Ah, I see.  Thanks for clearing this up, Ken.

I always use 8 bit grayscale images for heightfields, so I wasn't really
sure.

-Ian

> Actually it takes the color itself. From a pallet of 256 for an 8 bit
image
> black would be zero height and 255 would be a height of one. With 16 bit
> image as input you get 65k differnt values of height between zero and one.
> You are correct however when you say that the color of the image used to
> create the height field is not automaticaly applied to the HF when it is
> created. The HF still needs a standard pigment statment as do all objects
> in a Pov scene.
>
> --
> Ken Tyler
>
> See my 850+ Povray and 3D Rendering and Raytracing Links at:
> http://home.pacbell.net/tylereng/index.html

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