bool ColladaSceneNode::IsAnimated(FCDSceneNode * originalNode)
{
for (int t = 0; t < (int)originalNode->GetTransformCount(); ++t)
{
FCDTransform * transform = originalNode->GetTransform(t);
if (transform->IsAnimated()) // process all animations to make CalculateWorldTransform work
{
return true;
}
if (transform->GetType() == FCDTransform::TRANSLATION)
{
FCDTTranslation * translation = dynamic_cast<FCDTTranslation*>(transform);
if (translation->IsAnimated())
{
return true;
}
}else if (transform->GetType() == FCDTransform::ROTATION)
{
FCDTRotation * rotation = dynamic_cast<FCDTRotation*>(transform);
if (rotation->IsAnimated())
{
return true;
}
}
}
return false;
}
void CModelConverter::ReadDAESceneTree(FCDSceneNode* pNode, CConversionSceneNode* pScene)
{
size_t iTransforms = pNode->GetTransformCount();
Matrix4x4 mTransformations;
for (size_t t = 0; t < iTransforms; t++)
{
FCDTransform* pTransform = pNode->GetTransform(t);
FMMatrix44 m = pTransform->ToMatrix();
mTransformations *= Matrix4x4(m);
}
pScene->SetTransformations(mTransformations);
size_t iInstances = pNode->GetInstanceCount();
for (size_t i = 0; i < iInstances; i++)
{
FCDEntityInstance* pInstance = pNode->GetInstance(i);
switch (pInstance->GetType())
{
case FCDEntityInstance::GEOMETRY:
{
FCDGeometryInstance* pGeometryInstance = dynamic_cast<FCDGeometryInstance*>(pInstance);
FCDEntity* pEntity = pGeometryInstance->GetEntity();
size_t iMesh = pScene->m_pScene->FindMesh(convert_from_fstring(pEntity->GetName()));
size_t iMeshInstance = pScene->AddMeshInstance(iMesh);
size_t iMaterialInstances = pGeometryInstance->GetMaterialInstanceCount();
for (size_t m = 0; m < iMaterialInstances; m++)
{
FCDMaterialInstance* pMaterialInstance = pGeometryInstance->GetMaterialInstance(m);
FCDMaterial* pMaterial = pMaterialInstance->GetMaterial();
tstring sMaterial = pMaterial?convert_from_fstring(pMaterialInstance->GetMaterial()->GetName()):"";
tstring sMaterialStub = convert_from_fstring(pMaterialInstance->GetSemantic());
size_t iMaterial = pScene->m_pScene->FindMaterial(sMaterial);
size_t iMaterialStub = pScene->m_pScene->GetMesh(iMesh)->FindMaterialStub(sMaterialStub);
pScene->GetMeshInstance(iMeshInstance)->AddMappedMaterial(iMaterialStub, iMaterial);
}
}
}
}
size_t iChildren = pNode->GetChildrenCount();
for (size_t j = 0; j < iChildren; j++)
{
FCDSceneNode* pChildNode = pNode->GetChild(j);
size_t iNode = pScene->AddChild(convert_from_fstring(pChildNode->GetName()));
ReadDAESceneTree(pChildNode, pScene->GetChild(iNode));
}
}
void GenerateSampledAnimation(FCDSceneNode* node)
{
sampleKeys.clear();
sampleValues.clear();
FCDAnimatedList animateds;
// Special case for rotation angles: need to check for changes that are greater than 180 degrees.
Int32List angleIndices;
// Collect all the animation curves
size_t transformCount = node->GetTransformCount();
for (size_t t = 0; t < transformCount; ++t)
{
FCDTransform* transform = node->GetTransform(t);
FCDAnimated* animated = transform->GetAnimated();
if (animated != NULL)
{
if (animated->HasCurve()) animateds.push_back(animated);
// Figure out whether this is a rotation and then, which animated value contains the angle.
if (!transform->HasType(FCDTRotation::GetClassType())) angleIndices.push_back(-1);
else angleIndices.push_back((int32) animated->FindQualifier(".ANGLE"));
}
}
if (animateds.empty()) return;
// Make a list of the ordered key times to sample
size_t animatedsCount = animateds.size();
for (size_t i = 0; i < animatedsCount; ++i)
{
FCDAnimated* animated = animateds[i];
int32 angleIndex = angleIndices[i];
const FCDAnimationCurveListList& allCurves = animated->GetCurves();
size_t valueCount = allCurves.size();
for (size_t curveIndex = 0; curveIndex < valueCount; ++curveIndex)
{
const FCDAnimationCurveTrackList& curves = allCurves[curveIndex];
if (curves.empty()) continue;
size_t curveKeyCount = curves.front()->GetKeyCount();
const FCDAnimationKey** curveKeys = curves.front()->GetKeys();
size_t sampleKeyCount = sampleKeys.size();
// Merge this curve's keys in with the sample keys
// This assumes both key lists are in increasing order
size_t s = 0, c = 0;
while (s < sampleKeyCount && c < curveKeyCount)
{
float sampleKey = sampleKeys[s], curveKey = curveKeys[c]->input;
if (IsEquivalent(sampleKey, curveKey)) { ++s; ++c; }
else if (sampleKey < curveKey) { ++s; }
else
{
// Add this curve key to the sampling key list
sampleKeys.insert(sampleKeys.begin() + (s++), curveKeys[c++]->input);
sampleKeyCount++;
}
}
// Add all the left-over curve keys to the sampling key list
while (c < curveKeyCount) sampleKeys.push_back(curveKeys[c++]->input);
// Check for large angular rotations..
if (angleIndex == (intptr_t) curveIndex)
{
for (size_t c = 1; c < curveKeyCount; ++c)
{
const FCDAnimationKey* previousKey = curveKeys[c - 1];
const FCDAnimationKey* currentKey = curveKeys[c];
float halfWrapAmount = (currentKey->output - previousKey->output) / 180.0f;
halfWrapAmount *= FMath::Sign(halfWrapAmount);
if (halfWrapAmount >= 1.0f)
{
// Need to add sample times.
size_t addSampleCount = (size_t) floorf(halfWrapAmount);
for (size_t d = 1; d <= addSampleCount; ++d)
{
float fd = (float) d;
float fid = (float) (addSampleCount + 1 - d);
float addSampleTime = (currentKey->input * fd + previousKey->input * fid) / (fd + fid);
// Sorted insert.
float* endIt = sampleKeys.end();
for (float* sampleKeyTime = sampleKeys.begin(); sampleKeyTime != endIt; ++sampleKeyTime)
{
if (IsEquivalent(*sampleKeyTime, addSampleTime)) break;
else if (*sampleKeyTime > addSampleTime)
{
sampleKeys.insert(sampleKeyTime, addSampleTime);
break;
}
}
}
}
}
}
}
}
size_t sampleKeyCount = sampleKeys.size();
if (sampleKeyCount == 0) return;
// Pre-allocate the value array;
sampleValues.reserve(sampleKeyCount);
// Sample the scene node transform
for (size_t i = 0; i < sampleKeyCount; ++i)
{
float sampleTime = sampleKeys[i];
for (FCDAnimatedList::iterator it = animateds.begin(); it != animateds.end(); ++it)
{
// Sample each animated, which changes the transform values directly
(*it)->Evaluate(sampleTime);
}
// Retrieve the new transform matrix for the COLLADA scene node
sampleValues.push_back(node->ToMatrix());
}
}
FMMatrix44 ColladaSceneNode::CalculateTransformForTime(FCDSceneNode * originalNode, float32 time)
{
FMMatrix44 colladaLocalMatrix;
colladaLocalMatrix = FMMatrix44::Identity;// = FMMatrix44::Identity();
for (int t = 0; t < (int)originalNode->GetTransformCount(); ++t)
{
FCDTransform * transform = originalNode->GetTransform(t);
if (transform->IsAnimated()) // process all animations to make CalculateWorldTransform work
{
FCDAnimated * animated = transform->GetAnimated();
animated->Evaluate(time);
}
if (transform->GetType() == FCDTransform::TRANSLATION)
{
FCDTTranslation * translation = dynamic_cast<FCDTTranslation*>(transform);
FMVector3 point = FMVector3(0.0f, 0.0f, 0.0f);
point = translation->GetTranslation();
if (transform->IsAnimated())
{
FCDAnimationCurve* curve;
// look for x animation
curve = transform->GetAnimated()->FindCurve(".X");
if (curve != 0)
point.x = curve->Evaluate(time);
// look for y animation
curve = transform->GetAnimated()->FindCurve(".Y");
if (curve != 0)
point.y = curve->Evaluate(time);
// look for z animation
curve = transform->GetAnimated()->FindCurve(".Z");
if (curve != 0)
point.z = curve->Evaluate(time);
}
colladaLocalMatrix = colladaLocalMatrix * FMMatrix44::TranslationMatrix(point);
}else if (transform->GetType() == FCDTransform::ROTATION)
{
FCDTRotation * rotation = dynamic_cast<FCDTRotation*>(transform);
FMVector3 axis = FMVector3(0.0f, 0.0f, 0.0f);
float angle = 0;
axis = rotation->GetAxis();
angle = rotation->GetAngle();
if (rotation->IsAnimated())
{
FCDAnimationCurve* curve;
// look for x animation
curve = rotation->GetAnimated()->FindCurve(".X");
if (curve != 0)
axis.x = curve->Evaluate(time);
// look for y animation
curve = rotation->GetAnimated()->FindCurve(".Y");
if (curve != 0)
axis.y = curve->Evaluate(time);
// look for z animation
curve = rotation->GetAnimated()->FindCurve(".Z");
if (curve != 0)
axis.z = curve->Evaluate(time);
// look for z animation
curve = rotation->GetAnimated()->FindCurve(".ANGLE");
if (curve != 0)
angle = curve->Evaluate(time);
}
colladaLocalMatrix = colladaLocalMatrix * FMMatrix44::AxisRotationMatrix(axis, angle * PI / 180.0f);
}else
{
colladaLocalMatrix = colladaLocalMatrix * transform->ToMatrix();
}
}
return colladaLocalMatrix;
}
bool FArchiveXML::LoadPhysicsShape(FCDObject* object, xmlNode* physicsShapeNode)
{
FCDPhysicsShape* physicsShape = (FCDPhysicsShape*)object;
bool status = true;
if (!IsEquivalent(physicsShapeNode->name, DAE_SHAPE_ELEMENT))
{
FUError::Error(FUError::WARNING_LEVEL, FUError::WARNING_UNKNOW_PS_LIB_ELEMENT, physicsShapeNode->line);
return status;
}
// Read in the first valid child element found
for (xmlNode* child = physicsShapeNode->children; child != NULL; child = child->next)
{
if (child->type != XML_ELEMENT_NODE) continue;
if (IsEquivalent(child->name, DAE_HOLLOW_ELEMENT))
{
physicsShape->SetHollow(FUStringConversion::ToBoolean(ReadNodeContentDirect(child)));
}
else if (IsEquivalent(child->name, DAE_MASS_ELEMENT))
{
physicsShape->SetMass(FUStringConversion::ToFloat(ReadNodeContentDirect(child)));
physicsShape->SetDensityMoreAccurate(false);
}
else if (IsEquivalent(child->name, DAE_DENSITY_ELEMENT))
{
physicsShape->SetDensity(FUStringConversion::ToFloat(ReadNodeContentDirect(child)));
physicsShape->SetDensityMoreAccurate(physicsShape->GetMassPointer() == NULL); // mass before density in COLLADA 1.4.1
}
else if (IsEquivalent(child->name, DAE_PHYSICS_MATERIAL_ELEMENT))
{
FCDPhysicsMaterial* material = physicsShape->AddOwnPhysicsMaterial();
FArchiveXML::LoadPhysicsMaterial(material, child);
}
else if (IsEquivalent(child->name,
DAE_INSTANCE_PHYSICS_MATERIAL_ELEMENT))
{
physicsShape->SetInstanceMaterial(FCDEntityInstanceFactory::CreateInstance(physicsShape->GetDocument(), NULL, FCDEntity::PHYSICS_MATERIAL));
FArchiveXML::LoadSwitch(physicsShape->GetInstanceMaterial(),
&physicsShape->GetInstanceMaterial()->GetObjectType(),
child);
if (!HasNodeProperty(child, DAE_URL_ATTRIBUTE))
{
//inline definition of physics_material
FCDPhysicsMaterial* material = physicsShape->AddOwnPhysicsMaterial();
FArchiveXML::LoadPhysicsMaterial(material, child);
physicsShape->GetInstanceMaterial()->SetEntity(material);
}
}
else if (IsEquivalent(child->name, DAE_INSTANCE_GEOMETRY_ELEMENT))
{
FUUri url = ReadNodeUrl(child);
if (!url.IsFile())
{
FCDGeometry* entity = physicsShape->GetDocument()->FindGeometry(TO_STRING(url.GetFragment()));
if (entity != NULL)
{
physicsShape->SetAnalyticalGeometry(NULL);
physicsShape->SetGeometryInstance((FCDGeometryInstance*)FCDEntityInstanceFactory::CreateInstance(physicsShape->GetDocument(), NULL, FCDEntity::GEOMETRY));
physicsShape->GetGeometryInstance()->SetEntity((FCDEntity*)entity);
status &= (FArchiveXML::LoadGeometryInstance(physicsShape->GetGeometryInstance(), child));
continue;
}
}
FUError::Error(FUError::WARNING_LEVEL, FUError::WARNING_FCDGEOMETRY_INST_MISSING, child->line);
}
#define PARSE_ANALYTICAL_SHAPE(type, nodeName) \
else if (IsEquivalent(child->name, nodeName)) { \
FCDPhysicsAnalyticalGeometry* analytical = physicsShape->CreateAnalyticalGeometry(FCDPhysicsAnalyticalGeometry::type); \
status = FArchiveXML::LoadPhysicsAnalyticalGeometry(analytical, child); \
if (!status) { \
FUError::Error(FUError::WARNING_LEVEL, FUError::WARNING_INVALID_SHAPE_NODE, child->line); break; \
} }
PARSE_ANALYTICAL_SHAPE(BOX, DAE_BOX_ELEMENT)
PARSE_ANALYTICAL_SHAPE(PLANE, DAE_PLANE_ELEMENT)
PARSE_ANALYTICAL_SHAPE(SPHERE, DAE_SPHERE_ELEMENT)
PARSE_ANALYTICAL_SHAPE(CYLINDER, DAE_CYLINDER_ELEMENT)
PARSE_ANALYTICAL_SHAPE(CAPSULE, DAE_CAPSULE_ELEMENT)
PARSE_ANALYTICAL_SHAPE(TAPERED_CAPSULE, DAE_TAPERED_CAPSULE_ELEMENT)
PARSE_ANALYTICAL_SHAPE(TAPERED_CYLINDER, DAE_TAPERED_CYLINDER_ELEMENT)
#undef PARSE_ANALYTICAL_SHAPE
// Parse the physics shape transforms <rotate>, <translate> are supported.
else if (IsEquivalent(child->name, DAE_ASSET_ELEMENT)) {}
else if (IsEquivalent(child->name, DAE_EXTRA_ELEMENT)) {}
else
{
uint32 transformType = FArchiveXML::GetTransformType(child);
if (transformType == FCDTransform::TRANSLATION || transformType == FCDTransform::ROTATION)
{
FCDTransform* transform = physicsShape->AddTransform((FCDTransform::Type) transformType);
status &= (FArchiveXML::LoadSwitch(transform, &transform->GetObjectType(), child));
}
}
}
if ((physicsShape->GetMassPointer() == NULL) && (physicsShape->GetDensityPointer() == NULL))
{
physicsShape->SetDensity(1.0f);
physicsShape->SetDensityMoreAccurate(true);
}
// default value if only one is defined.
if ((physicsShape->GetMassPointer() == NULL) && (physicsShape->GetDensityPointer() != NULL))
{
physicsShape->SetMass(physicsShape->GetDensity() * physicsShape->CalculateVolume());
}
else if ((physicsShape->GetMassPointer() != NULL) && (physicsShape->GetDensityPointer() == NULL))
{
physicsShape->SetDensity(physicsShape->GetMass() / physicsShape->CalculateVolume());
}
physicsShape->SetDirtyFlag();
return status;
}
bool FArchiveXML::LoadSceneNode(FCDObject* object, xmlNode* node)
{
if (!FArchiveXML::LoadEntity(object, node)) return false;
bool status = true;
FCDSceneNode* sceneNode = (FCDSceneNode*)object;
if (!IsEquivalent(node->name, DAE_VSCENE_ELEMENT) && !IsEquivalent(node->name, DAE_NODE_ELEMENT))
{
FUError::Error(FUError::ERROR_LEVEL, FUError::ERROR_UNKNOWN_ELEMENT, node->line);
}
// Read a subid if we gots one
fm::string nodeSubId = ReadNodeProperty(node, DAE_SID_ATTRIBUTE);
sceneNode->SetSubId(nodeSubId);
// Read in the <node> element's type
fm::string nodeType = ReadNodeProperty(node, DAE_TYPE_ATTRIBUTE);
if (nodeType == DAE_JOINT_NODE_TYPE) sceneNode->SetJointFlag(true);
else if (nodeType.length() == 0 || nodeType == DAE_NODE_NODE_TYPE) {} // No special consideration
else
{
FUError::Error(FUError::WARNING_LEVEL, FUError::WARNING_UNKNOW_NODE_ELEMENT_TYPE, node->line);
}
// The scene node has ordered elements, so process them directly and in order.
for (xmlNode* child = node->children; child != NULL; child = child->next)
{
if (child->type != XML_ELEMENT_NODE) continue;
if (IsEquivalent(child->name, DAE_NODE_ELEMENT))
{
// Load the child scene node
FCDSceneNode* node = sceneNode->AddChildNode();
status = FArchiveXML::LoadSceneNode(node, child);
if (!status) break;
}
// Although this case can be handled by FCDEntityInstanceFactory,
// we can do some special case handling here.
else if (IsEquivalent(child->name, DAE_INSTANCE_NODE_ELEMENT))
{
FUUri url = ReadNodeUrl(child);
if (!url.IsFile())
{
// cannot find the node
FCDSceneNode* node = sceneNode->GetDocument()->FindSceneNode(TO_STRING(url.GetFragment()));
if (node != NULL)
{
if (!sceneNode->AddChildNode(node))
{
FUError::Error(FUError::WARNING_LEVEL, FUError::WARNING_CYCLE_DETECTED, child->line);
}
}
else
{
FUError::Error(FUError::WARNING_LEVEL, FUError::WARNING_INVALID_NODE_INST, child->line);
}
}
else
{
FCDEntityInstance* reference = sceneNode->AddInstance(FCDEntity::SCENE_NODE);
FArchiveXML::LoadEntityInstance(reference, child);
}
}
else if (IsEquivalent(child->name, DAE_EXTRA_ELEMENT)) {} // Handled by FCDEntity.
else if (IsEquivalent(child->name, DAE_ASSET_ELEMENT)) {} // Handled by FCDEntity.
else
{
uint32 transformType = FArchiveXML::GetTransformType(child);
if (transformType != (uint32) ~0)
{
FCDTransform* transform = sceneNode->AddTransform((FCDTransform::Type) transformType);
fm::string childSubId = ReadNodeProperty(child, DAE_SID_ATTRIBUTE);
transform->SetSubId(childSubId);
status &= (FArchiveXML::LoadSwitch(transform, &transform->GetObjectType(), child));
}
else
{
uint32 instanceType = FArchiveXML::GetEntityInstanceType(child);
if (instanceType != (uint32) ~0)
{
FCDEntityInstance* instance = sceneNode->AddInstance((FCDEntity::Type) instanceType);
status &= (FArchiveXML::LoadSwitch(instance, &instance->GetObjectType(), child));
}
else
{
FUError::Error(FUError::WARNING_LEVEL, FUError::WARNING_INVALID_TRANSFORM, child->line);
}
}
}
}
status &= FArchiveXML::LoadFromExtraSceneNode(sceneNode);
sceneNode->SetTransformsDirtyFlag();
sceneNode->SetDirtyFlag();
return status;
}