Hi guys, I'm trying to create a Metalflake finish in Pov-ray. Back in the
seventies it was a popular type of paint, using a very rough metallic flake
basecoat, under a smooth glossy transparant coloured paint. The texture I
used in this pic is:

texture { pigment { color red 0.200 green 0.000 blue 0.200 }finish{phong 2
roughness .05 specular 2 metallic .9 reflection .3} normal {bumps .3}}

it looks okay for the basecoat but needs a smooth glossy top layer.... Has
anyone got some tips or ideas how to improve this?
Mark van der Kwaak
www.dbbp.com

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Attachments:
Download 'cb18_lv.jpg' (93 KB)

Preview of image 'cb18_lv.jpg'

Duckman <duc### [at] wxsnl> wrote in message news:3e67977c@news.povray.org...
> Hi guys, I'm trying to create a Metalflake finish in Pov-ray. Back in the
> seventies it was a popular type of paint, using a very rough metallic
flake
> basecoat, under a smooth glossy transparant coloured paint. The texture I
> used in this pic is:
>
> texture { pigment { color red 0.200 green 0.000 blue 0.200 }finish{phong 2
> roughness .05 specular 2 metallic .9 reflection .3} normal {bumps .3}}
>
> it looks okay for the basecoat but needs a smooth glossy top layer.... Has
> anyone got some tips or ideas how to improve this?
> Mark van der Kwaak
> www.dbbp.com
>
>
>
>

is putting a "real" outside coating around the metal parts out of the
question? i got this effect with this code, but it made the paint look more
blue. making a layered texture, i couldn't quite get it to look like this.
but i didn't spend much time.


#declare layered_paint_1 =
texture

        pigment

                rgb <0.200, 0.000, 0.200>
        }
        finish{
               phong 2
               phong_size 10
               roughness .05
               specular 2
               metallic .9
               reflection .3
        }
        normal {bumps .3}
}

sphere {
        <0, 5, 0>,5
        scale <1, .2, 1>
        texture {layered_paint_1 scale .01}
}


sphere {
        <0, 5.05, 0>, 5.05
        scale <1, .2, 1>
        texture {
        pigment {
                rgbt <.9, .9, 9, .95>
        }
        finish {
                phong .75
                phong_size 130
                specular 1
                roughness .001
        }
    }
}

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Attachments:
Download 'circle.jpg' (21 KB)

Preview of image 'circle.jpg'

"Ross Litscher" <lit### [at] osuedu> wrote in message
news:3e67a510@news.povray.org...
>
> Duckman <duc### [at] wxsnl> wrote in message news:3e67977c@news.povray.org...
> > Hi guys, I'm trying to create a Metalflake finish in Pov-ray. Back in
the
> > seventies it was a popular type of paint, using a very rough metallic
> flake
> > basecoat, under a smooth glossy transparant coloured paint. The texture
I
> > used in this pic is:
> >
> > texture { pigment { color red 0.200 green 0.000 blue 0.200 }finish{phong
2
> > roughness .05 specular 2 metallic .9 reflection .3} normal {bumps .3}}
> >
> > it looks okay for the basecoat but needs a smooth glossy top layer....
Has
> > anyone got some tips or ideas how to improve this?
> > Mark van der Kwaak
> > www.dbbp.com
> >
> >
> >
> >
>
> is putting a "real" outside coating around the metal parts out of the
> question? i got this effect with this code, but it made the paint look
more
> blue. making a layered texture, i couldn't quite get it to look like this.
> but i didn't spend much time.
>
>
> #declare layered_paint_1 =
> texture
>
>         pigment
>
>                 rgb <0.200, 0.000, 0.200>
>         }
>         finish{
>                phong 2
>                phong_size 10
>                roughness .05
>                specular 2
>                metallic .9
>                reflection .3
>         }
>         normal {bumps .3}
> }
>
> sphere {
>         <0, 5, 0>,5
>         scale <1, .2, 1>
>         texture {layered_paint_1 scale .01}
> }
>
>
> sphere {
>         <0, 5.05, 0>, 5.05
>         scale <1, .2, 1>
>         texture {
>         pigment {
>                 rgbt <.9, .9, 9, .95>
>         }
>         finish {
>                 phong .75
>                 phong_size 130
>                 specular 1
>                 roughness .001
>         }
>     }
> }
>
Well, I thought of that but it would be a hell of a job....
there must be an easier way!

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> rgbt <.9, .9, 9, .95>

It's not a surprise that it's more blue when you do this. :o)

A layered texture is the answer.


Regards,
Hugo

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w00t!

lousy mistakes!

Hugo Asm <hua### [at] post3teledk> wrote in message
news:3e67d1d0$1@news.povray.org...
> > rgbt <.9, .9, 9, .95>
>
> It's not a surprise that it's more blue when you do this. :o)
>
> A layered texture is the answer.
>
>
> Regards,
> Hugo
>
>

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That is awesome! I think it is good that way
because of distance, great site you have,
and I sent you an E-mail called "Saw your 
bikes".

Alex


"Duckman" <duc### [at] wxsnl> wrote in message news:3e67977c@news.povray.org...
| Hi guys, I'm trying to create a Metalflake finish in Pov-ray. Back in the
| seventies it was a popular type of paint, using a very rough metallic flake
| basecoat, under a smooth glossy transparant coloured paint. The texture I
| used in this pic is:
| 
| texture { pigment { color red 0.200 green 0.000 blue 0.200 }finish{phong 2
| roughness .05 specular 2 metallic .9 reflection .3} normal {bumps .3}}
| 
| it looks okay for the basecoat but needs a smooth glossy top layer.... Has
| anyone got some tips or ideas how to improve this?
| Mark van der Kwaak
| www.dbbp.com
| 
| 
| 
|

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Duckman wrote:
> 
> it looks okay for the basecoat but needs a smooth glossy top layer.... Has
> anyone got some tips or ideas how to improve this?

Glossy top layer = transparent pigment, no normal, tight specular 
highlight, fresnel variable reflection. Remember to give the object an 
interior {} with an ior for the fresnel reflection.

-Xplo

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Thanks for all the input, this is what I came up with using the comments and
suggestions I received:
#declare metalflake3 =
texture { pigment {  rgb <.2, .0, .2> } finish { phong 2 phong_size 10
roughness .1 specular 2 metallic .9 reflection .3} normal {bumps .5} }
texture { pigment {  rgbt <.2, .0, .2, .95>     } finish { phong 1
phong_size 130 roughness .001 specular 1 reflection .2 }}
I started with almost clear top layers but the colour became too light,
after about 10 attempts this one was the best sofar......
What do you think?

"Duckman" <duc### [at] wxsnl> wrote in message news:3e67977c@news.povray.org...
> Hi guys, I'm trying to create a Metalflake finish in Pov-ray. Back in the
> seventies it was a popular type of paint, using a very rough metallic
flake
> basecoat, under a smooth glossy transparant coloured paint. The texture I
> used in this pic is:
>
> texture { pigment { color red 0.200 green 0.000 blue 0.200 }finish{phong 2
> roughness .05 specular 2 metallic .9 reflection .3} normal {bumps .3}}
>
> it looks okay for the basecoat but needs a smooth glossy top layer.... Has
> anyone got some tips or ideas how to improve this?
> Mark van der Kwaak
> www.dbbp.com
>
>
>
>

Post a reply to this message

Attachments:
Download 'cb18_lv_04.jpg' (74 KB)

Preview of image 'cb18_lv_04.jpg'

Thanks for all the input, this is what I came up with using the comments and
suggestions I received:
#declare metalflake3 =
texture { pigment {  rgb <.2, .0, .2> } finish { phong 2 phong_size 10
roughness .1 specular 2 metallic .9 reflection .3} normal {bumps .5} }
texture { pigment {  rgbt <.2, .0, .2, .95>     } finish { phong 1
phong_size 130 roughness .001 specular 1 reflection .2 }}
I started with almost clear top layers but the colour became too light,
after about 10 attempts this one was the best sofar......
What do you think?

"Duckman" <duc### [at] wxsnl> wrote in message news:3e67977c@news.povray.org...
> Hi guys, I'm trying to create a Metalflake finish in Pov-ray. Back in the
> seventies it was a popular type of paint, using a very rough metallic
flake
> basecoat, under a smooth glossy transparant coloured paint. The texture I
> used in this pic is:
>
> texture { pigment { color red 0.200 green 0.000 blue 0.200 }finish{phong 2
> roughness .05 specular 2 metallic .9 reflection .3} normal {bumps .3}}
>
> it looks okay for the basecoat but needs a smooth glossy top layer.... Has
> anyone got some tips or ideas how to improve this?
> Mark van der Kwaak
> www.dbbp.com
>
>
>
>

Post a reply to this message

Attachments:
Download 'cb18_lv_04.jpg' (74 KB)

Preview of image 'cb18_lv_04.jpg'

#include "colors.inc"
global_settings {assumed_gamma 1.8}
camera {location <0,10,-10>   
right x*image_width/image_height look_at <0.0, 0.0,  0.0>}
light_source { z, rgb .5 translate -z*50 rotate x*70 rotate y*50}
background {White}

#declare layered_paint_1 =
texture {
        pigment{rgb <0.200, 0.000, 0.200>}
        finish{
               phong 2
               phong_size 5
               roughness .05
               specular 2
               metallic .9
               reflection .3
        }
        normal {bumps .3}
}

#declare layered_paint_2 =
texture {
        pigment {
                rgbt <.9, .9, 9, .80>
        }
        finish {
                phong 2.9
                phong_size 200
                specular 2
                roughness .005
        }
    }


sphere {
        <0, 5.05, 0>, 5.05
        scale <1, .2, 1>
        texture {average 
                texture_map { 
               [.80 layered_paint_1]
               [.30 layered_paint_2]
                
        }
        scale .001
    }
}


--
Martial
http://Cathemline.org

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