}
}
else {
- if (lmd->total_verts > 0 && lmd->total_verts == numVerts) {
- if (isValidVertexGroup(lmd, ob, dm)) {
- filevertexCos = MEM_mallocN(sizeof(float[3]) * numVerts, "TempDeformCoordinates");
- memcpy(filevertexCos, lmd->vertexco, sizeof(float[3]) * numVerts);
- MEM_SAFE_FREE(lmd->vertexco);
- lmd->total_verts = 0;
- initSystem(lmd, ob, dm, filevertexCos, numVerts);
- sys = lmd->cache_system;
- MEM_SAFE_FREE(filevertexCos);
- laplacianDeformPreview(sys, vertexCos);
- }
+ if (!isValidVertexGroup(lmd, ob, dm)) {
+ modifier_setError(&lmd->modifier, "Vertex group '%s' is not valid", lmd->anchor_grp_name);
+ lmd->flag &= ~MOD_LAPLACIANDEFORM_BIND;
+ }
+ else if (lmd->total_verts > 0 && lmd->total_verts == numVerts) {
+ filevertexCos = MEM_mallocN(sizeof(float[3]) * numVerts, "TempDeformCoordinates");
+ memcpy(filevertexCos, lmd->vertexco, sizeof(float[3]) * numVerts);
+ MEM_SAFE_FREE(lmd->vertexco);
+ lmd->total_verts = 0;
+ initSystem(lmd, ob, dm, filevertexCos, numVerts);
+ sys = lmd->cache_system;
+ MEM_SAFE_FREE(filevertexCos);
+ laplacianDeformPreview(sys, vertexCos);
}
else {
- if (isValidVertexGroup(lmd, ob, dm)) {
- initSystem(lmd, ob, dm, vertexCos, numVerts);
- sys = lmd->cache_system;
- laplacianDeformPreview(sys, vertexCos);
- }
+ initSystem(lmd, ob, dm, vertexCos, numVerts);
+ sys = lmd->cache_system;
+ laplacianDeformPreview(sys, vertexCos);
}
}
- if (sys->is_matrix_computed && !sys->has_solution) {
+ if (sys && sys->is_matrix_computed && !sys->has_solution) {
modifier_setError(&lmd->modifier, "The system did not find a solution");
}
}