diff options
Diffstat (limited to 'source/blender/modifiers/intern/MOD_meshsequencecache.c')
| -rw-r--r-- | source/blender/modifiers/intern/MOD_meshsequencecache.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/source/blender/modifiers/intern/MOD_meshsequencecache.c b/source/blender/modifiers/intern/MOD_meshsequencecache.c index 760830ffb24..0f57b759e38 100644 --- a/source/blender/modifiers/intern/MOD_meshsequencecache.c +++ b/source/blender/modifiers/intern/MOD_meshsequencecache.c @@ -114,10 +114,20 @@ static Mesh *applyModifier(ModifierData *md, const ModifierEvalContext *ctx, Mes } } + /* If this invocation is for the ORCO mesh, and the mesh in Alembic hasn't changed topology, we + * must return the mesh as-is instead of deforming it. */ + if (ctx->flag & MOD_APPLY_ORCO && + !ABC_mesh_topology_changed(mcmd->reader, ctx->object, mesh, time, &err_str)) { + return mesh; + } + if (me != NULL) { MVert *mvert = mesh->mvert; MEdge *medge = mesh->medge; MPoly *mpoly = mesh->mpoly; + + /* TODO(sybren+bastien): possibly check relevant custom data layers (UV/color depending on + * flags) and duplicate those too. */ if ((me->mvert == mvert) || (me->medge == medge) || (me->mpoly == mpoly)) { /* We need to duplicate data here, otherwise we'll modify org mesh, see T51701. */ BKE_id_copy_ex(NULL, |