I am very proud for having created my own window with a trapeze shape [:D] ...
But I still have a minor issue : I opened a .obj SH3D window to find the colour used for the glass. I found : flltgrey.
But when using this colour for my glass, it is finally much more transparent than the SH3D's library windows... why ? Did I use an incorrect color ? Must my glass be thicker in order to have another colour aspect ?