While I don't have any Open GL problems (I have an ATI Radeon 9700) I was curious & tested the GLDirect4 using emulation via T&L Hardware aceleration and DirectX9 - the most "accelerated" settings for DirectX that my card can use (or any current directX capable card for that matter)
Using a fairly complex test model, I discovered the result indeed works, but is VERY much slower and chews up a lot more RAM.
On an older card, I imagine this emulation performance would be even worse.
Based on that, I think if you have OpenGL problems with your current card, you are better off simply coughing up for at least a high end "gaming" card like Ati Radeon 9700 or 9800 Pro, or Nvidia FX 5800 or FX5900 - which all handle OpenGL very well.
Would be interested to hear others experiance?
PAUL KING | https://www.prime.net.nz
ArchiCAD 8-28 | Twinmotion 2024
Windoze 11 PC | Intel Core i9 10900K | Nvidia Gforce RTX 3080 | 32 Gb DDR3 | 2x4K monitor extended desktop