// Get the animated parameters of a camera contained in the scene
// and store them in the associated member variables contained in
// the camera.
void Scene::getCameraAnimatedParameters(KFbxNode* pNode, KTime time)
{
KFbxCamera* lCamera = (KFbxCamera*) pNode->GetNodeAttribute();
lCamera->Position.Set(getGlobalPosition(pNode, time).GetT());
KFbxAnimCurve* fc = lCamera->Roll.GetCurve<KFbxAnimCurve>(currentAnimationLayer);
if (fc)
lCamera->Roll.Set(fc->Evaluate(time));
if (lCamera->GetApertureMode() == KFbxCamera::eHORIZONTAL ||
lCamera->GetApertureMode() == KFbxCamera::eVERTICAL)
{
fc = lCamera->FieldOfView.GetCurve<KFbxAnimCurve>(currentAnimationLayer);
if (fc)
lCamera->FieldOfView.Set(fc->Evaluate(time));
}
else if (lCamera->GetApertureMode() == KFbxCamera::eHORIZONTAL_AND_VERTICAL)
{
// In this aperture mode, the squeeze ratio is not relevant
// because the fields of view in X and Y are independent.
// It's value is set to retrieve the proper aspect in function SetCamera().
//
// if:
//
// aspect = field of view X / field of view Y = aperture width * squeeze ratio / aperture height
//
// then:
//
// squeeze ratio = (field of view X * aperture height) / (field of view Y * aperture width)
//
double lFieldOfViewX = lCamera->FieldOfViewX.Get();
double lFieldOfViewY = lCamera->FieldOfViewY.Get();
fc = lCamera->FieldOfViewX.GetCurve<KFbxAnimCurve>(currentAnimationLayer);
if (fc)
lFieldOfViewX = fc->Evaluate(time);
fc = lCamera->FieldOfViewY.GetCurve<KFbxAnimCurve>(currentAnimationLayer);
if (fc)
lFieldOfViewY = fc->Evaluate(time);
double lSqueezeRatio = (lFieldOfViewX * lCamera->GetApertureHeight()) / (lFieldOfViewY * lCamera->GetApertureWidth());
lCamera->FieldOfViewX.Set(lFieldOfViewX);
lCamera->FieldOfViewY.Set(lFieldOfViewY);
lCamera->SetSqueezeRatio(lSqueezeRatio);
}
else if (lCamera->GetApertureMode() == KFbxCamera::eFOCAL_LENGTH)
{
double lFocalLength = lCamera->FocalLength.Get();
fc = lCamera->FocalLength.GetCurve<KFbxAnimCurve>(currentAnimationLayer);
if (fc && fc ->Evaluate(time))
lCamera->FocalLength.Set(lFocalLength);
}
}
void readAnimation(KFbxNode* pNode, KFbxScene& fbxScene, const std::string& targetName,
osg::ref_ptr<osgAnimation::AnimationManagerBase>& pAnimationManager,
KFbxMesh* pMesh, int nBlendShape, int nBlendShapeChannel, int nShape)
{
for (int i = 0; i < fbxScene.GetSrcObjectCount(FBX_TYPE(KFbxAnimStack)); ++i)
{
KFbxAnimStack* pAnimStack = KFbxCast<KFbxAnimStack>(fbxScene.GetSrcObject(FBX_TYPE(KFbxAnimStack), i));
int nbAnimLayers = pAnimStack->GetMemberCount(FBX_TYPE(KFbxAnimLayer));
const char* pTakeName = pAnimStack->GetName();
if (!pTakeName || !*pTakeName)
continue;
for (int j = 0; j < nbAnimLayers; j++)
{
KFbxAnimLayer* pAnimLayer = pAnimStack->GetMember(FBX_TYPE(KFbxAnimLayer), j);
KFbxAnimCurve* pCurve = pMesh->GetShapeChannel(nBlendShape, nBlendShapeChannel, pAnimLayer, false);
if (!pCurve)
{
continue;
}
int nKeys = pCurve->KeyGetCount();
if (!nKeys)
{
continue;
}
osgAnimation::FloatLinearChannel* pChannel = new osgAnimation::FloatLinearChannel;
std::vector<osgAnimation::TemplateKeyframe<float> >& keyFrameCntr = *pChannel->getOrCreateSampler()->getOrCreateKeyframeContainer();
for (int k = 0; k < nKeys; ++k)
{
KFbxAnimCurveKey key = pCurve->KeyGet(k);
double fTime = key.GetTime().GetSecondDouble();
float fValue = static_cast<float>(key.GetValue() * 0.01);
keyFrameCntr.push_back(osgAnimation::FloatKeyframe(fTime,fValue));
}
pChannel->setTargetName(targetName);
std::stringstream ss;
ss << nShape;
pChannel->setName(ss.str());
addChannel(pChannel, pAnimationManager, pTakeName);
}
}
}
void readKeys(KFbxAnimCurve* curveX, KFbxAnimCurve* curveY, KFbxAnimCurve* curveZ,
const fbxDouble3& defaultValue,
std::vector<osgAnimation::TemplateKeyframe<osg::Vec3> >& keyFrameCntr, float scalar = 1.0f)
{
KFbxAnimCurve* curves[3] = {curveX, curveY, curveZ};
typedef std::set<double> TimeSet;
typedef std::map<double, float> TimeFloatMap;
TimeSet times;
TimeFloatMap curveTimeMap[3];
for (int nCurve = 0; nCurve < 3; ++nCurve)
{
KFbxAnimCurve* pCurve = curves[nCurve];
int nKeys = pCurve ? pCurve->KeyGetCount() : 0;
if (!nKeys)
{
times.insert(0.0);
curveTimeMap[nCurve][0.0] = defaultValue[nCurve] * scalar;
}
for (int i = 0; i < nKeys; ++i)
{
KFbxAnimCurveKey key = pCurve->KeyGet(i);
double fTime = key.GetTime().GetSecondDouble();
times.insert(fTime);
curveTimeMap[nCurve][fTime] = static_cast<float>(key.GetValue()) * scalar;
}
}
for (TimeSet::iterator it = times.begin(); it != times.end(); ++it)
{
double fTime = *it;
osg::Vec3 val;
for (int i = 0; i < 3; ++i)
{
if (curveTimeMap[i].empty()) continue;
TimeFloatMap::iterator lb = curveTimeMap[i].lower_bound(fTime);
if (lb == curveTimeMap[i].end()) --lb;
val[i] = lb->second;
}
keyFrameCntr.push_back(osgAnimation::Vec3Keyframe(fTime, val));
}
}
void GetCameraAnimatedParameters(KFbxNode* pNode, KTime& pTime)
{
KFbxCamera* lCamera = (KFbxCamera*) pNode->GetNodeAttribute();
lCamera->Position.Set(GetGlobalPosition(pNode, pTime).GetT());
KFbxAnimCurve* fc = lCamera->Roll.GetCurve<KFbxAnimCurve>(gCurrentAnimationLayer);
if (fc)
lCamera->Roll.Set(fc->Evaluate(pTime));
if (lCamera->GetApertureMode() == KFbxCamera::eHORIZONTAL ||
lCamera->GetApertureMode() == KFbxCamera::eVERTICAL)
{
fc = lCamera->FieldOfView.GetCurve<KFbxAnimCurve>(gCurrentAnimationLayer);
if (fc)
lCamera->FieldOfView.Set(fc->Evaluate(pTime));
}
else if (lCamera->GetApertureMode() == KFbxCamera::eHORIZONTAL_AND_VERTICAL)
{
double lFieldOfViewX = lCamera->FieldOfViewX.Get();
double lFieldOfViewY = lCamera->FieldOfViewY.Get();
fc = lCamera->FieldOfViewX.GetCurve<KFbxAnimCurve>(gCurrentAnimationLayer);
if (fc)
lFieldOfViewX = fc->Evaluate(pTime);
fc = lCamera->FieldOfViewY.GetCurve<KFbxAnimCurve>(gCurrentAnimationLayer);
if (fc)
lFieldOfViewY = fc->Evaluate(pTime);
double lSqueezeRatio = (lFieldOfViewX * lCamera->GetApertureHeight()) / (lFieldOfViewY * lCamera->GetApertureWidth());
lCamera->FieldOfViewX.Set(lFieldOfViewX);
lCamera->FieldOfViewY.Set(lFieldOfViewY);
lCamera->SetSqueezeRatio(lSqueezeRatio);
}
else if (lCamera->GetApertureMode() == KFbxCamera::eFOCAL_LENGTH)
{
double lFocalLength = lCamera->FocalLength.Get();
fc = lCamera->FocalLength.GetCurve<KFbxAnimCurve>(gCurrentAnimationLayer);
if (fc && fc ->Evaluate(pTime))
lCamera->FocalLength.Set(lFocalLength);
}
}
// -- Cameras ----------------------------------------------------------------------------
KFbxCamera* Scene::getCurrentCamera(KTime time)
{
KFbxGlobalSettings& lGlobalSettings = fbxScene->GetGlobalSettings();
KFbxGlobalCameraSettings& lGlobalCameraSettings = fbxScene->GlobalCameraSettings();
KString lCurrentCameraName = lGlobalSettings.GetDefaultCamera();
// check if we need to create the Producer cameras!
if (lGlobalCameraSettings.GetCameraProducerPerspective() == NULL &&
lGlobalCameraSettings.GetCameraProducerBottom() == NULL &&
lGlobalCameraSettings.GetCameraProducerTop() == NULL &&
lGlobalCameraSettings.GetCameraProducerFront() == NULL &&
lGlobalCameraSettings.GetCameraProducerBack() == NULL &&
lGlobalCameraSettings.GetCameraProducerRight() == NULL &&
lGlobalCameraSettings.GetCameraProducerLeft() == NULL)
{
lGlobalCameraSettings.CreateProducerCameras();
}
if (lCurrentCameraName.Compare(PRODUCER_PERSPECTIVE) == 0) {
return lGlobalCameraSettings.GetCameraProducerPerspective();
} else if (lCurrentCameraName.Compare(PRODUCER_BOTTOM) == 0) {
return lGlobalCameraSettings.GetCameraProducerBottom();
} else if (lCurrentCameraName.Compare(PRODUCER_TOP) == 0) {
return lGlobalCameraSettings.GetCameraProducerTop();
} else if (lCurrentCameraName.Compare(PRODUCER_FRONT) == 0) {
return lGlobalCameraSettings.GetCameraProducerFront();
} else if (lCurrentCameraName.Compare(PRODUCER_BACK) == 0) {
return lGlobalCameraSettings.GetCameraProducerBack();
} else if (lCurrentCameraName.Compare(PRODUCER_RIGHT) == 0) {
return lGlobalCameraSettings.GetCameraProducerRight();
} else if (lCurrentCameraName.Compare(PRODUCER_LEFT) == 0) {
return lGlobalCameraSettings.GetCameraProducerLeft();
} else if (lCurrentCameraName.Compare(CAMERA_SWITCHER) == 0) {
KFbxCameraSwitcher* lCameraSwitcher = fbxScene->GlobalCameraSettings().GetCameraSwitcher();
KFbxAnimCurve* lCurve = NULL;
if (lCameraSwitcher) {
lCurve = lCameraSwitcher->CameraIndex.GetCurve<KFbxAnimCurve>(currentAnimationLayer);
KFCurve* lFCurve = (lCurve)?lCurve->GetKFCurve():NULL;
int lCameraIndex = 0;
if (lFCurve)
// Get the index of the camera in the camera array.
lCameraIndex = (int) lFCurve->Evaluate(time) - 1;
if (lCameraIndex >= 0 && lCameraIndex < cameras.GetCount()) {
KFbxNode* lNode = cameras[lCameraIndex];
// Get the animated parameters of the camera.
getCameraAnimatedParameters(lNode, time);
return (KFbxCamera*) lNode->GetNodeAttribute();
}
}
} else {
int i;
KFbxNode* lNode = NULL;
// Find the camera in the camera array.
for (i = 0; i < cameras.GetCount(); i++) {
if (lCurrentCameraName.Compare(cameras[i]->GetName()) == 0) {
lNode = cameras[i];
break;
}
}
if (lNode) {
// Get the animated parameters of the camera.
getCameraAnimatedParameters(lNode, time);
return (KFbxCamera*) lNode->GetNodeAttribute();
}
}
return lGlobalCameraSettings.GetCameraProducerPerspective();
}
KFbxCamera* GetCurrentCamera(KFbxScene* pScene,
KTime& pTime,
KArrayTemplate<KFbxNode*>& pCameraArray)
{
KFbxGlobalSettings& lGlobalSettings = pScene->GetGlobalSettings();
KFbxGlobalCameraSettings& lGlobalCameraSettings = pScene->GlobalCameraSettings();
KString lCurrentCameraName = lGlobalSettings.GetDefaultCamera();
if (lGlobalCameraSettings.GetCameraProducerPerspective() == NULL &&
lGlobalCameraSettings.GetCameraProducerBottom() == NULL &&
lGlobalCameraSettings.GetCameraProducerTop() == NULL &&
lGlobalCameraSettings.GetCameraProducerFront() == NULL &&
lGlobalCameraSettings.GetCameraProducerBack() == NULL &&
lGlobalCameraSettings.GetCameraProducerRight() == NULL &&
lGlobalCameraSettings.GetCameraProducerLeft() == NULL)
{
lGlobalCameraSettings.CreateProducerCameras();
}
if (lCurrentCameraName.Compare(PRODUCER_PERSPECTIVE) == 0)
{
return lGlobalCameraSettings.GetCameraProducerPerspective();
}
else if (lCurrentCameraName.Compare(PRODUCER_BOTTOM) == 0)
{
return lGlobalCameraSettings.GetCameraProducerBottom();
}
else if (lCurrentCameraName.Compare(PRODUCER_TOP) == 0)
{
return lGlobalCameraSettings.GetCameraProducerTop();
}
else if (lCurrentCameraName.Compare(PRODUCER_FRONT) == 0)
{
return lGlobalCameraSettings.GetCameraProducerFront();
}
else if (lCurrentCameraName.Compare(PRODUCER_BACK) == 0)
{
return lGlobalCameraSettings.GetCameraProducerBack();
}
else if (lCurrentCameraName.Compare(PRODUCER_RIGHT) == 0)
{
return lGlobalCameraSettings.GetCameraProducerRight();
}
else if (lCurrentCameraName.Compare(PRODUCER_LEFT) == 0)
{
return lGlobalCameraSettings.GetCameraProducerLeft();
}
else if (lCurrentCameraName.Compare(CAMERA_SWITCHER) == 0)
{
KFbxCameraSwitcher* lCameraSwitcher = pScene->GlobalCameraSettings().GetCameraSwitcher();
KFbxAnimCurve* lCurve = NULL;
if (lCameraSwitcher)
{
lCurve = lCameraSwitcher->CameraIndex.GetCurve<KFbxAnimCurve>(gCurrentAnimationLayer);
KFCurve* lFCurve = (lCurve)?lCurve->GetKFCurve():NULL;
int lCameraIndex = 0;
if (lFCurve)
lCameraIndex = (int) lFCurve->Evaluate(pTime) - 1;
if (lCameraIndex >= 0 && lCameraIndex < pCameraArray.GetCount())
{
KFbxNode* lNode = pCameraArray[lCameraIndex];
GetCameraAnimatedParameters(lNode, pTime);
return (KFbxCamera*) lNode->GetNodeAttribute();
}
}
}
else
{
int i;
KFbxNode* lNode = NULL;
for (i = 0; i < pCameraArray.GetCount(); i++)
{
if (lCurrentCameraName.Compare(pCameraArray[i]->GetName()) == 0)
{
lNode = pCameraArray[i];
break;
}
}
if (lNode)
{
GetCameraAnimatedParameters(lNode, pTime);
return (KFbxCamera*) lNode->GetNodeAttribute();
}
}
return lGlobalCameraSettings.GetCameraProducerPerspective();
}
