 | | 1-8sphe.dat tesselations compaire image
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Recently Travis Cobbs proposed to replace the existing 1-8sphe.dat primitive with an alternative that uses a different tesselation of the sphere surface. (tesselation is the way in wich a curved surface is represented by dividing it into plane quads (...) (24 years ago, 29-Sep-00, to lugnet.cad)
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| | Re: 1-8sphe.dat tesselations compaire image
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(...) What kind of spheres are these, exactly? Dave! (24 years ago, 29-Sep-00, to lugnet.cad)
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| | Re: 1-8sphe.dat tesselations compaire image
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(...) Dave, it might be because some of the subject lines had the word *skins* in them, as in images applied to the bricks. Dennis (24 years ago, 29-Sep-00, to lugnet.off-topic.fun)
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| | Re: 1-8sphe.dat tesselations compaire image
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(...) That could be--my network firewalls are draconian and somewhat prudish. My supervisor told me that when she was pregnant she was getting medical information online, and the system blocked many pregnancy sites, no doubt to prevent any (...) (24 years ago, 29-Sep-00, to lugnet.off-topic.fun)
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| | Re: 1-8sphe.dat tesselations compaire image
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(...) Hmpf, I haven't any of that stuf up. Must be on someone else his homepage. How silly, can't they not even differentiate between individual homepages ? You should complain to your I.T. manager about this unfair and extemely crude exclusion. To (...) (24 years ago, 29-Sep-00, to lugnet.off-topic.fun)
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| | Re: 1-8sphe.dat tesselations compaire image
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I have copied the image to the following location: (URL) really have to look at the picture in order to make any judgements. Verbal descriptions won't do any good. --Travis Cobbs (tcobbs@san.REMOVE.rr.com) "Dave Schuler" <orrex@excite.com> wrote in (...) (24 years ago, 29-Sep-00, to lugnet.cad)
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(...) They're not really preventing you from expressing yourself; they're preventing me from reading your expression. In any case, it's their network; if they want to restrict certain access, I'd say they're within their rights. Dave! (24 years ago, 29-Sep-00, to lugnet.off-topic.fun)
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| | Re: 1-8sphe.dat tesselations compaire image
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(...) No that cant be it, Dave did not say he can't reach Lugnet, but he's saying he can't reach my "homepage" at (URL) don't have the word *skins* anywhere. But I'm getting very curious now what the net managers consider to be sexual content in (...) (24 years ago, 29-Sep-00, to lugnet.off-topic.fun)
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| | Re: 1-8sphe.dat tesselations compaire image
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(...) it was important enough to show up in the Lugnet Spotlight sections. (24 years ago, 30-Sep-00, to lugnet.cad)
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| | Re: 1-8sphe.dat tesselations compaire image
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4 days ago I've posted that I've made a compaire image showing the two possible alternatives for surface tesselations for the 1-8sphe.dat primitive. I've waited a while before giving my own opinion, but here it is: For me, the proposed alternative (...) (24 years ago, 3-Oct-00, to lugnet.cad)
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| | Re: 1-8sphe.dat tesselations compaire image
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I agree with Manfred's conclusions. I'd also like to add that if Travis had made his submission at a different time, so we didn't have the alternative, I would have been very happy to accept his version of the primitive. Another thought: what about (...) (24 years ago, 3-Oct-00, to lugnet.cad)
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| | Re: 1-8sphe.dat tesselations compaire image
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"Manfred Moolhuysen" <moom@nospamchello.nl> wrote in message news:G1uxnB.I8H@lugnet.com... (...) primitive. (...) per (...) had, (...) triangles. (...) even (...) the (...) existing (...) was (...) be (...) Works for me. Don't worry about the (...) (24 years ago, 4-Oct-00, to lugnet.cad)
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| | Re: 1-8sphe.dat tesselations compaire image
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"Steve Bliss" <steve.bliss@home.com> wrote in message news:6alktscro14u6dr...4ax.com... (...) Quite frankly, I have no idea what a 48 version would look like that followed James' approach. Would there be a single row of quads with the rest being (...) (24 years ago, 4-Oct-00, to lugnet.cad)
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| | Re: 1-8sphe.dat tesselations compaire image
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(...) Travis, do you save any results of the variation trials ? I think we should do the same thing here, make a compaire image of the different possible variations and decide wich one looks the best (before you start generating those type 5 lines). (...) (24 years ago, 4-Oct-00, to lugnet.cad)
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| | Re: 1-8sphe.dat tesselations compaire image
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(...) Travis, what do you think about this: (please take a look at the following image) (URL) tesselation matches the existing normal 1-8sphe.dat tesselation closely, all "even" points are identical to the points in the normal 1-8sphe primitive. (...) (24 years ago, 4-Oct-00, to lugnet.cad)
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| | Re: 1-8sphe.dat tesselations compaire image
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"Manfred Moolhuysen" <moom@nospamchello.nl> wrote in message news:G1w9FL.Csy@lugnet.com... (...) made (...) should do (...) No: they never reached the point of actually generating a sphere for anything past the standard tesselation. All the higher (...) (24 years ago, 4-Oct-00, to lugnet.cad)
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| | Re: 1-8sphe.dat tesselations compaire image
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"Manfred Moolhuysen" <moom@nospamchello.nl> wrote in message news:G1wK2M.6ry@lugnet.com... (...) closely, (...) primitive. (...) It does look good, but it is actually a 32 tesselation, not a 48 (32 segments around the equator of an entire sphere). (...) (24 years ago, 4-Oct-00, to lugnet.cad)
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| | Re: 1-8sphe.dat tesselations compaire image
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(...) You're right, I haven't thought of that. Well, you get the general idea. It would be 3 parallel bands of quads along the perimeter, and the rest diveded proportionaly. Generating this is fairly easy in my cad program, and I can use the (...) (24 years ago, 4-Oct-00, to lugnet.cad)
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| | Re: 1-8sphe.dat tesselations compaire image
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(...) I've made a new wire-frame model, and I've updated the image at: (URL) the image is now showing a 48 tesselation. It uses 54 quads and 36 triangles. Greetings, M. Moolhuysen. (24 years ago, 5-Oct-00, to lugnet.cad)
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