"Slime" <fak### [at] emailaddress> schreef in bericht
news:422d4c37$1@news.povray.org...
> Big improvement!

thanks :)

> How exactly do you use AOI to create that effect? What sort
> of surface is the texture on?

I tried different things: one big shape with a texture_map, a couple of
blobs with different textures, a couple of merge's of spheres with different
textures and some union's of spheres with different texture.  Apparently the
overlapping surfaces you get with union instead of merge are vital to create
a believable gas-effect.

for the texture: see my reply to Stefan :)

cu!
-- 
ZK AKA Gaeriel
http://www.povplace.be.tf
"If we ain't outta here in ten minutes, we won't need no rocket to fly
through space."

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"jaime" <jai### [at] ignoranciaorg> schreef in bericht
news:422d6d2f@news.povray.org...
> Zeger Knaepen wrote:
> > slightly better shape, and a better background :)
> > but it took 10 minutes to trace this time
>
>    Almost AWESOME ROLEX quality... I only miss the explosion lighting
> the mountains, but that would need some magic.

well, it actually should be possible... the lighting shouldn't be as
detailed as the mountains really are, so a simplistic model of the
mountains, textured with the background-image, could be used to simulate
lighting.

The only real problem is the shadow of the smoke and dust.  The whole
explosion has a no_shadow modifier, because otherwise it renders about 100
times slower :-/
I might be able to fake the shadow too...

>    I second Skip and Slime requests for the explanation: it should be
> really interesting to read...

Once it's animatable, I'll post the source :)

cu!
-- 
ZK AKA Gaeriel
http://www.povplace.be.tf
"The ships hang in the air in exactly the same way that bricks don't."

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"Christoph Hormann" <chr### [at] gmxde> schreef in bericht
news:d0jrvg$2nn$1@chho.imagico.de...
> Zeger Knaepen wrote:
> > slightly better shape, and a better background :)
> > but it took 10 minutes to trace this time
>
> There is something wrong with the background - it is quite dark although
> it seems to be a sunny day.

I had to darken it, or the explosion would have been too bright :p

> The explosion now is quite bright (which
> probably is realistic but i lack the first hand experience here ;-))

I think it's still not bright enough to be realistic :)

> So you would expect to see:
>
> - the shadow of the explosion cast by the sun

working on that :)

> - the light of the explosion cast on the surrounding.

should be possible, like I explained in reply to jaime :)

cu!
-- 
ZK AKA Gaeriel
http://www.povplace.be.tf
"Train you will I. Train you I will. Yes! Step one: touch your tongue to
mine."

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"Rene Bui" <ren### [at] freefr> schreef in bericht
news:web.422d77959e24cecb1186d1c30@news.povray.org...
> Very good indeed.

thanks! :)

> But a 'bit' too small for a nuclear explosion ! normally, no more
mountains
> and no more earth..

yes, but it's just beginning! wait a couple of seconds, and, well, you'll
never have to wait again :p

> >Almost AWESOME ROLEX quality... I only miss the explosion lighting
> >the mountains, but that would need some magic.
> agree

about the lighting part or the magic part? :)

cu!
-- 
ZK AKA Gaeriel
http://www.povplace.be.tf
"How will we find this button, sir?"

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"Rafal Maj Raf256" <spa### [at] raf256com> schreef in bericht
news:1737603.GOMX6Qxvpa@raf256com...
> Zeger Knaepen wrote:
>
> > slightly better shape, and a better background :)
> > but it took 10 minutes to trace this time
>
> Very photo-like, I would only change a bit shape of the "top"

yes, I'm not totally happy with it myself, but I'm not sure what's wrong :-/

> btw, So, I see that topic of Americans attacking Iraq is popular in p.b.i
> recently ;)

:) wasn't really thinking of Iraq actually

cu!
-- 
ZK AKA Gaeriel
http://www.povplace.be.tf
"I'm spinning!"

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Zeger Knaepen wrote:
> yes, I'm not totally happy with it myself, but I'm not sure what's wrong :-/
> 

Do you know about the ice cap that forms on top? You might try to
hunt down some descriptions from the Los Alamos experiments.


--Scott David Daniels
Sco### [at] AcmOrg

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Some heat-ripplage on the background would be good, I think it would give it
a little bit of scale. Really, really nice, plus renders in only 10 mins(!)
I need to try aoi for smoke.
Beautiful.

-S

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"Zeger Knaepen" <zeg### [at] studentkuleuvenacbe> wrote in message
news:422d0f41@news.povray.org...
> slightly better shape, and a better background :)
> but it took 10 minutes to trace this time
>
> cu!
> -- 
> ZK AKA Gaeriel
> http://www.povplace.be.tf
> "Luckyly they included a button, right here, that'll blow the entire thing
> up!"
>
>
>

wow! that's an amazing improvement over the last one. My only feeling is
that the top isn't dense enough.

that is one fine looking explosion.

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"stm31415" <sam### [at] cscom> schreef in bericht
news:web.422db5399e24cecbbed9a71a0@news.povray.org...
> Some heat-ripplage on the background would be good, I think it would give
it
> a little bit of scale.

ah, good idea, I'll try that

> Really, really nice,

thank you :)

> plus renders in only 10 mins(!)

with AA and mosaic-preview, without that it renders in about 6'47" at
800x600 on an athlon 1.1GHz running Windows ME :)

cu!
-- 
ZK AKA Gaeriel
http://www.povplace.be.tf
"You think that's air you're breathing now?"

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"Zeger Knaepen" <zeg### [at] studentkuleuvenacbe> wrote in message
news:422d0f41@news.povray.org...
> slightly better shape, and a better background :)
> but it took 10 minutes to trace this time

Nice - looks small, but that's okay. Sort of like the nuke explosion in T3
when arnie throws the damaged power-pack out of the van...

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