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Thorsten Froehlich wrote:
> "Rune" wrote:
>> He said that if a matrix transformation is applied *after* the
>> look_at vector, the error message says that it might help to make
>> the look_at the last statement. This error message does not make
>> sense with the POV-Ray 3.5 camera.
>
> No, but the warning itself does.
I'm not sure what you mean. We may agree.
My point is that both the occurrence of the warning and the error make
sense, but the warning text should be changed.
Rune
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In article <3cf92f29$1@news.povray.org> , "Rune" <run### [at] mobilixnet dk>
wrote:
> My point is that both the occurrence of the warning and the error make
> sense, but the warning text should be changed.
Well, the warning is the same for both the 3.1 and 3.5 code and it cannot with
absolute certainty check correctly if version 3.1 or 3.5 was active when the
camera was declared at the time this check is made. WHile the message is not
perfect, it isn't completely wrong either.
Thorsten
____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde
Visit POV-Ray on the web: http://mac.povray.org
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Thorsten Froehlich wrote:
> Well, the warning is the same for both the
> 3.1 and 3.5 code and it cannot with absolute
> certainty check correctly if version 3.1 or 3.5
> was active when the camera was declared at the
> time this check is made. WHile the message is
> not perfect, it isn't completely wrong either.
In a case like this I would presume that the warnings being correct for
the actual version of the software would be of higher priority.
In any case, to avoid too much confusion, the warning could be changed
from:
"Making look_at the last statement may help"
to:
"Making look_at the last statement may help if the version is set to
3.1"
or similar. But I think it would be better to drop it completely.
Rune
--
3D images and anims, include files, tutorials and more:
Rune's World: http://rsj.mobilixnet.dk (updated May 20)
POV-Ray Users: http://rsj.mobilixnet.dk/povrayusers/
POV-Ray Ring: http://webring.povray.co.uk
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OK, apparently I confused look_at with direction.
But anyway, you said
> The docs clearly explain that the order
> dependencies have been removed in the 3.5 camera. Any oder will yield exactly
> the same effect.
while the manual (RC5, Redhat Linux, 300MHz, 64MB) says:
The look_at modifier changes both up and right
so you should always specify them before look_at.
Also the angle calculation depends on the right vector
so right should precede it.
in paragraph 6.4.1.5
Mark Weyer
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in news:3CFB0FF6.FEE59A87@frege.mathematik.uni-freiburg.de Mark Weyer
wrote:
> The look_at modifier changes both up and right
> so you should always specify them before look_at.
>
Will be removed,
Thanks,
Ingo
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