Oh yeah.. the .png image... I realize except for the gray triangle, it's all 
white-on-transparent, so kind of hard to see in some applications!


"Dayv Helfrich" <Day### [at] Gmailcom> wrote in message 
news:4657c3e4@news.povray.org...
> Is this the wrong place to post this question?  I figured since I was 
> attaching images to illustrate my problem it'd be best to start here.
>
> Based on my previous understanding of image_maps, and the documentations 
> description, my image isn't coming out as expected...
>
> I have a PNG of my company's logo.  I made the background transparent 
> leaving the white and gray parts.  I created a box object, applied an 
> image_map of the logo.  I expected to see the white and gray portions of 
> the logo extruded along the Z axis from the front of the box to the back. 
> Instead, the image is appearing flat against the front of the box (-z, for 
> the purposes of this scene., flat against the back of the box (+z), with 
> emptyness in the middle... Is it because I'm using alpha channel 
> transparency?  Am I doing something dumb?  Or do I just STILL (after 10 
> years since my rsocp) still not have a grasp on the basics???  I've tried 
> things like scaling the texture along the z axis, making the box hollow, 
> then not hollow, then using interior_texutre... none of these I expected 
> to work, but...
>
> I'm attaching 2 renders, jpg, cropped to make smaller files, and the full 
> .png image I'm using as my image map.
>
> The code:
>
> // An area light (creates soft shadows)
> // WARNING: This special light can significantly slow down rendering 
> times!
> light_source {
>  0*x                 // light's position (translated below)
>  color rgb 1.0       // light's color
>  area_light
>  <20, 0, 0> <0, 0, 20> // lights spread out across this distance (x * z)
>  4, 4                // total number of lights in grid (4x*4z = 16 lights)
>  adaptive 0          // 0,1,2,3...
>  jitter              // adds random softening of light
>  //circular            // make the shape of the light circular
>  //orient              // orient light
>  translate <40, 40, -40>   // <x y z> position of light
> }
>
>
> plane {
>  y,
>  0.0
>  hollow on
>  material {
>        texture {
>                pigment {
>                        color rgb <1.00, 0.95, 0.90>
>                        }
>        }
>  }
>  finish {
>        specular 1
>        reflection 0.3
>        crand 0.02
>        diffuse 0.5
>  }
> }
>
> box {
>        < 0.00,  0.00001,   0.05>  // one corner position <X1 Y1 Z1>
>        < 5.76,  4.08,     -0.05>  // other corner position <X2 Y2 Z2>
>        material {
>                texture {
>                        pigment {
>                                image_map {
>                                        png "dg.png"
>                                        once
>                                }
>                                scale <5.76, 4.08, 1>
>                        }
>                }
>        }
> }
>
>
> Any thoughts???
> Thanks!
> -Dayv
>
>

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