// Populate the AnimationChannel vector with various ops based on the Maya
// transformation logic If scale and/or rotate pivot are declared, create
// inverse ops in the appropriate order
void MayaTransformWriter::pushTransformStack(
const MFnTransform& iTrans,
const UsdGeomXformable& usdXformable,
bool writeAnim)
{
// NOTE: I think this logic and the logic in MayaTransformReader
// should be merged so the concept of "CommonAPI" stays centralized.
//
// By default we assume that the xform conforms to the common API
// (xlate,pivot,rotate,scale,pivotINVERTED) As soon as we encounter any
// additional xform (compensation translates for pivots, rotateAxis or
// shear) we are not conforming anymore
bool conformsToCommonAPI = true;
// Keep track of where we have rotate and scale Pivots and their inverse so
// that we can combine them later if possible
unsigned int rotPivotIdx = -1, rotPivotINVIdx = -1, scalePivotIdx = -1, scalePivotINVIdx = -1;
// Check if the Maya prim inheritTransform
MPlug inheritPlug = iTrans.findPlug("inheritsTransform");
if (!inheritPlug.isNull()) {
if(!inheritPlug.asBool()) {
usdXformable.SetResetXformStack(true);
}
}
// inspect the translate, no suffix to be closer compatibility with common API
_GatherAnimChannel(TRANSLATE, iTrans, "translate", "X", "Y", "Z", &mAnimChanList, writeAnim, false);
// inspect the rotate pivot translate
if (_GatherAnimChannel(TRANSLATE, iTrans, "rotatePivotTranslate", "X", "Y", "Z", &mAnimChanList, writeAnim, true)) {
conformsToCommonAPI = false;
}
// inspect the rotate pivot
bool hasRotatePivot = _GatherAnimChannel(TRANSLATE, iTrans, "rotatePivot", "X", "Y", "Z", &mAnimChanList, writeAnim, true);
if (hasRotatePivot) {
rotPivotIdx = mAnimChanList.size()-1;
}
// inspect the rotate, no suffix to be closer compatibility with common API
_GatherAnimChannel(ROTATE, iTrans, "rotate", "X", "Y", "Z", &mAnimChanList, writeAnim, false);
// inspect the rotateAxis/orientation
if (_GatherAnimChannel(ROTATE, iTrans, "rotateAxis", "X", "Y", "Z", &mAnimChanList, writeAnim, true)) {
conformsToCommonAPI = false;
}
// invert the rotate pivot
if (hasRotatePivot) {
AnimChannel chan;
chan.usdOpType = UsdGeomXformOp::TypeTranslate;
chan.precision = UsdGeomXformOp::PrecisionFloat;
chan.opName = "rotatePivot";
chan.isInverse = true;
mAnimChanList.push_back(chan);
rotPivotINVIdx = mAnimChanList.size()-1;
}
// inspect the scale pivot translation
if (_GatherAnimChannel(TRANSLATE, iTrans, "scalePivotTranslate", "X", "Y", "Z", &mAnimChanList, writeAnim, true)) {
conformsToCommonAPI = false;
}
// inspect the scale pivot point
bool hasScalePivot = _GatherAnimChannel(TRANSLATE, iTrans, "scalePivot", "X", "Y", "Z", &mAnimChanList, writeAnim, true);
if (hasScalePivot) {
scalePivotIdx = mAnimChanList.size()-1;
}
// inspect the shear. Even if we have one xform on the xform list, it represents a share so we should name it
if (_GatherAnimChannel(SHEAR, iTrans, "shear", "XY", "XZ", "YZ", &mAnimChanList, writeAnim, true)) {
conformsToCommonAPI = false;
}
// add the scale. no suffix to be closer compatibility with common API
_GatherAnimChannel(SCALE, iTrans, "scale", "X", "Y", "Z", &mAnimChanList, writeAnim, false);
// inverse the scale pivot point
if (hasScalePivot) {
AnimChannel chan;
chan.usdOpType = UsdGeomXformOp::TypeTranslate;
chan.precision = UsdGeomXformOp::PrecisionFloat;
chan.opName = "scalePivot";
chan.isInverse = true;
mAnimChanList.push_back(chan);
scalePivotINVIdx = mAnimChanList.size()-1;
}
// If still potential common API, check if the pivots are the same and NOT animated/connected
if (hasRotatePivot != hasScalePivot) {
conformsToCommonAPI = false;
}
if (conformsToCommonAPI && hasRotatePivot && hasScalePivot) {
AnimChannel rotPivChan, scalePivChan;
rotPivChan = mAnimChanList[rotPivotIdx];
scalePivChan = mAnimChanList[scalePivotIdx];
// If they have different sampleType or are ANIMATED, does not conformsToCommonAPI anymore
for (unsigned int i = 0;i<3;i++) {
if (rotPivChan.sampleType[i] != scalePivChan.sampleType[i] ||
rotPivChan.sampleType[i] == ANIMATED) {
conformsToCommonAPI = false;
}
}
// If The defaultValue is not the same, does not conformsToCommonAPI anymore
if (!GfIsClose(rotPivChan.defValue, scalePivChan.defValue, 1e-9)) {
conformsToCommonAPI = false;
}
// If opType, usdType or precision are not the same, does not conformsToCommonAPI anymore
if (rotPivChan.opType != scalePivChan.opType ||
rotPivChan.usdOpType != scalePivChan.usdOpType ||
rotPivChan.precision != scalePivChan.precision) {
conformsToCommonAPI = false;
}
if (conformsToCommonAPI) {
// To Merge, we first rename rotatePivot and the scalePivot inverse
// to pivot. Then we remove the scalePivot and the inverse of the
// rotatePivot.
//
// This means that pivot and its inverse will wrap rotate and scale
// since no other ops have been found
//
// NOTE: scalePivotIdx > rotPivotINVIdx
mAnimChanList[rotPivotIdx].opName = "pivot";
mAnimChanList[scalePivotINVIdx].opName = "pivot";
mAnimChanList.erase(mAnimChanList.begin()+scalePivotIdx);
mAnimChanList.erase(mAnimChanList.begin()+rotPivotINVIdx);
}
}
// Loop over anim channel vector and create corresponding XFormOps
// including the inverse ones if needed
TF_FOR_ALL(iter, mAnimChanList) {
AnimChannel& animChan = *iter;
animChan.op = usdXformable.AddXformOp(
animChan.usdOpType, animChan.precision,
TfToken(animChan.opName),
animChan.isInverse);
}
MStatus simulateBoids::doIt( const MArgList& args )
{
// Description: implements the MEL boids command
// Arguments: args - the argument list that was passes to the command from MEL
MStatus status = MS::kSuccess;
/****************************************
* building thread/dll data structure *
****************************************/
InfoCache infoCache;
SimulationParameters simParams;
RulesParameters *applyingRules;
double progressBar=0;
double aov=pi/3;
int i,numberOfDesires=0;
// params retrievement
MSelectionList sel;
MObject node;
MFnDependencyNode nodeFn;
MFnTransform locatorFn;
MPlug plug;
// simulation params
int simulationLengthValue; // [int] in seconds
int framesPerSecondValue; // [int]
int startFrameValue; // [int]
int boidsNumberValue; // [int]
// export params
MString logFilePathValue; // [char *]
MString logFileNameValue; // [char *]
int logFileTypeValue; // 0 = nCache; 1 = log file; 2 = XML;
// locomotion params
int locomotionModeValue; // [int]
double maxSpeedValue; // [double]
double maxForceValue; // [double]
// double mass=1; // [double]
MTime currentTime, maxTime;
MPlug plugX, plugY, plugZ;
double tx, ty, tz;
int frameLength ;
Vector * leader = NULL;
MStatus leaderFound=MStatus::kFailure;
MGlobal::getActiveSelectionList(sel);
for ( MItSelectionList listIter(sel); !listIter.isDone(); listIter.next() )
{
listIter.getDependNode(node);
switch(node.apiType())
{
case MFn::kTransform:
// get locator transform to follow
leaderFound=locatorFn.setObject(node);
cout << locatorFn.name().asChar() << " is selected as locator" << endl;
break;
case MFn::kPluginDependNode:
nodeFn.setObject(node);
cout << nodeFn.name().asChar() << " is selected as brain" << endl;
break;
default:
break;
}
cout<< node.apiTypeStr()<<endl;
}
// rules params
setRuleVariables(alignment);
setRuleVariables(cohesion);
setRuleVariables(separation);
setRuleVariables(follow);
getPlugValue(simulationLength);
getPlugValue(framesPerSecond);
getPlugValue(startFrame);
getPlugValue(boidsNumber);
getPlugValue(logFileType);
getRulePlugValue(alignment);
getRulePlugValue(cohesion);
getRulePlugValue(separation);
getRulePlugValue(follow);
getPlugValue(locomotionMode);
getPlugValue(maxSpeed);
getPlugValue(maxForce);
getTypePlugValue(logFilePath);
getTypePlugValue(logFileName);
// counting active rules number
if(alignmentActiveValue)
numberOfDesires++;
if(cohesionActiveValue)
numberOfDesires++;
if(separationActiveValue)
numberOfDesires++;
if(followActiveValue)
numberOfDesires++;
currentTime = MTime((double)startFrameValue); // MAnimControl::minTime();
maxTime = MTime((double)(startFrameValue + (simulationLengthValue * framesPerSecondValue))); // MAnimControl::maxTime();
cout << "time unit enum (6 is 24 fps): " << currentTime.unit() << endl;
plugX = locatorFn.findPlug( MString( "translateX" ), &status );
plugY = locatorFn.findPlug( MString( "translateY" ), &status );
plugZ = locatorFn.findPlug( MString( "translateZ" ), &status );
frameLength = simulationLengthValue * framesPerSecondValue;
if(leaderFound==MS::kSuccess)
{
leader = new Vector[frameLength];
while ( currentTime < maxTime )
{
{
int index = (int)currentTime.value() - startFrameValue;
/*
MGlobal::viewFrame(currentTime);
pos = locatorFn.getTranslation(MSpace::kWorld);
cout << "pos: " << pos.x << " " << pos.y << " " << pos.z << endl;
*/
status = plugX.getValue( tx, MDGContext(currentTime) );
status = plugY.getValue( ty, MDGContext(currentTime) );
status = plugZ.getValue( tz, MDGContext(currentTime) );
leader[index].x = tx;
leader[index].y = ty;
leader[index].z = tz;
//cout << "pos at time " << currentTime.value() << " has x: " << tx << " y: " << ty << " z: " << tz << endl;
currentTime++;
}
}
}
simParams.fps=framesPerSecondValue;
simParams.lenght=simulationLengthValue;
simParams.numberOfBoids=boidsNumberValue;
simParams.maxAcceleration=maxForceValue;
simParams.maxVelocity=maxSpeedValue;
simParams.simplifiedLocomotion=TRUE;
applyingRules=new RulesParameters[numberOfDesires];
// cache settings
MString saveString;
saveString = logFilePathValue+"/"+logFileNameValue;
infoCache.fileName=new char[saveString.length()+1];
memcpy(infoCache.fileName,saveString.asChar(),sizeof(char)*(saveString.length()+1));
infoCache.cacheFormat=ONEFILE;
infoCache.fps=framesPerSecondValue;
infoCache.start=startFrameValue/framesPerSecondValue;
infoCache.end=simulationLengthValue+infoCache.start;
infoCache.loging=FALSE;
infoCache.option=POSITIONVELOCITY;
infoCache.particleSysName="BoidsNParticles";
infoCache.saveMethod=MAYANCACHE;
for(i=0;i<numberOfDesires;i++)
{
applyingRules[i].enabled=TRUE;
applyingRules[i].precedence=1;
applyingRules[i].aov=aov;
applyingRules[i].visibilityOption=FALSE;
}
if(cohesionActiveValue==0)
applyingRules[COHESIONRULE].enabled=FALSE;
else
{
applyingRules[COHESIONRULE].ruleName=COHESIONRULE;
applyingRules[COHESIONRULE].ruleFactor=cohesionFactorValue;
applyingRules[COHESIONRULE].ruleRadius=cohesionRadiusValue;
applyingRules[COHESIONRULE].ruleWeight=cohesionWeightValue;
}
if(separationActiveValue==0)
applyingRules[SEPARATIONRULE].enabled=FALSE;
else
{
applyingRules[SEPARATIONRULE].ruleName=SEPARATIONRULE;
applyingRules[SEPARATIONRULE].ruleFactor=separationFactorValue;
applyingRules[SEPARATIONRULE].ruleRadius=separationRadiusValue;
applyingRules[SEPARATIONRULE].ruleWeight=separationWeightValue;
}
if(alignmentActiveValue==0)
applyingRules[ALIGNMENTRULE].enabled=FALSE;
else
{
applyingRules[ALIGNMENTRULE].ruleName=ALIGNMENTRULE;
applyingRules[ALIGNMENTRULE].ruleFactor=alignmentFactorValue;
applyingRules[ALIGNMENTRULE].ruleRadius=alignmentRadiusValue;
applyingRules[ALIGNMENTRULE].ruleWeight=alignmentWeightValue;
}
if(followActiveValue==0)
applyingRules[FOLLOWRULE].enabled=FALSE;
else
{
applyingRules[FOLLOWRULE].ruleName=FOLLOWRULE;
applyingRules[FOLLOWRULE].ruleRadius=followRadiusValue;
applyingRules[FOLLOWRULE].ruleFactor=followFactorValue;
applyingRules[FOLLOWRULE].ruleWeight=followWeightValue;
}
// initializing simulation parameters
boidInit(numberOfDesires, applyingRules, simParams , infoCache, leader);
DLLData datadll;
// preparing threads pool
status = MThreadPool::init();
if (status==MStatus::kSuccess)
{
MThreadPool::newParallelRegion(ThreadsCreator, &datadll);
setResult( "Command executed!\n" );
CHECK_MSTATUS(MProgressWindow::endProgress());
MThreadPool::release();
}
switch(datadll.result)
{
case 0:
status=MS::kSuccess;
break;
default:
status=MS::kFailure;
}
MThreadPool::release();
return status;
}
// Creates an AnimChannel from a Maya compound attribute if there is meaningful
// data. This means we found data that is non-identity.
//
// returns true if we extracted an AnimChannel and false otherwise (e.g., the
// data was identity).
static bool
_GatherAnimChannel(
XFormOpType opType,
const MFnTransform& iTrans,
MString parentName,
MString xName, MString yName, MString zName,
std::vector<AnimChannel>* oAnimChanList,
bool isWritingAnimation,
bool setOpName)
{
AnimChannel chan;
chan.opType = opType;
chan.isInverse = false;
if (setOpName) {
chan.opName = parentName.asChar();
}
// We default to single precision (later we set the main translate op and
// shear to double)
chan.precision = UsdGeomXformOp::PrecisionFloat;
unsigned int validComponents = 0;
// this is to handle the case where there is a connection to the parent
// plug but not to the child plugs, if the connection is there and you are
// not forcing static, then all of the children are considered animated
int parentSample = PxrUsdMayaUtil::getSampledType(iTrans.findPlug(parentName),false);
// Determine what plug are needed based on default value & being
// connected/animated
MStringArray channels;
channels.append(parentName+xName);
channels.append(parentName+yName);
channels.append(parentName+zName);
GfVec3d nullValue(opType == SCALE ? 1.0 : 0.0);
for (unsigned int i = 0; i<3; i++) {
// Find the plug and retrieve the data as the channel default value. It
// won't be updated if the channel is NOT ANIMATED
chan.plug[i] = iTrans.findPlug(channels[i]);
double plugValue = chan.plug[i].asDouble();
chan.defValue[i] = opType == ROTATE ? GfRadiansToDegrees(plugValue) : plugValue;
chan.sampleType[i] = NO_XFORM;
// If we allow animation and either the parentsample or local sample is
// not 0 then we havea ANIMATED sample else we have a scale and the
// value is NOT 1 or if the value is NOT 0 then we have a static xform
if ((parentSample != 0 || PxrUsdMayaUtil::getSampledType(chan.plug[i], true) != 0) &&
isWritingAnimation) {
chan.sampleType[i] = ANIMATED;
validComponents++;
}
else if (!GfIsClose(chan.defValue[i], nullValue[i], 1e-7)) {
chan.sampleType[i] = STATIC;
validComponents++;
}
}
// If there are valid component, then we will add the animation channel.
// Rotates with 1 component will be optimized to single axis rotation
if (validComponents>0) {
if (opType == SCALE) {
chan.usdOpType = UsdGeomXformOp::TypeScale;
} else if (opType == TRANSLATE) {
chan.usdOpType = UsdGeomXformOp::TypeTranslate;
// The main translate is set to double precision
if (parentName == "translate") {
chan.precision = UsdGeomXformOp::PrecisionDouble;
}
} else if (opType == ROTATE) {
chan.usdOpType = UsdGeomXformOp::TypeRotateXYZ;
if (validComponents == 1) {
if (chan.sampleType[0] != NO_XFORM) chan.usdOpType = UsdGeomXformOp::TypeRotateX;
if (chan.sampleType[1] != NO_XFORM) chan.usdOpType = UsdGeomXformOp::TypeRotateY;
if (chan.sampleType[2] != NO_XFORM) chan.usdOpType = UsdGeomXformOp::TypeRotateZ;
}
else {
// Rotation Order ONLY applies to the "rotate" attribute
if (parentName == "rotate") {
switch (iTrans.rotationOrder()) {
case MTransformationMatrix::kYZX:
chan.usdOpType = UsdGeomXformOp::TypeRotateYZX;
break;
case MTransformationMatrix::kZXY:
chan.usdOpType = UsdGeomXformOp::TypeRotateZXY;
break;
case MTransformationMatrix::kXZY:
chan.usdOpType = UsdGeomXformOp::TypeRotateXZY;
break;
case MTransformationMatrix::kYXZ:
chan.usdOpType = UsdGeomXformOp::TypeRotateYXZ;
break;
case MTransformationMatrix::kZYX:
chan.usdOpType = UsdGeomXformOp::TypeRotateZYX;
break;
default: break;
}
}
}
}
else if (opType == SHEAR) {
chan.usdOpType = UsdGeomXformOp::TypeTransform;
chan.precision = UsdGeomXformOp::PrecisionDouble;
}
else {
return false;
}
oAnimChanList->push_back(chan);
return true;
}
return false;
}
/********************************************************************************************************
* Method to translate a single camera *
********************************************************************************************************/
MStatus OgreExporter::writeCamera(MFnCamera& camera)
{
MPlug plug;
MPlugArray srcplugarray;
double dist;
MAngle angle;
MFnTransform* cameraTransform = NULL;
MFnAnimCurve* animCurve = NULL;
// get camera transform
for (int i=0; i<camera.parentCount(); i++)
{
if (camera.parent(i).hasFn(MFn::kTransform))
{
cameraTransform = new MFnTransform(camera.parent(i));
continue;
}
}
// start camera description
m_params.outCameras << "camera " << cameraTransform->partialPathName().asChar() << "\n";
m_params.outCameras << "{\n";
//write camera type
m_params.outCameras << "\ttype ";
if (camera.isOrtho())
m_params.outCameras << "ortho\n";
else
m_params.outCameras << "persp\n";
// write translation data
m_params.outCameras << "\ttranslation\n";
m_params.outCameras << "\t{\n";
//translateX
m_params.outCameras << "\t\tx ";
plug = cameraTransform->findPlug("translateX");
if (plug.isConnected() && m_params.exportCamerasAnim)
{
plug.connectedTo(srcplugarray,true,false,&stat);
for (int i=0; i < srcplugarray.length(); i++)
{
if (srcplugarray[i].node().hasFn(MFn::kAnimCurve))
{
if (animCurve)
delete animCurve;
animCurve = new MFnAnimCurve(srcplugarray[i].node());
continue;
}
else if (i == srcplugarray.length()-1)
{
std::cout << "Invalid link to translateX attribute\n";
return MS::kFailure;
}
}
m_params.outCameras << "anim " << animCurve->name().asChar() << "\n";
}
else
{
plug.getValue(dist);
m_params.outCameras << "= " << dist << "\n";
}
//translateY
m_params.outCameras << "\t\ty ";
plug = cameraTransform->findPlug("translateY");
if (plug.isConnected() && m_params.exportCamerasAnim)
{
plug.connectedTo(srcplugarray,true,false,&stat);
for (int i=0; i< srcplugarray.length(); i++)
{
if (srcplugarray[i].node().hasFn(MFn::kAnimCurve))
{
if (animCurve)
delete animCurve;
animCurve = new MFnAnimCurve(srcplugarray[i].node());
continue;
}
else if (i == srcplugarray.length()-1)
{
std::cout << "Invalid link to translateY attribute\n";
return MS::kFailure;
}
}
m_params.outCameras << "anim " << animCurve->name().asChar() << "\n";
}
else
{
plug.getValue(dist);
m_params.outCameras << "= " << dist << "\n";
}
//translateZ
m_params.outCameras << "\t\tz ";
plug = cameraTransform->findPlug("translateZ");
if (plug.isConnected() && m_params.exportCamerasAnim)
{
plug.connectedTo(srcplugarray,true,false,&stat);
for (int i=0; i< srcplugarray.length(); i++)
{
if (srcplugarray[i].node().hasFn(MFn::kAnimCurve))
{
if (animCurve)
delete animCurve;
animCurve = new MFnAnimCurve(srcplugarray[i].node());
continue;
}
else if (i == srcplugarray.length()-1)
{
std::cout << "Invalid link to translateZ attribute\n";
return MS::kFailure;
}
}
m_params.outCameras << "anim " << animCurve->name().asChar() << "\n";
}
else
{
plug.getValue(dist);
m_params.outCameras << "= " << dist << "\n";
}
m_params.outCameras << "\t}\n";
// write rotation data
m_params.outCameras << "\trotation\n";
m_params.outCameras << "\t{\n";
m_params.outCameras << "\t\tx ";
//rotateX
plug = cameraTransform->findPlug("rotateX");
if (plug.isConnected() && m_params.exportCamerasAnim)
{
plug.connectedTo(srcplugarray,true,false,&stat);
for (int i=0; i< srcplugarray.length(); i++)
{
if (srcplugarray[i].node().hasFn(MFn::kAnimCurve))
{
if (animCurve)
delete animCurve;
animCurve = new MFnAnimCurve(srcplugarray[i].node());
continue;
}
else if (i == srcplugarray.length()-1)
{
std::cout << "Invalid link to rotateX attribute\n";
return MS::kFailure;
}
}
m_params.outCameras << "anim " << animCurve->name().asChar() << "\n";
}
else
{
plug.getValue(angle);
m_params.outCameras << "= " << angle.asDegrees() << "\n";
}
//rotateY
m_params.outCameras << "\t\ty ";
plug = cameraTransform->findPlug("rotateY");
if (plug.isConnected() && m_params.exportCamerasAnim)
{
plug.connectedTo(srcplugarray,true,false,&stat);
for (int i=0; i< srcplugarray.length(); i++)
{
if (srcplugarray[i].node().hasFn(MFn::kAnimCurve))
{
if (animCurve)
delete animCurve;
animCurve = new MFnAnimCurve(srcplugarray[i].node());
continue;
}
else if (i == srcplugarray.length()-1)
{
std::cout << "Invalid link to rotateY attribute\n";
return MS::kFailure;
}
}
m_params.outCameras << "anim " << animCurve->name().asChar() << "\n";
}
else
{
plug.getValue(angle);
m_params.outCameras << "= " << angle.asDegrees() << "\n";
}
//rotateZ
m_params.outCameras << "\t\tz ";
plug = cameraTransform->findPlug("rotateZ");
if (plug.isConnected() && m_params.exportCamerasAnim)
{
plug.connectedTo(srcplugarray,true,false,&stat);
for (int i=0; i< srcplugarray.length(); i++)
{
if (srcplugarray[i].node().hasFn(MFn::kAnimCurve))
{
if (animCurve)
delete animCurve;
animCurve = new MFnAnimCurve(srcplugarray[i].node());
continue;
}
else if (i == srcplugarray.length()-1)
{
std::cout << "Invalid link to rotateZ attribute\n";
return MS::kFailure;
}
}
m_params.outCameras << "anim " << animCurve->name().asChar() << "\n";
}
else
{
plug.getValue(angle);
m_params.outCameras << "= " << angle.asDegrees() << "\n";
}
m_params.outCameras << "\t}\n";
// end camera description
m_params.outCameras << "}\n\n";
if (cameraTransform != NULL)
delete cameraTransform;
if (animCurve != NULL)
delete animCurve;
return MS::kSuccess;
}