void GLTFAnimation::writeAnimationForTargetID(const std::string &targetID, GLTFAsset* asset) {
shared_ptr <JSONObject> target = this->targets()->getObject(targetID);
shared_ptr<GLTFAnimationFlattener> animationFlattener = this->animationFlattenerForTargetUID(targetID);
size_t count = 0;
float* rotations = 0;
float* positions = 0;
float* scales = 0;
animationFlattener->allocAndFillAffineTransformsBuffers(&positions, &rotations, &scales, count);
if (animationFlattener->hasAnimatedScale()) {
//Scale
setupAndWriteAnimationParameter(this,
"scale",
"FLOAT_VEC3",
(unsigned char*)scales,
count * sizeof(float) * 3, false,
asset);
__AddChannel(this, targetID, "scale");
free(scales);
}
if (animationFlattener->hasAnimatedTranslation()) {
//Translation
setupAndWriteAnimationParameter(this,
"translation",
"FLOAT_VEC3",
(unsigned char*)positions,
count * sizeof(float) * 3, false,
asset);
__AddChannel(this, targetID, "translation");
free(positions);
}
if (animationFlattener->hasAnimatedRotation()) {
//Rotation
setupAndWriteAnimationParameter(this,
"rotation",
"FLOAT_VEC4",
(unsigned char*)rotations,
count * sizeof(float) * 4, false,
asset);
__AddChannel(this, targetID, "rotation");
free(rotations);
}
}
bool writeAnimation(shared_ptr <GLTFAnimation> cvtAnimation,
const COLLADAFW::AnimationList::AnimationClass animationClass,
AnimatedTargetsSharedPtr animatedTargets,
std::ofstream &animationsOutputStream,
GLTF::GLTFConverterContext &converterContext) {
std::string samplerID;
std::string name;
shared_ptr<JSONObject> samplers = cvtAnimation->samplers();
shared_ptr<JSONArray> channels = cvtAnimation->channels();
size_t keyCount = cvtAnimation->getCount();
GLTFAnimation::Parameter *timeParameter = cvtAnimation->getParameterNamed("TIME");
if (timeParameter) {
shared_ptr<GLTFBufferView> timeBufferView = timeParameter->getBufferView();
std::string name = "TIME";
std::string samplerID = cvtAnimation->getSamplerIDForName(name);
timeParameter->setByteOffset(static_cast<size_t>(animationsOutputStream.tellp()));
animationsOutputStream.write((const char*)( timeBufferView->getBufferDataByApplyingOffset()),
timeBufferView->getByteLength());
//printf("time bufferLength: %d\n",(int)timeBufferView->getByteLength());
}
switch (animationClass) {
case COLLADAFW::AnimationList::TIME:
{
//In Currrent COLLADA Implementation, this is never called, only cases mapping to OUTPUT are, so we handle INPUT when we enter this function.
}
break;
case COLLADAFW::AnimationList::AXISANGLE:
break;
case COLLADAFW::AnimationList::MATRIX4X4: {
GLTFAnimation::Parameter *parameter = cvtAnimation->getParameterNamed("OUTPUT");
if (parameter) {
std::vector< shared_ptr <GLTFBufferView> > TRSBufferViews;
//FIXME: we assume float here, might be double
shared_ptr<GLTFBufferView> bufferView = parameter->getBufferView();
float* matrices = (float*)bufferView->getBufferDataByApplyingOffset();
__DecomposeMatrices(matrices, cvtAnimation->getCount(), TRSBufferViews);
cvtAnimation->removeParameterNamed("OUTPUT");
//Translation
__SetupAndWriteAnimationParameter(cvtAnimation,
"translation",
"FLOAT_VEC3",
TRSBufferViews[0],
animationsOutputStream);
//Rotation
__SetupAndWriteAnimationParameter(cvtAnimation,
"rotation",
"FLOAT_VEC4",
TRSBufferViews[1],
animationsOutputStream);
//Scale
__SetupAndWriteAnimationParameter(cvtAnimation,
"scale",
"FLOAT_VEC3",
TRSBufferViews[2],
animationsOutputStream);
for (size_t animatedTargetIndex = 0 ; animatedTargetIndex < animatedTargets->size() ; animatedTargetIndex++) {
shared_ptr<JSONObject> animatedTarget = (*animatedTargets)[animatedTargetIndex];
if (animatedTarget->getString("path") == "MATRIX") {
std::string targetID = animatedTarget->getString("target");
__AddChannel(cvtAnimation, targetID, "translation");
__AddChannel(cvtAnimation, targetID, "rotation");
__AddChannel(cvtAnimation, targetID, "scale");
}
}
} else {
//FIXME: report error
printf("WARNING: cannot find intermediate parameter named OUTPUT\n");
}
}
return true;
break;
case COLLADAFW::AnimationList::POSITION_XYZ: {
GLTFAnimation::Parameter *parameter = cvtAnimation->getParameterNamed("OUTPUT");
if (parameter) {
shared_ptr<GLTFBufferView> bufferView = parameter->getBufferView();
__SetupAndWriteAnimationParameter(cvtAnimation,
"translation",
"FLOAT_VEC3",
bufferView,
animationsOutputStream);
for (size_t animatedTargetIndex = 0 ; animatedTargetIndex < animatedTargets->size() ; animatedTargetIndex++) {
shared_ptr<JSONObject> animatedTarget = (*animatedTargets)[animatedTargetIndex];
if (animatedTarget->getString("path") == "translation") {
std::string targetID = animatedTarget->getString("target");
__AddChannel(cvtAnimation, targetID, "translation");
}
}
cvtAnimation->removeParameterNamed("OUTPUT");
}
}
return true;
break;
case COLLADAFW::AnimationList::ANGLE: {
GLTFAnimation::Parameter *parameter = cvtAnimation->getParameterNamed("OUTPUT");
if (parameter) {
shared_ptr<GLTFBufferView> bufferView = parameter->getBufferView();
//Convert angles to radians
float *angles = (float*)bufferView->getBufferDataByApplyingOffset();
for (size_t i = 0 ; i < keyCount ; i++) {
angles[i] = angles[i] * 0.0174532925; //to radians.
}
for (size_t animatedTargetIndex = 0 ; animatedTargetIndex < animatedTargets->size() ; animatedTargetIndex++) {
shared_ptr<JSONObject> animatedTarget = (*animatedTargets)[animatedTargetIndex];
std::string targetID = animatedTarget->getString("target");
if (converterContext._uniqueIDToTrackedObject.count(targetID) != 0) {
shared_ptr<JSONObject> targetObject = converterContext._uniqueIDToTrackedObject[targetID];
std::string path = animatedTarget->getString("path");
if (path == "rotation") {
shared_ptr<JSONArray> rotationArray = static_pointer_cast <JSONArray>(targetObject->getValue(path));
shared_ptr<GLTFBufferView> adjustedBuffer = __CreateBufferViewByReplicatingArrayAndReplacingValueAtIndex(bufferView, rotationArray, 3, "FLOAT", cvtAnimation->getCount());
__SetupAndWriteAnimationParameter(cvtAnimation,
"rotation",
"FLOAT_VEC4",
adjustedBuffer,
animationsOutputStream);
__AddChannel(cvtAnimation, targetID, path);
}
}
}
}
cvtAnimation->removeParameterNamed("OUTPUT");
}
return true;
break;
case COLLADAFW::AnimationList::POSITION_X:
case COLLADAFW::AnimationList::POSITION_Y:
case COLLADAFW::AnimationList::POSITION_Z:
case COLLADAFW::AnimationList::COLOR_RGB:
case COLLADAFW::AnimationList::COLOR_RGBA:
case COLLADAFW::AnimationList::COLOR_R:
case COLLADAFW::AnimationList::COLOR_G:
case COLLADAFW::AnimationList::COLOR_B:
case COLLADAFW::AnimationList::COLOR_A:
case COLLADAFW::AnimationList::ARRAY_ELEMENT_1D:
case COLLADAFW::AnimationList::ARRAY_ELEMENT_2D:
case COLLADAFW::AnimationList::FLOAT:
default:
break;
}
return false;
}