示例#1
0
// Reference: OSD shape_utils.h:: applyTags() "corner"
static float
getCreaseVertices( MFnMesh const & inMeshFn, Descriptor & outDesc) {

    MUintArray tVertexIds;
    MDoubleArray tCreaseData;
    float maxCreaseValue = 0.0f;

    if ( inMeshFn.getCreaseVertices(tVertexIds, tCreaseData) ) {

        assert( tVertexIds.length() == tCreaseData.length() );

        int    ncorners = tVertexIds.length();
        int *     verts = new int[ncorners*2];
        float * weights = new float[ncorners];

        // Has crease vertices
        for (unsigned int j=0; j < tVertexIds.length(); j++) {

            assert( tCreaseData[j] >= 0.0 );

            verts[j] = tVertexIds[j];
            weights[j] = float(tCreaseData[j]);

            maxCreaseValue = std::max(float(tCreaseData[j]), maxCreaseValue);
        }

        outDesc.numCorners = ncorners;
        outDesc.cornerVertexIndices = verts;
        outDesc.cornerWeights = weights;
    }
    return maxCreaseValue;
}
示例#2
0
// Reference: OSD shape_utils.h:: applyTags() "corner"
float
applyCreaseVertices( MFnMesh const & inMeshFn, HMesh * hbrMesh ) {

    MUintArray tVertexIds;
    MDoubleArray tCreaseData;
    float maxCreaseValue = 0.0f;

    if ( inMeshFn.getCreaseVertices(tVertexIds, tCreaseData) ) {

        assert( tVertexIds.length() == tCreaseData.length() );

        // Has crease vertices
        for (unsigned int j=0; j < tVertexIds.length(); j++) {

            // Assumption: The OSD vert ids are identical to those of the Maya mesh

            HVertex * v = hbrMesh->GetVertex( tVertexIds[j] );
            if(v) {

                assert( tCreaseData[j] >= 0.0 );

                v->SetSharpness( (float)tCreaseData[j] );

                maxCreaseValue = std::max(float(tCreaseData[j]), maxCreaseValue);
            } else {
                fprintf(stderr,
                    "warning: cannot find vertex for corner tag (%d)\n",
                        tVertexIds[j] );
           }
        }
    }
    return maxCreaseValue;
}
示例#3
0
// Reference: OSD shape_utils.h:: applyTags() "crease"
static float
getCreaseEdges(MFnMesh const & inMeshFn, Descriptor & outDesc) {

    MUintArray tEdgeIds;
    MDoubleArray tCreaseData;
    float maxCreaseValue = 0.0f;

    if (inMeshFn.getCreaseEdges(tEdgeIds, tCreaseData)) {

        assert( tEdgeIds.length() == tCreaseData.length() );

        int    ncreases = tEdgeIds.length();
        int * vertPairs = new int[ncreases*2];
        float * weights = new float[ncreases];

        int2 edgeVerts;
        for (unsigned int j=0; j < tEdgeIds.length(); j++) {

            assert( tCreaseData[j] >= 0.0 );
            inMeshFn.getEdgeVertices(tEdgeIds[j], edgeVerts);

            vertPairs[j*2  ] = edgeVerts[0];
            vertPairs[j*2+1] = edgeVerts[1];
            weights[j] = float(tCreaseData[j]);
            maxCreaseValue = std::max(float(tCreaseData[j]), maxCreaseValue);
        }

        outDesc.numCreases = ncreases;
        outDesc.creaseVertexIndexPairs = vertPairs;
        outDesc.creaseWeights = weights;
    }
    return maxCreaseValue;
}
示例#4
0
// Reference: OSD shape_utils.h:: applyTags() "crease"
float
applyCreaseEdges(MFnMesh const & inMeshFn, HMesh * hbrMesh) {

    MStatus returnStatus;
    MUintArray tEdgeIds;
    MDoubleArray tCreaseData;
    float maxCreaseValue = 0.0f;

    if (inMeshFn.getCreaseEdges(tEdgeIds, tCreaseData)) {

        assert( tEdgeIds.length() == tCreaseData.length() );

        // Has crease edges
        int2 edgeVerts;
        for (unsigned int j=0; j < tEdgeIds.length(); j++) {

            // Get vert ids from maya edge
            int edgeId = tEdgeIds[j];
            returnStatus = inMeshFn.getEdgeVertices(edgeId, edgeVerts);

            // Assumption: The OSD vert ids are identical to those of the Maya mesh
            HVertex const * v = hbrMesh->GetVertex( edgeVerts[0] ),
                          * w = hbrMesh->GetVertex( edgeVerts[1] );

            HHalfedge * e = 0;
            if( v and w ) {

                if( (e = v->GetEdge(w)) == 0) {
                    e = w->GetEdge(v);
                }

                if(e) {
                    assert( tCreaseData[j] >= 0.0 );
                    e->SetSharpness( (float)tCreaseData[j] );

                    maxCreaseValue = std::max(float(tCreaseData[j]), maxCreaseValue);
                } else {
                    fprintf(stderr,
                        "warning: cannot find edge for crease tag (%d,%d)\n",
                            edgeVerts[0], edgeVerts[1] );
                }
            }
        }
    }
    return maxCreaseValue;
}
void liqRibSubdivisionData::addExtraTags( MObject &mesh, SBD_EXTRA_TAG extraTag )
{
	CM_TRACE_FUNC("liqRibSubdivisionData::addExtraTags("<<MFnDagNode(mesh).fullPathName()<<","<<extraTag<<")");

	MStatus status;
	MFnMesh fnMesh( mesh );
	MUintArray ids;
	MDoubleArray creaseData;

	if( TAG_CREASE == extraTag )
	{
		status = fnMesh.getCreaseEdges( ids, creaseData );
		if( status == MS::kSuccess )
		{
			MItMeshEdge itEdge( mesh );
			int prevIndex;
			for( unsigned i( 0 ); i < ids.length(); i++ )
			{
				v_tags.push_back( "crease" );
				v_nargs.push_back( 2 );
				v_nargs.push_back( 1 );
				itEdge.setIndex( ids[i], prevIndex );
				v_intargs.push_back( itEdge.index( 0 ) );
				v_intargs.push_back( itEdge.index( 1 ) );
				v_floatargs.push_back( creaseData[i] );
			}
		}
	}
	if( TAG_CORNER == extraTag )
	{
		status = fnMesh.getCreaseVertices( ids, creaseData );
		if( status == MS::kSuccess )
		{
			for( unsigned i( 0 ); i < ids.length(); i++ )
			{
				v_tags.push_back( "corner" );
				v_nargs.push_back( 1 );
				v_nargs.push_back( 1 );
				v_intargs.push_back( ids[i] );
				v_floatargs.push_back( creaseData[i] );
			}
		}

	}
}
示例#6
0
void userCB( MUintArray componentIds[], unsigned int count, void *clientData )
{
    cout << "poly component id modified";
    cout << endl;

    if ( count != MPolyMessage::kLastErrorIndex )
        return;

    unsigned int i, id;
    unsigned int kDeletedId = MPolyMessage::deletedId();
    MUintArray vertexIds = componentIds[MPolyMessage::kVertexIndex];
    for ( i = 0; i < vertexIds.length(); i++ )
    {
        id = vertexIds[i];
        if ( id == kDeletedId )
            cout << "vertex " << i << " deleted" << endl;
        else if ( i != id )
            cout << "vertex " << i << " " << id << endl;
    }

    MUintArray edgeIds = componentIds[MPolyMessage::kEdgeIndex];
    for ( i = 0; i < edgeIds.length(); i++ )
    {
        id = edgeIds[i];
        if ( id == kDeletedId )
            cout << "edge " << i << " deleted"  << endl;
        else if ( i != id )
            cout << "edge " << i << " " << id << endl;
    }

    MUintArray faceIds = componentIds[MPolyMessage::kFaceIndex];
    for ( i = 0; i < faceIds.length(); i++ )
    {
        id = faceIds[i];
        if ( id == kDeletedId )
            cout << "face " << i << " deleted" << endl;
        else if ( i != id )
            cout << "face " << i << " " << id << endl;
    }
}
示例#7
0
void
OsdPtexMeshData::rebuildHbrMeshIfNeeded(OpenSubdivPtexShader *shader)
{
    MStatus status;

    if (!_meshTopoDirty && !shader->getHbrMeshDirty())
        return;

    MFnMesh meshFn(_meshDagPath, &status);
    if (status != MS::kSuccess) return;

    int level = shader->getLevel();
    if (level < 1) level =1;

    SchemeType scheme = shader->getScheme();
    if (scheme == kLoop) scheme = kCatmark;  // XXX: avoid loop for now

    // Get Maya vertex topology and crease data
    MIntArray vertexCount;
    MIntArray vertexList;
    meshFn.getVertices(vertexCount, vertexList);

    MUintArray edgeIds;
    MDoubleArray edgeCreaseData;
    meshFn.getCreaseEdges(edgeIds, edgeCreaseData);

    MUintArray vtxIds;
    MDoubleArray vtxCreaseData;
    meshFn.getCreaseVertices(vtxIds, vtxCreaseData);

    if (vertexCount.length() == 0) return;

    // Cache attribute values
    _level              = shader->getLevel();
    _scheme             = shader->getScheme();
    _kernel             = shader->getKernel();
    _adaptive           = shader->isAdaptive();
    _interpBoundary     = shader->getInterpolateBoundary();

    // Copy Maya vectors into std::vectors
    std::vector<int> numIndices(&vertexCount[0], &vertexCount[vertexCount.length()]);
    std::vector<int> faceIndices(&vertexList[0], &vertexList[vertexList.length()]);
    std::vector<int> vtxCreaseIndices(&vtxIds[0], &vtxIds[vtxIds.length()]);
    std::vector<double> vtxCreases(&vtxCreaseData[0], &vtxCreaseData[vtxCreaseData.length()]);
    std::vector<double> edgeCreases(&edgeCreaseData[0], &edgeCreaseData[edgeCreaseData.length()]);

    // Edge crease index is stored as pairs of vertex ids
    int nEdgeIds = edgeIds.length();
    std::vector<int> edgeCreaseIndices;
    edgeCreaseIndices.resize(nEdgeIds*2);
    for (int i = 0; i < nEdgeIds; ++i) {
        int2 vertices;
        status = meshFn.getEdgeVertices(edgeIds[i], vertices);
        if (status.error()) {
            status.perror("ERROR can't get creased edge vertices");
            continue;
        }
        edgeCreaseIndices[i*2] = vertices[0];
        edgeCreaseIndices[i*2+1] = vertices[1];
    }

    // Convert attribute enums to HBR enums (this is why the enums need to match)
    // XXX use some sort of built-in transmorgification avoid assumption?
    HbrMeshUtil::SchemeType hbrScheme = (HbrMeshUtil::SchemeType) _scheme;
    OsdHbrMesh::InterpolateBoundaryMethod hbrInterpBoundary = 
            (OsdHbrMesh::InterpolateBoundaryMethod) _interpBoundary;

    // Convert Maya mesh to internal HBR representation
    _hbrmesh = ConvertToHBR(meshFn.numVertices(), numIndices, faceIndices,
                            vtxCreaseIndices, vtxCreases,
                            std::vector<int>(), std::vector<float>(),
                            edgeCreaseIndices, edgeCreases,
                            hbrInterpBoundary, 
                            hbrScheme,
                            true );                     // add ptex indices to HBR

    // note: GL function can't be used in prepareForDraw API.
    _needsInitializeMesh = true;

    // Mesh topology data is up to date
    _meshTopoDirty = false;
    shader->setHbrMeshDirty(false);
}
示例#8
0
// #### rebuildHbrMeshIfNeeded
//
//      If the topology of the mesh changes, or any attributes that affect
//      how the mesh is computed the original HBR needs to be rebuilt
//      which will trigger a rebuild of the FAR mesh and subsequent buffers.
//
void
OsdMeshData::rebuildHbrMeshIfNeeded(OpenSubdivShader *shader)
{
    MStatus status = MS::kSuccess;

    if (!_meshTopoDirty && !shader->getHbrMeshDirty())
        return;

    MFnMesh meshFn(_meshDagPath);

    // Cache attribute values
    _level      = shader->getLevel();
    _kernel     = shader->getKernel();
    _adaptive   = shader->isAdaptive();
    _uvSet      = shader->getUVSet();

    // Get Maya vertex topology and crease data
    MIntArray vertexCount;
    MIntArray vertexList;
    meshFn.getVertices(vertexCount, vertexList);

    MUintArray edgeIds;
    MDoubleArray edgeCreaseData;
    meshFn.getCreaseEdges(edgeIds, edgeCreaseData);

    MUintArray vtxIds;
    MDoubleArray vtxCreaseData;
    meshFn.getCreaseVertices(vtxIds, vtxCreaseData);

    if (vertexCount.length() == 0) return;

    // Copy Maya vectors into std::vectors
    std::vector<int> numIndices(&vertexCount[0], &vertexCount[vertexCount.length()]);
    std::vector<int> faceIndices(&vertexList[0], &vertexList[vertexList.length()]);
    std::vector<int> vtxCreaseIndices(&vtxIds[0], &vtxIds[vtxIds.length()]);
    std::vector<double> vtxCreases(&vtxCreaseData[0], &vtxCreaseData[vtxCreaseData.length()]);
    std::vector<double> edgeCreases(&edgeCreaseData[0], &edgeCreaseData[edgeCreaseData.length()]);

    // Edge crease index is stored as pairs of vertex ids
    int nEdgeIds = edgeIds.length();
    std::vector<int> edgeCreaseIndices;
    edgeCreaseIndices.resize(nEdgeIds*2);
    for (int i = 0; i < nEdgeIds; ++i) {
        int2 vertices;
        status = meshFn.getEdgeVertices(edgeIds[i], vertices);
        if (status.error()) {
            MERROR(status, "OpenSubdivShader: Can't get edge vertices");
            continue;
        }
        edgeCreaseIndices[i*2] = vertices[0];
        edgeCreaseIndices[i*2+1] = vertices[1];
    }

    // Convert attribute enums to HBR enums (this is why the enums need to match)
    HbrMeshUtil::SchemeType hbrScheme = (HbrMeshUtil::SchemeType) shader->getScheme();
    OsdHbrMesh::InterpolateBoundaryMethod hbrInterpBoundary = 
            (OsdHbrMesh::InterpolateBoundaryMethod) shader->getInterpolateBoundary();
    OsdHbrMesh::InterpolateBoundaryMethod hbrInterpUVBoundary = 
            (OsdHbrMesh::InterpolateBoundaryMethod) shader->getInterpolateUVBoundary();


    // clear any existing face-varying descriptor
    if (_fvarDesc) {
        delete _fvarDesc;
        _fvarDesc = NULL;
    }

    // read UV data from maya and build per-face per-vert list of UVs for HBR face-varying data
    std::vector< float > uvList;
    status = buildUVList( meshFn, uvList );
    if (! status.error()) {
        // Create face-varying data descriptor.  The memory required for indices
        // and widths needs to stay alive as the HBR library only takes in the
        // pointers and assumes the client will maintain the memory so keep _fvarDesc
        // around as long as _hbrmesh is around.
        int fvarIndices[] = { 0, 1 };
        int fvarWidths[] = { 1, 1 };
        _fvarDesc = new FVarDataDesc( 2, fvarIndices, fvarWidths, 2, hbrInterpUVBoundary );
    }

    if (_fvarDesc && hbrScheme != HbrMeshUtil::kCatmark) {
        MGlobal::displayWarning("Face-varying not yet supported for Loop/Bilinear, using Catmull-Clark");
        hbrScheme = HbrMeshUtil::kCatmark;
    }

    // Convert Maya mesh to internal HBR representation
    _hbrmesh = ConvertToHBR(meshFn.numVertices(), numIndices, faceIndices,
                            vtxCreaseIndices, vtxCreases,
                            std::vector<int>(), std::vector<float>(),
                            edgeCreaseIndices, edgeCreases,
                            hbrInterpBoundary, 
                            hbrScheme,
                            false,                      // no ptex
                            _fvarDesc, 
                            _fvarDesc?&uvList:NULL);    // yes fvar (if have UVs)

    // note: GL function can't be used in prepareForDraw API.
    _needsInitializeMesh = true;

    // Mesh topology data is up to date
    _meshTopoDirty = false;
    shader->setHbrMeshDirty(false);
}
示例#9
0
// virtual
bool MayaMeshWriter::writeMeshAttrs(const UsdTimeCode &usdTime, UsdGeomMesh &primSchema)
{

    MStatus status = MS::kSuccess;

    // Write parent class attrs
    writeTransformAttrs(usdTime, primSchema);

    // Return if usdTime does not match if shape is animated
    if (usdTime.IsDefault() == isShapeAnimated() ) {
        // skip shape as the usdTime does not match if shape isAnimated value
        return true; 
    }

    MFnMesh lMesh( getDagPath(), &status );
    if ( !status )
    {
        MGlobal::displayError( "MFnMesh() failed for MayaMeshWriter" );
        return false;
    }
    unsigned int numVertices = lMesh.numVertices();
    unsigned int numPolygons = lMesh.numPolygons();

    // Set mesh attrs ==========
    // Get points
    // TODO: Use memcpy()
    const float* mayaRawPoints = lMesh.getRawPoints(&status);
    VtArray<GfVec3f> points(numVertices);
    for (unsigned int i = 0; i < numVertices; i++) {
        unsigned int floatIndex = i*3;
        points[i].Set(mayaRawPoints[floatIndex],
                      mayaRawPoints[floatIndex+1],
                      mayaRawPoints[floatIndex+2]);
    }
    primSchema.GetPointsAttr().Set(points, usdTime); // ANIMATED

    // Compute the extent using the raw points
    VtArray<GfVec3f> extent(2);
    UsdGeomPointBased::ComputeExtent(points, &extent);
    primSchema.CreateExtentAttr().Set(extent, usdTime);

    // Get faceVertexIndices
    unsigned int numFaceVertices = lMesh.numFaceVertices(&status);
    VtArray<int>     faceVertexCounts(numPolygons);
    VtArray<int>     faceVertexIndices(numFaceVertices);
    MIntArray mayaFaceVertexIndices; // used in loop below
    unsigned int curFaceVertexIndex = 0;
    for (unsigned int i = 0; i < numPolygons; i++) {
        lMesh.getPolygonVertices(i, mayaFaceVertexIndices);
        faceVertexCounts[i] = mayaFaceVertexIndices.length();
        for (unsigned int j=0; j < mayaFaceVertexIndices.length(); j++) {
            faceVertexIndices[ curFaceVertexIndex ] = mayaFaceVertexIndices[j]; // push_back
            curFaceVertexIndex++;
        }
    }
    primSchema.GetFaceVertexCountsAttr().Set(faceVertexCounts);   // not animatable
    primSchema.GetFaceVertexIndicesAttr().Set(faceVertexIndices); // not animatable

    // Read usdSdScheme attribute. If not set, we default to defaultMeshScheme
    // flag that can be user defined and initialized to catmullClark
    TfToken sdScheme = PxrUsdMayaMeshUtil::getSubdivScheme(lMesh, getArgs().defaultMeshScheme);    
    primSchema.CreateSubdivisionSchemeAttr(VtValue(sdScheme), true);

    // Polygonal Mesh Case
    if (sdScheme==UsdGeomTokens->none) {
        // Support for standard USD bool and with Mojito bool tag
        TfToken normalInterp=PxrUsdMayaMeshUtil::getEmitNormals(lMesh, UsdGeomTokens->none);
        
        if (normalInterp==UsdGeomTokens->faceVarying) {
            // Get References to members of meshData object
            MFloatVectorArray normalArray;
            MFloatVectorArray vertexNormalArray;
 
            lMesh.getNormals(normalArray, MSpace::kObject);

            // Iterate through each face in the mesh.
            vertexNormalArray.setLength(lMesh.numFaceVertices());
            VtArray<GfVec3f> meshNormals(lMesh.numFaceVertices());
            size_t faceVertIdx = 0;
            for (MItMeshPolygon faceIter(getDagPath()); !faceIter.isDone(); faceIter.next()) {
                // Iterate through each face-vertex.
                for (size_t locVertIdx = 0; locVertIdx < faceIter.polygonVertexCount();
                        ++locVertIdx, ++faceVertIdx) {
                    int index=faceIter.normalIndex(locVertIdx);
                    for (int j=0;j<3;j++) {
                        meshNormals[faceVertIdx][j]=normalArray[index][j];
                    }
                }
            }
            primSchema.GetNormalsAttr().Set(meshNormals, usdTime);
            primSchema.SetNormalsInterpolation(normalInterp);
        }
    } else {
        TfToken sdInterpBound = PxrUsdMayaMeshUtil::getSubdivInterpBoundary(
            lMesh, UsdGeomTokens->edgeAndCorner);

        primSchema.CreateInterpolateBoundaryAttr(VtValue(sdInterpBound), true);
        
        TfToken sdFVInterpBound = PxrUsdMayaMeshUtil::getSubdivFVInterpBoundary(
            lMesh);

        primSchema.CreateFaceVaryingLinearInterpolationAttr(
            VtValue(sdFVInterpBound), true);

        assignSubDivTagsToUSDPrim( lMesh, primSchema);
    }

    // Holes - we treat InvisibleFaces as holes
    MUintArray mayaHoles = lMesh.getInvisibleFaces();
    if (mayaHoles.length() > 0) {
        VtArray<int> subdHoles(mayaHoles.length());
        for (unsigned int i=0; i < mayaHoles.length(); i++) {
            subdHoles[i] = mayaHoles[i];
        }
        // not animatable in Maya, so we'll set default only
        primSchema.GetHoleIndicesAttr().Set(subdHoles);
    }

    // == Write UVSets as Vec2f Primvars
    MStringArray uvSetNames;
    if (getArgs().exportMeshUVs) {
        status = lMesh.getUVSetNames(uvSetNames);
    }
    for (unsigned int i=0; i < uvSetNames.length(); i++) {
        // Initialize the VtArray to the max possible size (facevarying)
        VtArray<GfVec2f> uvValues(numFaceVertices);
        TfToken interpolation=TfToken();
        // Gather UV data and interpolation into a Vec2f VtArray and try to compress if possible
        if (_GetMeshUVSetData(lMesh, uvSetNames[i], &uvValues, &interpolation) == MS::kSuccess) {
        
            // XXX:bug 118447
            // We should be able to configure the UV map name that triggers this
            // behavior, and the name to which it exports.
            // The UV Set "map1" is renamed st. This is a Pixar/USD convention
            TfToken setName(uvSetNames[i].asChar());
            if (setName == "map1") setName=UsdUtilsGetPrimaryUVSetName();
       
            // Create the primvar and set the values
            UsdGeomPrimvar uvSet = 
                primSchema.CreatePrimvar(setName, SdfValueTypeNames->Float2Array, interpolation);
            uvSet.Set( uvValues ); // not animatable
        }
    }
    
    // == Gather ColorSets
    MStringArray colorSetNames;
    if (getArgs().exportColorSets) {
        status = lMesh.getColorSetNames(colorSetNames);
    }
    // shaderColor is used in our pipeline as displayColor.
    // shaderColor is used to fill faces where the colorset is not assigned
    MColorArray shaderColors;
    MObjectArray shaderObjs;
    
    VtArray<GfVec3f> shadersRGBData;
    TfToken shadersRGBInterp;
    VtArray<float> shadersAlphaData;
    TfToken shadersAlphaInterp;

    // If exportDisplayColor is set to true or we have color sets,
    // gather color & opacity from the shader including per face
    // assignment. Color set require this to initialize unauthored/unpainted faces 
    if (getArgs().exportDisplayColor or colorSetNames.length()>0) {
        PxrUsdMayaUtil::GetLinearShaderColor(lMesh, numPolygons, 
                &shadersRGBData, &shadersRGBInterp, 
                &shadersAlphaData, &shadersAlphaInterp);
    }

    for (unsigned int i=0; i < colorSetNames.length(); i++) {

        bool isDisplayColor=false;

        if (colorSetNames[i]=="displayColor") {
            if (not getArgs().exportDisplayColor)
                continue;
            isDisplayColor=true;
        }
        
        if (colorSetNames[i]=="displayOpacity") {
            MGlobal::displayWarning("displayOpacity on mesh:" + lMesh.fullPathName() + 
            " is a reserved PrimVar name in USD. Skipping...");
            continue;
        }

        VtArray<GfVec3f> RGBData;
        TfToken RGBInterp;
        VtArray<GfVec4f> RGBAData;
        TfToken RGBAInterp;
        VtArray<float> AlphaData;
        TfToken AlphaInterp;
        MFnMesh::MColorRepresentation colorSetRep;
        bool clamped=false;

        // If displayColor uses shaderValues for non authored areas
        // and allow RGB and Alpha to have different interpolation
        // For all other colorSets the non authored values are set 
        // to (1,1,1,1) and RGB and Alpha will have the same interplation
        // since they will be emitted as a Vec4f
        if (not _GetMeshColorSetData( lMesh, colorSetNames[i],
                                        isDisplayColor,
                                        shadersRGBData, shadersAlphaData,
                                        &RGBData, &RGBInterp,
                                        &RGBAData, &RGBAInterp,
                                        &AlphaData, &AlphaInterp,
                                        &colorSetRep, &clamped)) {
            MGlobal::displayWarning("Unable to retrieve colorSet data: " +
                    colorSetNames[i] + " on mesh: "+ lMesh.fullPathName() + ". Skipping...");
            continue;
        }

        if (isDisplayColor) {
            // We tag the resulting displayColor/displayOpacity primvar as
            // authored to make sure we reconstruct the colorset on import
            // The RGB is also convererted From DisplayToLinear
            
            
            _setDisplayPrimVar( primSchema, colorSetRep,
                                RGBData, RGBInterp,
                                AlphaData, AlphaInterp,
                                clamped, true);
        } else {
            TfToken colorSetNameToken = TfToken(
                    PxrUsdMayaUtil::SanitizeColorSetName(
                        std::string(colorSetNames[i].asChar())));
            if (colorSetRep == MFnMesh::kAlpha) {
                    _createAlphaPrimVar(primSchema, colorSetNameToken,
                        AlphaData, AlphaInterp, clamped);
            } else if (colorSetRep == MFnMesh::kRGB) {
                    _createRGBPrimVar(primSchema, colorSetNameToken,
                        RGBData, RGBInterp, clamped);
            } else if (colorSetRep == MFnMesh::kRGBA) {
                    _createRGBAPrimVar(primSchema, colorSetNameToken,
                        RGBAData, RGBAInterp, clamped);
            }
        }
    }
    // Set displayColor and displayOpacity only if they are NOT authored already
    // Since this primvar will come from the shader and not a colorset,
    // we are not adding the clamp attribute as custom data
    // If a displayColor/displayOpacity is added, it's not considered authored
    // we don't need to reconstruct this as a colorset since it orgininated
    // from bound shader[s], so the authored flag is set to false
    // Given that this RGB is for display, we do DisplayToLinear conversion
    if (getArgs().exportDisplayColor) {
        _setDisplayPrimVar( primSchema, MFnMesh::kRGBA,
                                shadersRGBData, shadersRGBInterp,
                                shadersAlphaData, shadersAlphaInterp,
                                false, false);
    }
    return true;
}
示例#10
0
void MayaMeshWriter::writeSubD(
    const Alembic::AbcGeom::OV2fGeomParam::Sample & iUVs)
{
    MStatus status = MS::kSuccess;
    MFnMesh lMesh( mDagPath, &status );
    if ( !status )
    {
        MGlobal::displayError( "MFnMesh() failed for MayaMeshWriter" );
    }

    std::vector<float> points;
    std::vector<Alembic::Util::int32_t> facePoints;
    std::vector<Alembic::Util::int32_t> pointCounts;

    fillTopology(points, facePoints, pointCounts);

    Alembic::AbcGeom::OSubDSchema::Sample samp(
        Alembic::AbcGeom::V3fArraySample((const Imath::V3f *)&points.front(),
            points.size() / 3),
        Alembic::Abc::Int32ArraySample(facePoints),
        Alembic::Abc::Int32ArraySample(pointCounts));
    samp.setUVs( iUVs );

    MPlug plug = lMesh.findPlug("faceVaryingInterpolateBoundary");
    if (!plug.isNull())
        samp.setFaceVaryingInterpolateBoundary(plug.asInt());

    plug = lMesh.findPlug("interpolateBoundary");
    if (!plug.isNull())
        samp.setInterpolateBoundary(plug.asInt());

    plug = lMesh.findPlug("faceVaryingPropagateCorners");
    if (!plug.isNull())
        samp.setFaceVaryingPropagateCorners(plug.asInt());

    std::vector <Alembic::Util::int32_t> creaseIndices;
    std::vector <Alembic::Util::int32_t> creaseLengths;
    std::vector <float> creaseSharpness;

    std::vector <Alembic::Util::int32_t> cornerIndices;
    std::vector <float> cornerSharpness;

    MUintArray edgeIds;
    MDoubleArray creaseData;
    if (lMesh.getCreaseEdges(edgeIds, creaseData) == MS::kSuccess)
    {
        unsigned int numCreases = creaseData.length();
        creaseIndices.resize(numCreases * 2);
        creaseLengths.resize(numCreases, 2);
        creaseSharpness.resize(numCreases);
        for (unsigned int i = 0; i < numCreases; ++i)
        {
            int verts[2];
            lMesh.getEdgeVertices(edgeIds[i], verts);
            creaseIndices[2 * i] = verts[0];
            creaseIndices[2 * i + 1] = verts[1];
            creaseSharpness[i] = static_cast<float>(creaseData[i]);
        }

        samp.setCreaseIndices(Alembic::Abc::Int32ArraySample(creaseIndices));
        samp.setCreaseLengths(Alembic::Abc::Int32ArraySample(creaseLengths));
        samp.setCreaseSharpnesses(
            Alembic::Abc::FloatArraySample(creaseSharpness));
    }

    MUintArray cornerIds;
    MDoubleArray cornerData;
    if (lMesh.getCreaseVertices(cornerIds, cornerData) == MS::kSuccess)
    {
        unsigned int numCorners = cornerIds.length();
        cornerIndices.resize(numCorners);
        cornerSharpness.resize(numCorners);
        for (unsigned int i = 0; i < numCorners; ++i)
        {
            cornerIndices[i] = cornerIds[i];
            cornerSharpness[i] = static_cast<float>(cornerData[i]);
        }
        samp.setCornerSharpnesses(
            Alembic::Abc::FloatArraySample(cornerSharpness));

        samp.setCornerIndices(
            Alembic::Abc::Int32ArraySample(cornerIndices));
    }

#if MAYA_API_VERSION >= 201100
    MUintArray holes = lMesh.getInvisibleFaces();
    unsigned int numHoles = holes.length();
    std::vector <Alembic::Util::int32_t> holeIndices(numHoles);
    for (unsigned int i = 0; i < numHoles; ++i)
    {
        holeIndices[i] = holes[i];
    }

    if (!holeIndices.empty())
    {
        samp.setHoles(holeIndices);
    }
#endif

    mSubDSchema.set(samp);
    writeColor();
    writeUVSets();
}
void
OsdMeshData::populateIfNeeded(int lv, int scheme, int kernel)
{
    MStatus s;

    MFnMesh meshFn(_mesh, &s);
    if (s != MS::kSuccess) return;

    if (lv < 1) lv =1;

    MIntArray vertexCount, vertexList;
    meshFn.getVertices(vertexCount, vertexList);
    MUintArray edgeIds;
    MDoubleArray edgeCreaseData;
    meshFn.getCreaseEdges(edgeIds, edgeCreaseData);
    MUintArray vtxIds;
    MDoubleArray vtxCreaseData;
    meshFn.getCreaseVertices(vtxIds, vtxCreaseData );

    if (vertexCount.length() == 0) return;

    short interpBoundary = 0;
    FindAttribute(meshFn, "boundaryRule", &interpBoundary);

    if(CompareArray(_vertexList, vertexList) &&
       CompareArray(_edgeIds, edgeIds) &&
       CompareArray(_edgeCreaseData, edgeCreaseData) &&
       CompareArray(_vtxIds, vtxIds) &&
       CompareArray(_vtxCreaseData, vtxCreaseData) &&
       _interpBoundary == interpBoundary &&
       _scheme == scheme &&
       _kernel == kernel &&
       _maxlevel >= lv)
    {
        if(_level != lv) {
            _level = lv;
            _needsInitializeIndexBuffer = true;
        }
        return;
    }

    // printf("Populate %s, level = %d < %d\n", meshFn.name().asChar(), lv, _level);

    // update topology
    _vertexList = vertexList;
    _edgeIds = edgeIds;
    _edgeCreaseData = edgeCreaseData;
    _vtxIds = vtxIds;
    _vtxCreaseData = vtxCreaseData;
    _maxlevel = lv;
    _level = lv;
    _interpBoundary = interpBoundary;
    _scheme = scheme;
    _kernel = kernel;

    std::vector<int> numIndices, faceIndices, edgeCreaseIndices, vtxCreaseIndices;
    std::vector<float> edgeCreases, vtxCreases;
    numIndices.resize(vertexCount.length());
    faceIndices.resize(vertexList.length());
    for(int i = 0; i < (int)vertexCount.length(); ++i) numIndices[i] = vertexCount[i];
    for(int i = 0; i < (int)vertexList.length(); ++i) faceIndices[i] = vertexList[i];
    vtxCreaseIndices.resize(vtxIds.length());
    for(int i = 0; i < (int)vtxIds.length(); ++i) vtxCreaseIndices[i] = vtxIds[i];
    vtxCreases.resize(vtxCreaseData.length());
    for(int i = 0; i < (int)vtxCreaseData.length(); ++i)
        vtxCreases[i] = (float)vtxCreaseData[i];
    edgeCreases.resize(edgeCreaseData.length());
    for(int i = 0; i < (int)edgeCreaseData.length(); ++i)
        edgeCreases[i] = (float)edgeCreaseData[i];

    // edge crease index is stored as pair of <face id> <edge localid> ...
    int nEdgeIds = edgeIds.length();
    edgeCreaseIndices.resize(nEdgeIds*2);
    for(int i = 0; i < nEdgeIds; ++i){
        int2 vertices;
        if (meshFn.getEdgeVertices(edgeIds[i], vertices) != MS::kSuccess) {
            s.perror("ERROR can't get creased edge vertices");
            continue;
        }
        edgeCreaseIndices[i*2] = vertices[0];
        edgeCreaseIndices[i*2+1] = vertices[1];
    }

    _hbrmesh = ConvertToHBR(meshFn.numVertices(), numIndices, faceIndices,
                            vtxCreaseIndices, vtxCreases,
                            std::vector<int>(), std::vector<float>(),
                            edgeCreaseIndices, edgeCreases,
                            interpBoundary, scheme);

    // GL function can't be used in prepareForDraw API.
    _needsInitializeOsd = true;
}
void
SubdivUserData::Populate(MObject mesh)
{
    MStatus s;
    MFnMesh meshFn(mesh);
    MIntArray vertexCount, vertexList;
    meshFn.getVertices(vertexCount, vertexList);
    MUintArray edgeIds;
    MDoubleArray edgeCreaseData;
    meshFn.getCreaseEdges(edgeIds, edgeCreaseData);
    MUintArray vtxIds;
    MDoubleArray vtxCreaseData;
    meshFn.getCreaseVertices(vtxIds, vtxCreaseData );

    short level = 1;
    FindAttribute(meshFn, "smoothLevel", &level);
    if(level < 1) level = 1;

    short interpBoundary = 0;
    FindAttribute(meshFn, "boundaryRule", &interpBoundary);

    if(CompareArray(_vertexList, vertexList) &&
       CompareArray(_edgeIds, edgeIds) &&
       CompareArray(_edgeCreaseData, edgeCreaseData) &&
       CompareArray(_vtxIds, vtxIds) &&
       CompareArray(_vtxCreaseData, vtxCreaseData) &&
        _level == level &&
       _interpBoundary == interpBoundary)
    {
        return;
    }

    // update topology
    _vertexList = vertexList;
    _edgeIds = edgeIds;
    _edgeCreaseData = edgeCreaseData;
    _vtxIds = vtxIds;
    _vtxCreaseData = vtxCreaseData;
    _level = level;
    _interpBoundary = interpBoundary;

    if(_loop){
        MIntArray triangleCounts;
        meshFn.getTriangles(triangleCounts, vertexList);
        int numTriangles = vertexList.length()/3;
        vertexCount.clear();
        for(int i = 0; i < numTriangles; ++i){
            vertexCount.append(3);
        }
    }

    // XXX redundant copy... replace _vertexList with numIndices, etc

    // create Osd mesh
    std::vector<int> numIndices, faceIndices, edgeCreaseIndices, vtxCreaseIndices;
    std::vector<float> edgeCreases, vtxCreases;
    numIndices.resize(vertexCount.length());
    faceIndices.resize(vertexList.length());
    for(int i = 0; i < (int)vertexCount.length(); ++i) numIndices[i] = vertexCount[i];
    for(int i = 0; i < (int)vertexList.length(); ++i) faceIndices[i] = vertexList[i];
    vtxCreaseIndices.resize(vtxIds.length());
    for(int i = 0; i < (int)vtxIds.length(); ++i) vtxCreaseIndices[i] = vtxIds[i];
    vtxCreases.resize(vtxCreaseData.length());
    for(int i = 0; i < (int)vtxCreaseData.length(); ++i) vtxCreases[i] = (float)vtxCreaseData[i];
    edgeCreases.resize(edgeCreaseData.length());
    for(int i = 0; i < (int)edgeCreaseData.length(); ++i) edgeCreases[i] = (float)edgeCreaseData[i];

    // edge crease index is stored as pair of <face id> <edge localid> ...
    int nEdgeIds = edgeIds.length();
    edgeCreaseIndices.resize(nEdgeIds*2);
    for(int i = 0; i < nEdgeIds; ++i){
        int2 vertices;
        if (meshFn.getEdgeVertices(edgeIds[i], vertices) != MS::kSuccess) {
            s.perror("ERROR can't get creased edge vertices");
            continue;
        }
        edgeCreaseIndices[i*2] = vertices[0];
        edgeCreaseIndices[i*2+1] = vertices[1];
    }

    OpenSubdiv::OsdHbrMesh *hbrMesh = ConvertToHBR(meshFn.numVertices(), numIndices, faceIndices,
                                                   vtxCreaseIndices, vtxCreases,
                                                   std::vector<int>(), std::vector<float>(),
                                                   edgeCreaseIndices, edgeCreases,
                                                   interpBoundary, _loop);

    int kernel = OpenSubdiv::OsdKernelDispatcher::kCPU;
    if (OpenSubdiv::OsdKernelDispatcher::HasKernelType(OpenSubdiv::OsdKernelDispatcher::kOPENMP)) {
        kernel = OpenSubdiv::OsdKernelDispatcher::kOPENMP;
    }
    _osdmesh->Create(hbrMesh, level, kernel);
    delete hbrMesh;

    // create vertex buffer
    if (_vertexBuffer) {
        delete _vertexBuffer;
    }
    _vertexBuffer = _osdmesh->InitializeVertexBuffer(6 /* position + normal */);

    // create element array buffer
    if (_elementArrayBuffer) delete _elementArrayBuffer;
    _elementArrayBuffer = _osdmesh->CreateElementArrayBuffer(level);

    _cachedTotal = -1;
    UpdatePoints(mesh);
}