Hi!

Are there some instructions somewhere on converting halo blocks to
interior/media? I'm working with some legacy code at the moment and am not sure
how to go about doing the conversion.

Thanks!

-Mike

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"SharkD" <nomail@nomail> wrote:
> Hi!
>
> Are there some instructions somewhere on converting halo blocks to
> interior/media? I'm working with some legacy code at the moment and am not sure
> how to go about doing the conversion.
>
> Thanks!
>
> -Mike

<474f3e5b$1@news.povray.org>

> "Nobody, and no algorithm or trick can do that.  Halos and media are
> really different beasts.  The best you can do is learn to use media,
> then try to re-create the effect.  That's a classic problem, and this
> was always the only answer, sorry.

> Fabien."

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"Robert McGregor" <rob### [at] mcgregorfineartcom> wrote:
> "SharkD" <nomail@nomail> wrote:
> > Hi!
> >
> > Are there some instructions somewhere on converting halo blocks to
> > interior/media? I'm working with some legacy code at the moment and am not sure
> > how to go about doing the conversion.
> >
> > Thanks!
> >
> > -Mike
>
> <474f3e5b$1@news.povray.org>
>
> > "Nobody, and no algorithm or trick can do that.  Halos and media are
> > really different beasts.  The best you can do is learn to use media,
> > then try to re-create the effect.  That's a classic problem, and this
> > was always the only answer, sorry.
>
> > Fabien."

Thanks for the response. It's too bad though ;-)

Post a reply to this message

Robert McGregor <rob### [at] mcgregorfineartcom> wrote:
> > "Nobody, and no algorithm or trick can do that.  Halos and media are
> > really different beasts.  The best you can do is learn to use media,
> > then try to re-create the effect.  That's a classic problem, and this
> > was always the only answer, sorry.

  One of the major problems is that media density components do not
support the filter/transmit channels. This makes it impossible to
simulate certain halo effects with media. (And no, I don't think this
is a good thing, and I think media should be enhanced in this respect.)

  For example having a density like this was possible with halos:

[0 rgb 1 transmit 0]
[1 rgb <1, 0, 0> transmit 1]

  With current media densities it's basically impossible to get the
same effect.

-- 
                                                          - Warp

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That said, can anyone help me with converting the following code? Thanks!

halo
{
 cubic
 max_value 3 spherical_mapping glowing
 colour_map {[0 color rgbt <1,0,0,1>][1 color rgbt <1,1,0,0>]}
 turbulence 1.5 samples 30
}
halo
{
 cubic
 max_value 3 spherical_mapping glowing
 colour_map {[0 color rgbt <1,0,0,1>][1 color rgbt <1,1,0,0>]}
 turbulence 1.05 samples 30 scale .5
 rotate  y*45 translate y*1
}

-Mike

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SharkD <nomail@nomail> wrote:
> That said, can anyone help me with converting the following code? Thanks!

  As I said in my post, it's not possible.

-- 
                                                          - Warp

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"SharkD" <nomail@nomail> wrote:
> That said, can anyone help me with converting the following code? Thanks!
>
> halo
> {
>  cubic
>  max_value 3 spherical_mapping glowing
>  colour_map {[0 color rgbt <1,0,0,1>][1 color rgbt <1,1,0,0>]}
>  turbulence 1.5 samples 30
> }
> halo
> {
>  cubic
>  max_value 3 spherical_mapping glowing
>  colour_map {[0 color rgbt <1,0,0,1>][1 color rgbt <1,1,0,0>]}
>  turbulence 1.05 samples 30 scale .5
>  rotate  y*45 translate y*1
> }
>
> -Mike

As Warp pointed out in his example, the transmit component (rgb*t*) isn't
possible, media ignores it. Maybe you could try using MegaPov's glow feature?
What are you trying to achieve? Can you post a sample image?

-Rob

"There is no spoon."

Post a reply to this message

"Robert McGregor" <rob### [at] mcgregorfineartcom> wrote:
> As Warp pointed out in his example, the transmit component (rgb*t*) isn't
> possible, media ignores it. Maybe you could try using MegaPov's glow feature?
> What are you trying to achieve? Can you post a sample image?
>
> -Rob
>
> "There is no spoon."

It's supposed to look like a flame shooting out of a rocket, I think. I'm not
sure, I haven't been able to render it myself yet.

-Mike

Post a reply to this message

"Robert McGregor" <rob### [at] mcgregorfineartcom> wrote:
> As Warp pointed out in his example, the transmit component (rgb*t*) isn't
> possible, media ignores it. Maybe you could try using MegaPov's glow feature?
> What are you trying to achieve? Can you post a sample image?
>
> -Rob
>
> "There is no spoon."

Has a free version of MegaPov been released yet? I thought it was still in
development.

-Mike

Post a reply to this message

"SharkD" <nomail@nomail> wrote:
> Has a free version of MegaPov been released yet? I thought it was still in
> development.
>
> -Mike

MegaPov has always been free - the latest "official" unofficial release was just
over a year ago. It's just like POV-Ray with lots of additional features built
in:

http://megapov.inetart.net/

-Rob

"There is no spoon."

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