This is a MINOR release. It fixes a few small bugs. It also adds a small set of features to various libraries. You can use a tool such as DiffMerge to see the code changes (in the entire directory tree) from v1.0 to v1.1. You can apply changes to your existing v1.0 code using the following patch (make a backup copy first!) :
patch -p0 < VegaFEM-v1.1.patch
Changes in version 1.1: ======================== integrator: improved comments in ImplicitNewmarkSparse and ImplicitBackwardEulerSparse integrator: both ImplicitNewmarkSparse and ImplicitBackwardEulerSparse now use a zero initial guess for each iteration (only relevant with PCG; before: ImplicitNewmarkSparse used previous timestep solution) isotropicHyperelasticFEM: improved the text description (in the comment) of the Mooney-Rivlin material model massSpringSystem: renamed ObjConfig => ObjMeshConfig massSpringSystem: added MassSpringSystemobjMesh::getRestPositions objMesh: added ObjMesh::setSingleMaterial objMesh: added ObjMesh::getTriangle objMesh: fixed the "iFace" bug with custom colors in ObjMeshRender objMesh: changed delete to free in ObjMeshRender objMesh: renamed findClosestVertex => getClosestVertex objMesh: snychronized interface in ObjMeshRender with ObjMesh sceneObject: renamed FindClosestVertex => GetClosestVertex sceneObject: added SceneObject::GetNumFaces sparseMatrix: improved headers in sparseMatrix.h: MultiplyMatrix* sparseMatrix: added SparseMatrix::AppendRowsColumns sparseMatrix: added SparseMatrix::MakeDenseMatrixTranspose sparseMatrix: fixed a rare bug in SparseMatrix::RemoveColumns sparseMatrix: changed the return type of Transpose to "SparseMatrix *" sparseSolver: added the ability to pass a diagonal preconditioner to the "black-box" mat-vec multiplication constructor in CGSolver sparseSolver: added PardisoSolver::SolveLinearSystemMultipleRHS volumetricMesh: added VolumetricMesh::getDefaultMaterial(double * E, double * nu, double * density) volumetricMesh: fixed a bug in the alternative constructor, VolumetricMesh::VolumetricMesh(int numVertices_, double * vertices_, int numElements_, int numElementVertices_, int * elements_, double E, double nu, double density): numElementVertices(numElementVertices_); volumetricMesh: added VolumetricMesh::getVolume and VolumetricMesh::getVertexVolumes volumetricMesh: added optional last parameter to VolumetricMesh::setToSubsetMesh volumetricMesh: added VolumetricMesh::computeGradient and VolumetricMesh::interpolateGradient volumetricMesh: added material information to the output mesh of GenerateSurfaceMesh::ComputeMesh volumetricMesh: added CubicMesh::subdivide volumetricMesh: changed "wa" to "w" and "ra" to "r" in fopen generateInterpolant: minor change (an extra printf) interactiveDeformableSimulator: minor changes to accommodate the above library changes cleaned up license headers (minor, stylistic change, no change in actual license) files converted to unix-style end-of-line characters small improvements to Makefile-header.linux