"Tek" <tek### [at] evilsuperbraincom> wrote in message
news:43dbaf21@news.povray.org...
> Well I've been putting a lot of work into the volcano, though I've hardly
> touched anything else in the scene.

Very nice.

I'll echo a couple of others. Scrap the underwater and just focus on above.
At the moment it's a split image with two disconnected points of focus.

Some ice on the water, steam where the lava hits the ocean, glow around the
top and it'll look very nice.

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The bit underwater is just a placeholder! if you compare it to the first WIP 
you'll see it hasn't changed, honestly it's just a bunch of spheres I threw 
down there to remind me to come back later and put something in. I should 
probably have mentioned that!

The other suggestions are good though, I'm going to try to do all of them.

-- 
Tek
http://evilsuperbrain.com


"Ger" <No.### [at] ThankYou> wrote in message news:43dbfbb9@news.povray.org...
> Tek wrote:
>
>> Well I've been putting a lot of work into the volcano, though I've hardly
>> touched anything else in the scene. As you can see I've incorporated a 
>> lot
>> of the great suggestions from folks round here, thanks everyone! The only
>> problems I have with the volcano now are: it's still too dark - I didn't
>> realise until after this lengthy render, and there's lava touching snow 
>> in
>> the foreground which is obviously complete nonsense! Next I'm going to
>> work on the smoke and under-sea area.
>>
>> My favourite bit in this is the lava rivers, which work using a really
>> simplistic particle system that basically rolls a particle down the
>> volcano leaving a trail of blobs behind it. Slight adjustments to the
>> start position and random seed make it take radically different paths,
>> which actually looks pretty realistic.
>>
>> Anyway I thought I'd post this for further comments, and so you can see
>> how much better it's got!
>>
>
> Coming along neatly, but ( sorry, there's always one of those ) :)
>
> 4 things above the water that caught my eye
> No distinct column of smoke/dust/ash over the vent
> The boulders/rocks that come flying out of the volcano all are(look like)
> the same size.
> No smoke/dust plumes where they hit the ground
> No steam where the lava touches the water
>
> under water
>
> The bulging lava doesn't seem connected to the volcano
>
> -- 
> Ger

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I think I explained all this in an earlier post, though I should have said 
when I posted this picture, allow me to reiterate:

1/ The mountains and undersea areas are just placeholders (cones and 
spheres) until I get round to working on them, frankly I'm amazed people 
keep commenting on them! To me they look so obviously unfinished.

2/ That isn't a drop of lava underwater, it's one of those underwater lava 
vents where lava's escaping through a small crack underwater and solidifying 
on the outside almost immediately, but the pressure of the lava keeps 
cracking the solid surface so more of it can break through. This is why it's 
so far from the volcano, it hasn't fallen there it's come up from 
underground.

-- 
Tek
http://evilsuperbrain.com

"Eero Ahonen" <aer### [at] removethiszbxtnetinvalid> wrote in message 
news:43dcaf24$1@news.povray.org...
> Tek wrote:
>>
>> Anyway I thought I'd post this for further comments, and so you can see 
>> how
>> much better it's got!
>>
>
> Ok, forget my earlier comments partly. I'm still disturbed about that
> there's _one_ glowing lava drop underwater, but not another even near.
> And the mountains at background are still exported from Egypt :). All
> other things I mentioned you seem to have maintained with honour.
>
> But maybe there should be steam (and boiling?), where the lava river
> gets into the water?
>
> -- 
> Eero "Aero" Ahonen
>   http://www.zbxt.net
>      aer### [at] removethiszbxtnetinvalid

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I'm going to keep disagreeing with people about the underwater area until I 
get round to working on it. Personally I think it's the most important part 
of the whole image because it shows the cold beating the lava, which 
balances out what's happening above.

I guess I should work on that next so people can see what it's supposed to 
look like and see if they still disagree with me :)

-- 
Tek
http://evilsuperbrain.com

"Gail Shaw" <gshaw AT sentechsa com> wrote in message 
news:43dccf35@news.povray.org...
>
> "Tek" <tek### [at] evilsuperbraincom> wrote in message
> news:43dbaf21@news.povray.org...
>> Well I've been putting a lot of work into the volcano, though I've hardly
>> touched anything else in the scene.
>
> Very nice.
>
> I'll echo a couple of others. Scrap the underwater and just focus on 
> above.
> At the moment it's a split image with two disconnected points of focus.
>
> Some ice on the water, steam where the lava hits the ocean, glow around 
> the
> top and it'll look very nice.
>
>

Post a reply to this message

"Tek" <tek### [at] evilsuperbraincom> wrote in message 
news:43dd383a@news.povray.org...
> I'm going to keep disagreeing with people about the underwater area until 
> I get round to working on it. Personally I think it's the most important 
> part of the whole image because it shows the cold beating the lava, which 
> balances out what's happening above.

Tek,
Expect to see a lot of boiling at the undersea vent.
For form google 'black smoker' - those chimneys are heaps of fun...  and a 
modelling challenge.
http://images.google.com/images?q=black+smoker&hl=en&btnG=Search+Images
D

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news:43dd5795$1@news.povray.org...
>
> Tek,
> Expect to see a lot of boiling at the undersea vent.
> For form google 'black smoker' - those chimneys are heaps of fun...  and a
> modelling challenge.
> http://images.google.com/images?q=black+smoker&hl=en&btnG=Search+Images
> D
>

I think Tek intents that kind of cushion lava
http://satftp.soest.hawaii.edu/space/hawaii/vfts/pele/page.s2.html

As you can see water pressure and temperature conditions prevents water to
boil further than 1 inch away the  forming crust.
Steam condensates and bubbles shrink as soon as formed.

Marc

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It's looking real good...

Quick thought:  The lava will cool as goes downhill.  That should make it
change from yellow to red and from bright to dim as it gets farther away
from the heat source.

Jon

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Tek wrote:
>
> 1/ The mountains and undersea areas are just placeholders (cones and 
> spheres) until I get round to working on them, frankly I'm amazed people 
> keep commenting on them! To me they look so obviously unfinished.

I thought it's not even near of finishing, but I guessed that you'd want
visions of the image (I would've). My apologies, if I was so wrong.

> 2/ That isn't a drop of lava underwater, it's one of those underwater lava 
> vents where lava's escaping through a small crack underwater and solidifying 
> on the outside almost immediately, but the pressure of the lava keeps 
> cracking the solid surface so more of it can break through. This is why it's 
> so far from the volcano, it hasn't fallen there it's come up from 
> underground.

Ah. For my eye, it looked like a stone for my eye. But after all, I
didn't even realize that those cracks exist (thou it's logical, while
thinking it now).

-- 
Eero "Aero" Ahonen
   http://www.zbxt.net
      aer### [at] removethiszbxtnetinvalid

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Marc Jacquier wrote:
>
> I think Tek intents that kind of cushion lava
> http://satftp.soest.hawaii.edu/space/hawaii/vfts/pele/page.s2.html
>

Nice! Now, even I can see (and understand) what's the underwater part
about :).

-- 
Eero "Aero" Ahonen
   http://www.zbxt.net
      aer### [at] removethiszbxtnetinvalid

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news:43ddf200@news.povray.org...
> I think Tek intents that kind of cushion lava
Pillow should be better than cushion.

Marc

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