Nieminen Mika wrote:
> 
>   As a result of a discussion about rendering speed of meshes and unions of
> triangles, I made this test.
> 
>   * The result:

  I question the validity of your test results. Not for the reporting
of the final results as I am sure you have reported them accurately but
the method used to obtain them is in doubt.
  When I ran my test I was using physically based text files filled
with triangles. Yours triangles were produced using while loops. I
personally think that using the program to produce the triangle union/
mesh object can and will directly affect the speed of processing the
file in both parsing times and calculation times. Simply reading a
text file and computing the position of each triangle will impact the
results much less.
  Am I correct in these assumptions or should I go bury my head
somewhere ?

-- 
Ken Tyler

mailto://tylereng@pacbell.net

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