Per pixel

Saturday, October 7, 2006 by Vagabundus | Discussion: Object Desktop

This is probably something that all computer users ought to know, but I was hiding somewhere (obviously *not* in "graphicsland) when the dictionary update was distributed.

What does "per pixel" mean?

I've seen it used several times, and people seem to be using it in different ways. It is a requirement for Aero (the GUI part of Vista) but Microsoft doesn't define it either (no surprise there).

I have a graphics card that says it supports it (NVIDIA Quadro) but the do-you-really-think-your-silly-little-computer-won't-need-to-be-upgraded "compatability check" by Microsoft says I don't have it.

Is it analog, or digital? Meaning, do you either have it or not, or are there degrees so that you can some, but not enough?

And what happens if you don't have it (or enough of it) and you load a customize file that uses it?

Thanks.

Roy
Koasati
Reply #1 Saturday, October 7, 2006 10:49 PM
"Per Pixel" refers to the ability to render graphics with each pixel possessing it's own degree of translucency.
CerebroJD
Reply #2 Sunday, October 8, 2006 12:56 AM
Hmm, I'm trying to remember which episode of Under The Skin (Link) we talked about this on... The number escapes me, but we do make it clear on there.
Neil Banfield
Reply #3 Sunday, October 8, 2006 5:18 AM

For Aero under Windows Vista you need a card capable of Pixel Shaders 2.0.

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