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List:       paraview
Subject:    [Paraview] Re: Rendering problem....
From:       "Berk Geveci" <berk.geveci () kitware ! com>
Date:       2007-09-20 14:52:42
Message-ID: 45d654b0709200752r136b98f3mf077422ea84b2418 () mail ! gmail ! com
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VTK actually uses double precision for this sort of stuff. However, a
lot of times the point coordinates come in as float. Also, there may
be some intermediate variables that we missed in the float -> double
conversion. Also, OpenGL uses float not double :-) It is a difficult
problem...

-berk


On 9/20/07, St=E9phane Mont=E9sino <Stephane.Montesino@hmg.inpg.fr> wrote:
> Hi all,
> A friend who studied  micro-channel with FLUENT had also some rendering
> problem with small geometry   (10^(-6) m)
> Most of people who are not familiar with the numerical world and
> programming, doesn't normalised (with non dimension) their data with a
> characteristc length or velocity or time, etc...
> They use small or big values and then, they are surprised to see some bug=
s.
> They forgot that their value are used by a processor which only read
> binary with finite extension ...
>
> Maybe, Paraview should use double precision (or more...lol) for this
> type of users.
>
> St=E9ph
>
>
>
>

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