 | | Possible replacement for 1-8sphe.dat —Travis Cobbs
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| | | I started a discussion on the .dev group regarding sphere tesselation a little while back, and it came out that there is some dissatisfaction with the current sphere primitive. I have finished the code which generates a replacement sphere primitive, (...) (24 years ago, 21-Sep-00, to lugnet.cad.dat.parts.primitives)
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| | | | | Re: Possible replacement for 1-8sphe.dat —Steve Bliss
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| | | | | (...) I think your both of your files are significant improvements over the existing primitives. My only concern is the possible impact changing the primitive could have on other files, where surfaces intersect spheres, but not at the edges of the (...) (24 years ago, 21-Sep-00, to lugnet.cad.dat.parts.primitives)
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| | | | | | | Re: Possible replacement for 1-8sphe.dat —Travis Cobbs
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| | | | | | "Steve Bliss" <steve.bliss@home.com> wrote in message news:ni4kssg6gejoaju...4ax.com... (...) on (...) files (...) I actually looked at all of the files that contain the string sphe while checking to see the results of my primitive substitution (...) (24 years ago, 21-Sep-00, to lugnet.cad.dat.parts.primitives)
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| | | | | Re: Possible replacement for 1-8sphe.dat —Chris Dee
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| | | | | (...) I think these should have 4 decimal places, as with the majority of the circular primitives. The reason for this is that there is often a need to use 3DPs in parts. Where these include circular primitives and scale them up by a factor of 10 (...) (24 years ago, 21-Sep-00, to lugnet.cad.dat.parts.primitives)
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| | | | | Re: Possible replacement for 1-8sphe.dat —Manfred Moolhuysen
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| | | | | I'm sorry for breaking my reply up intp little pieces, but for an unnown reason I'm not able to post any long message to Lugnet for the past 4 days. (...) Please make that 4 decimal places, for all the other curved primitives that the 1-8sphe.dat (...) (24 years ago, 22-Sep-00, to lugnet.cad.dat.parts.primitives)
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| | | | | Re: Possible replacement for 1-8sphe.dat —Manfred Moolhuysen
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| | | | | (...) Following an initiative by Axel Poqué, I've resubmitted an improved version of the original 1-8sphe.dat primitive for the next update. This version still has 9 quads and 4 triangles, but coplanarity and meeting the surface of the sphere falls (...) (24 years ago, 22-Sep-00, to lugnet.cad.dat.parts.primitives)
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| | | | | Re: Possible replacement for 1-8sphe.dat —Manfred Moolhuysen
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| | | | | (...) Please tell me what the benefit is of your even distribution of triangles over the currend distribution whith 9 quads and 4 triangles? To my opinion, this factor alone doesn't seem to result into any severe deformations in renderings with (...) (24 years ago, 22-Sep-00, to lugnet.cad.dat.parts.primitives)
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| | | | | | | Re: Possible replacement for 1-8sphe.dat —Travis Cobbs
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| | | | | | "Manfred Moolhuysen" <moom@nospamchello.nl> wrote in message news:G1AHn2.3Ir@lugnet.com... (...) on (...) opinion, (...) number (...) The even distribution of points means that the polygons involved stay closer to the surface of an actual sphere at (...) (24 years ago, 22-Sep-00, to lugnet.cad.dat.parts.primitives)
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| | | | | | | | Re: Possible replacement for 1-8sphe.dat —Manfred Moolhuysen
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| | | | | | (...) [snip] (...) I also believe that rendering speed isn't a big issue here. I was more curious why you believed that your tesselation was better.I happen to like the currend tesselation because I very quickly understood how to reproduce its (...) (24 years ago, 23-Sep-00, to lugnet.cad.dat.parts.primitives)
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| | | | | Re: Possible replacement for 1-8sphe.dat —Manfred Moolhuysen
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| | | | (...) However, if there is a general feeling that a sphere primitive with an even distibution of triangles is a far better option, I'm prepaired to withdraw my submission (made August 22th) in favour for a 4 decimal places version the primitive (...) (24 years ago, 22-Sep-00, to lugnet.cad.dat.parts.primitives)
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