Split Normals I (1/5): basis for split normals (nearly nothing user-visible here):

* Add a new calcLoopNormals function to DerivedMesh struct, and implement it for CDDM and CCGDM (subsurf).
  EditDerivedBMesh (edit mode DM) only gets a dummy one in this commit.
* Add a tessellated version of CD_LOOPNORMAL layer (CD_TESSLOOPNORMAL), with relevant code to handle it
  (tessellation, rna access, etc.).
* Change auto_smooth options of Mesh (angle now in radian internaly, and toggle is now used to enable/disable
  split normals in DM creation process). Note BI render code is not touched here, hence its behavior regarding
  this option is now incoherent, will be addressed in a separate commit.

Reviewers: campbellbarton

CC: brecht

Differential Revision: https://developer.blender.org/D365

1 files changed, 7 insertions, 0 deletions

diff --git a/source/blender/blenloader/intern/versioning_defaults.c b/source/blender/blenloader/intern/versioning_defaults.c
index b14402e72db..d6caf16f7aa 100644
--- a/source/blender/blenloader/intern/versioning_defaults.c
+++ b/source/blender/blenloader/intern/versioning_defaults.c
@@ -26,6 +26,7 @@
  */
 
 #include "BLI_utildefines.h"
+#include "BLI_math.h"
 
 #include "DNA_freestyle_types.h"
 #include "DNA_linestyle_types.h"
@@ -33,6 +34,7 @@
 #include "DNA_screen_types.h"
 #include "DNA_space_types.h"
 #include "DNA_userdef_types.h"
+#include "DNA_mesh_types.h"
 
 #include "BKE_main.h"
 
@@ -45,6 +47,7 @@ void BLO_update_defaults_startup_blend(Main *main)
 	Scene *scene;
 	SceneRenderLayer *srl;
 	FreestyleLineStyle *linestyle;
+	Mesh *me;
 
 	for (scene = main->scene.first; scene; scene = scene->id.next) {
 		scene->r.im_format.planes = R_IMF_PLANES_RGBA;
@@ -75,5 +78,9 @@ void BLO_update_defaults_startup_blend(Main *main)
 			}
 		}
 	}
+
+	for (me = main->mesh.first; me; me = me->id.next) {
+		me->smoothresh = DEG2RADF(180.0f);
+	}
 }