Depsgraph: Begin work on making depsgraph per-scene-layer

This is a first step towards proper depsgraph "ownership", where
we would allow scene to be in multiple states dependent on active
workspace or scene layer.

This commit introduces a basic API to get proper dependency graph
for a given scene layer. It also renames scene->depsgraph to
depsgraph_legacy, so it's easier to search0-n-replace in the future.

1 files changed, 4 insertions, 1 deletions

diff --git a/source/blender/render/intern/source/pipeline.c b/source/blender/render/intern/source/pipeline.c
index f7b0bbd8324..4581e0bdea0 100644
--- a/source/blender/render/intern/source/pipeline.c
+++ b/source/blender/render/intern/source/pipeline.c
@@ -64,6 +64,7 @@
 #include "BKE_colortools.h"
 #include "BKE_global.h"
 #include "BKE_image.h"
+#include "BKE_layer.h"
 #include "BKE_library.h"
 #include "BKE_library_remap.h"
 #include "BKE_main.h"
@@ -3795,6 +3796,8 @@ void RE_BlenderAnim(Render *re, Main *bmain, Scene *scene, Object *camera_overri
 void RE_PreviewRender(Render *re, Main *bmain, Scene *sce)
 {
 	Object *camera;
+	/* TODO(sergey): Get proper scene layer here. */
+	SceneLayer *scene_layer = BKE_scene_layer_context_active_ex(bmain, sce);
 	int winx, winy;
 
 	winx = (sce->r.size * sce->r.xsch) / 100;
@@ -3808,7 +3811,7 @@ void RE_PreviewRender(Render *re, Main *bmain, Scene *sce)
 	re->scene = sce;
 	re->scene_color_manage = BKE_scene_check_color_management_enabled(sce);
 	re->lay = sce->lay;
-	re->depsgraph = sce->depsgraph;
+	re->depsgraph = BKE_scene_get_depsgraph(sce, scene_layer);
 
 	camera = RE_GetCamera(re);
 	RE_SetCamera(re, camera);