1 files changed, 3 insertions, 0 deletions
diff --git a/tools/sk_app/Window.cpp b/tools/sk_app/Window.cpp
index 436b6b9aa9..6713c4c2c9 100644
--- a/tools/sk_app/Window.cpp
+++ b/tools/sk_app/Window.cpp
@@ -88,6 +88,9 @@ void Window::onPaint() {
         SkCanvas* canvas = backbuffer->getCanvas();
 
         for (int i = 0; i < fLayers.count(); ++i) {
+            fLayers[i]->onPrePaint();
+        }
+        for (int i = 0; i < fLayers.count(); ++i) {
             fLayers[i]->onPaint(canvas);
         }