Hi ! Im trying to reproduce this piece of code in the texture editor in
Moray...
But to me it seems that the Normal is attached to the Object itself, and NOT
the texture... Is that possible to do with Moray ? And is there any smart
way
of adding finishes to multi-layered textures? I always find myself using
copy &
paste one time for each layer...

And If I want to change the reflection parameters for my texture for
example, I
have to do that one time for each layer as well, or ?

(This even gets worse when Im working with wood-textures, because i often
use
two or three of them with minor differences just to make thing more
realistic,
I then have to change number_of_textures*number_of_layers settings in the
editor, that takes time)

Maybe a "paste by refrence" in the material editor would be good to have ?
(like
in cloning of objects.. just for texture parameters...) would probably
complicate
things a lot though....


--- 8 < ---

object { Door
         rotate y*-35
         translate <2.5,0,0>
         texture {T_Wood2 scale 0.5 rotate x*90}
         normal {
              wood 0.1
              turbulence <0.1, 0.35, 0.1>
              octaves 5
              lambda 3.25
              scale <0.25, .25, 1>
              rotate <5, 10, 5>
              translate -x*2
              scale 0.5
              rotate x*90
         }
         texture { pigment { rgbf <0.75,0.15,0,0.95>}
                   finish { specular 0.25
                            roughness 0.01
                            ambient 0
                            diffuse 0.33
                          }
                 }
       }

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

> But to me it seems that the Normal is attached to the Object itself, and NOT
> the texture... Is that possible to do with Moray ? 
Well, essentially everything is attached to the object.... I am not
entirely sure whether that code causes a texture with three layers
(the second layer having default pigment and finish) or two layers
(the normal statement being added to the first layer. I would say that
my first guess is correct, but maybe someone with a more intricate
knowledge can jump in here... (Ken?).

> And is there any smart way of adding finishes to 
> multi-layered textures? I always find myself using
> copy & paste one time for each layer...
As far as I can remember, only the finish in the top-most layer (the
last one in the list) is valid, all other finishes are ignored....

> And If I want to change the reflection parameters for my texture for
> example, I > have to do that one time for each layer as well, or ?
If I'm right, you'll only need to change it for the one finish layer.

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

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Lutz Kretzschmar wrote:
> 
> Hi Glenn Bech, you recently wrote in moray.win:
> 
> > But to me it seems that the Normal is attached to the Object itself, and NOT
> > the texture... Is that possible to do with Moray ?
> Well, essentially everything is attached to the object.... I am not
> entirely sure whether that code causes a texture with three layers
> (the second layer having default pigment and finish) or two layers
> (the normal statement being added to the first layer. I would say that
> my first guess is correct, but maybe someone with a more intricate
> knowledge can jump in here... (Ken?).
> 
> > And is there any smart way of adding finishes to
> > multi-layered textures? I always find myself using
> > copy & paste one time for each layer...
> As far as I can remember, only the finish in the top-most layer (the
> last one in the list) is valid, all other finishes are ignored....
> 
> > And If I want to change the reflection parameters for my texture for
> > example, I > have to do that one time for each layer as well, or ?
> If I'm right, you'll only need to change it for the one finish layer.
> 
> - Lutz
>   email : lut### [at] stmuccom
>   Web   : http://www.stmuc.com/moray

 I will answer the finishes for each layer statement and see if I can
come up with answers to the rest later. If we look at the following
code you will see three different declared textures each with it's
own finish statement.
  Upon rendering the code in POV-Ray we will see 3 different gradient
layers appearing on the sphere object. By changing the ambient values
for each layer it can be seen that these changes will have an impact
on the final results when used as we have in this example.
  You will also see that I added a finish statement to the sphere object
itself. If we try changing the ambient value in that finish statement we
will find that it has no effect on the appearance of the textures we have
applied. This is because we have already specified a finish for the child
textures and attempting to add a finish statement to the parent object will
be ignored as Lutz pointed out.

Example:

#declare T1 = texture {
               pigment { gradient y
                 color_map {
                             [.2 rgb  1]
                             [.2 rgb .5]
                             [.8 rgb .5]
                             [ 1 rgb  1]
                }
               }
               finish {
                       ambient .50
                       diffuse .35
              }
            }


#declare T2 = texture {
               pigment { gradient x
                 color_map {
                             [.2 rgbf  1]
                             [.2 rgbf .5]
                             [.8 rgbf .5]
                             [ 1 rgbf  1]
                }
               }
               finish {
                       ambient .50
                       diffuse .35
              }
            }


#declare T3 = texture {
               pigment { gradient x+y
                 color_map {
                             [.2 rgbf  1]
                             [.2 rgbf .5]
                             [.8 rgbf .5]
                             [ 1 rgbf  1]
                }
               }
               finish {
                       ambient .50
                       diffuse .35
              }
            }


sphere { <0,0,0>, 1 
         texture { T1 }
         texture { T2 }
         texture { T3 }
finish {
        ambient .50
        diffuse .35
       }
}

camera{ location<0,0,-2> look_at 0}

light_source {<0,0,-100> rgb 1}


-- 
Ken Tyler
1100+ Povray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html

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