enable backface culling which is not enabled by default on ES

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@61925 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/src/osx/iphone/glcanvas.mm b/src/osx/iphone/glcanvas.mm
index 5231dde91231dc87238164265c812839d65aebc5..98e97dcc7942e964ab6dd9239ce6f41163639a99 100644 (file)
--- a/src/osx/iphone/glcanvas.mm
+++ b/src/osx/iphone/glcanvas.mm
@@ -89,6 +89,7 @@
     
     glGenFramebuffersOES(1, &viewFramebuffer);
     glGenRenderbuffersOES(1, &viewRenderbuffer);
     
     glGenFramebuffersOES(1, &viewFramebuffer);
     glGenRenderbuffersOES(1, &viewRenderbuffer);

+    glEnable(GL_CULL_FACE);

     
     glBindFramebufferOES(GL_FRAMEBUFFER_OES, viewFramebuffer);
     glBindRenderbufferOES(GL_RENDERBUFFER_OES, viewRenderbuffer);
     
     glBindFramebufferOES(GL_FRAMEBUFFER_OES, viewFramebuffer);
     glBindRenderbufferOES(GL_RENDERBUFFER_OES, viewRenderbuffer);