OpenGL is an application interface that is used by Photoshop to render image details. Unfortunately, a high end graphics card is necessary for implementing OpenGL with 30 bit color. AMD FirePro and NVidia Quadro graphics cards were, up until recently, the only cards that could provide 30 bit color in Adobe products. One reason for using 30 bit color graphics is that the application can generate billions of colors which produce smooth gradients. Most systems used in photo-editing default to 24 bit color because of the type of video card used in the computer’s build.
Those of you that have computers with GEForce graphics cards can now explot 30 bit color with a new driver. NVidia released a studio driver that utilizes OpenGL and can produce 30 bit color in Photoshop. GEForce graphics cards are geared towards gamers and are a lot cheaper than comparable FirePro and Quadro cards. More info can be found at: https://www.nvidia.com/en-us/geforce/news/studio-driver/ …Jim