Add the ability to create internal springs to the cloth sim

This can be used to make closed surfaces behave more like a soft body.

Reviewed By: Jacques Lucke

Differential Revision: http://developer.blender.org/D5788

1 files changed, 14 insertions, 0 deletions

diff --git a/source/blender/blenloader/intern/versioning_280.c b/source/blender/blenloader/intern/versioning_280.c
index 6c8b14ad5c7..5c7fda67ff0 100644
--- a/source/blender/blenloader/intern/versioning_280.c
+++ b/source/blender/blenloader/intern/versioning_280.c
@@ -4268,5 +4268,19 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
 
   {
     /* Versioning code until next subversion bump goes here. */
+    /* Cloth internal springs */
+    for (Object *ob = bmain->objects.first; ob; ob = ob->id.next) {
+      for (ModifierData *md = ob->modifiers.first; md; md = md->next) {
+        if (md->type == eModifierType_Cloth) {
+          ClothModifierData *clmd = (ClothModifierData *)md;
+
+          clmd->sim_parms->internal_tension = 15.0f;
+          clmd->sim_parms->max_internal_tension = 15.0f;
+          clmd->sim_parms->internal_compression = 15.0f;
+          clmd->sim_parms->max_internal_compression = 15.0f;
+          clmd->sim_parms->internal_spring_max_diversion = M_PI / 4.0f;
+        }
+      }
+    }
   }
 }