No special setting in ArcView or the 3D Analyst is required. A variety of OpenGL cards are available. Their capabilities and prices vary. Look for cards, and their drivers, that are designed and optimized for OpenGL to achieve the best performance. Images, such as those from satellites, orthophotos, and scanned maps, can be rendered in real time when texture mapping is supported in hardware on the card.
Texture memory controls the total amount of imagery that can be used at one time.
Maximum texture block size controls how large an individual image can be. The 3D Analyst requests a 24-bit z buffer but will work with values both higher and lower. The higher the better. Be aware that configuring a card to maximize one of its capabilities may diminish its capabilities in other areas. For example, just because a card supports a 24-bit color mode and 1280x1024 output resolution doesn't mean you can have them simultaneously.