"Rafal 'Raf256' Maj" <raf### [at] raf256com> wrote in
news:Xns### [at] 204213191226 


Hi,
after some tests with this magnifing glass, I think I found a bug in 
dispersion + photons + filter objects.
My image looks different in mosaic preview then in single-pass render !

The final mosaic step (1x1) is identical to single-pass, BUT mosaic steps 
(2x2, 4x4, etc) - look different. IMHO 2x2 looks correct, while 1x1 image 
have bug.

The problem is 'clearness' (filter) of glass. It sometimes look like glass, 
sometimes like plastic with very low filter like .2

2x2 mosaic, dispersion 1.3  - nice glass (OK)
1x1 mosaic, dispersion 1.3  - plastic glass (wrong) 
2x2 mosaic, no ispersion    - nice glass (OK)
1x1 mosaic, no dispersion   - nice glass (OK)

look at image posted to .b.i (under Magnyfing glass subject) it's upper 
half is with 1x1 mosaic (plastic-glass) and lower part is 2x2 mosaic (nice 
glass). 
same image: http:\\www.raf256.com\b\a4_pre.jpg

-- 
#macro g(U,V)(.4*abs(sin(9*sqrt(pow(x-U,2)+pow(y-V,2))))*pow(1-min(1,(sqrt(
pow(x-U,2)+pow(y-V,2))*.3)),2)+.9)#end#macro p(c)#if(c>1)#local l=mod(c,100
);g(2*div(l,10)-8,2*mod(l,10)-8)*p(div(c,100))#else 1#end#end light_source{
y 2}sphere{z*20 9pigment{function{p(26252423)*p(36455644)*p(66656463)}}}//M

Post a reply to this message