protected static CSGInnerNode head()
{
CSGInnerNode root = new CSGInnerNode( SetOperation.Union );
double[] skinColor = new double[] { 1, .8, .65 };
double[] whiteColor = new double[] { 1, 1, 1 };
double[] blackColor = new double[] { 0, 0, 0 };
double[] blueColor = new double[] { 0, 0, 1 };
double[] redColor = new double[] { 1, 0, 0 };
CSGInnerNode hlava = new CSGInnerNode( SetOperation.Difference );
root.InsertChild( hlava, Matrix4d.Identity );
Sphere s = new Sphere();
s.SetAttribute( PropertyName.COLOR, skinColor );
hlava.InsertChild( s, Matrix4d.Scale( 2.3 ) );
// klobouk
CSGInnerNode klobouk = new CSGInnerNode( SetOperation.Union );
Cylinder klb = new Cylinder( -0.5, 0.5 );
klb.SetAttribute( PropertyName.COLOR, blackColor );
klobouk.InsertChild( klb, Matrix4d.Scale( 2, 2, 1.4 ) * Matrix4d.RotateX( Math.PI / 2 ) * Matrix4d.CreateTranslation( 0, 0.5, 0 ) );
Cylinder ksilt = new Cylinder( -0.5, 0.5 );
ksilt.SetAttribute( PropertyName.COLOR, blackColor );
klobouk.InsertChild( ksilt, Matrix4d.Scale( 3, 3, .1 ) * Matrix4d.RotateX( Math.PI / 2 ) );
root.InsertChild( klobouk, Matrix4d.CreateTranslation( 0, 1.25, 0 ) );
// levy ocni dulek
s = new Sphere();
s.SetAttribute( PropertyName.COLOR, skinColor );
hlava.InsertChild( s, Matrix4d.Scale( 0.7 ) * Matrix4d.CreateTranslation( -0.7, .3, -1.8 ) );
// pravy ocni dulek
s = new Sphere();
s.SetAttribute( PropertyName.COLOR, skinColor );
hlava.InsertChild( s, Matrix4d.Scale( 0.7 ) * Matrix4d.CreateTranslation( 0.7, .3, -1.8 ) );
// prave oko
CSGInnerNode oko = new CSGInnerNode( SetOperation.Union );
root.InsertChild( oko, Matrix4d.CreateTranslation( 0.70, 0.3, -0.5 ) );
Sphere bulva = new Sphere();
bulva.SetAttribute( PropertyName.COLOR, whiteColor );
oko.InsertChild( bulva, Matrix4d.Scale( 1.3 ) );
Sphere cocka = new Sphere();
cocka.SetAttribute( PropertyName.COLOR, blueColor );
oko.InsertChild( cocka, Matrix4d.Scale( 0.3 ) * Matrix4d.CreateTranslation( 0, 0, -1.2 ) );
// leve oko
oko = new CSGInnerNode( SetOperation.Union );
root.InsertChild( oko, Matrix4d.CreateTranslation( -0.70, 0.3, -0.5 ) );
bulva = new Sphere();
bulva.SetAttribute( PropertyName.COLOR, whiteColor );
oko.InsertChild( bulva, Matrix4d.Scale( 1.3 ) );
cocka = new Sphere();
cocka.SetAttribute( PropertyName.COLOR, blueColor );
oko.InsertChild( cocka, Matrix4d.Scale( 0.3 ) * Matrix4d.CreateTranslation( 0, 0, -1.2 ) );
// nos
Cylinder nos = new Cylinder( -0.5, 0.5 );
nos.SetAttribute( PropertyName.COLOR, skinColor );
root.InsertChild( nos, Matrix4d.Scale( 0.2, 0.2, 0.6 ) * Matrix4d.CreateTranslation( 0, 0, -2.65 ) );
// usta
CSGInnerNode usta = new CSGInnerNode( SetOperation.Xor );
Cylinder horniRet = new Cylinder( -0.5, 0.5 );
horniRet.SetAttribute( PropertyName.COLOR, redColor );
usta.InsertChild( horniRet, Matrix4d.CreateTranslation( 0, -0.3, 0 ) );
Cylinder dolniRet = new Cylinder( -0.5, 0.5 );
dolniRet.SetAttribute( PropertyName.COLOR, redColor );
usta.InsertChild( dolniRet, Matrix4d.CreateTranslation( 0, 0.3, 0 ) );
root.InsertChild( usta, Matrix4d.Scale( 0.7, 0.3, 1 ) * Matrix4d.CreateTranslation( 0, -0.7, -1.85 ) );
// vnitrek ust
CSGInnerNode vnitrekUst = new CSGInnerNode( SetOperation.Intersection );
horniRet = new Cylinder( -0.5, 0.5 );
horniRet.SetAttribute( PropertyName.COLOR, blackColor );
vnitrekUst.InsertChild( horniRet, Matrix4d.CreateTranslation( 0, -0.3, 0 ) );
dolniRet = new Cylinder( -0.5, 0.5 );
dolniRet.SetAttribute( PropertyName.COLOR, blackColor );
vnitrekUst.InsertChild( dolniRet, Matrix4d.CreateTranslation( 0, 0.3, 0 ) );
usta.InsertChild( vnitrekUst, Matrix4d.CreateTranslation( 0, 0, 0.1 ) );
return root;
}
/// <summary>
/// Infinite plane with two spheres on it (one of them is transparent)
/// </summary>
public static void TwoSpheres( IRayScene sc )
{
Debug.Assert( sc != null );
// CSG scene:
CSGInnerNode root = new CSGInnerNode( SetOperation.Union );
root.SetAttribute( PropertyName.REFLECTANCE_MODEL, new PhongModel() );
root.SetAttribute( PropertyName.MATERIAL, new PhongMaterial( new double[] { 1.0, 0.8, 0.1 }, 0.1, 0.6, 0.4, 128 ) );
sc.Intersectable = root;
// Background color:
sc.BackgroundColor = new double[] { 0.0, 0.05, 0.07 };
// Camera:
sc.Camera = new StaticCamera( new Vector3d( 0.7, 0.5, -5.0 ),
new Vector3d( 0.0, -0.18, 1.0 ),
50.0 );
// Light sources:
sc.Sources = new LinkedList<ILightSource>();
sc.Sources.Add( new AmbientLightSource( 0.8 ) );
sc.Sources.Add( new PointLightSource( new Vector3d( -5.0, 4.0, -3.0 ), 1.2 ) );
// --- NODE DEFINITIONS ----------------------------------------------------
// Transparent sphere:
Sphere s;
s = new Sphere();
PhongMaterial pm = new PhongMaterial( new double[] { 0.0, 0.2, 0.1 }, 0.05, 0.05, 0.1, 128 );
pm.n = 1.6;
pm.Kt = 0.9;
s.SetAttribute( PropertyName.MATERIAL, pm );
root.InsertChild( s, Matrix4d.Identity );
// Opaque sphere:
s = new Sphere();
root.InsertChild( s, Matrix4d.Scale( 1.2 ) * Matrix4d.CreateTranslation( 1.5, 0.2, 2.4 ) );
// Infinite plane with checker:
Plane pl = new Plane();
pl.SetAttribute( PropertyName.COLOR, new double[] { 0.3, 0.0, 0.0 } );
pl.SetAttribute( PropertyName.TEXTURE, new CheckerTexture( 0.6, 0.6, new double[] { 1.0, 1.0, 1.0 } ) );
root.InsertChild( pl, Matrix4d.RotateX( -MathHelper.PiOver2 ) * Matrix4d.CreateTranslation( 0.0, -1.0, 0.0 ) );
}
/// <summary>
/// Test scene for Toruses by Jan Navratil, (c) 2012
/// </summary>
public static void Toroids( IRayScene sc )
{
Debug.Assert( sc != null );
// CSG scene:
CSGInnerNode root = new CSGInnerNode( SetOperation.Union );
root.SetAttribute( PropertyName.REFLECTANCE_MODEL, new PhongModel() );
root.SetAttribute( PropertyName.MATERIAL, new PhongMaterial( new double[] { 0.5, 0.5, 0.5 }, 0.2, 0.7, 0.2, 16 ) );
sc.Intersectable = root;
// Background color:
sc.BackgroundColor = new double[] { 0.0, 0.15, 0.2 };
// Camera:
sc.Camera = new StaticCamera( new Vector3d( 0.0, 0.0, -10.0 ),
new Vector3d( 0.0, -0.04, 1.0 ),
60.0 );
// Light sources:
sc.Sources = new LinkedList<ILightSource>();
sc.Sources.Add( new AmbientLightSource( 1.8 ) );
sc.Sources.Add( new PointLightSource( new Vector3d( -5.0, 3.0, -3.0 ), 2.0 ) );
// --- NODE DEFINITIONS ----------------------------------------------------
Sphere s;
Torus t;
t = new Torus( 2.0, 1.0 );
t.SetAttribute( PropertyName.COLOR, new double[] { 0, 0, 0.7 } );
t.SetAttribute( PropertyName.TEXTURE, new CheckerTexture( 50, 20, new double[] { 0.9, 0.9, 0 } ) );
root.InsertChild( t, Matrix4d.Scale( 0.8 ) * Matrix4d.CreateRotationX( 0.9 ) * Matrix4d.CreateTranslation( 2.7, 0.6, 0.0 ) );
t = new Torus( 1.0, 1.5 );
t.SetAttribute( PropertyName.COLOR, new double[] { 1, 0, 0 } );
t.SetAttribute( PropertyName.TEXTURE, new CheckerTexture( 40, 40, new double[] { 0.8, 1.0, 1.0 } ) );
CSGInnerNode donut = new CSGInnerNode( SetOperation.Difference );
donut.InsertChild( t, Matrix4d.Identity );
s = new Sphere();
s.SetAttribute( PropertyName.COLOR, new double[] { 0.5, 0.5, 0.5 } );
s.SetAttribute( PropertyName.TEXTURE, new CheckerTexture( 100, 100, new double[] { 1, 0.5, 0 } ) );
donut.InsertChild( s, Matrix4d.Scale( 3 ) * Matrix4d.CreateTranslation( 0, -3, 0 ) );
root.InsertChild( donut, Matrix4d.CreateRotationX( 0.8 ) * Matrix4d.CreateTranslation( -2.5, 0.0, 0.0 ) );
int number = 14;
for ( int i = 0; i < number; i++ )
{
t = new Torus( 0.2, 0.01 + 0.185 * i / number );
t.SetAttribute( PropertyName.COLOR, new double[] { 1, 1, 1 } );
root.InsertChild( t, Matrix4d.CreateRotationX( 0.5 * i ) * Matrix4d.CreateTranslation( 10.0 * (1.0 * i / number) - 4.7, -2.5, 0 ) );
}
}
/// <summary>
/// Six national flags (in artistic style) - by Jakub Vlcek, (c) 2012
/// </summary>
public static void Flags( IRayScene sc )
{
Debug.Assert( sc != null );
// CSG scene:
CSGInnerNode flags = new CSGInnerNode( SetOperation.Union );
flags.SetAttribute( PropertyName.REFLECTANCE_MODEL, new PhongModel() );
flags.SetAttribute( PropertyName.MATERIAL, new PhongMaterial( new double[] { 0.5, 0.5, 0.5 }, 0.2, 0.7, 0.1, 16 ) );
sc.Intersectable = flags;
Sphere s;
Cube c;
// Background color:
sc.BackgroundColor = new double[] { 0.0, 0.05, 0.05 };
// Camera:
sc.Camera = new StaticCamera( new Vector3d( 0.0, 0.0, -10.0 ),
new Vector3d( 0.0, 0.0, 1.0 ),
60.0 );
// Light sources:
sc.Sources = new LinkedList<ILightSource>();
sc.Sources.Add( new AmbientLightSource( 0.8 ) );
sc.Sources.Add( new PointLightSource( new Vector3d( -5.0, 3.0, -3.0 ), 1.0 ) );
sc.Sources.Add( new PointLightSource( new Vector3d( 5.0, 3.0, -3.0 ), 1.0 ) );
// --- NODE DEFINITIONS ----------------------------------------------------
// Latvian flag (intersection, difference and xor):
CSGInnerNode latvia = new CSGInnerNode( SetOperation.Intersection );
c = new Cube();
c.SetAttribute( PropertyName.COLOR, new double[] { 0.3, 0.0, 0.0 } );
latvia.InsertChild( c, Matrix4d.Scale( 4.0, 2.0, 0.4 ) * Matrix4d.CreateTranslation( -2.0, -1.0, 0.0 ) );
CSGInnerNode latviaFlag = new CSGInnerNode( SetOperation.Xor );
c = new Cube();
c.SetAttribute( PropertyName.COLOR, new double[] { 0.3, 0.0, 0.0 } );
latviaFlag.InsertChild( c, Matrix4d.CreateTranslation( -0.5, -0.5, -0.5 ) * Matrix4d.Scale( 4.0, 2.0, 2.0 ) );
c = new Cube();
c.SetAttribute( PropertyName.COLOR, new double[] { 1.0, 1.0, 1.0 } );
latviaFlag.InsertChild( c, Matrix4d.CreateTranslation( -0.5, -0.5, -0.5 ) * Matrix4d.Scale( 4.2, 0.5, 0.5 ) );
latvia.InsertChild( latviaFlag, Matrix4d.Identity );
flags.InsertChild( latvia, Matrix4d.Scale( 0.7 ) * Matrix4d.CreateRotationX( Math.PI / 8 ) * Matrix4d.CreateTranslation( -3.5, 1.5, 0.0 ) );
// Czech flag (difference):
CSGInnerNode czech = new CSGInnerNode( SetOperation.Difference );
s = new Sphere();
s.SetAttribute( PropertyName.COLOR, new double[] { 0.2, 0.2, 0.2 } );
czech.InsertChild( s, Matrix4d.Identity );
s = new Sphere();
s.SetAttribute( PropertyName.COLOR, new double[] { 1.0, 1.0, 1.0 } );
czech.InsertChild( s, Matrix4d.CreateTranslation( 0.0, 0.8, -1.0 ) );
s = new Sphere();
s.SetAttribute( PropertyName.COLOR, new double[] { 1.0, 0.0, 0.0 } );
czech.InsertChild( s, Matrix4d.CreateTranslation( 0.0, -0.8, -1.1 ) );
s = new Sphere();
s.SetAttribute( PropertyName.COLOR, new double[] { 0.0, 0.0, 1.0 } );
czech.InsertChild( s, Matrix4d.CreateTranslation( -1.0, 0.0, -0.8 ) );
flags.InsertChild( czech, Matrix4d.Scale( 1.6, 1.0, 1.0 ) * Matrix4d.CreateRotationY( Math.PI / 8 ) *
Matrix4d.CreateTranslation( 4.0, -1.5, 0.0 ) );
// Croatian flag (union, intersection):
CSGInnerNode croatianFlag = new CSGInnerNode( SetOperation.Union );
CSGInnerNode croatianSign = new CSGInnerNode( SetOperation.Intersection );
CSGInnerNode checkerBoard = new CSGInnerNode( SetOperation.Union );
c = new Cube();
c.SetAttribute( PropertyName.COLOR, new double[] { 1.0, 0.0, 0.0 } );
c.SetAttribute( PropertyName.TEXTURE, new CheckerTexture( 10.0, 10.0, new double[] { 1.0, 1.0, 1.0 } ) );
croatianSign.InsertChild( c, Matrix4d.CreateTranslation( -0.5, -0.5, -0.5 ) * Matrix4d.Scale( 2.0, 2.0, 0.4 ) );
CSGInnerNode sign = new CSGInnerNode( SetOperation.Union );
s = new Sphere();
s.SetAttribute( PropertyName.COLOR, new double[] { 1.0, 1.0, 1.0 } );
sign.InsertChild( s, Matrix4d.Identity );
c = new Cube();
c.SetAttribute( PropertyName.COLOR, new double[] { 1.0, 1.0, 1.0 } );
sign.InsertChild( c, Matrix4d.Scale( 1.8 ) * Matrix4d.CreateTranslation( -0.9, 0.1, -0.9 ) );
croatianSign.InsertChild( sign, Matrix4d.Scale( 0.5, 0.33, 0.5 ) * Matrix4d.CreateTranslation( 0.44, -0.5, 0.0 ) );
c = new Cube();
c.SetAttribute( PropertyName.COLOR, new double[] { 1.0, 0.0, 0.0 } );
croatianFlag.InsertChild( c, Matrix4d.CreateTranslation( -0.5, -0.5, -0.5 ) * Matrix4d.Scale( 4.0, 0.6, 0.6 ) *
Matrix4d.RotateX( Math.PI / 4 ) * Matrix4d.CreateTranslation( 0.5, 1.0, 1.0 ) );
c = new Cube();
c.SetAttribute( PropertyName.COLOR, new double[] { 1.0, 1.0, 1.0 } );
croatianFlag.InsertChild( c, Matrix4d.CreateTranslation( -0.5, -0.5, -0.5 ) * Matrix4d.Scale( 4.0, 0.6, 0.6 ) *
Matrix4d.RotateX( Math.PI / 4 ) * Matrix4d.CreateTranslation( 0.5, 0.3, 1.0 ) );
c = new Cube();
c.SetAttribute( PropertyName.COLOR, new double[] { 0.0, 0.0, 1.0 } );
croatianFlag.InsertChild( c, Matrix4d.CreateTranslation( -0.5, -0.5, -0.5 ) * Matrix4d.Scale( 4.0, 0.6, 0.6 ) *
Matrix4d.RotateX( Math.PI / 4 ) * Matrix4d.CreateTranslation( 0.5, -0.4, 1.0 ) );
croatianFlag.InsertChild( croatianSign, Matrix4d.Scale( 0.8 ) * Matrix4d.CreateTranslation( 0.4, 0.5, 0.0 ) );
flags.InsertChild( croatianFlag, Matrix4d.Scale( 0.8 ) * Matrix4d.CreateRotationY( Math.PI / 8 ) * Matrix4d.CreateTranslation( -0.4, 1.5, 1.0 ) );
// Brazilian flag (union):
CSGInnerNode brazilianFlag = new CSGInnerNode( SetOperation.Union );
c = new Cube();
c.SetAttribute( PropertyName.COLOR, new double[] { 0.0, 0.8, 0.0 } );
brazilianFlag.InsertChild( c, Matrix4d.CreateTranslation( -0.5, -0.5, -0.5 ) * Matrix4d.Scale( 4.0, 2.0, 0.2 ) );
c = new Cube();
c.SetAttribute( PropertyName.COLOR, new double[] { 1.0, 1.0, 0.0 } );
brazilianFlag.InsertChild( c, Matrix4d.CreateTranslation( -0.5, -0.5, -0.5 ) * Matrix4d.CreateRotationZ( Math.PI / 4 ) *
Matrix4d.Scale( 2.0, 1.0, 0.4 ) );
s = new Sphere();
s.SetAttribute( PropertyName.COLOR, new double[] { 0.0, 0.0, 1.0 } );
brazilianFlag.InsertChild( s, Matrix4d.Scale( 0.5 ) * Matrix4d.CreateTranslation( 0.0, 0.0, 0.0 ) );
flags.InsertChild( brazilianFlag, Matrix4d.Scale( 0.9 ) * Matrix4d.RotateY( -Math.PI / 8 ) * Matrix4d.CreateTranslation( 0.0, -1.8, 1.0 ) );
// Finnish flag (intersection and difference):
CSGInnerNode finlandFlag = new CSGInnerNode( SetOperation.Difference );
s = new Sphere();
s.SetAttribute( PropertyName.COLOR, new double[] { 1.0, 1.0, 1.0 } );
finlandFlag.InsertChild( s, Matrix4d.Scale( 2.0, 1.0, 0.5 ) * Matrix4d.CreateTranslation( 0.0, 0.0, 0.3 ) );
c = new Cube();
c.SetAttribute( PropertyName.COLOR, new double[] { 0.0, 0.0, 1.0 } );
finlandFlag.InsertChild( c, Matrix4d.CreateTranslation( -0.5, -0.5, -0.5 ) * Matrix4d.Scale( 4.2, 0.5, 0.5 ) );
c = new Cube();
c.SetAttribute( PropertyName.COLOR, new double[] { 0.0, 0.0, 1.0 } );
finlandFlag.InsertChild( c, Matrix4d.CreateTranslation( -0.5, -0.5, -0.5 ) * Matrix4d.Scale( 0.5, 4.2, 0.5 ) * Matrix4d.CreateTranslation( -0.5, 0.0, 0.0 ) );
flags.InsertChild( finlandFlag, Matrix4d.Scale( 0.7 ) * Matrix4d.CreateTranslation( 3.5, 1.5, 0.0 ) );
// Cuban flag (union and intersection):
CSGInnerNode cubanFlag = new CSGInnerNode( SetOperation.Union );
for ( int i = 0; i < 5; i++ )
{
c = new Cube();
if ( i % 2 == 0 )
c.SetAttribute( PropertyName.COLOR, new double[] { 0.0, 0.0, 1.0 } );
else
c.SetAttribute( PropertyName.COLOR, new double[] { 1.0, 1.0, 1.0 } );
cubanFlag.InsertChild( c, Matrix4d.CreateTranslation( -0.5, -0.5, -0.5 ) * Matrix4d.Scale( 4.0, 0.4, 0.4 ) *
Matrix4d.CreateTranslation( new Vector3d( 0.0, 0.0 - i * 0.4, 0.8 - i * 0.2 ) ) );
}
CSGInnerNode wedge = new CSGInnerNode( SetOperation.Intersection );
c = new Cube();
c.SetAttribute( PropertyName.COLOR, new double[] { 1.0, 0.0, 0.0 } );
wedge.InsertChild( c, Matrix4d.CreateTranslation( -0.5, -0.5, -0.5 ) * Matrix4d.Scale( 2.0, 2.0, 2.0 ) *
Matrix4d.CreateRotationZ( Math.PI / 4 ) );
c = new Cube();
c.SetAttribute( PropertyName.COLOR, new double[] { 1.0, 0.0, 0.0 } );
wedge.InsertChild( c, Matrix4d.Scale( 4.0 ) * Matrix4d.CreateTranslation( 0.0, -2.0, -2.0 ) );
cubanFlag.InsertChild( wedge, Matrix4d.Scale( 0.7 ) * Matrix4d.CreateTranslation( -2.0001, -0.8, 0.4999 ) );
flags.InsertChild( cubanFlag, Matrix4d.Scale( 0.7 ) * Matrix4d.RotateY( Math.PI / 8 ) * Matrix4d.CreateTranslation( -4.0, -1.0, 0.0 ) );
}
/// <summary>
/// Simple scene containing five colored spheres.
/// </summary>
public static void FiveBalls( IRayScene sc )
{
Debug.Assert( sc != null );
// CSG scene:
CSGInnerNode root = new CSGInnerNode( SetOperation.Union );
root.SetAttribute( PropertyName.REFLECTANCE_MODEL, new PhongModel() );
root.SetAttribute( PropertyName.MATERIAL, new PhongMaterial( new double[] { 0.5, 0.5, 0.5 }, 0.1, 0.6, 0.3, 16 ) );
sc.Intersectable = root;
// Background color:
sc.BackgroundColor = new double[] { 0.0, 0.05, 0.05 };
// Camera:
sc.Camera = new StaticCamera( new Vector3d( 0.0, 0.0, -10.0 ),
new Vector3d( 0.0, 0.0, 1.0 ),
60.0 );
// Light sources:
sc.Sources = new LinkedList<ILightSource>();
sc.Sources.Add( new AmbientLightSource( 0.8 ) );
sc.Sources.Add( new PointLightSource( new Vector3d( -5.0, 3.0, -3.0 ), 1.0 ) );
// --- NODE DEFINITIONS ----------------------------------------------------
// sphere 1:
Sphere s = new Sphere();
s.SetAttribute( PropertyName.COLOR, new double[] { 1.0, 0.6, 0.0 } );
root.InsertChild( s, Matrix4d.Identity );
// sphere 2:
s = new Sphere();
s.SetAttribute( PropertyName.COLOR, new double[] { 0.2, 0.9, 0.5 } );
root.InsertChild( s, Matrix4d.CreateTranslation( -2.2, 0.0, 0.0 ) );
// sphere 3:
s = new Sphere();
s.SetAttribute( PropertyName.COLOR, new double[] { 0.1, 0.3, 1.0 } );
root.InsertChild( s, Matrix4d.CreateTranslation( -4.4, 0.0, 0.0 ) );
// sphere 4:
s = new Sphere();
s.SetAttribute( PropertyName.COLOR, new double[] { 1.0, 0.2, 0.2 } );
root.InsertChild( s, Matrix4d.CreateTranslation( 2.2, 0.0, 0.0 ) );
// sphere 5:
s = new Sphere();
s.SetAttribute( PropertyName.COLOR, new double[] { 0.1, 0.4, 0.0 } );
s.SetAttribute( PropertyName.TEXTURE, new CheckerTexture( 80.0, 40.0, new double[] { 1.0, 0.8, 0.2 } ) );
root.InsertChild( s, Matrix4d.CreateTranslation( 4.4, 0.0, 0.0 ) );
}
protected static CSGInnerNode test6Spheres( SetOperation op )
{
// scene:
CSGInnerNode root = new CSGInnerNode( op );
Sphere s = new Sphere();
s.SetAttribute( PropertyName.COLOR, new double[] { 1, 0.3, 1 } );
root.InsertChild( s, Matrix4d.Scale( 2 ) );
s = new Sphere();
s.SetAttribute( PropertyName.COLOR, new double[] { 0.5, 0.8, 0.2 } );
root.InsertChild( s, Matrix4d.CreateTranslation( 0, 0, -2 ) );
s = new Sphere();
s.SetAttribute( PropertyName.COLOR, new double[] { 1, 0.3, 0 } );
root.InsertChild( s, Matrix4d.CreateTranslation( 0, 1, -0.5 ) );
s = new Sphere();
s.SetAttribute( PropertyName.COLOR, new double[] { 1, 0.3, 0 } );
root.InsertChild( s, Matrix4d.CreateTranslation( 1, 0, -0.5 ) );
s = new Sphere();
s.SetAttribute( PropertyName.COLOR, new double[] { 1, 0.3, 0 } );
root.InsertChild( s, Matrix4d.CreateTranslation( 0, -1, -0.5 ) );
s = new Sphere();
s.SetAttribute( PropertyName.COLOR, new double[] { 1, 0.3, 0 } );
root.InsertChild( s, Matrix4d.CreateTranslation( -1, 0, -0.5 ) );
return root;
}