Implement Start Resolution for preview render in BI

So now viewport render resolution division works exactly the same as in Cycles.

1 files changed, 7 insertions, 0 deletions

diff --git a/source/blender/blenloader/intern/versioning_270.c b/source/blender/blenloader/intern/versioning_270.c
index 50e7c83447b..103f9b76ba7 100644
--- a/source/blender/blenloader/intern/versioning_270.c
+++ b/source/blender/blenloader/intern/versioning_270.c
@@ -309,4 +309,11 @@ void blo_do_versions_270(FileData *fd, Library *UNUSED(lib), Main *main)
 			}
 		}
 	}
+
+	if (!DNA_struct_elem_find(fd->filesdna, "RenderData", "int", "preview_start_resolution")) {
+		Scene *scene;
+		for (scene = main->scene.first; scene; scene = scene->id.next) {
+			scene->r.preview_start_resolution = 64;
+		}
+	}
 }