Philippe Debar wrote in message <395cb293$1@news.povray.org>...
>So, could we use a #macro mapOldBump(mapValue) that could use the exactly
>correct function to switch to different bumps' incarnation. Can anyone with
>access to source do this?


The procedure for converting a blend map:
Divide each value by 2 and add 0.25

Mark

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