Operating System: ArchLinux (64bit) OS version/build: Linux hades 3.18.6-1-ARCH #1 SMP PREEMPT Sat Feb 7 08:44:05 CET 2015 x86_64 GNU/Linux
The OpenGLRenderer on Linux renders everything upside-down and tiny. This even happens with the official CEGUI samples, so I’m filing this as a bug now. Here’s the original discussion on the forums: http://cegui.org.uk/forum/viewtopic.php?f=10&t=6995#p33375
Compile GLFW2 if your distro doesn’t have it in the repositories (like ArchLinux; it’s in the AUR there. Arch itself only has GLFW3).
CEGUI’s build system doesn’t properly detect glfw2 and pthreads, failing with linking errors. Hence, execute
export LDFLAGS=" -lglfw2 -pthread -lpthread "to overcome this.
Now compile CEGUI; it should also build the samples.
Everything is upside down and tiny, as shown in the below screenshot. Even the mouse cursor behaves exactly inverted (moving left moves it right, down moves it up, etc.)