 |
|
|
|
|
|
| |
| |
|
|
|
|
| |
| |
|
|
A challenge was given a week or two ago to
produce realistic lightning in povray. I thought I'd have
a go at it.
The pictures below are of a very preliminary version
of my lightning macro.
Comments? Criticisms? Suggestions?
Gail
--
********************************************************************
* gsh### [at] monotix coza * System.dat not found. *
* http://www.rucus.ru.ac.za/~gail/ * Reformat hard drive Y)es O)k *
********************************************************************
* If at first you don't succeed, call it version 1.0 *
********************************************************************
Post a reply to this message
Attachments:
Download 'lightning1.jpg' (10 KB)
Download 'lightning2.jpg' (8 KB)
Download 'lightning3.jpg' (8 KB)
Preview of image 'lightning1.jpg'
Preview of image 'lightning2.jpg'
Preview of image 'lightning3.jpg'
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Gail Shaw wrote:
>
> A challenge was given a week or two ago to
> produce realistic lightning in povray. I thought I'd have
> a go at it.
>
> The pictures below are of a very preliminary version
> of my lightning macro.
>
> Comments? Criticisms? Suggestions?
>
Sure :-)
-The shape looks good, but the decrease in width is too strong IMO (in many
cases, the width/brightness of a lightning stays quite constant during the path)
-It would be good to have the color fading from white to black/darkblue at the
edges. (you seem to use objects for the lightning, so this is probbaly not that
easy)
Christoph
--
Christoph Hormann <chr### [at] gmxde>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
> -It would be good to have the color fading from white to black/darkblue at
the
> edges. (you seem to use objects for the lightning, so this is probbaly not
that
> easy)
Yes it is, with the blob pattern.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Looks fine to me.
Rick
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
> -It would be good to have the color fading from white to black/darkblue at the
> edges. (you seem to use objects for the lightning, so this is probbaly not that
> easy)
Actually I did this for my (well, not only my) IRTC-entry for History.
I just filled the object with a constant media with a very light blue.
At the edges, where there is less media to look through, it looks more
blue than inside the object (which is white because very light blue +
very light blue = white, well, in povray anyway :-)
ZK
http://www.povplace.be.tf
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
"Christoph Hormann" <Chr### [at] schunteretctu-bsde> wrote in
message news:39B8D89E.A28789A8@schunter.etc.tu-bs.de...
|
| -The shape looks good, but the decrease in width is too strong IMO (in
many
| cases, the width/brightness of a lightning stays quite constant during the
path)
| -It would be good to have the color fading from white to black/darkblue at
the
| edges. (you seem to use objects for the lightning, so this is probbaly not
that
| easy)
I concur. This would do well for cloud to cloud lightning but in the case
of cloud to ground it should probably have a near constant main bolt. If a
large diffuse and lower ambient is used the edges will fade but since that's
light source dependant that could not work right. Transparency could be
used along with a strong highlight but once again is too dependant on
external light.
Tony's idea to use media is possibly the best answer I can think of too.
Bob
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Looks promising! Can you make it hit (as well as originate from) a
specific point?
Abe
Gail Shaw wrote:
>
> A challenge was given a week or two ago to
> produce realistic lightning in povray. I thought I'd have
> a go at it.
>
> The pictures below are of a very preliminary version
> of my lightning macro.
>
> Comments? Criticisms? Suggestions?
>
> Gail
> --
> ********************************************************************
> * gsh### [at] monotixcoza * System.dat not found. *
> * http://www.rucus.ru.ac.za/~gail/ * Reformat hard drive Y)es O)k *
> ********************************************************************
> * If at first you don't succeed, call it version 1.0 *
> ********************************************************************
>
> [Image]
>
> [Image]
>
> [Image]
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
The general appearance looks very good to me. Just curious - does your
lightning emit light? I tried adding media to a bolt of lightning to get the
halo effect, but it didn't light up anything around it. (Plus, it looked
like crap.) Maybe adding some bluish-colored fade_power light sources along
the length of the bolt would do the trick, in order to light up the clouds
that the lightning is coming from...
Dave
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Well done, Gail! :)
Grim
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
How about combining this with the new Glow light in MegaPov+ ?
Gail Shaw wrote:
> A challenge was given a week or two ago to
> produce realistic lightning in povray. I thought I'd have
> a go at it.
>
> The pictures below are of a very preliminary version
> of my lightning macro.
>
> Comments? Criticisms? Suggestions?
>
> Gail
> --
> ********************************************************************
> * gsh### [at] monotixcoza * System.dat not found. *
> * http://www.rucus.ru.ac.za/~gail/ * Reformat hard drive Y)es O)k *
> ********************************************************************
> * If at first you don't succeed, call it version 1.0 *
> ********************************************************************
>
> [Image]
>
> [Image]
>
> [Image]
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
