I thought you might be interested in looking at How hard is it porting ARMA from DirectX to Open-GL?.
https://forums.bohemia.net/forums/topic/125493-how-hard-is-it-porting-arma-from-directx-to-open-gl/?do=findComment&comment=2126009
× Pasted as rich text. Restore formatting
Only 75 emoji are allowed.
× Your link has been automatically embedded. Display as a link instead
× Your previous content has been restored. Clear editor
× You cannot paste images directly. Upload or insert images from URL.