Here are my latest attempts at reflection blurring.
All use AA method 2, threshold 0.0, recursion level 3

left to right, top to bottom:
1) No blurring
2) Horizontal (vertical scratches)
3) Vertical
4) Bi-directional (my first somewhat successful attempt)
5) Isotropic
6) Circular

The bi-directional took me a while to figure out. Averaging horizontal and
vertical wouldn't work (it finally occured to me why) and I finally came up
with a solution (which I won't reveal quite yet, but perhaps some of you out
there already can figure out yourselves). Now to test them all out with
transmission.

-tgq

Post a reply to this message

Attachments:
Download 'Blur.jpg' (319 KB)

Preview of image 'Blur.jpg'

Quite inspiring... I tried to do it myself.  I used to very fine Isosurface
noise and rendered under the same anti-aliasing settings.
--
Skip


Trevor Quayle <Tin### [at] hotmailcom> wrote in message
news:3bcf1fd8@news.povray.org...
> Here are my latest attempts at reflection blurring.
> All use AA method 2, threshold 0.0, recursion level 3
>
> left to right, top to bottom:
> 1) No blurring
> 2) Horizontal (vertical scratches)
> 3) Vertical
> 4) Bi-directional (my first somewhat successful attempt)
> 5) Isotropic
> 6) Circular
>
> The bi-directional took me a while to figure out. Averaging horizontal and
> vertical wouldn't work (it finally occured to me why) and I finally came
up
> with a solution (which I won't reveal quite yet, but perhaps some of you
out
> there already can figure out yourselves). Now to test them all out with
> transmission.
>
> -tgq
>
>
>
>
>

Post a reply to this message

Attachments:
Download 'reflection blur testing1.jpg' (20 KB) Download 'reflection blur testing2.jpg' (22 KB)

Preview of image 'reflection blur testing1.jpg'

Preview of image 'reflection blur testing2.jpg'

> 
> Quite inspiring... I tried to do it myself.  I used to very fine Isosurface
> noise and rendered under the same anti-aliasing settings.

  Well... obviously, the real thing works better... It's not so grainy,
and somewhats make the reflection disapear, wich I expected.

--
Jaime Vives Piqueres

La Persistencia de la Ignorancia
http://www.ignorancia.org/

Post a reply to this message

"Skip Talbot" <sta### [at] uiucedu> wrote in message
news:3bcf45d4@news.povray.org...
>
> Quite inspiring... I tried to do it myself.  I used to very fine
Isosurface
> noise and rendered under the same anti-aliasing settings.
> --
> Skip

Very nice.
That's where I was going next, but the downfall of that is that you are
limited to creating objects with isosurfaces as opposed to just applying the
texture to any object.

-tgq

Post a reply to this message

"Jaime Vives Piqueres" <jai### [at] ignoranciaorg> wrote in message
news:3BCF473E.9CA6E6F7@ignorancia.org...

> and somewhats make the reflection disapear, wich I expected.
>

Real blurred reflection does make the reflection disappear.

- Nekar


---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.282 / Virus Database: 150 - Release Date: 2001/09/25

Post a reply to this message

> 
> "Jaime Vives Piqueres" <jai### [at] ignoranciaorg> wrote in message
> news:3BCF473E.9CA6E6F7@ignorancia.org...
> 
> > and somewhats make the reflection disapear, wich I expected.
> >
> 
> Real blurred reflection does make the reflection disappear.

 At least it seems so. That's why sometimes I tough that a "reflection
fading" feature will be useful to simulate that.

--
Jaime Vives Piqueres

La Persistencia de la Ignorancia
http://www.ignorancia.org/

Post a reply to this message

>  At least it seems so. That's why sometimes I tough that
> a "reflection fading" feature will be useful to simulate that.

Isn't that what angle-dependant reflection does?

Post a reply to this message

reflection blurring and reflection fading are not the same thing.  With
blurring, the reflection doesn't need to disappear, it just gets blurred to
obscurity.

-tgq

"Jaime Vives Piqueres" <jai### [at] ignoranciaorg> wrote in message
news:3BCFCD03.3C287196@ignorancia.org...

> >
> > "Jaime Vives Piqueres" <jai### [at] ignoranciaorg> wrote in message
> > news:3BCF473E.9CA6E6F7@ignorancia.org...
> >
> > > and somewhats make the reflection disapear, wich I expected.
> > >
> >
> > Real blurred reflection does make the reflection disappear.
>
>  At least it seems so. That's why sometimes I tough that a "reflection
> fading" feature will be useful to simulate that.
>
> --
> Jaime Vives Piqueres
>
> La Persistencia de la Ignorancia
> http://www.ignorancia.org/

Post a reply to this message

> 
> >  At least it seems so. That's why sometimes I tough that
> > a "reflection fading" feature will be useful to simulate that.
> 
> Isn't that what angle-dependant reflection does?

  Not exactly... I mean some sort of reflection dependant on the
distance to the reflected object. Yes, I know it is not realistic, and
I'm not even making a feature request, but I tought it will be useful
for these situations where the blurring causes an effect of disappearing
reflections, saving heavy aa settings. But it is a crazy idea, I don't
really know how it will look...

--
Jaime Vives Piqueres

La Persistencia de la Ignorancia
http://www.ignorancia.org/

Post a reply to this message

Trevor Quayle wrote:
> reflection blurring and reflection fading are not the same
> thing.  With blurring, the reflection doesn't need to disappear,
> it just gets blurred 

So, with all the hype atm being on blurring, how do you do
reflection fading?
-- 
Tim Cook
http://empyrean.scifi-fantasy.com

-----BEGIN GEEK CODE BLOCK-----
Version: 3.12
GFA dpu- s: a?-- C++(++++) U P? L E--- W++(+++)>$
N++ o? K- w(+) O? M-(--) V? PS+(+++) PE(--) Y(--)
PGP-(--) t* 5++>+++++ X+ R* tv+ b++(+++) DI
D++(---) G(++) e*>++ h+ !r--- !y--
------END GEEK CODE BLOCK------

Post a reply to this message