MStatus CXRayCameraExport::ExportCamera(const MFileObject& file)
{
MDagPath node;
MObject component;
MSelectionList list;
MFnDagNode nodeFn;
MFnCamera C;
MStatus st ;
MGlobal::getActiveSelectionList( list );
for ( u32 index = 0; index < list.length(); ++index )
{
list.getDagPath ( index, node, component );
nodeFn.setObject ( node );
st = C.setObject (node);
if(st!=MStatus::kSuccess)
{
Msg ("Selected object is not a camera");
return MStatus::kInvalidParameter;
}
}
Msg("exporting camera named [%s]", C.name().asChar());
MTime tmTemp,tmTemp2;
MTime tmQuant;
// Remember the frame the scene was at so we can restore it later.
MTime storedFrame = MAnimControl::currentTime();
MTime startFrame = MAnimControl::minTime();
MTime endFrame = MAnimControl::maxTime();
tmTemp.setUnit (MTime::uiUnit());
tmTemp2.setUnit (MTime::uiUnit());
tmQuant.setUnit (MTime::uiUnit());
tmQuant = 10.0; //3 time in sec. temporary
COMotion M;
M.SetParam (0, (int)(endFrame-startFrame).as(MTime::uiUnit()), 30);
Fvector P,R;
tmTemp = startFrame;
MObject cam_parent = C.parent(0);
MFnTransform parentTransform(cam_parent);
MDistance dist;
while(tmTemp <= endFrame)
{
MAnimControl::setCurrentTime( tmTemp );
MMatrix parentMatrix = parentTransform.transformation().asMatrix();
MMatrix cv;
cv.setToIdentity ();
cv[2][2] = -1.0;
MMatrix TM;
TM = (cv*parentMatrix)*cv;
TM = cv*TM;
parentMatrix = TM;
Msg ("frame[%d]",(int)tmTemp.as(MTime::uiUnit()));
dist.setValue (parentMatrix[3][0]);
P.x = (float)dist.asMeters();
dist.setValue (parentMatrix[3][1]);
P.y = (float)dist.asMeters();
dist.setValue (parentMatrix[3][2]);
P.z = (float)dist.asMeters();
Msg ("P %3.3f,%3.3f,%3.3f",P.x,P.y,P.z);
double rot[3];
MTransformationMatrix::RotationOrder rot_order = MTransformationMatrix::kXYZ;
st = parentTransform.getRotation( rot, rot_order );
R.x = -(float)rot[0];
R.y = -(float)rot[1];
R.z = -(float)rot[2];
//. Msg ("rt %3.3f,%3.3f,%3.3f kWorld",R.x,R.y,R.z);
tmTemp2 = tmTemp-startFrame;
M.CreateKey (float(tmTemp2.as(MTime::uiUnit()))/30.0f,P,R);
if(tmTemp==endFrame)
break;
tmTemp += tmQuant;
if(tmTemp>endFrame)
tmTemp=endFrame;
};
MString fn_save_to = file.fullName();
fn_save_to += ".anm";
Msg("file full name [%s]", fn_save_to);
M.SaveMotion (fn_save_to.asChar());
MAnimControl::setCurrentTime( storedFrame );
return MS::kSuccess;
}
void DMPDSExporter::fillBones( DMPSkeletonData::SubSkeletonStruct* subSkel, string parent, DMPParameters* param, MDagPath& jointDag )
{
MStatus status;
if (jointDag.apiType() != MFn::kJoint)
{
return; // early out.
}
DMPSkeletonData::BoneStruct newBone;
newBone.boneHandle = (unsigned int)subSkel->bones.size();
newBone.name = jointDag.partialPathName().asUTF8();
newBone.parentName = parent;
MFnIkJoint fnJoint(jointDag, &status);
// matrix = [S] * [RO] * [R] * [JO] * [IS] * [T]
/*
These matrices are defined as follows:
•[S] : scale
•[RO] : rotateOrient (attribute name is rotateAxis)
•[R] : rotate
•[JO] : jointOrient
•[IS] : parentScaleInverse
•[T] : translate
The methods to get the value of these matrices are:
•[S] : getScale
•[RO] : getScaleOrientation
•[R] : getRotation
•[JO] : getOrientation
•[IS] : (the inverse of the getScale on the parent transformation matrix)
•[T] : translation
*/
MVector trans = fnJoint.getTranslation(MSpace::kTransform);
double scale[3];
fnJoint.getScale(scale);
MQuaternion R, RO, JO;
fnJoint.getScaleOrientation(RO);
fnJoint.getRotation(R);
fnJoint.getOrientation(JO);
MQuaternion rot = RO * R * JO;
newBone.translate[0] = trans.x * param->lum;
newBone.translate[1] = trans.y * param->lum;
newBone.translate[2] = trans.z * param->lum;
newBone.orientation[0] = rot.w;
newBone.orientation[1] = rot.x;
newBone.orientation[2] = rot.y;
newBone.orientation[3] = rot.z;
newBone.scale[0] = scale[0];
newBone.scale[1] = scale[1];
newBone.scale[2] = scale[2];
subSkel->bones.push_back(newBone);
// Load child joints
for (unsigned int i=0; i<jointDag.childCount();i++)
{
MObject child;
child = jointDag.child(i);
MDagPath childDag = jointDag;
childDag.push(child);
fillBones(subSkel, newBone.name, param, childDag);
}
// now go for animations
if (param->bExportSkelAnimation)
{
for (unsigned int i = 0; i < subSkel->animations.size(); ++i)
{
DMPSkeletonData::TransformAnimation& anim = subSkel->animations[i];
DMPSkeletonData::TransformTrack subTrack;
subTrack.targetBone = newBone.name;
MPlug plugT; // translate
MPlug plugR; // R
MPlug plugRO; // RO
MPlug plugJO; // JO
MPlug plugS; // scale
double dataT[3];
double dataR[3];
double dataRO[3];
double dataJO[3];
double dataS[3];
MFnDependencyNode fnDependNode( jointDag.node(), &status );
plugT = fnDependNode.findPlug("translate", false, &status);
plugR = fnDependNode.findPlug("rotate", false, &status);
plugRO = fnDependNode.findPlug("rotateAxis", false, &status);
plugJO = fnDependNode.findPlug("jointOrient", false, &status);
plugS = fnDependNode.findPlug("scale", false, &status);
float timeStep = param->samplerRate;
if (param->animSampleType == DMPParameters::AST_Frame)
{
timeStep /= param->fps;
}
for (float curTime = anim.startTime; curTime <= anim.endTime; curTime += timeStep)
{
MTime mayaTime;
DMPSkeletonData::TransformKeyFrame keyframe;
keyframe.time = curTime - anim.startTime;
mayaTime.setUnit(MTime::kSeconds);
mayaTime.setValue(curTime);
// Get its value at the specified Time.
plugT.child(0).getValue(dataT[0], MDGContext(mayaTime));
plugT.child(1).getValue(dataT[1], MDGContext(mayaTime));
plugT.child(2).getValue(dataT[2], MDGContext(mayaTime));
plugR.child(0).getValue(dataR[0], MDGContext(mayaTime));
plugR.child(1).getValue(dataR[1], MDGContext(mayaTime));
plugR.child(2).getValue(dataR[2], MDGContext(mayaTime));
plugRO.child(0).getValue(dataRO[0], MDGContext(mayaTime));
plugRO.child(1).getValue(dataRO[1], MDGContext(mayaTime));
plugRO.child(2).getValue(dataRO[2], MDGContext(mayaTime));
plugJO.child(0).getValue(dataJO[0], MDGContext(mayaTime));
plugJO.child(1).getValue(dataJO[1], MDGContext(mayaTime));
plugJO.child(2).getValue(dataJO[2], MDGContext(mayaTime));
plugS.child(0).getValue(dataS[0], MDGContext(mayaTime));
plugS.child(1).getValue(dataS[1], MDGContext(mayaTime));
plugS.child(2).getValue(dataS[2], MDGContext(mayaTime));
// fill the frame.
keyframe.translate[0] = dataT[0] * param->lum;
keyframe.translate[1] = dataT[1] * param->lum;
keyframe.translate[2] = dataT[2] * param->lum;
// calculate quaternion.
MEulerRotation rotR(dataR[0], dataR[1], dataR[2]);
MEulerRotation rotRO(dataRO[0], dataRO[1], dataRO[2]);
MEulerRotation rotJO(dataJO[0], dataJO[1], dataJO[2]);
MQuaternion finalRot = rotRO.asQuaternion()*rotR.asQuaternion()*rotJO.asQuaternion();
keyframe.orientation[0] = finalRot.w;
keyframe.orientation[1] = finalRot.x;
keyframe.orientation[2] = finalRot.y;
keyframe.orientation[3] = finalRot.z;
keyframe.scale[0] = dataS[0];
keyframe.scale[1] = dataS[1];
keyframe.scale[2] = dataS[2];
subTrack.frames.push_back(keyframe);
}
anim.tracks.push_back(subTrack);
}
}
}