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Re: "Rites of Passage" wheel reinventing

by talexb (Canon)
on Feb 26, 2004 at 22:50 UTC ( #332130=note: print w/ replies, xml ) Need Help??


in reply to "Rites of Passage" wheel reinventing

Just wanted to thank you for reminding me about 'backface culling' -- at CEGEP (what they call college in Quebec) back in 75/76 we had access to an HP 9810 Programmable Calculator, and one of the geeks managed to do 3D plots of cos(x)/exp(x^2) -- with backface culling (although I never knew what it was called until now).

That was an absolutely fascinating tool -- one day, I decided to plot sin(x) on the x axis and cos(x) on the y axis to see what kind of wacky curve I'd get. Of course, it started drawing a unit circle. D'Oh.

Alex / talexb / Toronto

Life is short: get busy!


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Re: Re: "Rites of Passage" wheel reinventing
by Jaap (Curate) on Feb 28, 2004 at 22:40 UTC
    ... one day, I decided to plot sin(x) on the x axis and cos(x) on the y axis...

    And x on the z axis lol. Sorry, but i couldn't resist ;)

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