MStatus
XmlCacheFormat::readDoubleVectorArray( MVectorArray& array, unsigned arraySize )
{
MStringArray value;
if( !readXmlTagValue(doubleVectorArrayTag, value) )
{
return MS::kFailure;
}
assert( value.length() == arraySize * 3 );
array.setLength( arraySize );
for (unsigned i = 0; i < arraySize; i++ )
{
double v[3];
v[0] = strtod( value[i*3].asChar(), NULL );
v[1] = strtod( value[i*3+1].asChar(), NULL );
v[2] = strtod( value[i*3+2].asChar(), NULL );
array.set( v, i );
}
return MS::kSuccess;
}
bool ToMayaMeshConverter::doConversion( IECore::ConstObjectPtr from, MObject &to, IECore::ConstCompoundObjectPtr operands ) const
{
MStatus s;
IECore::ConstMeshPrimitivePtr mesh = IECore::runTimeCast<const IECore::MeshPrimitive>( from );
assert( mesh );
if ( !mesh->arePrimitiveVariablesValid() )
{
return false;
}
MFloatPointArray vertexArray;
MIntArray polygonCounts;
MIntArray polygonConnects;
MFnMesh fnMesh;
int numVertices = 0;
IECore::PrimitiveVariableMap::const_iterator it = mesh->variables.find("P");
if ( it != mesh->variables.end() )
{
/// \todo Employ some M*Array converters to simplify this
IECore::ConstV3fVectorDataPtr p = IECore::runTimeCast<const IECore::V3fVectorData>(it->second.data);
if (p)
{
numVertices = p->readable().size();
vertexArray.setLength( numVertices );
for (int i = 0; i < numVertices; i++)
{
vertexArray[i] = IECore::convert<MFloatPoint, Imath::V3f>( p->readable()[i] );
}
}
else
{
IECore::ConstV3dVectorDataPtr p = IECore::runTimeCast<const IECore::V3dVectorData>(it->second.data);
if (p)
{
numVertices = p->readable().size();
vertexArray.setLength( numVertices );
for (int i = 0; i < numVertices; i++)
{
vertexArray[i] = IECore::convert<MFloatPoint, Imath::V3d>( p->readable()[i] );
}
}
else
{
// "P" is not convertible to an array of "points"
return false;
}
}
}
IECore::ConstIntVectorDataPtr verticesPerFace = mesh->verticesPerFace();
assert( verticesPerFace );
int numPolygons = verticesPerFace->readable().size();
polygonCounts.setLength( numPolygons );
for (int i = 0; i < numPolygons; i++)
{
polygonCounts[i] = verticesPerFace->readable()[i];
}
IECore::ConstIntVectorDataPtr vertexIds = mesh->vertexIds();
assert( vertexIds );
int numPolygonConnects = vertexIds->readable().size();
polygonConnects.setLength( numPolygonConnects );
for (int i = 0; i < numPolygonConnects; i++)
{
polygonConnects[i] = vertexIds->readable()[i];
}
MObject mObj = fnMesh.create( numVertices, numPolygons, vertexArray, polygonCounts, polygonConnects, to, &s );
if (!s)
{
return false;
}
it = mesh->variables.find("N");
if ( it != mesh->variables.end() )
{
if (it->second.interpolation == IECore::PrimitiveVariable::FaceVarying )
{
/// \todo Employ some M*Array converters to simplify this
MVectorArray vertexNormalsArray;
IECore::ConstV3fVectorDataPtr n = IECore::runTimeCast<const IECore::V3fVectorData>(it->second.data);
if (n)
{
int numVertexNormals = n->readable().size();
vertexNormalsArray.setLength( numVertexNormals );
for (int i = 0; i < numVertexNormals; i++)
{
vertexNormalsArray[i] = IECore::convert<MVector, Imath::V3f>( n->readable()[i] );
}
}
else
{
IECore::ConstV3dVectorDataPtr n = IECore::runTimeCast<const IECore::V3dVectorData>(it->second.data);
if (n)
{
int numVertexNormals = n->readable().size();
vertexNormalsArray.setLength( numVertexNormals );
for (int i = 0; i < numVertexNormals; i++)
{
vertexNormalsArray[i] = IECore::convert<MVector, Imath::V3d>( n->readable()[i] );
}
}
else
{
IECore::msg( IECore::Msg::Warning, "ToMayaMeshConverter::doConversion", boost::format( "PrimitiveVariable \"N\" has unsupported type \"%s\"." ) % it->second.data->typeName() );
}
}
if ( vertexNormalsArray.length() )
{
MStatus status;
MItMeshPolygon itPolygon( mObj, &status );
if( status != MS::kSuccess )
{
IECore::msg( IECore::Msg::Warning, "ToMayaMeshConverter::doConversion", "Failed to create mesh iterator" );
}
unsigned v = 0;
MIntArray vertexIds;
MIntArray faceIds;
for ( ; !itPolygon.isDone(); itPolygon.next() )
{
for ( v=0; v < itPolygon.polygonVertexCount(); ++v )
{
faceIds.append( itPolygon.index() );
vertexIds.append( itPolygon.vertexIndex( v ) );
}
}
if( !fnMesh.setFaceVertexNormals( vertexNormalsArray, faceIds, vertexIds ) )
{
IECore::msg( IECore::Msg::Warning, "ToMayaMeshConverter::doConversion", "Setting normals failed" );
}
}
}
else
{
IECore::msg( IECore::Msg::Warning, "ToMayaMeshConverter::doConversion", "PrimitiveVariable \"N\" has unsupported interpolation (expected FaceVarying)." );
}
}
bool haveDefaultUVs = false;
IECore::PrimitiveVariableMap::const_iterator sIt = mesh->variables.find( "s" );
IECore::RefCountedPtr sDataRef = ( sIt == mesh->variables.end() ) ? 0 : static_cast<IECore::RefCountedPtr>( sIt->second.data );
/// Add named UV sets
std::set< std::string > uvSets;
for ( it = mesh->variables.begin(); it != mesh->variables.end(); ++it )
{
const std::string &sName = it->first;
size_t suffixOffset = sName.rfind( "_s" );
if ( ( suffixOffset != std::string::npos) && ( suffixOffset == sName.length() - 2 ) )
{
std::string uvSetNameStr = sName.substr( 0, suffixOffset );
if ( uvSetNameStr.size() )
{
MString uvSetName = uvSetNameStr.c_str();
std::string tName = uvSetNameStr + "_t";
std::string stIdName = uvSetNameStr + "Indices";
addUVSet( fnMesh, polygonCounts, mesh, sName, tName, stIdName, &uvSetName );
uvSets.insert( uvSetNameStr );
if ( sDataRef == static_cast<IECore::RefCountedPtr>( it->second.data ) )
{
haveDefaultUVs = true;
}
}
}
}
/// Add default UV set if it isn't just a reference to a named set
if ( !haveDefaultUVs )
{
addUVSet( fnMesh, polygonCounts, mesh, "s", "t", "stIndices" );
}
// We do the search again, but looking for primvars ending "_t", so we can catch cases where either "UVSETNAME_s" or "UVSETNAME_t" is present, but not both, taking care
// not to attempt adding any duplicate sets
for ( it = mesh->variables.begin(); it != mesh->variables.end(); ++it )
{
const std::string &tName = it->first;
size_t suffixOffset = tName.rfind( "_t" );
if ( ( suffixOffset != std::string::npos) && ( suffixOffset == tName.length() - 2 ) )
{
std::string uvSetNameStr = tName.substr( 0, suffixOffset );
if ( uvSetNameStr.size() && uvSets.find( uvSetNameStr ) == uvSets.end() )
{
MString uvSetName = uvSetNameStr.c_str();
std::string sName = uvSetNameStr + "_s";
std::string stIdName = uvSetNameStr + "Indices";
addUVSet( fnMesh, polygonCounts, mesh, sName, tName, stIdName, &uvSetName );
uvSets.insert( uvSetNameStr );
}
}
}
/// If we're making a mesh node (rather than a mesh data) then make sure it belongs
/// to the default shading group and add the ieMeshInterpolation attribute.
MObject oMesh = fnMesh.object();
if( oMesh.apiType()==MFn::kMesh )
{
assignDefaultShadingGroup( oMesh );
setMeshInterpolationAttribute( oMesh, mesh->interpolation() );
}
/// \todo Other primvars, e.g. vertex color ("Cs")
return true;
}
MString CBPoseSpaceCmd::cacheResult(const MPointArray& bindPoints, const MPointArray& posePoints, const MVectorArray& dx, const MVectorArray& dy, const MVectorArray& dz)
{
MDGModifier modif;
MObject opose = modif.createNode("sculptSpaceRecord");
modif.doIt();
unsigned count = dx.length();
MVectorArray row0Array;
row0Array.setLength(count);
MVectorArray row1Array;
row1Array.setLength(count);
MVectorArray row2Array;
row2Array.setLength(count);
MVectorArray row3Array;
row3Array.setLength(count);
MVectorArray bndArray;
bndArray.setLength(count);
MVectorArray posArray;
posArray.setLength(count);
float m[4][4];
for(unsigned i=0; i < count; i++) {
m[0][0] = dx[i].x;
m[0][1] = dx[i].y;
m[0][2] = dx[i].z;
m[0][3] = 0.f;
m[1][0] = dy[i].x;
m[1][1] = dy[i].y;
m[1][2] = dy[i].z;
m[1][3] = 0.f;
m[2][0] = dz[i].x;
m[2][1] = dz[i].y;
m[2][2] = dz[i].z;
m[2][3] = 0.f;
m[3][0] = 0.f;
m[3][1] = 0.f;
m[3][2] = 0.f;
m[3][3] = 1.f;
MMatrix tm(m);
tm = tm.inverse();
tm.get(m);
row0Array[i].x = m[0][0];
row0Array[i].y = m[0][1];
row0Array[i].z = m[0][2];
row1Array[i].x = m[1][0];
row1Array[i].y = m[1][1];
row1Array[i].z = m[1][2];
row2Array[i].x = m[2][0];
row2Array[i].y = m[2][1];
row2Array[i].z = m[2][2];
row3Array[i].x = m[3][0];
row3Array[i].y = m[3][1];
row3Array[i].z = m[3][2];
bndArray[i] = bindPoints[i];
posArray[i] = posePoints[i];
}
MFnDependencyNode fposec(opose);
MStatus stat;
MPlug pspacerow0 = fposec.findPlug("poseSpaceRow0", false, &stat);
MPlug pspacerow1 = fposec.findPlug("poseSpaceRow1", false, &stat);
MPlug pspacerow2 = fposec.findPlug("poseSpaceRow2", false, &stat);
MPlug pspacerow3 = fposec.findPlug("poseSpaceRow3", false, &stat);
MPlug pbind = fposec.findPlug("bpnt", false, &stat);
MPlug ppose = fposec.findPlug("ppnt", false, &stat);
MFnVectorArrayData frow0;
MObject orow0 = frow0.create(row0Array);
pspacerow0.setMObject(orow0);
MFnVectorArrayData frow1;
MObject orow1 = frow1.create(row1Array);
pspacerow1.setMObject(orow1);
MFnVectorArrayData frow2;
MObject orow2 = frow2.create(row2Array);
pspacerow2.setMObject(orow2);
MFnVectorArrayData frow3;
MObject orow3 = frow3.create(row3Array);
pspacerow3.setMObject(orow3);
MFnVectorArrayData fbind;
MObject obind = fbind.create(bndArray);
pbind.setMObject(obind);
MFnVectorArrayData fpose;
MObject oposed = fpose.create(posArray);
ppose.setMObject(oposed);
return fposec.name();
}
void CBPoseSpaceCmd::calculateVertexPoseSpace(const MObject& poseMesh, const MObject& bindMesh)
{
MStatus status;
MFnMesh poseFn(poseMesh, &status);
MPointArray originalPoseVertex;
poseFn.getPoints ( originalPoseVertex, MSpace::kObject );
unsigned numVert = originalPoseVertex.length();
MFnMesh bindFn(bindMesh, &status);
MPointArray originalbindVertex;
bindFn.getPoints ( originalbindVertex, MSpace::kObject );
MPointArray movedVertex(originalbindVertex);
for(unsigned i=0; i < numVert; i++)
{
movedVertex[i].x = originalbindVertex[i].x + 1.0;
}
bindFn.setPoints(movedVertex, MSpace::kObject );
bindFn.updateSurface();
poseFn.updateSurface();
MPointArray xPoseVertex;
poseFn.getPoints ( xPoseVertex, MSpace::kObject );
MVectorArray dirx;
dirx.setLength(numVert);
for(unsigned i=0; i < numVert; i++) {
dirx[i] = xPoseVertex[i] - originalPoseVertex[i];
}
for(unsigned i=0; i < numVert; i++) {
movedVertex[i].x = originalbindVertex[i].x;
movedVertex[i].y = originalbindVertex[i].y + 1.0;
}
bindFn.setPoints(movedVertex, MSpace::kObject );
bindFn.updateSurface();
poseFn.updateSurface();
poseFn.getPoints ( xPoseVertex, MSpace::kObject );
MVectorArray diry;
diry.setLength(numVert);
for(unsigned i=0; i < numVert; i++) {
diry[i] = xPoseVertex[i] - originalPoseVertex[i];
}
for(unsigned i=0; i < numVert; i++) {
movedVertex[i].y = originalbindVertex[i].y;
movedVertex[i].z = originalbindVertex[i].z + 1.0;
}
bindFn.setPoints(movedVertex, MSpace::kObject );
bindFn.updateSurface();
poseFn.updateSurface();
poseFn.getPoints ( xPoseVertex, MSpace::kObject );
MVectorArray dirz;
dirz.setLength(numVert);
for(unsigned i=0; i < numVert; i++) {
dirz[i] = xPoseVertex[i] - originalPoseVertex[i];
}
bindFn.setPoints(originalbindVertex, MSpace::kObject );
bindFn.updateSurface();
const MString cacheNodeName = cacheResult(originalbindVertex, originalPoseVertex, dirx, diry, dirz);
MGlobal::displayInfo(MString("correct shape recordes ") + numVert + " points in " + cacheNodeName);
setResult(cacheNodeName);
}
void
simpleFluidEmitter::surfaceFluidEmitter(
MFnFluid& fluid,
const MMatrix& fluidWorldMatrix,
int plugIndex,
MDataBlock& block,
double dt,
double conversion,
double dropoff
)
//==============================================================================
//
// Method:
//
// simpleFluidEmitter::surfaceFluidEmitter
//
// Description:
//
// Emits fluid from one of a predefined set of volumes (cube, sphere,
// cylinder, cone, torus).
//
// Parameters:
//
// fluid: fluid into which we are emitting
// fluidWorldMatrix: object->world matrix for the fluid
// plugIndex: identifies which fluid connected to the emitter
// we are emitting into
// block: datablock for the emitter, to retrieve attribute
// values
// dt: time delta for this frame
// conversion: mapping from UI emission rates to internal units
// dropoff: specifies how much emission rate drops off as
// the surface points move away from the centers
// of the voxels in which they lie.
//
// Notes:
//
// To associate an owner object with an emitter, use the
// addDynamic MEL command, e.g. "addDynamic simpleFluidEmitter1 pPlane1".
//
//==============================================================================
{
// get relevant world matrices
//
MMatrix fluidInverseWorldMatrix = fluidWorldMatrix.inverse();
// get emission rates for density, fuel, heat, and emission color
//
double densityEmit = fluidDensityEmission( block );
double fuelEmit = fluidFuelEmission( block );
double heatEmit = fluidHeatEmission( block );
bool doEmitColor = fluidEmitColor( block );
MColor emitColor = fluidColor( block );
// rate modulation based on frame time, user value conversion factor, and
// standard emitter "rate" value (not actually exposed in most fluid
// emitters, but there anyway).
//
double theRate = getRate(block) * dt * conversion;
// get voxel dimensions and sizes (object space)
//
double size[3];
unsigned int res[3];
fluid.getDimensions( size[0], size[1], size[2] );
fluid.getResolution( res[0], res[1], res[2] );
// voxel sizes
double dx = size[0] / res[0];
double dy = size[1] / res[1];
double dz = size[2] / res[2];
// voxel centers
double Ox = -size[0]/2;
double Oy = -size[1]/2;
double Oz = -size[2]/2;
// get the "swept geometry" data for the emitter surface. This structure
// tracks the motion of each emitter triangle over the time interval
// for this simulation step. We just use positions on the emitter
// surface at the end of the time step to do the emission.
//
MDataHandle sweptHandle = block.inputValue( mSweptGeometry );
MObject sweptData = sweptHandle.data();
MFnDynSweptGeometryData fnSweptData( sweptData );
// for "non-jittered" sampling, just reset the random state for each
// triangle, which gives us a fixed set of samples all the time.
// Sure, they're still jittered, but they're all jittered the same,
// which makes them kinda uniform.
//
bool jitter = fluidJitter(block);
if( !jitter )
{
resetRandomState( plugIndex, block );
}
if( fnSweptData.triangleCount() > 0 )
{
// average voxel face area - use this as the canonical unit that
// receives the emission rate specified by the users. Scale the
// rate for other triangles accordingly.
//
double vfArea = pow(dx*dy*dz, 2.0/3.0);
// very rudimentary support for textured emission rate and
// textured emission color. We simply sample each texture once
// at the center of each emitter surface triangle. This will
// cause aliasing artifacts when these triangles are large.
//
MFnDependencyNode fnNode( thisMObject() );
MObject rateTextureAttr = fnNode.attribute( "textureRate" );
MObject colorTextureAttr = fnNode.attribute( "particleColor" );
bool texturedRate = hasValidEmission2dTexture( rateTextureAttr );
bool texturedColor = hasValidEmission2dTexture( colorTextureAttr );
// construct texture coordinates for each triangle center
//
MDoubleArray uCoords, vCoords;
if( texturedRate || texturedColor )
{
uCoords.setLength( fnSweptData.triangleCount() );
vCoords.setLength( fnSweptData.triangleCount() );
int t;
for( t = 0; t < fnSweptData.triangleCount(); t++ )
{
MDynSweptTriangle tri = fnSweptData.sweptTriangle( t );
MVector uv0 = tri.uvPoint(0);
MVector uv1 = tri.uvPoint(1);
MVector uv2 = tri.uvPoint(2);
MVector uvMid = (uv0+uv1+uv2)/3.0;
uCoords[t] = uvMid[0];
vCoords[t] = uvMid[1];
}
}
// evaluate textured rate and color values at the triangle centers
//
MDoubleArray texturedRateValues;
if( texturedRate )
{
texturedRateValues.setLength( uCoords.length() );
evalEmission2dTexture( rateTextureAttr, uCoords, vCoords, NULL, &texturedRateValues );
}
MVectorArray texturedColorValues;
if( texturedColor )
{
texturedColorValues.setLength( uCoords.length() );
evalEmission2dTexture( colorTextureAttr, uCoords, vCoords, &texturedColorValues, NULL );
}
for( int t = 0; t < fnSweptData.triangleCount(); t++ )
{
// calculate emission rate and color values for this triangle
//
double curTexturedRate = texturedRate ? texturedRateValues[t] : 1.0;
MColor curTexturedColor;
if( texturedColor )
{
MVector& curVec = texturedColorValues[t];
curTexturedColor.r = (float)curVec[0];
curTexturedColor.g = (float)curVec[1];
curTexturedColor.b = (float)curVec[2];
curTexturedColor.a = 1.0;
}
else
{
curTexturedColor = emitColor;
}
MDynSweptTriangle tri = fnSweptData.sweptTriangle( t );
MVector v0 = tri.vertex(0);
MVector v1 = tri.vertex(1);
MVector v2 = tri.vertex(2);
// compute number of samples for this triangle based on area,
// with large triangles receiving approximately 1 sample for
// each voxel that they intersect
//
double triArea = tri.area();
int numSamples = (int)(triArea / vfArea);
if( numSamples < 1 ) numSamples = 1;
// compute emission rate for the points on the triangle.
// Scale the canonical rate by the area ratio of this triangle
// to the average voxel size, then split it amongst all the samples.
//
double triRate = (theRate*(triArea/vfArea))/numSamples;
triRate *= curTexturedRate;
for( int j = 0; j < numSamples; j++ )
{
// generate a random point on the triangle,
// map it into fluid local space
//
double r1 = randgen();
double r2 = randgen();
if( r1 + r2 > 1 )
{
r1 = 1-r1;
r2 = 1-r2;
}
double r3 = 1 - (r1+r2);
MPoint randPoint = r1*v0 + r2*v1 + r3*v2;
randPoint *= fluidInverseWorldMatrix;
// figure out where the current point lies
//
::int3 coord;
fluid.toGridIndex( randPoint, coord );
if( (coord[0]<0) || (coord[1]<0) || (coord[2]<0) ||
(coord[0]>=(int)res[0]) || (coord[1]>=(int)res[1]) || (coord[2]>=(int)res[2]) )
{
continue;
}
// do some falloff based on how far from the voxel center
// the current point lies
//
MPoint gridPoint;
gridPoint.x = Ox + (coord[0]+0.5)*dx;
gridPoint.y = Oy + (coord[1]+0.5)*dy;
gridPoint.z = Oz + (coord[2]+0.5)*dz;
MVector diff = gridPoint - randPoint;
double distSquared = diff * diff;
double distDrop = dropoff * distSquared;
double newVal = triRate * exp( -distDrop );
// emit into the voxel
//
if( newVal != 0 )
{
fluid.emitIntoArrays( (float) newVal, coord[0], coord[1], coord[2], (float)densityEmit, (float)heatEmit, (float)fuelEmit, doEmitColor, curTexturedColor );
}
}
}
}
}
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;
}
//
// Main routine
///////////////////////////////////////////////////////////////////////////////
MStatus particleSystemInfoCmd::doIt( const MArgList& args )
{
MStatus stat = parseArgs( args );
if( stat != MS::kSuccess ) return stat;
if( particleNode.isNull() ) {
MObject parent;
MFnParticleSystem dummy;
particleNode = dummy.create(&stat);
CHECKRESULT(stat,"MFnParticleSystem::create(status) failed!");
MFnParticleSystem ps( particleNode, &stat );
CHECKRESULT(stat,"MFnParticleSystem::MFnParticleSystem(MObject,status) failed!");
MPointArray posArray;
posArray.append(MPoint(-5, 5, 0));
posArray.append(MPoint(-5, 10, 0));
MVectorArray velArray;
velArray.append(MPoint(1, 1, 0));
velArray.append(MPoint(1, 1, 0));
stat = ps.emit(posArray, velArray);
CHECKRESULT(stat,"MFnParticleSystem::emit(posArray,velArray) failed!");
stat = ps.emit(MPoint(5, 5, 0));
CHECKRESULT(stat,"MFnParticleSystem::emit(pos) failed!");
stat = ps.emit(MPoint(5, 10, 0));
CHECKRESULT(stat,"MFnParticleSystem::emit(pos) failed!");
stat = ps.saveInitialState();
CHECKRESULT(stat,"MFnParticleSystem::saveInitialState() failed!");
MVectorArray accArray;
accArray.setLength(4);
for( unsigned int i=0; i<accArray.length(); i++ )
{
MVector& acc = accArray[i];
acc.x = acc.y = acc.z = 3.0;
}
MString accName("acceleration");
ps.setPerParticleAttribute( accName, accArray, &stat );
CHECKRESULT(stat,"MFnParticleSystem::setPerParticleAttribute(vectorArray) failed!");
}
MFnParticleSystem ps( particleNode, &stat );
CHECKRESULT(stat,"MFnParticleSystem::MFnParticleSystem(MObject,status) failed!");
if( ! ps.isValid() )
{
MGlobal::displayError( "The function set is invalid!" );
return MS::kFailure;
}
const MString name = ps.particleName();
const MFnParticleSystem::RenderType psType = ps.renderType();
const unsigned int count = ps.count();
const char* typeString = NULL;
switch( psType )
{
case MFnParticleSystem::kCloud:
typeString = "Cloud";
break;
case MFnParticleSystem::kTube:
typeString = "Tube system";
break;
case MFnParticleSystem::kBlobby:
typeString = "Blobby";
break;
case MFnParticleSystem::kMultiPoint:
typeString = "MultiPoint";
break;
case MFnParticleSystem::kMultiStreak:
typeString = "MultiStreak";
break;
case MFnParticleSystem::kNumeric:
typeString = "Numeric";
break;
case MFnParticleSystem::kPoints:
typeString = "Points";
break;
case MFnParticleSystem::kSpheres:
typeString = "Spheres";
break;
case MFnParticleSystem::kSprites:
typeString = "Sprites";
break;
case MFnParticleSystem::kStreak:
typeString = "Streak";
break;
default:
typeString = "Particle system";
assert( false );
break;
}
char buffer[256];
sprintf( buffer, "%s \"%s\" has %u primitives.", typeString, name.asChar(), count );
MGlobal::displayInfo( buffer );
unsigned i;
MIntArray ids;
ps.particleIds( ids );
sprintf( buffer, "count : %u ", count );
MGlobal::displayInfo( buffer );
sprintf( buffer, "%u ids.", ids.length() );
MGlobal::displayInfo( buffer );
assert( ids.length() == count );
for( i=0; i<ids.length(); i++ )
{
sprintf( buffer, "id %d ", ids[i] );
MGlobal::displayInfo( buffer );
}
MVectorArray positions;
ps.position( positions );
assert( positions.length() == count );
for( i=0; i<positions.length(); i++ )
{
MVector& p = positions[i];
sprintf( buffer, "pos %f %f %f ", p[0], p[1], p[2] );
MGlobal::displayInfo( buffer );
}
MVectorArray vels;
ps.velocity( vels );
assert( vels.length() == count );
for( i=0; i<vels.length(); i++ )
{
const MVector& v = vels[i];
sprintf( buffer, "vel %f %f %f ", v[0], v[1], v[2] );
MGlobal::displayInfo( buffer );
}
MVectorArray accs;
ps.acceleration( accs );
assert( accs.length() == count );
for( i=0; i<accs.length(); i++ )
{
const MVector& a = accs[i];
sprintf( buffer, "acc %f %f %f ", a[0], a[1], a[2] );
MGlobal::displayInfo( buffer );
}
bool flag = ps.isDeformedParticleShape(&stat);
CHECKRESULT(stat,"MFnParticleSystem::isDeformedParticleShape() failed!");
if( flag ) {
MObject obj = ps.originalParticleShape(&stat);
CHECKRESULT(stat,"MFnParticleSystem::originalParticleShape() failed!");
if( obj != MObject::kNullObj ) {
MFnParticleSystem ps( obj );
sprintf( buffer, "original particle shape : %s ", ps.particleName().asChar() );
MGlobal::displayInfo( buffer );
}
}
flag = ps.isDeformedParticleShape(&stat);
CHECKRESULT(stat,"MFnParticleSystem::isDeformedParticleShape() failed!");
if( !flag ) {
MObject obj = ps.deformedParticleShape(&stat);
CHECKRESULT(stat,"MFnParticleSystem::deformedParticleShape() failed!");
if( obj != MObject::kNullObj ) {
MFnParticleSystem ps( obj );
sprintf( buffer, "deformed particle shape : %s ", ps.particleName().asChar() );
MGlobal::displayInfo( buffer );
}
}
if( ids.length() == positions.length() &&
ids.length() == vels.length() &&
ids.length() == accs.length() ) {
setResult( int(ids.length()) );
} else {
setResult( int(-1) );
}
return MS::kSuccess;
}
