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"Ron Parker" <ron### [at] povray org> wrote in message
news:slr### [at] fwi com...
> On Tue, 19 Feb 2002 15:14:35 -0500, eric wrote:
> > Currently if you are running in sixteen bit mode it creates a banded image.
> > I have tried exporting a 24 bmp and then coverting it to a 16 bit targ but
> > this creates the banding (as i suspected) the best solution is really to
> > have pov export this way.
>
> The banding is an inherent property of 16-bit images. The only way to get
> around it is to use some sort of dithering, but that is not something we want
> to do in POV itself.
>
Maybe adding a granite normal will result in some sort of random dithering.
--
#local X=20*<-2,2,5>;#local K=2*z*X-X;#local R=seed(frame_number);blob{#while(K
.x>X.x)#local N=X+<rand(R)rand(R)1>/3;#local X=(vlength(N-K)<vlength(X-K)?N:2*X
-N);sphere{X,1,1rotate z*90}sphere{X,1,1}#end pigment{rgbt 1}interior{media{
emission<2,4,5>*5}}hollow scale.05}// http://nekar_xenos.tripod.com/metanoia/
sphere_sweep{catmull_rom_spline 6<-8,-8>1<-8,-8>1<-8,8>1<8,-8>1<8,8>1<8,8>1
translate 20*z pigment{gradient z scale 3color_map{[0rgb<0,9,18>][1rgb 0]}}}
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