OpenGL Demo？

[yuunanase]

Have any OpenGL's Demo？

I want to study it , but I run opengl render with error "於 0x00000000 的 mainApp.exe 中發生未處理的例外狀況: 0xC0000005: 讀取位置 0x00000000 時發生存取違規" in this line CEGUI::Font* fnt = guiSystem.getDefaultFont();.

[Pompei2]

here you are
http://www.cegui.org.uk/wiki/index.php/Tutorials