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Hi,
I'm preparing to add next pre-processing option to SpecFlare, with probably
would be DOF.
What are the exualations for
1) size of circle on 2d picture, created by sphere with radius X that is in
distance D from camera, the formula may be relative.
I quess it's R = (X/D) * const where const depends on camera settings like
angle and image settings like ratio,size?
2) size of circle on 2d picture, create by infinite small sphere (point)
that is focal-blurred, CD is distance from camera, FD is distance from
focal point ( FD<0 - point is close to camera, FD>0 - is far).
--
#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
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On 21 Aug 2003 07:16:52 -0400, "Rafal 'Raf256' Maj" <spa### [at] raf256 com> wrote:
> Hi,
Hi,
> I'm preparing to add next pre-processing option to SpecFlare, with probably
> would be DOF.
pre- ?
> What are the exualations for
>
> 1) size of circle on 2d picture, created by sphere with radius X that is in
> distance D from camera, the formula may be relative.
Why do you think it is a circle ?
> 2) size of circle on 2d picture, create by infinite small sphere (point)
I'm sure this one is still infinite small after projection onto plane ;-)
If you are looking for effect like
http://www.ksp.sk/~dushan/dipl/docs/megapov.07/megapov.html#PP_Focal then you
can look into old MegaPOV... sources.
ABX
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