"Rune" wrote:
> How does it look when reflected/refracted in a non-planar surface,
> such as a sphere?

Oops, never mind that one.

> How does it look just when it is moving behind an object?

Or that one...

I guess I didn't pay enough attention...

Rune
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In article <39b25901$1@news.povray.org>, "Rune" 
<run### [at] inamecom> wrote:

> Now that you've shown us the basics, try showing us how they work in 
> certain specific situations.

I thought that was what I was doing...


> How does it look when reflected/refracted in a non-planar surface, 
> such as a sphere?

Most/all of the scenes I have posted so far feature a reflective sphere. 
I haven't tested refraction yet, but they should refract just like 
anything else.


> How does it look when located extremely close to a surface? (Is only 
> part of the glow visible, as it should?)

If nothing is between the glow and the camera, the whole thing is 
visible. Proximity to a surface does not and should not affect it, since 
it simulates atmospheric scattering, not a ball of glowing gases.


> How does it look just when it is moving behind an object?

I have posted an image of this...the object blocks the glow which is 
behind it, and the glow extends around it's edges.


> As other mentioned, how will it look with radiosity?

Since it is visible, it will illuminate surfaces with radiosity, but 
since it is not a surface, it will look the same whether you use 
radiosity or not. I don't know what else you want to know.


> ...media? ...fog?

The effect of the glow is simply added to the image, could you be more 
specific about your questions? BTW, the demo scenes for POV-AFX usually 
use fog, you can look at them to see the combined effect.

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

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In article <39b1fce6@news.povray.org>, "GrimDude" 
<vos### [at] yahoocom> wrote:

> Stop immediately, whatever you are doing, and make this thing available. 
> :)

I suspect you don't *really* want me to do that, since I am currently 
working on documentation and demo scenes for this patch. :-)
Source and a Mac version may be available later today or tomorrow, a 
Windows version will probably follow shortly after.

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

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You're the man! :)

Grim
"Chris Huff" <chr### [at] maccom> wrote in message
news:chrishuff-E73F0F.10560403092000@news.povray.org...
> Source and a Mac version may be available later today or tomorrow, a
> Windows version will probably follow shortly after.

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"Chris Huff" <chr### [at] maccom> wrote in message
news:chrishuff-9F7E35.10531203092000@news.povray.org...
|
| > How does it look just when it is moving behind an object?
|
| I have posted an image of this...the object blocks the glow which is
| behind it, and the glow extends around it's edges.

Sorry if I missed this before, is there a possibility of it winking out
instead?  A on/off type of situation based on a arbitrary size supplied to
it?
I guess not, since that would be a different kind of thing.

Bob

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"Chris Huff" wrote:
> I haven't tested refraction yet, but they should refract just
> like anything else.

Nice.

> > How does it look when located extremely close to a surface?
> > (Is only part of the glow visible, as it should?)
>
> If nothing is between the glow and the camera, the whole thing
> is visible. Proximity to a surface does not and should not affect
> it, since it simulates atmospheric scattering, not a ball of
> glowing gases.

Oh, I thought it was something with the air around the light being
illuminated, but then, I don't know much about atmospheric scattering...

> could you be more specific about your questions?

No, the information you have provided is sufficient. Thank you!

Rune
--
\ Include files, tutorials, 3D images, raytracing jokes,
/ The POV Desktop Theme, and The POV-Ray Logo Contest can
\ all be found at http://rsj.mobilixnet.dk (updated July 23)
/ Also visit http://www.povrayusers.org

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In article <39b2a43b$1@news.povray.org>, "Bob Hughes" 
<per### [at] aolcom?subject=PoV-News:> wrote:

> Sorry if I missed this before, is there a possibility of it winking out
> instead?  A on/off type of situation based on a arbitrary size supplied to
> it?
> I guess not, since that would be a different kind of thing.

That would be more of a lens flare effect. It should be possible to do 
though, just trace a ray at the glow from the camera position, to check 
for objects between the glow and the camera. It would take some work to 
figure out how much the flare should show, since the objects may be 
transparent, but it should be possible. And it shouldn't slow the 
rendering down too much, since the visibility checking could be done 
before the rendering. You could do something similar in POV-Script, 
using the trace() function to disable a glow if something passes in 
front of it.

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

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In article <39B1FDA5.DE798695@schunter.etc.tu-bs.de>, 
chr### [at] gmxde wrote:

> When christmas comes, we will probably start decorating *everything* 
> with those glows :-)

Hows this? I didn't have time to write a coniferous tree macro, or even 
a good deciduous tree macro, and I need to tweak the color calculations 
of the individual glows to be more vivid, but it looks pretty neat. No 
light sources, just glows.


> I would really like to see how they affect radiosity.  

I will have to do some experiments with this...

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

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Attachments:
Download 'tree.jpg' (23 KB)

Preview of image 'tree.jpg'

Tony[B]'s eyes pop out and he begins foaming at the mouth and faints... and
resumes consiousness after a few hours, wipes his mouth and tries to type
something coherent...

That looks so darn cool. I see a whole new wave of images based on glows
coming soon. Let's see, what will I do? Oooh, oohh! Monsters with glows in
their eyes... yes, yes. That will be it. :)

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Now you're cooking, Chris! That is ace! I think even I can conjure up
something with this ingredient!  :o)


  ~Steve~


"Chris Huff" <chr### [at] maccom> wrote in message
news:chrishuff-A1713D.17065303092000@news.povray.org...
> In article <39B1FDA5.DE798695@schunter.etc.tu-bs.de>,
> chr### [at] gmxde wrote:
>
> > When christmas comes, we will probably start decorating *everything*
> > with those glows :-)
>
> Hows this? I didn't have time to write a coniferous tree macro, or even
> a good deciduous tree macro, and I need to tweak the color calculations
> of the individual glows to be more vivid, but it looks pretty neat. No
> light sources, just glows.
>
>
> > I would really like to see how they affect radiosity.
>
> I will have to do some experiments with this...
>
> --
> Christopher James Huff
> Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
> TAG: chr### [at] tagpovrayorg, http://tag.povray.org/
>
> <><
>
>

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