Ger wrote:

> I use an external program to create png files that contain height data. 
> The difference between adjacent points is generally very little but as 
> povray renders the height fields it shows very large jumps in height.
 >
> is it
> 
> height of pixel = (R x 256 x 256) + (G * 256) + B?

I *think* POV-Ray only supports 16 bit data, and that the color hack
is not for higher bit depth but for 16 bit support back when no native
16-bit formats where suported. For 16-bit you can use a single channel
(gray) 16-bit PNG file if supported by the software.

Also, I'm not aware that this color-coding is in any way standardized,
so I wonder what kind of tool creates color HF data (unless intended for
POV, but then it should have worked).

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