Do they have to repaint on MS Windows? It seems like they do. There is some feature where if you move a window around, you only see the outline of the window until you plop it down somewhere. "Show contents while dragging" or some such. Does this sort of thing require a repaint? It always seems faster on older systems.
What is the minimum video card and video ram to be able to reproduce this new fangled stuff? (I didn't listen to the video commentary.) Brian
-----Original Message----- From: Jason Clinton Sent: Friday, February 24, 2006 12:44 PM
Yea, those 'features' are marginally useful. The stuff that makes sense, though: applications 'minimize', literally, to the tray.
Also,
applications never have to 'repaint' their view ports because, as far as they are concerned, they are never covered by another window -- they are just rendering to an abstract GL surface.
Presently, when you drag a window around on your desktop, all the apps which were dragged over have to repaint their contents. That's why your CPU utilization goes way up. -- Jason Clinton
On Fri, 2006-02-24 at 12:52 -0600, Kelsay, Brian - Kansas City, MO wrote:
Do they have to repaint on MS Windows? It seems like they do. There is some feature where if you move a window around, you only see the outline of the window until you plop it down somewhere. "Show contents while dragging" or some such. Does this sort of thing require a repaint? It always seems faster on older systems.
Yea, they do on Windows too even in 'show window contents while dragging'. That's why when an app locks up, you don't know it until you minimize it and then try to restore it and you get a 'dirty' surface. The dirty area is the region of the video buffer that contained information from other applications that hasn't get be repainted by the application which now claims that area.
What is the minimum video card and video ram to be able to reproduce this new fangled stuff? (I didn't listen to the video commentary.)
32 MB of video RAM and something with 3D accelerationg support. The demo was made on an ATI Radeon 9250 which came out over 2 years ago. The 7xxx series of ATI cards also work. Nvidia cards as old as the Geforce MX should also work.
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Jason Clinton -
Kelsay, Brian - Kansas City, MO