diff options
Diffstat (limited to 'source/blender/blenkernel/intern/object_dupli.c')
| -rw-r--r-- | source/blender/blenkernel/intern/object_dupli.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/source/blender/blenkernel/intern/object_dupli.c b/source/blender/blenkernel/intern/object_dupli.c index e3b801b3193..eb7abc2f004 100644 --- a/source/blender/blenkernel/intern/object_dupli.c +++ b/source/blender/blenkernel/intern/object_dupli.c @@ -64,6 +64,7 @@ #include "BLI_strict_flags.h" +#include "BLI_hash.h" /* Dupli-Geometry */ @@ -180,6 +181,22 @@ static DupliObject *make_dupli(const DupliContext *ctx, if (ob->type == OB_MBALL) dob->no_draw = true; + /* random number */ + /* the logic here is designed to match Cycles */ + dob->random_id = BLI_hash_string(dob->ob->id.name + 2); + + if (dob->persistent_id[0] != INT_MAX) { + for(i = 0; i < MAX_DUPLI_RECUR*2; i++) + dob->random_id = BLI_hash_int_2d(dob->random_id, (unsigned int)dob->persistent_id[i]); + } + else { + dob->random_id = BLI_hash_int_2d(dob->random_id, 0); + } + + if (ctx->object != ob) { + dob->random_id ^= BLI_hash_int(BLI_hash_string(ctx->object->id.name + 2)); + } + return dob; } |