Fix 3D rule-based rendering test

qgis · Jan 15, 2020 · 878dfc1 · 878dfc1
1 parent c868768
commit 878dfc1
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/tests/src/3d/testqgs3drendering.cpp b/tests/src/3d/testqgs3drendering.cpp
@@ -453,8 +453,14 @@ void TestQgs3DRendering::testRuleBasedRenderer()
   engine.setRootEntity( scene );
 
   scene->cameraController()->setLookingAtPoint( QgsVector3D( 0, 0, 250 ), 500, 45, 0 );
-  QImage img = Qgs3DUtils::captureSceneImage( engine, scene );
 
+  // When running the test, it would sometimes return partially rendered image.
+  // It is probably based on how fast qt3d manages to upload the data to GPU...
+  // Capturing the initial image and throwing it away fixes that. Hopefully we will
+  // find a better fix in the future.
+  Qgs3DUtils::captureSceneImage( engine, scene );
+
+  QImage img = Qgs3DUtils::captureSceneImage( engine, scene );
   QVERIFY( renderCheck( "rulebased", img, 40 ) );
 }