+ case "$3" in
+ sky)
+ case "$2" in
+ env/*)
+ ;;
+ *)
+ echo "(EE) texture $2 of shader $1 is out of place, $3 textures must be in env/"
+ ;;
+ esac
+ ;;
+ *)
+ case "$2" in
+ env/*)
+ echo "(EE) texture $2 of shader $1 is out of place, $3 textures must not be in env/"
+ ;;
+ *)
+ ;;
+ esac
+ ;;
+ esac
+
+ # verify shader -> texture name