win10 cannot draw tetrahedral

[Haikuana]

glupBegin(GLUP_TETRAHEDRA) shows error in "geogram_demo_GLUP"
but it success on linux platform or Win7!

could you please figure out the reason?

[BrunoLevy]

Yes, some users encountered the problem with some GPUs/drivers.
Try creating a file called geogram.ini in the "My documents" folder with:
gfx:GLUP_profile=GLUPES2
(it will use a less efficient graphics backend that appears to work more often)