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screenZ (Read 398 times)
drasko
screenZ
Jun 4th, 2008, 9:50pm  
I am working on pretty advanced data visualization of links between websites (link to old version below):

http://www.searchengine-analysis.com/seo-tool/pyr3/

I am now working on adding the possibility to click in the 3D image. My idea seems to work. But I do not understand the screenZ() function. What is the Z value on a two-dimensional screen?

drasko
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JohnG
Re: screenZ
Reply #1 - Jun 4th, 2008, 10:14pm  
screenZ returns the z-buffer value of the pixel. The z-buffer is used so that when drawing things in 3D items behind others don't get drawn to screen.
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drasko
Re: screenZ
Reply #2 - Jun 5th, 2008, 1:07am  
Ok, that makes sense.

regards
drasko
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