[Bf-blender-cvs] [4c1a01d1a07] blender2.8: fix: Collada Exporter: improve usage of viewlayer and depsgraph

[Gaia Clary]

Commit: 4c1a01d1a07138aa9b80ab34cc3bde1df5ec141e
Author: Gaia Clary
Date:   Tue Nov 27 12:14:03 2018 +0100
Branches: blender2.8
https://developer.blender.org/rB4c1a01d1a07138aa9b80ab34cc3bde1df5ec141e

fix: Collada Exporter: improve usage of viewlayer and depsgraph

* The exporter now gets the view layer from the context
  instead of the depsgraph.
* The depsgrap is now fetched only on demand since the graph
  is not always needed for exporting (currently only for armature exports).

===================================================================

M	source/blender/collada/BlenderContext.cpp

===================================================================

diff --git a/source/blender/collada/BlenderContext.cpp b/source/blender/collada/BlenderContext.cpp
index 536d517bd6e..fcfd9241649 100644
--- a/source/blender/collada/BlenderContext.cpp
+++ b/source/blender/collada/BlenderContext.cpp
@@ -25,14 +25,15 @@
   */
 
 #include "BlenderContext.h"
+#include "BKE_scene.h"
 
 BlenderContext::BlenderContext(bContext *C)
 {
 	context = C;
 	main = CTX_data_main(C);
-	depsgraph = CTX_data_depsgraph(C);
 	scene = CTX_data_scene(C);
-	view_layer = DEG_get_evaluated_view_layer(depsgraph);
+	view_layer = CTX_data_view_layer(C);
+	depsgraph = nullptr; // create only when needed
 }
 
 bContext *BlenderContext::get_context()
@@ -42,6 +43,9 @@ bContext *BlenderContext::get_context()
 
 Depsgraph *BlenderContext::get_depsgraph()
 {
+	if (!depsgraph) {
+		depsgraph = BKE_scene_get_depsgraph(scene, view_layer, true);
+	}
 	return depsgraph;
 }