diff options
| -rw-r--r-- | source/blender/blenkernel/intern/pointcache.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/source/blender/blenkernel/intern/pointcache.c b/source/blender/blenkernel/intern/pointcache.c index 14e049384ef..8ee8821eeb6 100644 --- a/source/blender/blenkernel/intern/pointcache.c +++ b/source/blender/blenkernel/intern/pointcache.c @@ -1006,7 +1006,8 @@ void BKE_ptcache_id_from_cloth(PTCacheID *pid, Object *ob, ClothModifierData *cl } /* The fluid modifier does not actually use this anymore, but some parts of Blender expect that it - * still has a point cache currently. */ + * still has a point cache currently. For example, the fluid modifier uses + * #DEG_add_collision_relations, which internally creates relations with the point cache. */ void BKE_ptcache_id_from_smoke(PTCacheID *pid, struct Object *ob, struct FluidModifierData *fmd) { FluidDomainSettings *fds = fmd->domain; @@ -2549,6 +2550,12 @@ static int ptcache_write_needed(PTCacheID *pid, int cfra, int *overwrite) int BKE_ptcache_write(PTCacheID *pid, unsigned int cfra) { PointCache *cache = pid->cache; + if (!pid->totpoint) { + /* This happens when `pid->type == PTCACHE_TYPE_SMOKE_DOMAIN`. The fluid system does not + * actually use the pointcache anymore for caching. */ + return 0; + } + int totpoint = pid->totpoint(pid->calldata, cfra); int overwrite = 0, error = 0; |