POV-Ray 3.5b6, PIII 733 160MB, Win98SE

When rendering an isosurface with both max_gradient and evaluate on, I receive
the following double warning.  It doesn't matter what max_gradient is set to.

File: E:\My Documents\MyProjects\Povray\Landscape.pov  Line: 26
Warning: The maximum gradient found was 1.401, but no default max_gradient
was set.

File: E:\My Documents\MyProjects\Povray\Landscape.pov  Line: 26
Warning: The maximum gradient found was 1.401, but max_gradient of
the isosurface was set to 5.000. Adjust max_gradient to
get a faster rendering of the isosurface.


Thanks POV-Team!
Michael
--
#macro M(D)#local J=strlen(D);#local _=""#while(J>0)#local _=concat(_,substr(D
,J,1))#local J=J-1;#end _#end sphere{z*9,5pigment{rgb x}}#macro N(D,J)text{ttf
"timrom.ttf"M(D)1,0 translate-J}#end#macro O(E,K)#local _=N(E,K)light_source{-
z*9rgb 1projected_through{_}}#end O("leahciM"<1.6,-.3.9>)O("nosnhoJ"<1.6.9.9>)

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In article <3bc9bb8b@news.povray.org> , "Redbeard \(MDJohnson\)" 
<red### [at] wvadelphianet> wrote:

> When rendering an isosurface with both max_gradient and evaluate on, I receive
> the following double warning.  It doesn't matter what max_gradient is set to.
>
> File: E:\My Documents\MyProjects\Povray\Landscape.pov  Line: 26
> Warning: The maximum gradient found was 1.401, but no default max_gradient
> was set.
>
> File: E:\My Documents\MyProjects\Povray\Landscape.pov  Line: 26
> Warning: The maximum gradient found was 1.401, but max_gradient of
> the isosurface was set to 5.000. Adjust max_gradient to
> get a faster rendering of the isosurface.

Could you supply the scene please?


    Thorsten

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"Thorsten Froehlich" <tho### [at] trfde> wrote in message
news:3bc9ccfc@news.povray.org...
> In article <3bc9bb8b@news.povray.org> , "Redbeard \(MDJohnson\)"
> <red### [at] wvadelphianet> wrote:
>
> > When rendering an isosurface with both max_gradient and evaluate on, I
receive
> > the following double warning.  It doesn't matter what max_gradient is set
to.
> >
> > File: E:\My Documents\MyProjects\Povray\Landscape.pov  Line: 26
> > Warning: The maximum gradient found was 1.401, but no default max_gradient
> > was set.
> >
> > File: E:\My Documents\MyProjects\Povray\Landscape.pov  Line: 26
> > Warning: The maximum gradient found was 1.401, but max_gradient of
> > the isosurface was set to 5.000. Adjust max_gradient to
> > get a faster rendering of the isosurface.
>
> Could you supply the scene please?
>
>
>     Thorsten

This isn't the exact scene, but it generates the error.  I don't think it
matters what the isosurface is.

isosurface
{
 function { y }
 max_gradient 1.925
 evaluate 1, 10, 0.99
 contained_by { box {-3,3 } }
 pigment { rgb 1 }
}

light_source { <100, 500,-20> rgb 1 }

camera { location <2,3,-1> look_at 0 }

Michael

Post a reply to this message

In article <3bc9d097$1@news.povray.org> , "Redbeard \(MDJohnson\)" 
<red### [at] wvadelphianet> wrote:

> This isn't the exact scene, but it generates the error.  I don't think it
> matters what the isosurface is.
>
> isosurface
> {
>  function { y }
>  max_gradient 1.925
>  evaluate 1, 10, 0.99
>  contained_by { box {-3,3 } }
>  pigment { rgb 1 }
> }
>
> light_source { <100, 500,-20> rgb 1 }
>
> camera { location <2,3,-1> look_at 0 }

Thanks!  I found and fixed this problem for the next beta.

    Thorsten

____________________________________________________
Thorsten Froehlich
e-mail: mac### [at] povrayorg

I am a member of the POV-Ray Team.
Visit POV-Ray on the web: http://mac.povray.org

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