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#include "GLTF.h"
#include "../GLTFOpenCOLLADA.h"
#include "GLTFAsset.h"
#include "animationConverter.h"
#include "meshConverter.h"
#include "../helpers/mathHelpers.h"
#include "GLTF-Open3DGC.h"
using namespace rapidjson;
#if __cplusplus <= 199711L
using namespace std::tr1;
#endif
using namespace std;
namespace GLTF
{
#define ANIMATIONFLATTENER_FOR_PATH_AND_TARGETID(path, targetID) std::string targetUIDWithPath = path+targetID;\
if (asset->_targetUIDWithPathToAnimationFlattener.count(targetUIDWithPath) > 0) {\
animationFlattener = asset->_targetUIDWithPathToAnimationFlattener[targetUIDWithPath];\
} else {\
animationFlattener = cvtAnimation->animationFlattenerForTargetUID(targetID);\
asset->_targetUIDWithPathToAnimationFlattener[targetUIDWithPath] = animationFlattener;\
}
/*
The animation creation/write is in 2 steps.
We first create the animation, but then, we need to set the channels for every targets, and targets ids are not available when animations are created
*/
bool writeAnimation(shared_ptr <GLTFAnimation> cvtAnimation,
const COLLADAFW::AnimationList::AnimationClass animationClass,
AnimatedTargetsSharedPtr animatedTargets,
GLTF::GLTFAsset *asset) {
std::string inputParameterName = "TIME";
shared_ptr<JSONObject> samplers = cvtAnimation->samplers();
shared_ptr<JSONArray> channels = cvtAnimation->channels();
shared_ptr<GLTFBufferView> timeBufferView = cvtAnimation->getBufferViewForParameter(inputParameterName);
shared_ptr<GLTFAnimationFlattener> animationFlattener;
shared_ptr<GLTFBufferView> bufferView = cvtAnimation->getBufferViewForParameter("OUTPUT");
cvtAnimation->unregisterBufferView("OUTPUT");
switch (animationClass) {
case COLLADAFW::AnimationList::TIME:
{
//In Currrent OpenCOLLADA Implementation, this is never called, only cases mapping to OUTPUT are, so we handle INPUT (i.e time) when we enter this function.
}
break;
case COLLADAFW::AnimationList::AXISANGLE: {
//the angles to radians necessary convertion is done within the animationFlattener
//but it might be better to make it before...
for (size_t animatedTargetIndex = 0 ; animatedTargetIndex < animatedTargets->size() ; animatedTargetIndex++) {
shared_ptr<JSONObject> animatedTarget = (*animatedTargets)[animatedTargetIndex];
std::string targetID = animatedTarget->getString(kTarget);
if (asset->_uniqueIDToOpenCOLLADAObject.count(targetID) != 0) {
cvtAnimation->targets()->setValue(targetID, animatedTarget);
std::string path = animatedTarget->getString("path");
if (path == "rotation") {
std::string transformID = animatedTarget->getString("transformId");
animationFlattener = cvtAnimation->animationFlattenerForTargetUID(targetID);
float* timeValues = (float*)timeBufferView->getBufferDataByApplyingOffset();
float* rotations = (float*)bufferView->getBufferDataByApplyingOffset();
for (size_t k = 0 ; k < cvtAnimation->getCount() ; k++) {
size_t offset = k * 4;
shared_ptr <COLLADAFW::Rotate> rotate(new COLLADAFW::Rotate(rotations[offset + 0],
rotations[offset + 1],
rotations[offset + 2],
rotations[offset + 3]));
animationFlattener->insertTransformAtTime(transformID, rotate, timeValues[k]);
}
}
}
}
}
return true;
case COLLADAFW::AnimationList::MATRIX4X4: {
std::vector< shared_ptr <GLTFBufferView> > TRSBufferViews;
//FIXME: we assume float here, might be double
float* matrices = (float*)bufferView->getBufferDataByApplyingOffset();
float* timeValues = (float*)timeBufferView->getBufferDataByApplyingOffset();
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(kTarget);
if (asset->_uniqueIDToOpenCOLLADAObject.count(targetID) != 0) {
cvtAnimation->targets()->setValue(targetID, animatedTarget);
std::string transformID = animatedTarget->getString("transformId");
animationFlattener = cvtAnimation->animationFlattenerForTargetUID(targetID);
for (size_t k = 0 ; k < cvtAnimation->getCount() ; k++) {
size_t offset = k * 16;
float *m = matrices + offset;
COLLADABU::Math::Matrix4 mat;
mat.setAllElements(m[0], m[1], m[2], m[3],
m[4], m[5], m[6], m[7],
m[8], m[9], m[10], m[11],
m[12], m[13], m[14], m[15] );
shared_ptr <COLLADAFW::Matrix> matTr(new COLLADAFW::Matrix(mat));
animationFlattener->insertTransformAtTime(transformID, matTr, timeValues[k]);
}
}
}
}
}
return true;
case COLLADAFW::AnimationList::POSITION_XYZ: {
//the angles to radians necessary convertion is done within the animationFlattener
//but it might be better to make it before...
for (size_t animatedTargetIndex = 0 ; animatedTargetIndex < animatedTargets->size() ; animatedTargetIndex++) {
shared_ptr<JSONObject> animatedTarget = (*animatedTargets)[animatedTargetIndex];
std::string targetID = animatedTarget->getString(kTarget);
if (asset->_uniqueIDToOpenCOLLADAObject.count(targetID) != 0) {
cvtAnimation->targets()->setValue(targetID, animatedTarget);
std::string path = animatedTarget->getString("path");
if (path == "translation") {
std::string transformID = animatedTarget->getString("transformId");
animationFlattener = cvtAnimation->animationFlattenerForTargetUID(targetID);
float* timeValues = (float*)timeBufferView->getBufferDataByApplyingOffset();
float* translations = (float*)bufferView->getBufferDataByApplyingOffset();
for (size_t k = 0 ; k < cvtAnimation->getCount() ; k++) {
size_t offset = k * 3;
shared_ptr <COLLADAFW::Translate> translate(new COLLADAFW::Translate(translations[offset + 0],
translations[offset + 1],
translations[offset + 2]));
animationFlattener->insertTransformAtTime(transformID, translate, timeValues[k]);
}
} else if (path == "scale") {
std::string transformID = animatedTarget->getString("transformId");
animationFlattener = cvtAnimation->animationFlattenerForTargetUID(targetID);
float* timeValues = (float*)timeBufferView->getBufferDataByApplyingOffset();
float* scales = (float*)bufferView->getBufferDataByApplyingOffset();
for (size_t k = 0 ; k < cvtAnimation->getCount() ; k++) {
size_t offset = k * 3;
shared_ptr <COLLADAFW::Scale> scale(new COLLADAFW::Scale(scales[offset + 0],
scales[offset + 1],
scales[offset + 2]));
animationFlattener->insertTransformAtTime(transformID, scale, timeValues[k]);
}
}
}
}
}
return true;
case COLLADAFW::AnimationList::ANGLE: {
//the angles to radians necessary convertion is done within the animationFlattener
//but it might be better to make it before...
for (size_t animatedTargetIndex = 0; animatedTargetIndex < animatedTargets->size(); animatedTargetIndex++) {
shared_ptr<JSONObject> animatedTarget = (*animatedTargets)[animatedTargetIndex];
std::string targetID = animatedTarget->getString(kTarget);
if (asset->_uniqueIDToOpenCOLLADAObject.count(targetID) != 0) {
cvtAnimation->targets()->setValue(targetID, animatedTarget);
std::string path = animatedTarget->getString("path");
if (path == "rotation") {
std::string transformID = animatedTarget->getString("transformId");
ANIMATIONFLATTENER_FOR_PATH_AND_TARGETID(path, targetID);
float* timeValues = (float*)timeBufferView->getBufferDataByApplyingOffset();
float* rotations = (float*)bufferView->getBufferDataByApplyingOffset();
for (size_t k = 0; k < cvtAnimation->getCount(); k++) {
animationFlattener->insertValueAtTime(transformID, rotations[k], 3, timeValues[k]);
}
}
}
}
}
return true;
case COLLADAFW::AnimationList::POSITION_X:
case COLLADAFW::AnimationList::POSITION_Y:
case COLLADAFW::AnimationList::POSITION_Z:
{
int index = animationClass - COLLADAFW::AnimationList::POSITION_X;
for (size_t animatedTargetIndex = 0; animatedTargetIndex < animatedTargets->size(); animatedTargetIndex++) {
shared_ptr<JSONObject> animatedTarget = (*animatedTargets)[animatedTargetIndex];
std::string targetID = animatedTarget->getString(kTarget);
if (asset->_uniqueIDToOpenCOLLADAObject.count(targetID) != 0) {
cvtAnimation->targets()->setValue(targetID, animatedTarget);
std::string path = animatedTarget->getString("path");
std::string transformID = animatedTarget->getString("transformId");
ANIMATIONFLATTENER_FOR_PATH_AND_TARGETID(path, targetID);
float* timeValues = (float*)timeBufferView->getBufferDataByApplyingOffset();
float* values = (float*)bufferView->getBufferDataByApplyingOffset();
for (size_t k = 0; k < cvtAnimation->getCount(); k++) {
animationFlattener->insertValueAtTime(transformID, values[k], index, timeValues[k]);
}
}
}
return true;
}
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:
static bool printedOnce = false;
if (!printedOnce) {
printf("WARNING: unhandled transform type\n");
printedOnce = true;
}
break;
}
return false;
}
shared_ptr <GLTFAnimation> convertOpenCOLLADAAnimationToGLTFAnimation(const COLLADAFW::Animation* animation, GLTF::GLTFAsset *asset)
{
shared_ptr <GLTFAnimation> cvtAnimation(new GLTFAnimation());
if (animation->getAnimationType() == COLLADAFW::Animation::ANIMATION_CURVE) {
shared_ptr <JSONObject> animationParameters = cvtAnimation->parameters();
const COLLADAFW::AnimationCurve *animationCurve = (const COLLADAFW::AnimationCurve*)animation;
//This needs to be fixed when re-working: https://github.com/KhronosGroup/glTF/issues/158
//especially, this point: "by default the converter should replicate COLLADA animations layout (not yet done), but an option should allow to have one animation per target. (this is actually the case)."
std::string animationID = uniqueIdWithType(kAnimation, animation->getUniqueId());
cvtAnimation->setID(animationID);
cvtAnimation->setCount(animationCurve->getKeyCount());
/** Returns the input values of the animation. */
const COLLADAFW::FloatOrDoubleArray &inputArray = animationCurve->getInputValues();
const COLLADAFW::FloatOrDoubleArray &outputArray = animationCurve->getOutputValues();
// Scales any distance values if needed
if (asset->getDistanceScale() != 1.0)
{
bool bNeedsScale = false;
const COLLADAFW::PhysicalDimensionArray& dimensions = animationCurve->getOutPhysicalDimensions();
size_t numDimensions = animationCurve->getOutDimension();
for (size_t dimIndex = 0; dimIndex < numDimensions; ++dimIndex)
{
if (dimensions[dimIndex] == COLLADAFW::PHYSICAL_DIMENSION_LENGTH)
{
bNeedsScale = true;
break;
}
}
if (bNeedsScale)
{
switch (outputArray.getType()) {
case COLLADAFW::MeshVertexData::DATA_TYPE_FLOAT: {
COLLADAFW::FloatArray* array = const_cast<COLLADAFW::FloatArray*>(outputArray.getFloatValues());
float* fArray = array->getData();
for (size_t index = 0; index < array->getCount(); ++index)
{
if (dimensions[index % numDimensions] == COLLADAFW::PHYSICAL_DIMENSION_LENGTH)
{
fArray[index] *= (float)asset->getDistanceScale();
}
}
}
break;
case COLLADAFW::MeshVertexData::DATA_TYPE_DOUBLE: {
COLLADAFW::DoubleArray* array = const_cast<COLLADAFW::DoubleArray*>(outputArray.getDoubleValues());
double* dArray = array->getData();
for (size_t index = 0; index < array->getCount(); ++index)
{
if (dimensions[index % numDimensions] == COLLADAFW::PHYSICAL_DIMENSION_LENGTH)
{
dArray[index] *= asset->getDistanceScale();
}
}
}
break;
default:
case COLLADAFW::MeshVertexData::DATA_TYPE_UNKNOWN:
//FIXME report error
break;
};
}
}
const std::string originalID = animationCurve->getOriginalId();
//shared_ptr <JSONObject> inputParameter(new JSONObject());
shared_ptr <GLTFBufferView> inputBufferView = convertFloatOrDoubleArrayToGLTFBufferView(inputArray);
shared_ptr <GLTFBufferView> outputBufferView = convertFloatOrDoubleArrayToGLTFBufferView(outputArray);
cvtAnimation->registerBufferView("TIME", inputBufferView);
cvtAnimation->registerBufferView("OUTPUT", outputBufferView);
}
return cvtAnimation;
}
}
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