Does ANYONE know a good way to use media in Moray?!  I'm going crazy!  I
duplicated a texture (from a hand-coded POV file) that used media just to
see if I was doing something wrong, and it turns out that I wasn't!  I just
can't get it to work!

If anyone can help me, I'd greatly appreciate it :)

-Ian

Post a reply to this message

Help! Me too ! I tried to follow a Povray media example, in Moray, by trying
to
make a material (In the moray material editor) that was identical to
the povray example. That was not easy !!! (I couldn't make it!)

I would be happy, happy if anyone that have had any luck
with this would post the source!!

Ian: I can post the source of a model of a BLACK room with a light, so
bright,
It looks like a solid white shape coming through a hole in the wall if you
want to
, thats the only thing I managed to do, but it is media ! (grin)

Ian Burgmyer wrote in message <37e5c2c8@news.povray.org>...
>Does ANYONE know a good way to use media in Moray?!  I'm going crazy!  I
>duplicated a texture (from a hand-coded POV file) that used media just to
>see if I was doing something wrong, and it turns out that I wasn't!  I just
>can't get it to work!
>If anyone can help me, I'd greatly appreciate it :)

Post a reply to this message

Hi,

I've also got problems with media. It seems that the POV-Ray
programmers wanted to make it as difficult as possible to create
media! ;-)

But by now, i have more or less mastered it.
Well, at least, I'm able to make some fog clouds now...

to do this:

1) divide up your lightning into one light (intensity ~0.5) which
interacts with media and is attentuated by it, and one (i ~0.5) which
isn't. (Uncheck the box!) - Or has someone else found a different way
to create grey clouds?

2) add a hollow object to your scene.

set up its texture:
a) pigment - color clear (rgbf 1)
b) add interior
c) add media; check scattering
d) add "scattering_color", set to something grey (i don't think it
actually changes the results what color you choose)
e) add density
f) add colormap_pattern (whichever you like). the colors define the
density - eg. set the left side to black, the right to grey. (the
filter and transmit values don't matter)
g) if you'd like, add  noise to stir up the pattern.

This should give you nice clouds.

Perhaps someone else can answer me the following questions:

1) How can you make media grey (or whatever color) without changing
the lightning?
2) How are emitting media used? (eg. for warp fields, hi trekkies!)

Hope this helps

bye

Florian Fischer

Post a reply to this message

Hi Glenn Bech, you recently wrote in moray.win:

> Help! Me too ! I tried to follow a Povray media example, in Moray, by trying
> to make a material (In the moray material editor) that was identical to
> the povray example. That was not easy !!! (I couldn't make it!)
Why couldn't you make it? Moray should be able to create any normal
POV texture. If you post the POV code here I can try to reproduce it.
 
- Lutz
  email : lut### [at] stmuccom
  Web   : http://www.stmuc.com/moray

Post a reply to this message

Lutz Kretzschmar wrote:
> 
> Hi Glenn Bech, you recently wrote in moray.win:
> 
> > Help! Me too ! I tried to follow a Povray media example, in Moray, by trying
> > to make a material (In the moray material editor) that was identical to
> > the povray example. That was not easy !!! (I couldn't make it!)
> Why couldn't you make it? Moray should be able to create any normal
> POV texture. If you post the POV code here I can try to reproduce it.
> 
> - Lutz
>   email : lut### [at] stmuccom
>   Web   : http://www.stmuc.com/moray

Chew on this :)


#declare Candle =
union{
  cylinder {
    <0, 0, 0>,
    <0, 1, 0>,
    1
    texture{
      pigment{rgbt 1}
    }
    interior{
      media{
        emission 1
        scattering{1,.01}
        intervals 20
        samples 1, 1
        confidence 0.999
        variance 1/100
        density {
          spherical
          cubic_wave
          turbulence 0.4
          lambda 1
          scale <0.8, 1, 0.8>
          color_map{
            [ 0 rgb 0]
            [ 1 rgb <5.0,3.0,0.0>]
          }
        }
        density {
          gradient y
          translate y
          cubic_wave
          color_map{
            [ 0 rgb 0]
            [ 1 rgb 1]
          }
        }
        density {
          gradient y
          poly_wave 0.5
          color_map{
            [ 0 rgb 0]
            [ 1 rgb 1]
          }
        }
      }
    } 
    hollow
    scale <1, 5, 1>
    translate y*1.25
  }

  intersection{
    cone{y*-8,.75,y*1,.5 pigment{rgb<1,1,.97>}finish{ambient .5 diffuse .23}}
    sphere{<.05,1,0>,.5 inverse pigment{rgb 1}finish{ambient .5 diffuse .23}}
  }

  cylinder{y*.8,y*1.5,.1 pigment{rgb 0}}
}

object{
  Candle
}

camera{
  location <0,1,-6>
  look_at 2.5 * y
}

light_source{
  <75,45,-500>
  color rgb 1
}


-- 
Ken Tyler

See my 1000+ Povray and 3D Rendering and Raytracing Links at:
http://home.pacbell.net/tylereng/index.html

Post a reply to this message

Oh boy oh boy oh boy.. .I've got some good news!

TEST 1: I opened up MediaTest.POV (the POV code for my attempt at media) and
the INC file.  I then replaced the media THERE with Ken's media.  STILL
didn't work!  Nothing came up at ALL!

TEST 2: HOLLOWED OUT the cube.  WORKED!  Thank you, Ken!  (you gave me the
idea to hollow it out with your code)

-Ian

Lutz Kretzschmar <lut### [at] stmuccom> wrote in message
news:37e69dba.49582205@194.174.214.110...
> Why couldn't you make it? Moray should be able to create any normal
> POV texture. If you post the POV code here I can try to reproduce it.

Post a reply to this message

Hi Ken, you recently wrote in moray.win:

> Chew on this :)

See moray.binaries<g>. I can't post the complete MDL file because I
did this with a build that has a newer file format. 

But the texture is in the Material Library file format and can be
loaded into the Material Editor of V3.1, and we were talking about
materials.....

Naturally, Moray outputs much neater POV code with correct
indentation.... arghh, ouch, no, no, not the indentation police,
please....mercy, I'll talk, I swear...<G>.

- Lutz
  email : lut### [at] stmuccom
  Web   : http://www.stmuc.com/moray

Post a reply to this message

Lutz Kretzschmar wrote:

> Naturally, Moray outputs much neater POV code with correct
> indentation.... arghh, ouch, no, no, not the indentation police,
> please....mercy, I'll talk, I swear...<G>.

 Indenting - Arrrrrggghhh !!!!!!!!!!!
 Oh well I am notorius around here for my poorly indented code and I can
only hope that you will find it in your heart to fogive me. If you only
knew how many hours I have spent un-indenting code generated by Moray you
would be rolling over in your grave before you even reached it :)

 The image does look like the original and I am glad to have helped out.
Found a bug too - well, well :)

-- 
Ken Tyler

See my 1000+ Povray and 3D Rendering and Raytracing Links at:
http://home.pacbell.net/tylereng/index.html

Post a reply to this message