POV-Ray : Newsgroups : povray.binaries.images : Generated idea Server Time
29 Apr 2024 11:04:46 EDT (-0400)
  Generated idea (Message 11 to 12 of 12)  
<<< Previous 10 Messages Goto Initial 10 Messages
From: alphaQuad
Subject: Re: Generated idea
Date: 28 Sep 2008 02:00:05
Message: <web.48df1d2f1ad7080ef9a454800@news.povray.org>
"Cousin Ricky" <ric### [at] yahoocom> wrote:
> "alphaQuad" <alp### [at] earthlinknet> wrote:
> > F1 on "absorption"
> > media { absorption Color ... }
> > goes to :
> > SCATTERING:
> >     scattering {
> >         Type, COLOR [ eccentricity Value ] [ extinction Value ]
> >     }
> >
> > scattering was used???? type?
> > isotropic, Mie (haze and murky atmosphere), Rayleigh, and Henyey-Greenstein
>
> According to Christoff Hormann, the Mie types are best for water.  I used
> scattering { 3, <0.004, 0.012, 0.020> }.  I also added:
>
>    method 3
>    intervals 1
>    samples 3, 3
>    aa_level 2
>
> to speed things up, but be warned that in some scenes there will be a penalty in
> quality.  Please find attached my source code.
>
> Have a look at Christoff's tutorial:
>
>    http://www.imagico.de/pov/water/index.html


You are like an Archetype, that from which all other molds can/should be made.

I read your stuff and think, I couldn't even talk to this guy cause I wouldn't
be able to keep up, thinks like 10 times my meager capacity. ouch!

Just love it when this god posts!!!!!!!!!!!!!!!!!!!!!!!!!

oh and if anyone has an answer, trying to set AA with focal blur and:

Cleanup Parse Warning: Focal blur is used. Standard antialiasing is switched
off.

this is because .... ?
never together or there are some other requirements?

Love the blur but there are choppy pixels in the focal area.


; ppm (portable pixel map)
+fp
Antialias=On

Sampling_Method=1
; default 1

Antialias_Threshold=0.3
; If the color of a pixel differs from its neighbors (to the left or above)
; by at least the set threshold value then the pixel is super-sampled by
shooting a given,
; fixed number of additional rays. The default threshold is 0.3

Antialias_Depth=2
; = 4 samples per pix
; default 3 = 9 or 81 +am1 or 2


Post a reply to this message

From: alphaQuad
Subject: Re: Generated idea
Date: 28 Sep 2008 13:00:01
Message: <web.48dfb75e1ad7080e93b78d90@news.povray.org>
"Cousin Ricky" <ric### [at] yahoocom> wrote:
>
> Have a look at Christoff's tutorial:
>
>    http://www.imagico.de/pov/water/index.html



I remember that now, thought it was so cool, just had to put something in it.
 <web.472a98edd71e2287efbab78f0@news.povray.org>
Wasnt seeing into the water as much as I hoped, think I see why now.

A crown of heightfield wav generation.

A macro that is a function, redefined as function that HF can use:
#declare fn_Water = function {
  Waves(pi/2, 5.2, tclock*7, 700) * 0.024 + 0.5
}

But I am boggled with:

          #if ( nWaves < MAX_WAVES )
            +
          #end

plus what again?!? out of logic on that one.


Post a reply to this message

<<< Previous 10 Messages Goto Initial 10 Messages

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.