diff -ur libgltf.org/src/RenderScene.cpp libgltf/src/RenderScene.cpp
--- libgltf.org/src/RenderScene.cpp	2014-04-18 12:13:26.226991534 +0200
+++ libgltf/src/RenderScene.cpp	2014-04-18 12:13:46.133990800 +0200
@@ -587,8 +587,6 @@
 	}
     pFPSCounter->timeStampEnd();
     pFPSCounter->printFPS(pViewport);
-
-    SwapBuffers(wglGetCurrentDC());
 }
 
 void RenderScene::releaseRender(void* lpParam)