daw42/glslcookbook — pull request #3 by dangets (2012-06-15 17:29:19+00:00)
Title: Made some references be const to fix compiler errors

Was getting compiler errors

scenereflectcube.cpp:64: error: invalid initialization of non-const reference of type ‘glimg::SingleImage&’ from a temporary of type ‘glimg::SingleImage’

After inspecting the code - it looks like they're okay to be made const, ch04 compiled fine after that.