Added new data in the cloth modifier for hair root information.

This will allow us to implement moving reference frames for hair and
make "fictitious" forces optional, aiding in creating stable and
controllable hair systems.

Adding data in this place is a nasty hack, but it's too difficult to
encode as a DM data layer and the whole cloth modifier/DM intermediate
data copying for hair should be removed anyway.

1 files changed, 4 insertions, 0 deletions

diff --git a/source/blender/modifiers/intern/MOD_cloth.c b/source/blender/modifiers/intern/MOD_cloth.c
index 15a73c0a34d..5c5e38f3444 100644
--- a/source/blender/modifiers/intern/MOD_cloth.c
+++ b/source/blender/modifiers/intern/MOD_cloth.c
@@ -178,6 +178,7 @@ static void copyData(ModifierData *md, ModifierData *target)
 	tclmd->point_cache = BKE_ptcache_add(&tclmd->ptcaches);
 	tclmd->point_cache->step = 1;
 	tclmd->clothObject = NULL;
+	tclmd->roots = NULL;
 	tclmd->debug_data = NULL;
 }
 
@@ -207,6 +208,9 @@ static void freeData(ModifierData *md)
 		BKE_ptcache_free_list(&clmd->ptcaches);
 		clmd->point_cache = NULL;
 		
+		if (clmd->roots)
+			MEM_freeN(clmd->roots);
+		
 		BKE_sim_debug_data_free(clmd->debug_data);
 	}
 }