Depsgraph hack feature - experimental

Many depsgraph failures are because some data in the graph is being
recalculated too early (or not at all).

Since we better support animators with working renders, here's a hack to
allow manual additional updates on frame changes.

In Property Editor, Object, Panel "Relations Extra" you now have two
buttons:
- Extra Object Update
- Extra Data Update

This will do an extra update of object and/or its data ONLY on frame changes.
Update happens as last.

Tested on files collected in Wiki todo, several cases now work OK, especially
the lags on updates.

1 files changed, 9 insertions, 0 deletions

diff --git a/source/blender/makesrna/intern/rna_object.c b/source/blender/makesrna/intern/rna_object.c
index 80d74c3a9fe..a617c78019f 100644
--- a/source/blender/makesrna/intern/rna_object.c
+++ b/source/blender/makesrna/intern/rna_object.c
@@ -2469,6 +2469,15 @@ static void rna_def_object(BlenderRNA *brna)
 	RNA_def_property_ui_text(prop, "Slow Parent Offset", "Delay in the parent relationship");
 	RNA_def_property_update(prop, NC_OBJECT | ND_TRANSFORM, "rna_Object_internal_update");
 	
+	/* depsgraph hack */
+	prop = RNA_def_property(srna, "extra_recalc_object", PROP_BOOLEAN, PROP_NONE);
+	RNA_def_property_boolean_sdna(prop, NULL, "depsflag", OB_DEPS_EXTRA_OB_RECALC);
+	RNA_def_property_ui_text(prop, "Extra Object Update", "Refresh this object again on frame changes, dependency graph hack");
+	
+	prop = RNA_def_property(srna, "extra_recalc_data", PROP_BOOLEAN, PROP_NONE);
+	RNA_def_property_boolean_sdna(prop, NULL, "depsflag", OB_DEPS_EXTRA_DATA_RECALC);
+	RNA_def_property_ui_text(prop, "Extra Data Update", "Refresh this object's data again on frame changes, dependency graph hack");
+	
 	/* duplicates */
 	prop = RNA_def_property(srna, "dupli_type", PROP_ENUM, PROP_NONE);
 	RNA_def_property_enum_bitflag_sdna(prop, NULL, "transflag");