OpenGL is software that allows multimedia programs (such as games, movies, and graphic design software) to communicate with the hardware that sends animation to your computer screen. OpenGL speeds up communication between the animation source and your screen, helping to produce realistic animation.
No. OpenGL is already installed on your computer. However, you should visit your video card manufacturer's website to make sure you have the latest drivers for OpenGL installed. All video card manufacturers make their own OpenGL drivers.
Yes. You need a video card. If you have a newer computer, you probably already have the hardware (video card) that you need. Most video cards work with OpenGL. Check the information that came with your video card or go to the card manufacturer's website to make sure your card is compatible with the latest version of OpenGL. In addition to making sure that your video card works with OpenGL, you should make sure that your video card drivers are up to date. Go to the video card manufacturer's website to make sure you have the latest drivers for OpenGL. All video card manufacturers make their own OpenGL drivers.
Yes. They both come with this version of Windows, both are fast, and both offer many features for people who play games that demand a lot of multimedia performance. You should keep drivers for both Direct3D and OpenGL up to date.
Some game companies choose to optimize their games for OpenGL. Check the information that came with your game for more information about which technology it uses.
