ok the last blender pic for a while i know it's p.b.i not blender.b.i
but the blender news server is html and kinda sucks hehe this is a
particle effect takes like 15 min to render cuz it has full motion blur
and that's damn fast for the birth of a star hehe :)

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Attachments:
Download 'blast.jpg' (165 KB)

Preview of image 'blast.jpg'

there is an animation comming you wait and see!!!! i'll show you all!!!! (i
actualy hold no grudge it's just for effect)

Noah A wrote:

> ok the last blender pic for a while i know it's p.b.i not blender.b.i
> but the blender news server is html and kinda sucks hehe this is a
> particle effect takes like 15 min to render cuz it has full motion blur
> and that's damn fast for the birth of a star hehe :)
>
>   ------------------------------------------------------------------------
>  [Image]

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MAXy...

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It's a nice pic, but... Why would it form a torus in outer space, shouldn't
everything be nice and spherical? Well I don't really know what I'm talking
about tho

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yer right in theory, however if the object was spinning it would form the disk
due to some nice physics

David Fontaine wrote:

> It's a nice pic, but... Why would it form a torus in outer space, shouldn't
> everything be nice and spherical? Well I don't really know what I'm talking
> about tho
>
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> Homepage: http://www.faricy.net/~davidf/
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> yer right in theory, however if the object was spinning it would form the disk
> due to some nice physics

Yep. I forgot about the "coliding particle spin factor". But sci-fi explosions
should be spherical and they aren't! Hrmph!

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David Fontaine wrote:
> 
> > yer right in theory, however if the object was spinning it would form the disk
> > due to some nice physics
> 
> Yep. I forgot about the "coliding particle spin factor". But sci-fi explosions
> should be spherical and they aren't! Hrmph!

Why ? Assuming an object at rest with a uniform shell, and a way to ignite
the exploives it contained in a uniform manner perhaps it might appear as
a spherical blast. Given that the container may have different thicknesses
and the explosives my ignite non-unifomrly, and the whole container may
not be at rest, then it is safe to assume that you will not get a spherical
detonation.

It's all in the engineering - as a previous employeer of mine was fond of
saying.

-- 
Ken Tyler -  1300+ Povray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/

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> Why ? Assuming an object at rest with a uniform shell, and a way to ignite
> the exploives it contained in a uniform manner perhaps it might appear as
> a spherical blast. Given that the container may have different thicknesses
> and the explosives my ignite non-unifomrly, and the whole container may
> not be at rest, then it is safe to assume that you will not get a spherical
> detonation.

I see. Actually I worded that entirely wrong, I was thinking more along the lines of
Star Trek "collapsing stars". Those should be, right?

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David Fontaine wrote in message <3887E47B.BE646AFB@faricy.net>...
>> Why ? Assuming an object at rest with a uniform shell, and a way to
ignite
>> the exploives it contained in a uniform manner perhaps it might appear as
>> a spherical blast. Given that the container may have different
thicknesses
>> and the explosives my ignite non-unifomrly, and the whole container may
>> not be at rest, then it is safe to assume that you will not get a
spherical
>> detonation.
>
>I see. Actually I worded that entirely wrong, I was thinking more along the
lines of
>Star Trek "collapsing stars". Those should be, right?
>


Nope, stars spin (at different rates for different lattitudes) hence (due to
physics that I have forgotten) the explosion will not be uniform.

Think of ring nebulae caused by collapsing red giants.

Gail
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It's always just unfortunate for those poor souls that they can never figure out
how to escape a toroidal explosion.  The best part of the Wing Commander movie was
due solely to my friend's comment whilst the heroine was desperately trying to
outrace the wavefront of a large explosion:
[groan] "Fly.....  up.    Up!"   "Obviously common sense isn't a requirement for
space fighter pilots."

 - Cyrrin

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