#VRML V2.0 utf8
#
#
#return : [appearance]; [material] ;
#
#ex-appearance2.wrl
# - using spot light (just to illuminate the sphere at 0,0,0)
# examples of VRML appearance (just material)
# note that the definition of a material and/or an appearance
# lits the shape
#backgroung
Background { skyColor 1 1 1
}
# Camera
Viewpoint {
position 0 8 16
orientation 1 0 0 -0.24
fieldOfView 0.785398
}
# Illumination
SpotLight {
ambientIntensity 0 #; no ambient
attenuation 1 0 0 #; no attenuation
beamWidth 1.
color 1 1 1 #; white
cutOffAngle .785
direction 0 0 -1
intensity .3
location 0 1 3
on TRUE
radius 3 #; try here 0 and 100 to see the difference
}
# REFERENCE SPHERE - no surface properties (everything = 0)
# no modification in relation to example 1
Transform {
translation 0 4 -4
children [
Shape {
geometry Sphere { radius 2}
appearance Appearance {
material Material {
ambientIntensity 0.
diffuseColor 0 0 0
emissiveColor 0 0 0
shininess 0
specularColor 0 0 0
transparency 0
}
}
}
]
}
# LEFT SPHERE (it is a pure diffuse sphere without the
# specular and emissive components).
# no modification in relation to example 1
Transform {
translation -6 0 0
children [
Shape {
geometry Sphere { radius 2}
appearance Appearance {
material Material {
ambientIntensity 0.
diffuseColor 1 0 0
emissiveColor 0 0 0
shininess 0
specularColor 0 0 0
transparency 0
}
}
}
]
}
# CENTRAL SPHERE
# Look the effect of having a SpotLight. Compare to example 1
Transform {
translation 0 0 0
children [
Shape {
geometry Sphere { radius 2 }
appearance Appearance {
material Material {
ambientIntensity 0.
specularColor 1 0 0
shininess 0.5
transparency 0
}
}
}
]
}
# RIGHT SPHERE (it is a pure emissive box, without diffuse and
# specular color components).
# no modification in relation to example 1
Transform {
translation 6 0 0
children [
Shape {
geometry Sphere { radius 2}
appearance Appearance {
material Material {
ambientIntensity 0.
diffuseColor 0 0 0
emissiveColor 1 0 0
shininess 0
transparency 0
}
}
}
]
}
#