Not immediately sure, but I /think/ it is because you use a 
pigment_pattern which only reads black/white.

Have you tried this?
     texture {
       pigment {
           gradient x
           pigment_map {
             [0.00 Red_Texture]
             [0.25 Red_Texture]
             [0.75 White_Texture]
             [1.00 White_Texture]
           }

         translate <0.5, 0.5, 0>
         rotate 180*y
         scale <24, 14, 1>
       }
etc...

Thomas


On 24-9-2013 16:00, jceddy wrote:
> Hopefully this will be quick for someone...I'm banging my head against it and I
> know it should be simple, but not quite getting it.
>
> I'm texturing a box using a pigment gradient with two image maps as input. When
> I render I don't get any color from the original images...what am I missing?
>
> The attachment has the output on top and the original image maps on the bottom.
>
> Here's the relevant code:
>
> #declare White_Texture =
> pigment {
>    image_map {
>      jpeg "white_hq.jpg"
>      map_type 0
>      interpolate 2
>    }
> }
>
> #declare Red_Texture =
> pigment {
>    image_map {
>      jpeg "red_hq.jpg"
>      map_type 0
>      interpolate 2
>    }
> }
>
> box {
>    <-12, -7, -0.1>, <12, 7, 0.1>
>
>    texture {
>      pigment {
>        pigment_pattern {
>          gradient x
>          pigment_map {
>            [0.00 Red_Texture]
>            [0.25 Red_Texture]
>            [0.75 White_Texture]
>            [1.00 White_Texture]
>          }
>        }
>
>        translate <0.5, 0.5, 0>
>        rotate 180*y
>        scale <24, 14, 1>
>      }
>      finish {
>        ambient 1
>        diffuse 0
>      }
>    }
> }
>

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