In the sample below we have an example of degenerate triangles. The
indented triangles are those that Pov reports as being degenerate.
When rendered as a union the degenerate warnings appear. When commented
out those warnings disappear. When rendered as a mesh however Pov fails
to report them as being degenerate. This has been true since the mesh
wrapper was added in Pov v3.0x. Why are they not being reported as
degenerate triangles when used in a mesh ?

I have asked this before and have never received a response. Hopefully
someone has an idea now that I have provided an example to evaluate the
discrepancy with.

//union{
mesh{
   triangle{<0.1173,0.4003,0.0>,<0.0,0.4,0.0>,<0.0,0.4,0.0>}
triangle{<0.0,0.4003,-0.1173>,<0.1173,0.4003,0.0>,<0.0,0.4,0.0>}
   triangle{<0.0,0.4003,-0.1173>,<0.0,0.4,0.0>,<0.0,0.4,0.0>}
triangle{<-0.1173,0.4003,0.0>,<0.0,0.4003,-0.1173>,<0.0,0.4,0.0>}
   triangle{<-0.1173,0.4003,0.0>,<0.0,0.4,0.0>,<0.0,0.4,0.0>}
triangle{<0.0,0.4003,0.1173>,<-0.1173,0.4003,0.0>,<0.0,0.4,0.0>}
   triangle{<0.0,0.4003,0.1173>,<0.0,0.4,0.0>,<0.0,0.4,0.0>}
triangle{<0.1173,0.4003,0.0>,<0.0,0.4003,0.1173>,<0.0,0.4,0.0>}
}

-- 
Ken Tyler

See my 700+ Povray and 3D Rendering and Raytracing Links at:
http://home.pacbell.net/tylereng/index.html

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