VRML

This site contains VRML 2.0 materials converted from the SGI's Open Inventor material examples.

Conversion example :

Inventor VRML 2.0 
#Inventor V1.0 ascii

#artdeco00.iv
Material {
   ambientColor 0.0706087 0.0212897 0.0336154
   diffuseColor 0.282435 0.0851587 0.134462
   specularColor 0.276305 0.11431 0.139857
   emissiveColor 0 0 0
   shininess 0.127273
   transparency 0
}
 
#VRML V2.0 utf8

PROTO Artdeco00 [] {
  Material {
    ambientIntensity 0.250000
    diffuseColor 0.282435 0.085159 0.134462
    specularColor 0.276305 0.114310 0.139857
    emissiveColor 0.000000 0.000000 0.000000
    shininess 0.127273
    transparency 0.000000
  }
}
VRML2.0 "ambientIntensity" is calculated by the mean factor between the Inventor "ambientColor" and "diffuseColor".

How to use these materials :

VRML 2.0 supports Prototypes definitions as well as External Prototypes, the easiest way to use these materials is to gather the materials inside a separate file and declare an EXTERNPROTO in the file you want to use these materials (see example below).

Unfortunately, most of the VRML 2.0 browsers doesn't seem to support external prototypes (especially PC versions), so you might as well cut an paste any material prototype inside the file you want to use it.

External prototype usage :

file : Materials.wrl 
#VRML V2.0 utf8

PROTO MyMaterial00 [] {
    Material {
        ambientIntensity 0.263158
        diffuseColor 0.345455 0.163262 0.122622
        specularColor 0.212121 0.107475 0.000000
        emissiveColor 0.021212 0.010747 0.000000
        shininess 0.048649
        transparency 0.100000
    }
}

.
.
.

PROTO MyMaterial27 [] {
    Material {
        ambientIntensity 0.240506
        diffuseColor 0.277281 0.104336 0.079900
        specularColor 0.305587 0.141916 0.2705727
        emissiveColor 0.030559 0.014192 0.0270573
        shininess 0.096970
        transparency 0.000000
    }
}
 Materials prototype definition with PROTO. 
Note that these PROTO have no field nor events to rule their behaviour as they are only "definitions".
file : Material_example.wrl 
#VRML V2.0 utf8

EXTERNPROTO MyMaterial07 [] "http://.../Materials.wrl#MyMaterial07"
EXTERNPROTO MyMaterial15 [] "http://.../Materials.wrl#MyMaterial15"

.
.
.

Group {
    children [
       DEF Right_Object Transform {
           translation 2 0 0
           children [
               Shape {
                   appearance Appearance {
                       material MyMaterial07 {}
                   }
                   geometry Sphere {}
               }
           ]
       },
       DEF Left_Object Transform {
           translation -2 0 0
           children [
               Shape {
                   appearance Appearance {
                       material MyMaterial15 {}
                   }
                   geometry Cylinder {}
               }
           ]
       }
    ]
}
 All the PROTO to be used should be instancied using an EXTERNPROTO statement refering to the Material definition file with an URL field.
 
Test View
Click Here to check your VRML browser for external Prototype capabilities, you should get something like this :
 

Send any comments or suggestions to David Roussel