MStatus liqAttachPrefAttribute::redoIt()
{
MFnTypedAttribute tAttr;
MStatus status;
for ( unsigned i( 0 ); i < objectNames.length(); i++ )
{
MSelectionList nodeList;
nodeList.add( objectNames[i] );
MObject depNodeObj;
nodeList.getDependNode( 0, depNodeObj );
MDagPath dagNode;
nodeList.getDagPath( 0, dagNode );
MFnDependencyNode depNode( depNodeObj );
MObject prefAttr;
MString attrName, varName;
// make sure the renderer description is up to date
liqglo.liquidRenderer.setRenderer();
// build the name of the attribute
varName = ( ( exportN && depNodeObj.hasFn( MFn::kMesh ) )? "N":"P" );
attrName = "rman";
attrName += varName;
attrName += ( ( liqglo.liquidRenderer.requires__PREF )? "__":"" );
attrName += varName + "ref";
// create the attribute
prefAttr = tAttr.create( attrName, attrName, MFnData::kPointArray );
if ( depNodeObj.hasFn( MFn::kNurbsSurface ) )
{
MFnNurbsSurface nodeFn( depNodeObj );
MPointArray nodePArray;
MItSurfaceCV cvs( dagNode, MObject::kNullObj, liqglo.liquidRenderer.requires_SWAPPED_UVS == false, &status );
while( !cvs.isDone() )
{
while( !cvs.isRowDone() )
{
MPoint pt = (worldSpace)? cvs.position( MSpace::kWorld ) : cvs.position( MSpace::kObject );
nodePArray.append( pt );
cvs.next();
}
cvs.nextRow();
}
nodeFn.addAttribute( prefAttr );
MFnPointArrayData pArrayData;
MObject prefDefault = pArrayData.create( nodePArray );
MPlug nodePlug( depNodeObj, prefAttr );
nodePlug.setValue( prefDefault );
}
else if ( depNodeObj.hasFn( MFn::kNurbsCurve ) )
{
// Carsten: added support for PREF on nurbs curves
//
MFnNurbsCurve nodeFn( depNodeObj );
MPointArray nodePArray;
nodeFn.getCVs( nodePArray );
nodeFn.addAttribute( prefAttr );
MFnPointArrayData pArrayData;
MObject prefDefault = pArrayData.create( nodePArray );
MPlug nodePlug( depNodeObj, prefAttr );
nodePlug.setValue( prefDefault );
}
else if ( depNodeObj.hasFn( MFn::kMesh ) )
{
MFnMesh nodeFn( depNodeObj );
// Moritz: modified this line to dim nodePArray -- otherwise
// nodePArray.set() in the wile loop below throws an exception
// which was why __Pref didn't work
MPointArray nodePArray( MFnMesh( depNodeObj ).numVertices() );
unsigned count;
nodeFn.addAttribute( prefAttr );
if ( exportN )
{
// export Nref
unsigned vertex;
unsigned normal;
unsigned face = 0;
unsigned faceVertex = 0;
unsigned int numNormals = nodeFn.numNormals();
unsigned int numPoints = nodeFn.numVertices();
MFloatVectorArray normals;
MVectorArray normalAttArray;
nodeFn.getNormals( normals );
if ( numNormals > numPoints )
{
// if we get more than 1 normal per vertex,
// force the arraysize to the full facevarying size
unsigned faceVaryingCount( 0 );
for ( unsigned pOn( 0 ); pOn < nodeFn.numPolygons(); pOn++ )
faceVaryingCount += nodeFn.polygonVertexCount( pOn );
normalAttArray.setLength( faceVaryingCount );
}
else
normalAttArray.setLength(normals.length());
for ( MItMeshPolygon polyIt ( depNodeObj ); polyIt.isDone() == false; polyIt.next() )
{
count = polyIt.polygonVertexCount();
while ( count > 0 )
{
--count;
normal = polyIt.normalIndex( count );
vertex = polyIt.vertexIndex( count );
if( numNormals == numPoints )
normalAttArray.set(normals[normal], vertex);
else
normalAttArray.set(normals[normal], faceVertex);
++faceVertex;
}
++face;
}
MFnVectorArrayData pArrayData;
MObject prefDefault = pArrayData.create( normalAttArray );
MPlug nodePlug( depNodeObj, prefAttr );
nodePlug.setValue( prefDefault );
}
else
{
// TODO: do we need to account for the altMeshExport algo that's
// used in liquidRibMeshData?
// Moritz: no, it's basically the same as the algo below
for ( MItMeshPolygon polyIt( dagNode, MObject::kNullObj ); !polyIt.isDone(); polyIt.next())
{
count = polyIt.polygonVertexCount();
while ( count > 0 )
{
--count;
unsigned vertexIndex = polyIt.vertexIndex( count );
MPoint nodePoint = (worldSpace)? polyIt.point( count, MSpace::kWorld ) : polyIt.point( count, MSpace::kObject );
// Moritz: this returns MS::kFailure but seems to work?!
nodePArray.set( nodePoint, vertexIndex );
}
}
MFnPointArrayData pArrayData;
MObject prefDefault = pArrayData.create( nodePArray );
MPlug nodePlug( depNodeObj, prefAttr );
nodePlug.setValue( prefDefault );
}
} else cerr << "Neither a Nurbs nor a Mesh !!" << endl;
}
return MS::kSuccess;
}
// --------------------------------------------------------------------------------------------
MStatus polyModifierCmd::processUpstreamNode( modifyPolyData& data )
// --------------------------------------------------------------------------------------------
{
MStatus status = MS::kSuccess;
// Declare our function sets - Although dagNodeFn derives from depNodeFn, we need
// both since dagNodeFn can only refer to DAG objects.
// We will use depNodeFn for all times other when dealing
// with the DAG.
//
MFnDependencyNode depNodeFn;
MFnDagNode dagNodeFn;
// Use the selected node's plug connections to find the upstream plug.
// Since we are looking at the selected node's inMesh attribute, it will
// always have only one connection coming in if it has history, and none
// otherwise.
//
// If there is no history, copy the selected node and place it ahead of the
// modifierNode as the new upstream node so that the modifierNode has an
// input mesh to operate on.
//
//save the meshDagPath for later use
MDagPath::getAPathTo(data.meshNodeShape,myMeshPath);
MPlugArray tempPlugArray;
if( fHasHistory )
{
// Since we have history, look for what connections exist on the
// meshNode "inMesh" plug. "inMesh" plugs should only ever have one
// connection.
//
data.meshNodeDestPlug.connectedTo( tempPlugArray, true, false);
// ASSERT: Only one connection should exist on meshNodeShape.inMesh!
//
MStatusAssert( (tempPlugArray.length() == 1),
"tempPlugArray.length() == 1 -- 0 or >1 connections on meshNodeShape.inMesh" );
data.upstreamNodeSrcPlug = tempPlugArray[0];
// Construction history only deals with shapes, so we can grab the
// upstreamNodeShape off of the source plug.
//
// Dieser Bereich muss bleiben, weil diese Attribute noch bentigt werden
data.upstreamNodeShape = data.upstreamNodeSrcPlug.node();
depNodeFn.setObject( data.upstreamNodeShape );
data.upstreamNodeSrcAttr = data.upstreamNodeSrcPlug.attribute();
// Disconnect the upstream node and the selected node, so we can
// replace them with our own connections below.
//
MPlug nodePlug(data.meshNodeShape,data.meshNodeDestAttr ) ;
INVIS(cout<<data.upstreamNodeSrcPlug.name().asChar()<<" --|-- "<<nodePlug.name().asChar()<<endl);
status = fDGModifier.disconnect( data.upstreamNodeSrcPlug,
nodePlug );
MCheckStatus( status, "Disconnect Upstream mit meshNode" );
}
else // No History (!fHasHistory)
{
// Use the DAG node function set to duplicate the shape of the meshNode.
// The duplicate method will return an MObject handle to the transform
// of the duplicated shape, so traverse the dag to locate the shape. Store
// this duplicate shape as our "upstream" node to drive the input for the
// modifierNode.
//
depNodeFn.setObject( data.meshNodeShape );
data.upstreamNodeTransform = createDuplicate.createNode("mesh");
createDuplicate.doIt();
dagNodeFn.setObject( data.upstreamNodeTransform );
// Ensure that our upstreamNode is pointing to a shape.
//
MStatusAssert( (0 < dagNodeFn.childCount()),
"0 < dagNodeFn.childCount() -- Duplicate meshNode transform has no shape." );
data.upstreamNodeShape = dagNodeFn.child(0);
MPlug outMeshPlug = depNodeFn.findPlug("outMesh");
depNodeFn.setObject(data.upstreamNodeShape);
//jetzt inMesh upstreamNodeShape mit outMesh meshShape füllen
MDGModifier tempMod;
tempMod.connect(outMeshPlug,depNodeFn.findPlug("inMesh"));
tempMod.doIt();
//force DGEVAL
MString cmd = "dgeval -src ";
cmd += depNodeFn.name();
cmd += ".outMesh";
MGlobal::executeCommand(cmd,false,false);
tempMod.undoIt();
// Re-parent the upstreamNodeShape under our original transform
//
reparentDuplicate.reparentNode( data.upstreamNodeShape, data.meshNodeTransform );
reparentDuplicate.doIt();
deleteDuplicate.deleteNode( data.upstreamNodeTransform );
deleteDuplicate.doIt();
/*
status = fDagModifier.reparentNode( data.upstreamNodeShape, data.meshNodeTransform );
MCheckStatus( status, "reparentNode" );
// Perform the DAG re-parenting
//
// Note: This reparent must be performed before the deleteNode() is called.
// See polyModifierCmd.h (see definition of fDagModifier) for more details.
//
status = fDagModifier.doIt();
MCheckStatus( status, "fDagModifier.doIt()" );
*/
// Mark the upstreamNodeShape (the original shape) as an intermediate object
// (making it invisible to the user)
//
dagNodeFn.setObject( data.upstreamNodeShape );
dagNodeFn.setIntermediateObject( true );
// Get the upstream node source attribute
//
data.upstreamNodeSrcAttr = dagNodeFn.attribute( "outMesh" );
data.upstreamNodeSrcPlug = MPlug(data.upstreamNodeShape, data.upstreamNodeSrcAttr);
/*
// Remove the duplicated transform node (clean up)
//
status = fDagModifier.deleteNode( data.upstreamNodeTransform );
MCheckStatus( status, "deleteNode" );
// Perform the DAG delete node
//
// Note: This deleteNode must be performed after the reparentNode() method is
// completed. See polyModifierCmd.h (see definition of fDagModifier) for
// details.
//
status = fDagModifier.doIt();
MCheckStatus( status, "fDagModifier.doIt()" );
*/
// Cache the DAG path to the duplicate shape
//
dagNodeFn.getPath( fDuplicateDagPath );
//finally delete the tweaks to avoid double transformation
deleteTweaks();
}
return status;
}
