Chris Huff <Chr### [at] compuservecom> wrote:

> There seems to be a problem with filtering objects, filter is treated
> like transmit. I haven't downloaded the bug-fixed version yet, but this
> seems to be unrelated to that bug.
> For example, this:
> sphere {< 0, 0, 0>, 1
>   pigment {color Green filter 1}
>  translate < 0, 1.0001, 0>
> }
> is invisible when placed on a ground plane, when it should show up as a
> green transparent sphere.
> This happens with #version 3.1 but not with #version 3.14159, I don't
> know if it happens in UVPov.

We tried it and we always get a correct image. The whole scene file we
used is included in this mail.
 
A little note:
if you set the version in the source, the setting in the prefs dialog
will be overwritten. Thaugt we could better tell you, we have been
looking for a bug that wasn't there. ;-)

There was a problem but that has been fixed by Nathan in 6.1, we waited
for v6.1 to release our version. 
Are you sure you weren't working with a version you compiled yourself?

If you can reproduce it again with the nov 17 version, please e-mail us
the complete source and a prefs file. 

A little advice: if you have questions about any patch we included,
please post your message in a group where you are more likely to get an
answer (patches, general,..) and give it an appropriate 'Subject'.

Smellenbergh

// Persistence of Vision Ray Tracer Scene Description File
// File: ?.pov
// Vers: 3.1
// Desc: Checkered Floor Example
// Date: mm/dd/yy
// Auth: ?
//

#include "colors.inc"
//#version 3.1;

global_settings
{
  assumed_gamma 1.0
}

// ----------------------------------------
camera {
    perspective 
    location <0.0, 1.5, -5>
    up y*image_height right x*image_width
    angle 60
    look_at <0.0, 0.0, 0.0>
}


sky_sphere
{
  pigment
  {
    gradient y
    color_map { [0.0 color blue 0.6] [1.0 color rgb 1] }
  }
}

light_source
{
  0*x // light's position (translated below)
  color red 1.0  green 1.0  blue 1.0  // light's color
  translate <-30, 30, -30>
}
sphere {< 0, 0, 0>, 1
  pigment {color Green filter 1}
 translate < 0, 1.0001, 0>
}

// ----------------------------------------
plane
{
  y, -1
pigment {
    checker 
    rgbft <1.0, 1.0, 1.0, 0.0, 0.0>,
    rgbft <0.6, 0.6, 0.6, 0.0, 0.0>
}

}



-- 
e-mail:sme### [at] skynetbe

http://users.skynet.be/smellenbergh

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