Realtime Compositor: Add evaluator and engine

This patch adds the core realtime compositor evaluator as well as a
compositor draw engine powered by the evaluator that operates in the
viewport. The realtime compositor is a new GPU accelerated compositor
that will be used to power the viewport compositor imminently as well as
the existing compositor in the future.

This patch only adds the evaluator and engine as an experimental
feature, the implementation of the nodes themselves will be committed
separately.

See T99210.

Differential Revision: https://developer.blender.org/D15206

Reviewed By: Clement Foucault

1 files changed, 2 insertions, 0 deletions

diff --git a/source/blender/makesdna/DNA_userdef_types.h b/source/blender/makesdna/DNA_userdef_types.h
index 74fb1c3ac96..ac553c2655f 100644
--- a/source/blender/makesdna/DNA_userdef_types.h
+++ b/source/blender/makesdna/DNA_userdef_types.h
@@ -653,6 +653,8 @@ typedef struct UserDef_Experimental {
   char enable_eevee_next;
   char use_sculpt_texture_paint;
   char use_draw_manager_acquire_lock;
+  char use_realtime_compositor;
+  char _pad[7];
   /** `makesdna` does not allow empty structs. */
 } UserDef_Experimental;