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I can't get the extended slope syntax to work. This code generates an
error:
#version 3.5;
#declare Foo = pigment {
  slope <0,-1,0>, 0, 0.5
  color_map {
    [0 Green]
    [0.16 Brown]
    [0.33 Black]
    [0.5 White]
  }
}
I think I remember someone mention this or before the beta or before
the beta period, but I can't remember who nor what. It's just that the
docs say it should work and it does not.
Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] vip bg
TAG      e-mail : pet### [at] tag povray org
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AFAIK, when modifying the range of the slope
>   slope <0,-1,0>, 0, 0.5
like this, you still need a colormap which ranges from
0 to 1, not
>   color_map {
>     [0 Green]
>     [0.16 Brown]
>     [0.33 Black]
>     [0.5 White]
>   }
cause you ain't declared the section from .5 to 1.
The slopemap will still use the entire colormap, but
spread the colormap across a smaller scale of slopes...
You should read the docs again, it is in there, though
not mentioning "unfinished colormaps", but this
spreading... Here's a quote:
Lo_slope and Hi_slope specifies which range of slopes are used,
so you can control which slope values return which pattern values.
Lo_slope is the slope value that returns 0.0 and Hi_slope is the
 slope value that returns 1.0.
Quote end.
Regards,
Tim
--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
Email: Tim### [at] gmx de
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You're forgetting brackets, try:
slope {<0,-1,0>, 0, 0.5}
...
And as Tim pointed out, if you specify 0 and .5, then you should have a
color map from 0 to 1, unless you want everything above .5 to be one solid
color.
 - Slime
[ http://www.slimeland.com/ ]
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On Tue, 6 Aug 2002 21:07:58 -0400, "Slime" <slm### [at] slimeland com> wrote:
>You're forgetting brackets, try:
>
>slope {<0,-1,0>, 0, 0.5}
I must be blind or something. Thanks!
Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] vip bg
TAG      e-mail : pet### [at] tag povray org
 
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