Mesh: Avoid unnecessary normal calculation and dirty tags

This is mostly a cleanup to avoid hardcoding the eager calculation of
normals it isn't necessary, by reducing calls to `BKE_mesh_calc_normals`
and by removing calls to `BKE_mesh_normals_tag_dirty` when the mesh
is newly created and already has dirty normals anyway. This reduces
boilerplate code and makes the "dirty by default" state more clear.
Any regressions from this commit should be easy to fix, though the
lazy calculation is solid enough that none are expected.

1 files changed, 0 insertions, 1 deletions

diff --git a/source/blender/makesrna/intern/rna_mesh_api.c b/source/blender/makesrna/intern/rna_mesh_api.c
index b1ebe583afc..8447074a3ef 100644
--- a/source/blender/makesrna/intern/rna_mesh_api.c
+++ b/source/blender/makesrna/intern/rna_mesh_api.c
@@ -159,7 +159,6 @@ static void rna_Mesh_normals_split_custom_set_from_vertices(Mesh *mesh,
 static void rna_Mesh_transform(Mesh *mesh, float mat[16], bool shape_keys)
 {
   BKE_mesh_transform(mesh, (float(*)[4])mat, shape_keys);
-  BKE_mesh_normals_tag_dirty(mesh);
 
   DEG_id_tag_update(&mesh->id, 0);
 }