Years. EDIT: As a follower of https://mesamatrix.net/ https://mesamatrix.net/ I don't think it would be unreasonable to say about 3 years to get something tha

Years. EDIT: As a follower of https://mesamatrix.net/ https://mesamatrix.net/ I don't think it would be unreasonable to say about 3 years to get something that kind of works, five for something semi reasonable, and 8 for something at modern open gl level.