Fix #32667: Curve softbodies doesn't render animation (cycles)

Issue was caused by cycles being duplicated curve objects before converting
them to mesh. This duplication will loose pointcache which resulted in object
not being properly deformed.

1 files changed, 35 insertions, 8 deletions

diff --git a/source/blender/blenkernel/intern/pointcache.c b/source/blender/blenkernel/intern/pointcache.c
index 780528f4a0d..0d01bb33fc5 100644
--- a/source/blender/blenkernel/intern/pointcache.c
+++ b/source/blender/blenkernel/intern/pointcache.c
@@ -2663,32 +2663,59 @@ void BKE_ptcache_free_list(ListBase *ptcaches)
 	}
 }
 
-static PointCache *ptcache_copy(PointCache *cache)
+static PointCache *ptcache_copy(PointCache *cache, int copy_data)
 {
 	PointCache *ncache;
 
 	ncache= MEM_dupallocN(cache);
 
-	/* hmm, should these be copied over instead? */
 	ncache->mem_cache.first = NULL;
 	ncache->mem_cache.last = NULL;
-	ncache->cached_frames = NULL;
-	ncache->edit = NULL;
 
-	ncache->flag= 0;
-	ncache->simframe= 0;
+	if (copy_data == FALSE) {
+		ncache->mem_cache.first = NULL;
+		ncache->mem_cache.last = NULL;
+		ncache->cached_frames = NULL;
+
+		ncache->flag= 0;
+		ncache->simframe= 0;
+	}
+	else {
+		PTCacheMem *pm;
+
+		for (pm = cache->mem_cache.first; pm; pm = pm->next) {
+			PTCacheMem *pmn = MEM_dupallocN(pm);
+			int i;
+
+			for (i = 0; i < BPHYS_TOT_DATA; i++) {
+				if (pmn->data[i])
+					pmn->data[i] = MEM_dupallocN(pm->data[i]);
+			}
+
+			BKE_ptcache_mem_pointers_init(pm);
+
+			BLI_addtail(&ncache->mem_cache, pmn);
+		}
+
+		if (ncache->cached_frames)
+			ncache->cached_frames = MEM_dupallocN(cache->cached_frames);
+	}
+
+	/* hmm, should these be copied over instead? */
+	ncache->edit = NULL;
 
 	return ncache;
 }
+
 /* returns first point cache */
-PointCache *BKE_ptcache_copy_list(ListBase *ptcaches_new, ListBase *ptcaches_old)
+PointCache *BKE_ptcache_copy_list(ListBase *ptcaches_new, ListBase *ptcaches_old, int copy_data)
 {
 	PointCache *cache = ptcaches_old->first;
 
 	ptcaches_new->first = ptcaches_new->last = NULL;
 
 	for (; cache; cache=cache->next)
-		BLI_addtail(ptcaches_new, ptcache_copy(cache));
+		BLI_addtail(ptcaches_new, ptcache_copy(cache, copy_data));
 
 	return ptcaches_new->first;
 }