On 02/04/2018 17:24, Thorsten Froehlich wrote:
> Why don't you use a valid color map with range 0 to 1? - Then you will very> quickly see what happens and find the answer yourself.
Because the clock has ticked, the world has moves on a bit. RTFM has
gone out of favour.
Hints and guidance are better teaching methods.
--
Regards
Stephen