Fix T43090: Cycles + Freestyle + border render = black render.

The reported problem was due to a special case where there are no strokes
to be rendered.  Since rendering an empty scene is a waste of time, the issue
was addressed here by skipping the stroke rendering process entirely.

1 files changed, 1 insertions, 1 deletions

diff --git a/source/blender/freestyle/intern/blender_interface/FRS_freestyle.cpp b/source/blender/freestyle/intern/blender_interface/FRS_freestyle.cpp
index cfadf80dcf6..32b4c5455a7 100644
--- a/source/blender/freestyle/intern/blender_interface/FRS_freestyle.cpp
+++ b/source/blender/freestyle/intern/blender_interface/FRS_freestyle.cpp
@@ -496,7 +496,7 @@ void FRS_composite_result(Render *re, SceneRenderLayer *srl, Render *freestyle_r
 	rl = render_get_active_layer( freestyle_render, freestyle_render->result );
 	if (!rl || rl->rectf == NULL) {
 		if (G.debug & G_DEBUG_FREESTYLE) {
-			cout << "Cannot find Freestyle result image" << endl;
+			cout << "No Freestyle result image to composite" << endl;
 		}
 		return;
 	}