Creating the holes via a mask of some sort was definitly considered. However at the time this model was created I was not able to figure out a viable solution that had the aesthetics we desired due to the lighting restrictions with certain forms of transparency in the editor.
Now that were working under the UDK its quite possible that new lighting techniques and such would allow us to do so however I do not know for sure. At the time we decided that creating the holes in the physical mesh was the easiest solution. Thankfully the glass pane is seperate from the rest of the mesh so we can optimise that when the time comes.
I probably would not have tackled the problem the same way if I had to create the model today but hey thats the beauty of learning. Thanks for the feedback!
Molez
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