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30 Jul 2024 12:29:33 EDT (-0400)
  Strange Artifacts  
From: Jörg 'Yadgar' Bleimann
Date: 30 Sep 2011 05:47:56
Message: <4e85904c@news.povray.org>
Hi(gh)!

With my current house project ("Port Whatmough Residential Area") I 
encountered some strange artifacts when I tried to join two segments of 
a roof railing (a straight and a curved one) with a sphere.


having a radius of 3.5 units; as the railing generally is spaced 0.1 
units inwards from the roof's eged, the curved segment's (technically a 
section of a torus) radius is 3.6 units, therefore it's angular size is 


Although I've taken the resulting difference in the x direction (which 
calculates as cos(atan(0.1/3.6))*3.6) relative to the eastern end of the 
straight section into account, the spherical cornerpiece still does not 
fit seamlessly.

Also, along both railing sections, strange dots like those resulting 
from coincident surfaces are visible - but there is no concurrent 
surface at all!

See you in Khyberspace!

Yadgar


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Attachments:
Download '2011-09-30 port whatmough residential building #1, take 46 - extreme close-up of southern end of ground floor cutout rai' (16 KB) Download 'artifact_problem.jpg' (20 KB)

Preview of image '2011-09-30 port whatmough residential building #1, take 46 - extreme close-up of southern end of ground floor cutout rai'
2011-09-30 port whatmough residential building #1, take 46 - extreme close-up of southern end of ground floor cutout rai

Preview of image 'artifact_problem.jpg'
artifact_problem.jpg


 

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