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in news:5c442a26$1@news.povray.org Thomas de Groot wrote:
> However, Bald Eagle's
>
> function {
> NormalMap(x,y,z).red +
> NormalMap(x,y,z).green +
> NormalMap(x,y,z).blue
> } 1.5
>
> gives a much better result and thus may be preferred.
>
.gray and .hf = 0.3 * red + 0.59 * green + 0.11 * blue, so yes there's
quite a difference to be expected.
ingo
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