HF_Res_X and HF_Res_Y are place holders for variable values.
replace them with a resolution

eg. 256, 256 or 512, 512

A.D.B.


SharkD wrote:
> Anthony D. Baye wrote:
>> Absolutely
>>
>> You can turn your pigment into a function
>>
>> #declare myPigFn =
>> function {
>>     pigment { my_pigment ]
>>     }
>
>> and pass it directly to the height field as a function
>>
>> height_field {
>>     function HF_Res_X, HF_Res_Z { myPigFn(x,y,z).red * vScale }
>>     water_level n.n
>>     }
>>
>> ".red" specifies that the height data follows the intensity of the red 
>> channel.  Alternatively you may use the blue or green channels or any 
>> of the direction vectors (x,y,z)
>>
>> Numerical functions can also be used, but do not require the vector 
>> component.
>>
>> remember that height_fields occupy a unit cube from 0,0,0 to 1,1,1.
>>
>> Regards,
>>
>> A.D.B.
> 
> I get the error:
> 
> "Parse Error: Expected 'numeric expression', undeclared identifier 
> 'HF_Res_X' found instead"
> 
> -Mike

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