Depsgraph: Use dedicated function for group evaluation

It is still based on generic collection evaluation, but the idea is to avoid
having view_layer pointer passed from group to it's evaluation function.

This is essential for copy-on-write, where we need to pass view_layer pointer
from a copied datablock, but that copy is not yet available at construction
time. Also, this is NOT the case where we want to expand datablock at a
construction time, just to keep our life easier.

1 files changed, 7 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_group.h b/source/blender/blenkernel/BKE_group.h
index ac436876dc4..b522ad65fe7 100644
--- a/source/blender/blenkernel/BKE_group.h
+++ b/source/blender/blenkernel/BKE_group.h
@@ -55,6 +55,13 @@ bool          BKE_group_is_animated(struct Group *group, struct Object *parent);
 
 void          BKE_group_handle_recalc_and_update(const struct EvaluationContext *eval_ctx, struct Scene *scene, struct Object *parent, struct Group *group);
 
+/* Dependency graph evaluation. */
+
+void BKE_group_eval_view_layers(const struct EvaluationContext *eval_ctx,
+                                struct Group *group);
+
+/* Helper macros. */
+
 #define FOREACH_GROUP_BASE(_group, _base)                         \
 	for (Base *_base = (Base *)(_group)->view_layer->object_bases.first; \
 	     _base;                                                   \