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From: Rune
Subject: Magic Lamp 2 (particle system)
Date: 21 Feb 2002 12:49:47
Message: <3c75333b@news.povray.org>
In this animation I've tried to use textured discs instead of media glows. I
personally think it enhances the magic feel - what do you think? Of course
the disadvantage is that it doesn't work in reflections and refractions...

By the way, two of the animations on my website "Wild Hose" and "Flow" have
been updated with more realistic textures. They had a solid blue texture
before. They're quite a bit down the page here:
http://rsj.mobilixnet.dk/3d/anims/anims.html

Rune
--
3D images and anims, include files, tutorials and more:
Rune's World:    http://rsj.mobilixnet.dk (updated Feb 16)
POV-Ray Users:   http://rsj.mobilixnet.dk/povrayusers/
POV-Ray Webring: http://webring.povray.co.uk


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Attachments:
Download 'lamp2.mpg' (529 KB)

From: Stephen Bell
Subject: Re: Magic Lamp 2 (particle system)
Date: 21 Feb 2002 14:07:34
Message: <3c754576@news.povray.org>
I think you're right.  The textured disks look better, mostly because of
their starred appearance.  Is there any way to have the movement of the lamp
affect the movement of the particles?  What I mean is, if the lamp is moving
to the right, and the particle is shot off to the right, does it have
increased speed compared to a particle shot off to the left?  I'm not sure
if I'm making myself clear, but it looks as though the particles speed is
independent of the lamp, and particles may even go back through the lamp if
the lamp moves fast enough in any direction.  I hope that made sense.  Nice
animation.

Stephen

"Rune" <run### [at] mobilixnetdk> wrote in message
news:3c75333b@news.povray.org...
> In this animation I've tried to use textured discs instead of media glows.
I
> personally think it enhances the magic feel - what do you think? Of course
> the disadvantage is that it doesn't work in reflections and refractions...
>
> By the way, two of the animations on my website "Wild Hose" and "Flow"
have
> been updated with more realistic textures. They had a solid blue texture
> before. They're quite a bit down the page here:
> http://rsj.mobilixnet.dk/3d/anims/anims.html
>
> Rune
> --
> 3D images and anims, include files, tutorials and more:
> Rune's World:    http://rsj.mobilixnet.dk (updated Feb 16)
> POV-Ray Users:   http://rsj.mobilixnet.dk/povrayusers/
> POV-Ray Webring: http://webring.povray.co.uk
>
>
>


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From: Tony[B]
Subject: Re: Magic Lamp 2 (particle system)
Date: 21 Feb 2002 14:58:56
Message: <3c755180@news.povray.org>
Yes, better. It would be nice if it only emitted glows from the side
opposite to the direction of movement of the pot. Then it would look like
jets or spurts of magic dust. :)


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From: Mark James Lewin
Subject: Re: Magic Lamp 2 (particle system)
Date: 21 Feb 2002 16:12:47
Message: <3C75623D.F0B396E2@yahoo.com.au>
I consider this perfect! Congrats Rune!

MJL

--
light_source{9*(y#macro A(H,B,R,T)prism{0,1H+4,0u*9,9v*9,0#local I=1;#while(I<H)
#local V=asc(substr(B,I,1))-33;<div(V,10)mod(V,10)>#local I=I+1;#end pigment{rgb
y}rotate-<90,R>translate-T}#end-z)rgb 9}A(14",6;MWmhryXN3,"60<15,0,8>)box{-99(x+
z)*99pigment{rgb 1}}fog{distance 11}camera{location(y-z)*25look_at 0}A(8"6hiAG=6
"-60x*-10)A(16"/.@VZno=<PLA89/"0x*5) // MJL


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From: Apache
Subject: Re: Magic Lamp 2 (particle system)
Date: 22 Feb 2002 00:41:01
Message: <3c75d9ed$1@news.povray.org>
I think that things like glows and lens flares will look at their best if
they're done with some kind of post processing.


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From: Rune
Subject: Re: Magic Lamp 2 (particle system)
Date: 22 Feb 2002 02:02:17
Message: <3c75ecf9@news.povray.org>
"Stephen Bell" wrote:
> Is there any way to have the movement of the lamp
> affect the movement of the particles?

I have support for movement but not for rotation, so I could get the
particles to be affected by the speed of the lamp, but I couldn't make them
spin when the lamp spins. However, I have chosen not to use it in this
animation, as I think it won't look very good. I can do a test though...

Rune
--
3D images and anims, include files, tutorials and more:
Rune's World:    http://rsj.mobilixnet.dk (updated Feb 16)
POV-Ray Users:   http://rsj.mobilixnet.dk/povrayusers/
POV-Ray Webring: http://webring.povray.co.uk


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From: Rune
Subject: Re: Magic Lamp 2 (particle system)
Date: 22 Feb 2002 02:02:22
Message: <3c75ecfe@news.povray.org>
"Tony[B]" wrote:
> Yes, better. It would be nice if it only emitted glows from
> the side opposite to the direction of movement of the pot.
> Then it would look like jets or spurts of magic dust. :)

But it's supposed to look like the whole lamp is emitting magic dust, not
just one side. However, when the lamp moves fast it automatically gets
almost the effect you describe...

Rune
--
3D images and anims, include files, tutorials and more:
Rune's World:    http://rsj.mobilixnet.dk (updated Feb 16)
POV-Ray Users:   http://rsj.mobilixnet.dk/povrayusers/
POV-Ray Webring: http://webring.povray.co.uk


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From: Rune
Subject: Re: Magic Lamp 2 (particle system)
Date: 22 Feb 2002 02:02:23
Message: <3c75ecff@news.povray.org>
"Mark James Lewin" wrote:
> I consider this perfect! Congrats Rune!

Thanks! :)

I'll probably do a few more tests, but I may not succeed in improving it
further.

Rune
--
3D images and anims, include files, tutorials and more:
Rune's World:    http://rsj.mobilixnet.dk (updated Feb 16)
POV-Ray Users:   http://rsj.mobilixnet.dk/povrayusers/
POV-Ray Webring: http://webring.povray.co.uk


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From: Rune
Subject: Re: Magic Lamp 2 (particle system)
Date: 22 Feb 2002 02:02:24
Message: <3c75ed00@news.povray.org>
"Apache" wrote:
> I think that things like glows and lens flares will look at
> their best if they're done with some kind of post processing.

Hmm, why?

I first had the glows much brighter, and the glows themselves looked better
that way, but it was very difficult to see the lamp itself for all the
glows, so I had to dim them.

Anyway, I don't see why the glows would look any better if post processed,
and it would be rather difficult to get as good antialiasing.

Rune
--
3D images and anims, include files, tutorials and more:
Rune's World:    http://rsj.mobilixnet.dk (updated Feb 16)
POV-Ray Users:   http://rsj.mobilixnet.dk/povrayusers/
POV-Ray Webring: http://webring.povray.co.uk


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From: Tim Nikias
Subject: Re: Magic Lamp 2 (particle system)
Date: 22 Feb 2002 14:12:55
Message: <3C76983D.1AD3BCD8@gmx.de>
I'm back for weekend, so I'd thought I'd comment on
the animation as well...

I do agree with others, the motion of the lamp looks very good and
smooth. I also agree that discs and media don't look as nice as
glows do (though I personally never used glows, just saw them
in example-pics of MegaPOV and your animations).

How did you actually calculate the positions for the
particles? Did you use trace on the object (which I
suppose is how you did it)?

My system is very much capable of doing just such
an animation, because it doesn't seem like your
particles are bouncing off the walls or the lamp again...

I have used some spare hours these week during
my seminar to read through my printed version of my
particle-system, and I've found some stuff that will
be changed, some that will be added, and some that
will be removed, but I expect my system to be out
earlier than yours. Maybe you'd have a look at it then?

--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html


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