On Dec 24, 2008, at 8:40 PM, jonas ulrich wrote: > What exactly is quartz extreme?
<http://en.wikipedia.org/wiki/Quartz_Extreme> Quartz Extreme Mac OS X v10.2 introduced Quartz Extreme: graphics processor (GPU) acceleration for the Quartz Compositor. With Quartz Extreme, no central processor (CPU) cycles are utilized for scene composition. Quartz Compositor runs using the graphics processor (GPU) by encapsulating each rendered backing store in an OpenGL texture map or surface. The GPU then composes the surfaces and maps to provide the final image, which is delivered to its frame buffer. Quartz Extreme only uses OpenGL commands, and requires a graphics card connected to an AGP 2X or faster bus (including AGP 4X, 8X, and PCI Express), supporting textures and maps of arbitrary size, since many of the renderers have no size limitation (Quartz 2D for example).[4] It is automatically enabled on Mac systems with one of the following types ofgraphics cards:[5] • AMD (ATI) Radeon, AGP-based, 16MB VRAM minimum, or better • NVIDIA GeForce2 MX, 16MB VRAM minimum, or better Quartz Extreme is not the same as Quartz 2D Extreme, which is optional GPU acceleration for the Quartz 2D renderer. Further, any GPU that is capable of rendering Core Imageinstructions is also capable of Quartz Extreme. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed Low End Mac's G3-5 List, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to g3-5-list@googlegroups.com To unsubscribe from this group, send email to g3-5-list-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list?hl=en Low End Mac RSS feed at feed://lowendmac.com/feed.xml -~----------~----~----~----~------~----~------~--~---
