers(const Nif::Property *materialProperty, osg::Node* node, SceneUtil::CompositeStateSetUpdater* composite, int animflags)
{
osg::ref_ptr<SceneUtil::CompositeStateSetUpdater> composite = new SceneUtil::CompositeStateSetUpdater;
for (Nif::ControllerPtr ctrl = materialProperty->controller; !ctrl.empty(); ctrl = ctrl->next)
{
if (!(ctrl->flags & Nif::NiNode::ControllerFlag_Active))
@ -630,8 +629,6 @@ namespace NifOsg
else
std::cerr << "Unexpected material controller " << ctrl->recType << std::endl;
}
if (composite->getNumControllers() > 0)
node->addUpdateCallback(composite);
}
static void handleTextureControllers(const Nif::Property *texProperty, SceneUtil::CompositeStateSetUpdater* composite, Resource::TextureManager* textureManager, osg::StateSet *stateset, int animflags)
@ -789,7 +786,7 @@ namespace NifOsg
return emitter;
}
static void handleParticleSystem(const Nif::Node *nifNode, osg::Group *parentNode, int animflags, int particleflags, osg::Node* rootNode)
static void handleParticleSystem(const Nif::Node *nifNode, osg::Group *parentNode, SceneUtil::CompositeStateSetUpdater* composite, int animflags, int particleflags, osg::Node* rootNode)
{
osg::ref_ptr<ParticleSystem> partsys (new ParticleSystem);
partsys->setSortMode(osgParticle::ParticleSystem::SORT_BACK_TO_FRONT);
@ -863,10 +860,10 @@ namespace NifOsg
std::vector<const Nif::Property*> materialProps;
collectMaterialProperties(nifNode, materialProps);
applyMaterialProperties(geode, materialProps, true, animflags);
applyMaterialProperties(parentNode, materialProps, composite, true, animflags);
// Particles don't have normals, so can't be diffuse lit.
osg::Material* mat = static_cast<osg::Material*>(geode->getStateSet()->getAttribute(osg::StateAttribute::MATERIAL));
osg::Material* mat = static_cast<osg::Material*>(parentNode->getStateSet()->getAttribute(osg::StateAttribute::MATERIAL));
if (mat)
{
osg::Vec4f diffuse = mat->getDiffuse(osg::Material::FRONT_AND_BACK);
@ -891,7 +888,7 @@ namespace NifOsg
}
}
static void triShapeToGeometry(const Nif::NiTriShape *triShape, osg::Geometry *geometry, osg::Geode* parentGeode, const std::map<int, int>& boundTextures, int animflags)
static void triShapeToGeometry(const Nif::NiTriShape *triShape, osg::Geometry *geometry, osg::Node* parentNode, SceneUtil::CompositeStateSetUpdater* composite, const std::map<int, int>& boundTextures, int animflags)
{
const Nif::NiTriShapeData* data = triShape->data.getPtr();
@ -928,10 +925,10 @@ namespace NifOsg
// above the actual renderable would be tedious.
std::vector<const Nif::Property*> materialProps;
collectMaterialProperties(triShape, materialProps);
applyMaterialProperties(parentGeode, materialProps, !data->colors.empty(), animflags);
applyMaterialProperties(parentNode, materialProps, composite, !data->colors.empty(), animflags);
}
static void handleTriShape(const Nif::NiTriShape* triShape, osg::Group* parentNode, const std::map<int, int>& boundTextures, int animflags)
static void handleTriShape(const Nif::NiTriShape* triShape, osg::Group* parentNode, SceneUtil::CompositeStateSetUpdater* composite, const std::map<int, int>& boundTextures, int animflags)
{
osg::ref_ptr<osg::Geometry> geometry;
if(!triShape->controller.empty())
@ -955,7 +952,7 @@ namespace NifOsg
geometry = new osg::Geometry;
osg::ref_ptr<osg::Geode> geode (new osg::Geode);
triShapeToGeometry(triShape, geometry, geode, boundTextures, animflags);
triShapeToGeometry(triShape, geometry, parentNode, composite, boundTextures, animflags);
geode->addDrawable(geometry);
@ -1029,12 +1026,13 @@ namespace NifOsg
return morphGeom;
}
static void handleSkinnedTriShape(const Nif::NiTriShape *triShape, osg::Group *parentNode, const std::map<int, int>& boundTextures, int animflags)
static void handleSkinnedTriShape(const Nif::NiTriShape *triShape, osg::Group *parentNode, SceneUtil::CompositeStateSetUpdater* composite,
const std::map<int, int>& boundTextures, int animflags)
{
osg::ref_ptr<osg::Geode> geode (new osg::Geode);
osg::ref_ptr<osg::Geometry> geometry (new osg::Geometry);
triShapeToGeometry(triShape, geometry, geode, boundTextures, animflags);
triShapeToGeometry(triShape, geometry, parentNode, composite, boundTextures, animflags);
osg::ref_ptr<SceneUtil::RigGeometry> rig(new SceneUtil::RigGeometry);
rig->setSourceGeometry(geometry);
@ -1275,7 +1273,7 @@ namespace NifOsg
}
}
static void applyMaterialProperties(osg::Node* node, const std::vector<const Nif::Property*>& properties,
static void applyMaterialProperties(osg::Node* node, const std::vector<const Nif::Property*>& properties, SceneUtil::CompositeStateSetUpdater* composite,
bool hasVertexColors, int animflags)
{
osg::StateSet* stateset = node->getOrCreateStateSet();
@ -1310,7 +1308,7 @@ namespace NifOsg
mat->setShininess(osg::Material::FRONT_AND_BACK, matprop->data.glossiness);
if (!matprop->controller.empty())
handleMaterialControllers(matprop, node, animflags);
handleMaterialControllers(matprop, node, composite, animflags);
break;
}