On 1-12-2017 14:52, William F Pokorny wrote:
> On 12/01/2017 03:00 AM, Thomas de Groot wrote:
>> On 30-11-2017 16:02, Stephen wrote:
>>> On 30/11/2017 12:19, Thomas de Groot wrote:
>>>
> ...
>>>>>
>>>>> BTW Do you (or anyone) know how to add a colour tint to a poser 
>>>>> model? Say, give a green or blue tint to a skin tone.
>>>>>
>>>>
>>>> You gave the answer :-)
>>>>
>>>>
>>> I was thinking in terms of doing it in PovRay but it is much easier 
>>> to do it at source.
>>>
>>
>> To do the former, you can use the good old functions provided by Poseray:
>>
>> #macro pigment_multiply(p1,p2)
>> //multiplies two pigments
>> #local PR1 = function {pigment{p1}}
>> #local PR2 = function {pigment{p2}}
>> #local PR_FRed=function (x,y,z) {PR1(x,y,z).red*PR2(x,y,z).red}
>> #local PR_FGrn=function (x,y,z) {PR1(x,y,z).green*PR2(x,y,z).green}
>> #local PR_FBlu=function (x,y,z) {PR1(x,y,z).blue*PR2(x,y,z).blue}
>> average pigment_map{




>> #end
>>
> ...
> 
> FYI. The pigment_multiply macro above can be coded in POV-Ray 3.8 
> somewhat more succinctly as:
> 
> //------------------- 3.8 ------------------------
> //multiplies two pigments
> #macro pigment_multiply(p1,p2)
> #local PR1 = function {pigment{p1}}
> #local PR2 = function {pigment{p2}}
> user_defined {



> }
> #end
> 
> Bill P.
> 


Aaaah! Progress! :-)

Thank you indeed. A good reason (if none other) to download version 3.8.

-- 
Thomas

Post a reply to this message