"Ger" <No.### [at] ThankYou> wrote in message news:443bdebe@news.povray.org...
> Trevor G Quayle wrote:
>
>> Ger <No.### [at] ThankYou> wrote:
>>> Is it possible to read the color of a certain point in an image_map?
>>>
>>> Iow, I have an image_map mapped onto a box and I would like to know what
>>> the color is when I do a trace() from a point over the box
>>>
>>>
>>> --
>>> Ger
>>
>> Make a function of the image map and evaluate the function.
>>
>> #local PIMAGE = function {
>> pigment{image_map {IMAGEMAP}
>>  TRANSFORM //scale, translate and rotate to appropriate postion
>> }
>>
>> #declare COL=PIMAGE(x,y,z);
>>
>>
>> -tgq
>
> Works. Thanks.
> -- 
> Ger

Hi Ger,

You may also wish to take a look at the 'eval_pigment' predefined function 
as a possible alternative

Regards,
Chris B.

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