Hello! Appended are a few very minor patches: gl/rasterization.lisp: - in gl:tex-parameter's :texture-border-color use "elt" rather than "aref", to be consistent with other calls in the file - in gl:fog allow :fog-color -- I hope this is done in a manner consistent with cl-opengl style? glu/glu.lisp: - change names of some gluPerspective parameters to match their standard names Thanks for the very useful cl-opengl code! I hope these are worth applying! Best, Dan