TerraVision can browse data over the Web (http), from an OpenGIS Consortium (OGC) Web Map Server (WMS), from your local disk, or from a disk mounted over your local network (e.g. NFS). • What 3D graphics cards does TerraVision support TerraVision does not require a 3D graphics card in order to operate, but such a card will allow more interactive frame rates. TerraVision should take advantage of any 3D graphics card that provides hardware-accelerated OpenGL support. Specifically, we have successfully tested TerraVision under the following 3D accelerator cards. • Intergraph Intense3D (Windows) • ELSA GLoria II-64 (Windows) • nVidia GeForce2 Ultra (Windows) • nVidia RIVA TNT 2/TNT 2 Pro (Windows) • 3DLabs Oxygen VX1 (Windows) • LeadTek Winfast GeForce 256 DDR (Windows) • InfiniteReality (SGI) • O2 (SGI) • RealityEngine (SGI) • Why is my Windows hardware OpenGL accelerator not being used? Automatically selecting a hardware accelerated pixel format for a Windows 3D accelerator card is not a