Hatch Patterns, collection of 53 free hatch patterns for all versions of AutoCAD and LT. You should find a hatch pattern for glass under 'bhatch quick (click the dotted button to the right of the pattern box) custom' and one of the patterns listed there is 'glass.'
You want to know how to install custom hatch patterns (PAT) files into AutoCAD. Copy your PAT file(s) into the default Support folder that AutoCAD uses to find hatch patterns.
My best friend was a world class cartoonist; & he had a drawing technique that, when viewed, instantaneously conveyed that a window was in fact a window. He would use a series of offset diagonal lines, inside the glass pane area.drawn at random lengths.& varying in how close together they were, in parallel. I have seen this 'hatch' elsewhere in cartoon use; & it is very effective in making the window pane look like real glass. Does anyone know where a pattern like this may be obtained? (to use in AutoCAD LT)? Thanks, mark4man AutoCAD LT 2000. Err, no, LT is not a rendering software package.