Fix #20965: metaballs partticles and volume material crash rendering

Fix #21187: 2.5svn26947 - particles + meta sphere = crash in rendering

Use separated displists for mballs in view3d and render stuff.
Do not recalculate displist for view3d while rendering - mball.c
uses several global variables which shouldn't be accepted from
parallel threads.

1 files changed, 2 insertions, 2 deletions

diff --git a/source/blender/blenkernel/BKE_mball.h b/source/blender/blenkernel/BKE_mball.h
index 130969d4892..5d41f4e374e 100644
--- a/source/blender/blenkernel/BKE_mball.h
+++ b/source/blender/blenkernel/BKE_mball.h
@@ -164,12 +164,12 @@ struct MetaBall *add_mball(char *name);
 struct MetaBall *copy_mball(struct MetaBall *mb);
 void make_local_mball(struct MetaBall *mb);
 void tex_space_mball(struct Object *ob);
-float *make_orco_mball(struct Object *ob);
+float *make_orco_mball(struct Object *ob, struct ListBase *dispbase);
 void copy_mball_properties(struct Scene *scene, struct Object *active_object);
 struct Object *find_basis_mball(struct Scene *scene, struct Object *ob);
 int is_basis_mball(struct Object *ob);
 int is_mball_basis_for(struct Object *ob1, struct Object *ob2);
-void metaball_polygonize(struct Scene *scene, struct Object *ob);
+void metaball_polygonize(struct Scene *scene, struct Object *ob, struct ListBase *dispbase);
 void calc_mballco(struct MetaElem *ml, float *vec);
 float densfunc(struct MetaElem *ball, float x, float y, float z);
 float metaball(float x, float y, float z);