For what it's worth, the modern source port for Descent (DXX-Rebirth) makes bilinear filtering optional, too, while using OpenGL and allowing MSAA and stuff. I

For what it's worth, the modern source port for Descent (DXX-Rebirth) makes bilinear filtering optional, too, while using OpenGL and allowing MSAA and stuff. I played through the first two games some time ago and I also found the bilinear filtered textures worse-looking than the blocky ones.