// Use this for initialization
protected override void Init()
{
base.Init();
// NURBS curve
List <Vector4> nurbsControlPoints = new List <Vector4>();
List <float> nurbsKnots = new List <float>();
int nurbsDegree = 3;
for (int i = 0; i <= nurbsDegree; i++)
{
nurbsKnots.Add(0);
}
for (int i = 0, j = 20; i < j; i++)
{
nurbsControlPoints.Add(
new Vector4(
Random.value * 400 - 200,
Random.value * 400,
Random.value * 400 - 200,
1 // weight of control point: higher means stronger attraction
)
);
float knot = (float)(i + 1) / (j - nurbsDegree);
nurbsKnots.Add(Mathf.Clamp(knot, 0, 1));
}
THREE.NURBSCurve nurbsCurve = new THREE.NURBSCurve(nurbsDegree, nurbsKnots.ToArray(), nurbsControlPoints.ToArray());
THREE.Geometry nurbsGeometry = new THREE.Geometry();
List <Vector3> pts = nurbsCurve.getPoints(200);
nurbsGeometry.vertices = pts;
THREE.Line nurbsLine = new THREE.Line(nurbsGeometry, wireMaterial);
nurbsLine.position = Vector3.zero;
scene.Add(nurbsLine);
// controlPoints
THREE.Geometry nurbsControlPointsGeometry = new THREE.Geometry();
nurbsControlPointsGeometry.vertices = new List <Vector3>(nurbsCurve.getVec3ControlPoints());
THREE.Line nurbsControlPointsLine = new THREE.Line(nurbsControlPointsGeometry, wireMaterial);
nurbsControlPointsLine.position = nurbsLine.position;
scene.Add(nurbsControlPointsLine);
// NURBS surface
Vector4[][] nsControlPoints = new Vector4[][] {
new Vector4[] {
new Vector4(-200, -200, 100, 1),
new Vector4(-200, -100, -200, 1),
new Vector4(-200, 100, 250, 1),
new Vector4(-200, 200, -100, 1)
},
new Vector4[] {
new Vector4(0, -200, 0, 1),
new Vector4(0, -100, -100, 5),
new Vector4(0, 100, 150, 5),
new Vector4(0, 200, 0, 1)
},
new Vector4[] {
new Vector4(200, -200, -100, 1),
new Vector4(200, -100, 200, 1),
new Vector4(200, 100, -250, 1),
new Vector4(200, 200, 100, 1)
}
};
int degree1 = 2;
int degree2 = 3;
float[] knots1 = new float[] { 0, 0, 0, 1, 1, 1 };
float[] knots2 = new float[] { 0, 0, 0, 0, 1, 1, 1, 1 };
nurbsSurface = new THREE.NURBSSurface(degree1, degree2, knots1, knots2, nsControlPoints);
THREE.ParametricGeometry geometry = new THREE.ParametricGeometry(getSurfacePoint, 20, 20);
THREE.MeshThreeJs mesh = new THREE.MeshThreeJs(geometry, material);
mesh.position = new Vector3(0, 0, 0);
scene.Add(mesh);
t_nsControlPoints = nsControlPoints;
}
// Use this for initialization
protected override void Init()
{
base.Init();
THREE.MeshThreeJs threeMesh;
float heightScale = 1;
float p = 2;
float q = 3;
float radius = 150, tube = 10;
int segmentsR = 50, segmentsT = 20;
var torus2 = new THREE.TorusKnotGeometry(radius, tube, segmentsR, segmentsT, p, q, heightScale);
var sphere2 = new THREE.ParametricGeometries.ParaSphereGeometry(75, 20, 10).geo;
// var torus = new THREE.TorusKnotGeometry( radius, tube, segmentsR, segmentsT, p , q, heightScale );
// var sphere = new THREE.SphereGeometry( 75, 20, 10 );
//var GrannyKnot = new THREE.Curves.GrannyKnot();
// var tube = new THREE.TubeGeometry( GrannyKnot, 150, 2, 8, true, false );
// var benchmarkCopies = 1000;
// var benchmarkObject = tube;
// var rand = function() { return (Math.random() - 0.5 ) * 600; };
// for (var b=0;b<benchmarkCopies;b++) {
// object = THREE.SceneUtils.createMultiMaterialObject( benchmarkObject, materials );
// object.position.set( rand(), rand(), rand() );
// scene.add( object );
// }
threeMesh = new THREE.MeshThreeJs(torus2, material);
threeMesh.position = new Vector3(0, 100, 0);
scene.Add(threeMesh);
THREE.Geometry geo;
// Klein Bottle
geo = new THREE.ParametricGeometry(THREE.ParametricGeometries.klein, 20, 20);
threeMesh = new THREE.MeshThreeJs(geo, material);
threeMesh.position = new Vector3(0, 0, 0);
threeMesh.scale = Vector3.one * 10;
scene.Add(threeMesh);
// Mobius Strip
geo = new THREE.ParametricGeometry(THREE.ParametricGeometries.mobius, 20, 20);
threeMesh = new THREE.MeshThreeJs(geo, material);
threeMesh.position = new Vector3(10, 0, 0);
threeMesh.scale = Vector3.one * 100;
scene.Add(threeMesh);
geo = new THREE.ParametricGeometry(THREE.ParametricGeometries.plane(200, 200), 10, 20);
//geo = new THREE.ParametricGeometry( THREE.ParametricGeometries.plane, 10, 20 );
threeMesh = new THREE.MeshThreeJs(geo, material);
threeMesh.position = new Vector3(0, 0, 0);
scene.Add(threeMesh);
// threeMesh = new THREE.Mesh( torus2, material );
// threeMesh.position = new Vector3( 0, 100, 0 );
// scene.Add( threeMesh );
threeMesh = new THREE.MeshThreeJs(sphere2, material);
threeMesh.position = new Vector3(200, 0, 0);
scene.Add(threeMesh);
// error
// var tube2 = new THREE.ParametricGeometries.TubeGeometry( GrannyKnot, 150, 2, 8, true ).geo;
// threeMesh = new THREE.Mesh( tube2, material );
// threeMesh.position = new Vector3( 100, 0, 0 );
// scene.Add( threeMesh );
}