public void copyFaceNormalToVertexNormals()
{
for (int f = 0, fl = this.faces.Count; f < fl; f++)
{
Face3 face = this.faces[f];
face.SetFaceNormalToVertexNormals();
}
}
// Use this for initialization
void Start()
{
THREE.Geometry geometry;
AddRenderObject(new THREE.SphereGeometry(75, 20, 10), material, new Vector3(-400, 0, 200));
AddRenderObject(new THREE.IcosahedronGeometry(75, 1), material, new Vector3(-200, 0, 200));
AddRenderObject(new THREE.OctahedronGeometry(75, 2), material, new Vector3(0, 0, 200));
AddRenderObject(new THREE.TetrahedronGeometry(75, 0), material, new Vector3(200, 0, 200));
AddRenderObject(new THREE.PlaneGeometry(100, 100, 4, 4), material, new Vector3(-400, 0, 0));
geometry = AddRenderObject(new THREE.BoxGeometry(100, 100, 100, 4, 4, 4), material, new Vector3(-200, 0, 0));
AddRenderObject(new THREE.CircleGeometry(50, 20, 0, Mathf.PI * 2), material, new Vector3(0, 0, 0));
AddRenderObject(new THREE.RingGeometry(10, 50, 20, 5, 0, Mathf.PI * 2), material, new Vector3(200, 0, 0));
AddRenderObject(new THREE.CylinderGeometry(25, 75, 100, 40, 5, false), material, new Vector3(400, 0, 0));
//
List <Vector3> points = new List <Vector3>();
for (var i = 0; i < 50; i++)
{
points.Add(new Vector3(Mathf.Sin(i * 0.2f) * Mathf.Sin(i * 0.1f) * 15 + 50, 0, (i - 5) * 2));
}
AddRenderObject(new THREE.LatheGeometry(points, 20), material, new Vector3(-400, 0, -200));
AddRenderObject(new THREE.TorusGeometry(50, 20, 20, 20), material, new Vector3(-200, 0, -200));
AddRenderObject(new THREE.TorusKnotGeometry(50, 10, 50, 20), material, new Vector3(0, 0, -200));
THREE.Line lineMesh = new THREE.Line(new THREE.Geometry(), wireMaterial);
THREE.Geometry geo = geometry;
for (int i = 0; i < geo.faces.Count; i++)
{
THREE.Face3 _face = geo.faces[i];
List <int> tri = _face.GetTriangles();
for (int n = 0; n < tri.Count; n++)
{
Vector3 normal = _face.vertexNormals[n];
THREE.ArrowHelper arrow = new THREE.ArrowHelper(normal, geo.vertices[tri[n]], 10, Color.green);
lineMesh.Add(arrow);
}
}
AddRenderLineObject(lineMesh.geo, wireMaterial, new Vector3(-200, 0, 0));
}
// Use this for initialization
public TorusGeometry(float radius = 10, float tube = 4, int radialSegments = 8, int tubularSegments = 6, float arc = Mathf.PI * 2)
{
Vector3 center = new Vector3();
List <Vector2> uvs = new List <Vector2> ();
List <Vector3> normals = new List <Vector3> ();
for (int j = 0; j <= radialSegments; j++)
{
for (int i = 0; i <= tubularSegments; i++)
{
float u = (float)i / tubularSegments * arc;
float v = (float)j / radialSegments * Mathf.PI * 2;
center.x = radius * Mathf.Cos(u);
center.y = radius * Mathf.Sin(u);
var vertex = new Vector3();
vertex.x = (radius + tube * Mathf.Cos(v)) * Mathf.Cos(u);
vertex.y = (radius + tube * Mathf.Cos(v)) * Mathf.Sin(u);
vertex.z = tube * Mathf.Sin(v);
this.vertices.Add(vertex);
uvs.Add(new Vector2((float)i / tubularSegments, (float)j / radialSegments));
normals.Add((vertex - center).normalized);
}
}
for (int j = 1; j <= radialSegments; j++)
{
for (int i = 1; i <= tubularSegments; i++)
{
int a = (tubularSegments + 1) * j + i - 1;
int b = (tubularSegments + 1) * (j - 1) + i - 1;
int c = (tubularSegments + 1) * (j - 1) + i;
int d = (tubularSegments + 1) * j + i;
var face = new Face3(a, b, d, new Vector3[] { clone(normals[a]), clone(normals[b]), clone(normals[d]) });
this.faces.Add(face);
this.faceVertexUvs.Add(new List <Vector2>(new Vector2[] { uvs[a], uvs[b], uvs[d] }));
face = new Face3(b, c, d, new Vector3[] { clone(normals[b]), clone(normals[c]), clone(normals[d]) });
this.faces.Add(face);
this.faceVertexUvs.Add(new List <Vector2>(new Vector2[] { uvs[b], uvs[c], uvs[d] }));
}
}
this.computeFaceNormals();
//this.computeVertexNormals();
}
void f3(int a, int b, int c, Shape shape, bool isBottom, int shapesOffset, WorldUVGenerator uvgen, Option options)
{
a += shapesOffset;
b += shapesOffset;
c += shapesOffset;
// normal, color, material
Face3 face;
if (faceIndex >= faces.Count)
{
face = new Face3(a, b, c);
this.faces.Add(face);
}
else
{
face = faces[faceIndex];
face.a = a;
face.b = b;
face.c = c;
}
faceIndex++;
TubeGeometry.FrenetFrames splineTube = options.frames;
Vector3 normal;
if (splineTube != null)
{
int stepIndex = isBottom ? 0 : splineTube.tangents.Count - 1;
normal = splineTube.tangents[stepIndex] * (isBottom ? -1 : 1);
}
else
{
normal = (isBottom ? -1 : 1) * Vector3.forward;
}
face.vertexNormals = new Vector3[] { normal, normal, normal };
List <Vector2> uvs = isBottom ? uvgen.generateBottomUV(this, shape, a, b, c) : uvgen.generateTopUV(this, shape, a, b, c);
face.uvs = uvs.ToArray();
// TODO: faceVertexUvs の変更で問題点ないか確認
// if(faceIndex-1 >= faceVertexUvs.Count){
// this.faceVertexUvs.Add( new List<Vector2>( uvs ));
// }else{
// this.faceVertexUvs[faceIndex - 1] = new List<Vector2>( uvs );
// }
// //this.faceVertexUvs.Add( new List<Vector2>( new Vector2[]{ Vector2.one, Vector2.one, Vector2.one } )); // Debug
}
public CircleGeometry(float radius_, int segments_, float thetaStart_, float thetaLength_)
{
List <Vector2> uvs = new List <Vector2> ();
float radius = radius_;
// float thetaStart = thetaStart_ != undefined ? thetaStart_ : 0;
// float thetaLength = thetaLength_ != undefined ? thetaLength_ : Mathf.PI * 2;
// int segments = segments_ != undefined ? Mathf.max( 3, segments_ ) : 8;
float thetaStart = thetaStart_;
float thetaLength = thetaLength_;
int segments = segments_;
Vector3 center = new Vector3();
Vector2 centerUV = new Vector2(0.5f, 0.5f);
this.vertices.Add(center);
uvs.Add(centerUV);
for (int i = 0; i <= segments; i++)
{
Vector3 vertex = new Vector3();
float segment = thetaStart + ((float)i / segments) * thetaLength;
vertex.x = radius * Mathf.Cos(segment);
vertex.y = radius * Mathf.Sin(segment);
this.vertices.Add(vertex);
uvs.Add(new Vector2((vertex.x / radius + 1) / 2, (vertex.y / radius + 1) / 2));
}
Vector3 n = new Vector3(0, 0, 1);
for (int i = 1; i <= segments; i++)
{
int v1 = i;
int v2 = i + 1;
int v3 = 0;
Face3 face = new Face3(v1, v2, v3, new Vector3[] { n, n, n });
face.uvs = new Vector2[] {
uvs [i],
uvs [i + 1],
centerUV
};
this.faces.Add(face);
}
}
// Approximate a curved face with recursively sub-divided triangles.
void make(THREEVector3 v1, THREEVector3 v2, THREEVector3 v3)
{
Face3 face = new Face3(v1.index, v2.index, v3.index, new Vector3[] { v1.vec, v2.vec, v3.vec });
// centroid.copy( v1 ).add( v2 ).add( v3 ).divideScalar( 3 );
//THREEVector3 centroid = new THREEVector3();
//centroid.vec = Vector3.zero;
centroid.vec = (v1.vec + v2.vec + v3.vec) / 3.0f;
float azi = azimuth(centroid);
face.uvs = new Vector2[] {
correctUV(v1.uv, v1, azi),
correctUV(v2.uv, v2, azi),
correctUV(v3.uv, v3, azi)
};
this.faces.Add(face);
}
List <Vector3> GetSameIdNormalsById(int v_id, float smoothAngle)
{
List <Vector3> sameIdNormals = new List <Vector3>();
for (int i = 0; i < faces.Count; i++)
{
Face3 face = faces [i];
int[] indexes = face.GetVertexIndexList();
Vector3[] normals = face.GetVertexNormals();
for (int n = 0; n < indexes.Length; n++)
{
int check_id = indexes [n]; // v_id: 頂点のid
if (check_id == v_id)
{
// Vector3 sameNormal = faces[i].vertexNormals[n];
Vector3 sameNormal = normals[n];
sameIdNormals.Add(sameNormal);
}
}
}
//
List <Vector3> smoothNormals = new List <Vector3>();
float checkAngle = smoothAngle;
for (int n = 0; n < sameIdNormals.Count; n++)
{
Vector3 currentNormal = sameIdNormals[n];
Vector3 smoothVec = currentNormal;
for (int i = 0; i < sameIdNormals.Count; i++)
{
Vector3 checkNormal = sameIdNormals[i];
float angle = Vector3.Angle(checkNormal, currentNormal);
if (angle < checkAngle)
{
smoothVec += checkNormal;
}
}
smoothVec.Normalize();
smoothNormals.Add(smoothVec);
}
return(smoothNormals);
}
// faceから面のnormal計算
public void computeFaceNormals()
{
Vector3 cb = new Vector3(), ab = new Vector3();
for (int f = 0, fl = this.faces.Count; f < fl; f++)
{
Face3 face = this.faces[f];
Vector3 vA = this.vertices[face.a];
Vector3 vB = this.vertices[face.b];
Vector3 vC = this.vertices[face.c];
cb = vC - vB;
ab = vA - vB;
cb = Vector3.Cross(cb, ab);
cb.Normalize();
face.normal = cb;
}
}
public UnityEngine.Mesh CreateAndGetMesh_Simple()
{
UnityEngine.Mesh mesh = new UnityEngine.Mesh();
List <int> t_triangle = new List <int> ();
for (int i = 0; i < faces.Count; i++)
{
Face3 face = faces [i];
t_triangle.AddRange(face.GetTriangles());
}
// uv
List <Vector2> t_uv = new List <Vector2> (new Vector2[vertices.Count]);
for (int i = 0; i < faces.Count; i++)
{
List <int> indexes = faces [i].GetVertexIndexList();
for (int n = 0; n < indexes.Count; n++)
{
int v_id = indexes [n]; // v_id: 頂点のid
Vector2 uv = faceVertexUvs [i] [n]; // i 番目のfaceのn番目のuv
uv.x = 1.0f - uv.x; // flip x
t_uv [v_id] = uv;
}
}
mesh.vertices = vertices.ToArray();
mesh.triangles = t_triangle.ToArray();
mesh.uv = t_uv.ToArray();
mesh.RecalculateBounds();
//mesh.UploadMeshData(true);
return(mesh);
}
public static Vector3 randomPointInFace(Face3 face, Geometry geometry, JsBoolean useCachedAreas) { return null; }
/*
* public float width;
* public float height;
*
* int widthSegments;
* int heightSegments;
*/
public PlaneGeometry(float width, float height, int widthSegments, int heightSegments)
{
/*
* this.width = width;
* this.height = height;
*
* this.widthSegments = widthSegments;
* this.heightSegments = heightSegments;
*/
int ix, iz;
float width_half = width / 2;
float height_half = height / 2;
int gridX = widthSegments;
int gridZ = heightSegments;
int gridX1 = gridX + 1;
int gridZ1 = gridZ + 1;
float segment_width = width / gridX;
float segment_height = height / gridZ;
Vector3 normal = new Vector3(0, 0, 1);
//float uvFactorX = 1.0f/widthSegments;
//float uvFactorY = 1.0f/heightSegments;
for (iz = 0; iz < gridZ1; iz++)
{
for (ix = 0; ix < gridX1; ix++)
{
var x = ix * segment_width - width_half;
var y = iz * segment_height - height_half;
this.vertices.Add(new Vector3(x, -y, 0));
//this.uvs.Add( new Vector2(ix*uvFactorX, 1.0f - iz*uvFactorY));
}
}
for (iz = 0; iz < gridZ; iz++)
{
for (ix = 0; ix < gridX; ix++)
{
int a = ix + gridX1 * iz;
int b = ix + gridX1 * (iz + 1);
int c = (ix + 1) + gridX1 * (iz + 1);
int d = (ix + 1) + gridX1 * iz;
Vector2 uva = new Vector2((float)ix / gridX, 1 - (float)iz / gridZ);
Vector2 uvb = new Vector2((float)ix / gridX, 1 - (float)(iz + 1) / gridZ);
Vector2 uvc = new Vector2((float)(ix + 1) / gridX, 1 - (float)(iz + 1) / gridZ);
Vector2 uvd = new Vector2((float)(ix + 1) / gridX, 1 - (float)iz / gridZ);
Face3 face0 = new Face3(a, b, d, new Vector3[] { normal, normal, normal });
//face.normal.copy( normal );
//face.vertexNormals.push( normal.clone(), normal.clone(), normal.clone() );
//face.materialIndex = materialIndex;
face0.uvs = new Vector2[] { uva, uvb, uvd };
this.faces.Add(face0);
Face3 face1 = new Face3(b, c, d, new Vector3[] { normal, normal, normal });
//face.normal.copy( normal );
//face.vertexNormals.push( normal.clone(), normal.clone(), normal.clone() );
//face.materialIndex = materialIndex;
face1.uvs = new Vector2[] { uvb, uvc, uvd };
this.faces.Add(face1);
}
}
//this.computeCentroids();
//
}
// Use this for initialization
protected override void Init()
{
base.Init();
THREE.MeshThreeJs drawNormalMesh;
THREE.MeshThreeJs threeMesh;
threeMesh = new THREE.MeshThreeJs(new THREE.SphereGeometry(75, 20, 10), material);
threeMesh.position = new Vector3(-400, 0, 200);
scene.Add(threeMesh);
threeMesh = new THREE.MeshThreeJs(new THREE.IcosahedronGeometry(75, 1), material);
threeMesh.position = new Vector3(-200, 0, 200);
scene.Add(threeMesh);
threeMesh = new THREE.MeshThreeJs(new THREE.OctahedronGeometry(75, 2), material);
threeMesh.position = new Vector3(0, 0, 200);
scene.Add(threeMesh);
threeMesh = new THREE.MeshThreeJs(new THREE.TetrahedronGeometry(75, 0), material);
threeMesh.position = new Vector3(200, 0, 200);
scene.Add(threeMesh);
threeMesh = new THREE.MeshThreeJs(new THREE.PlaneGeometry(100, 100, 4, 4), material);
threeMesh.position = new Vector3(-400, 0, 0);
scene.Add(threeMesh);
threeMesh = new THREE.MeshThreeJs(new THREE.BoxGeometry(100, 100, 100, 4, 4, 4), material);
threeMesh.position = new Vector3(-200, 0, 0);
scene.Add(threeMesh);
drawNormalMesh = threeMesh; // Draw Normal Mesh
threeMesh = new THREE.MeshThreeJs(new THREE.CircleGeometry(50, 20, 0, Mathf.PI * 2), material);
threeMesh.position = new Vector3(0, 0, 0);
scene.Add(threeMesh);
threeMesh = new THREE.MeshThreeJs(new THREE.RingGeometry(10, 50, 20, 5, 0, Mathf.PI * 2), material);
threeMesh.position = new Vector3(200, 0, 0);
scene.Add(threeMesh);
threeMesh = new THREE.MeshThreeJs(new THREE.CylinderGeometry(25, 75, 100, 40, 5, false), material);
threeMesh.position = new Vector3(400, 0, 0);
scene.Add(threeMesh);
//
List <Vector3> points = new List <Vector3>();
for (var i = 0; i < 50; i++)
{
points.Add(new Vector3(Mathf.Sin(i * 0.2f) * Mathf.Sin(i * 0.1f) * 15 + 50, 0, (i - 5) * 2));
}
threeMesh = new THREE.MeshThreeJs(new THREE.LatheGeometry(points, 20), material);
threeMesh.position = new Vector3(-400, 0, -200);
scene.Add(threeMesh);
threeMesh = new THREE.MeshThreeJs(new THREE.TorusGeometry(50, 20, 20, 20), material);
threeMesh.position = new Vector3(-200, 0, -200);
scene.Add(threeMesh);
threeMesh = new THREE.MeshThreeJs(new THREE.TorusKnotGeometry(50, 10, 50, 20), material);
threeMesh.position = new Vector3(0, 0, -200);
scene.Add(threeMesh);
/*
* threeMesh = new THREE.AxisHelper( 50 );
* threeMesh.position.set( 200, 0, -200 );
* scene.Add( threeMesh );
*
* threeMesh = new THREE.ArrowHelper( new THREE.Vector3( 0, 1, 0 ), new THREE.Vector3( 0, 0, 0 ), 50 );
* threeMesh.position.set( 400, 0, -200 );
* scene.Add( threeMesh );
*/
THREE.Line lineMesh = new THREE.Line(new THREE.Geometry(), wireMaterial);
lineMesh.position = drawNormalMesh.position;
THREE.Geometry geo = drawNormalMesh.geo;
for (int i = 0; i < geo.faces.Count; i++)
{
THREE.Face3 _face = geo.faces[i];
int[] tri = _face.GetTriangles();
for (int n = 0; n < tri.Length; n++)
{
Vector3 normal = _face.vertexNormals[n];
THREE.ArrowHelper arrow = new THREE.ArrowHelper(normal, geo.vertices[tri[n]], 10, Color.green);
lineMesh.Add(arrow);
}
}
scene.Add(lineMesh);
}
void buildPlane(string u, string v, int udir, int vdir, float width, float height, float depth, int materialIndex)
{
string w = "z";
int ix, iy;
int gridX = this.widthSegments;
int gridY = this.heightSegments;
float width_half = width / 2.0f;
float height_half = height / 2.0f;
int offset = this.vertices.Count;
if ((u == "x" && v == "y") || (u == "y" && v == "x"))
{
w = "z";
}
else if ((u == "x" && v == "z") || (u == "z" && v == "x"))
{
w = "y";
gridY = depthSegments;
}
else if ((u == "z" && v == "y") || (u == "y" && v == "z"))
{
w = "x";
gridX = depthSegments;
}
int _u = IndexFromStr(u);
int _v = IndexFromStr(v);
int _w = IndexFromStr(w);
int gridX1 = gridX + 1;
int gridY1 = gridY + 1;
float segment_width = width / gridX;
float segment_height = height / gridY;
Vector3 normal = new Vector3();
normal [_w] = depth > 0 ? 1 : -1;
//float uvFactorX = 1.0f/widthSegments;
//float uvFactorY = 1.0f/heightSegments;
for (iy = 0; iy < gridY1; iy++)
{
for (ix = 0; ix < gridX1; ix++)
{
Vector3 vector = new Vector3();
vector [_u] = (ix * segment_width - width_half) * udir;
vector [_v] = (iy * segment_height - height_half) * vdir;
vector [_w] = depth;
this.vertices.Add(vector);
}
}
for (iy = 0; iy < gridY; iy++)
{
for (ix = 0; ix < gridX; ix++)
{
int a = ix + gridX1 * iy;
int b = ix + gridX1 * (iy + 1);
int c = (ix + 1) + gridX1 * (iy + 1);
int d = (ix + 1) + gridX1 * iy;
Vector2 uva = new Vector2((float)ix / gridX, 1 - (float)iy / gridY);
Vector2 uvb = new Vector2((float)ix / gridX, 1 - (float)(iy + 1) / gridY);
Vector2 uvc = new Vector2((float)(ix + 1) / gridX, 1 - (float)(iy + 1) / gridY);
Vector2 uvd = new Vector2((float)(ix + 1) / gridX, 1 - (float)iy / gridY);
Face3 face = new Face3(a + offset, b + offset, d + offset);
face.vertexNormals = new Vector3[] { normal, normal, normal };
face.uvs = new Vector2[] { uva, uvb, uvd };
this.faces.Add(face);
face = new Face3(b + offset, c + offset, d + offset);
face.vertexNormals = new Vector3[] { normal, normal, normal };
face.uvs = new Vector2[] { uvb, uvc, uvd };
this.faces.Add(face);
}
}
}
public PolyhedronGeometry(Vector3[] vertices, Face3[] faces, JsNumber radius, JsNumber detail) { }
public TubeGeometry(Curve path, int segments = 64, float radius = 1, int radialSegments = 8, bool closed = false)
{
//this.path = path;
List <List <int> > grid = new List <List <int> > ();
//Vector3 tangent;
Vector3 normal;
Vector3 binormal;
int numpoints = segments + 1;
//float x, y, z;
//float tx, ty, tz;
float u, v;
float cx, cy;
Vector3 pos, pos2 = new Vector3();
int ip, jp;
int a, b, c, d;
Vector2 uva, uvb, uvc, uvd;
var frames = new THREE.TubeGeometry.FrenetFrames(path, segments, closed);
// tangents = frames.tangents;
// normals = frames.normals;
// binormals = frames.binormals;
// proxy internals
this.tangents = frames.tangents;
this.normals = frames.normals;
this.binormals = frames.binormals;
// function vert( x, y, z ) {
//
// return scope.vertices.push( new THREE.Vector3( x, y, z ) ) - 1;
//
// }
// consruct the grid
for (int i = 0; i < numpoints; i++)
{
//grid[ i ] = [];
grid.Add(new List <int> ());
u = (float)i / (numpoints - 1);
pos = path.getPointAt(u);
//tangent = tangents [i];
normal = normals [i];
binormal = binormals [i];
for (int j = 0; j < radialSegments; j++)
{
v = (float)j / radialSegments * 2.0f * Mathf.PI;
cx = -radius *Mathf.Cos(v); // TODO: Hack: Negating it so it faces outside.
cy = radius * Mathf.Sin(v);
//pos2.copy( pos );
pos2 = (pos);
pos2.x += cx * normal.x + cy * binormal.x;
pos2.y += cx * normal.y + cy * binormal.y;
pos2.z += cx * normal.z + cy * binormal.z;
//grid[ i ][ j ] = vert( pos2.x, pos2.y, pos2.z );
grid [i].Add(vert(pos2.x, pos2.y, pos2.z));
}
}
// construct the mesh
for (int i = 0; i < segments; i++)
{
for (int j = 0; j < radialSegments; j++)
{
ip = (closed) ? (i + 1) % segments : i + 1;
jp = (j + 1) % radialSegments;
a = grid[i][j]; // *** NOT NECESSARILY PLANAR ! ***
b = grid[ip][j];
c = grid[ip][jp];
d = grid[i][jp];
uva = new Vector2((float)i / segments, (float)j / radialSegments);
uvb = new Vector2((float)(i + 1) / segments, (float)j / radialSegments);
uvc = new Vector2((float)(i + 1) / segments, (float)(j + 1) / radialSegments);
uvd = new Vector2((float)i / segments, (float)(j + 1) / radialSegments);
Face3 face0 = new Face3(a, b, d);
face0.uvs = new Vector2[] { uva, uvb, uvd };
this.faces.Add(face0);
Face3 face1 = new Face3(b, c, d);
face1.uvs = new Vector2[] { uvb, uvc, uvd };
this.faces.Add(face1);
}
}
//this.computeFaceNormals();
//this.computeVertexNormals();
}
public LatheGeometry(List <Vector3> points, int segments = 20, float phiStart = 0, float phiLength = Mathf.PI * 2)
{
float inversePointLength = 1.0f / (points.Count - 1);
float inverseSegments = 1.0f / segments;
for (int i = 0, il = segments; i <= il; i++)
{
float phi = phiStart + i * inverseSegments * phiLength;
float c = Mathf.Cos(phi),
s = Mathf.Sin(phi);
for (int j = 0, jl = points.Count; j < jl; j++)
{
var pt = points [j];
Vector3 vertex = new Vector3();
vertex.x = c * pt.x - s * pt.y;
vertex.y = s * pt.x + c * pt.y;
vertex.z = pt.z;
this.vertices.Add(vertex);
}
}
int np = points.Count;
for (int i = 0, il = segments; i < il; i++)
{
for (int j = 0, jl = points.Count - 1; j < jl; j++)
{
int _base = j + np * i;
int a = _base;
int b = _base + np;
int c = _base + 1 + np;
int d = _base + 1;
float u0 = i * inverseSegments;
float v0 = j * inversePointLength;
float u1 = u0 + inverseSegments;
float v1 = v0 + inversePointLength;
Face3 face0 = new Face3(a, b, d);
face0.uvs = new Vector2[] {
new Vector2(u0, v0),
new Vector2(u1, v0),
new Vector2(u0, v1)
};
this.faces.Add(face0);
Face3 face1 = new Face3(b, c, d);
face1.uvs = new Vector2[] {
new Vector2(u1, v0),
new Vector2(u1, v1),
new Vector2(u0, v1)
};
this.faces.Add(face1);
}
}
this.mergeVertices();
this.computeFaceNormals();
this.computeVertexNormals();
}
void f4(int a, int b, int c, int d, Shape shape, List <Vector3> wallContour, int stepIndex, int stepsLength, int contourIndex1, int contourIndex2, int shapesOffset, WorldUVGenerator uvgen, Option options, bool reverse, Quaternion tQ0, Quaternion tQ1)
{
a += shapesOffset;
b += shapesOffset;
c += shapesOffset;
d += shapesOffset;
List <Vector2> uvs = uvgen.generateSideWallUV(this, shape, wallContour, a, b, c, d,
stepIndex, stepsLength, contourIndex1, contourIndex2);
Face3 face0;
if (faceIndex >= faces.Count)
{
face0 = new Face3(a, b, d);
this.faces.Add(face0);
}
else
{
face0 = faces[faceIndex];
face0.a = a;
face0.b = b;
face0.c = d;
}
face0.uvs = new Vector2[] { uvs[0], uvs[1], uvs[3] };
faceIndex++;
Face3 face1;
if (faceIndex >= faces.Count)
{
face1 = new Face3(b, c, d);
this.faces.Add(face1);
}
else
{
face1 = faces[faceIndex];
face1.a = b;
face1.b = c;
face1.c = d;
}
face1.uvs = new Vector2[] { uvs[1], uvs[2], uvs[3] };
faceIndex++;
//
Vector3 normal0;
Vector3 normal1;
TubeGeometry.FrenetFrames splineTube = options.frames;
if (shape.normals != null)
{
if (splineTube != null)
{
Vector3 n0 = shape.normals[contourIndex1];
if (reverse)
{
n0.y *= -1;
}
normal0 = tQ0 * n0;
normal0.Normalize();
Vector3 n1 = shape.normals[contourIndex1];
if (reverse)
{
n1.y *= -1;
}
normal1 = tQ1 * n1;
normal1.Normalize();
}
else
{
Vector3 norm = shape.normals[contourIndex1];
if (reverse)
{
norm.y *= -1;
}
normal0 = norm;
normal1 = norm;
}
// face0.vertexNormals = new Vector3[]{normal0, normal0, normal1 };
// face1.vertexNormals = new Vector3[]{normal0, normal1, normal1 };
face0.vertexNormals[0] = normal0;
face0.vertexNormals[1] = normal0;
face0.vertexNormals[2] = normal1;
face1.vertexNormals[0] = normal0;
face1.vertexNormals[1] = normal1;
face1.vertexNormals[2] = normal1;
}
//
// TODO: faceVertexUvs の変更で問題点ないか確認
// List<Vector2> uvs0;
// if(faceIndex - 2 >= this.faceVertexUvs.Count){
// uvs0 = new List<Vector2>( new Vector2[]{ uvs[ 0 ], uvs[ 1 ], uvs[ 3 ] } );
// this.faceVertexUvs.Add(uvs0);
// }else{
// this.faceVertexUvs[faceIndex - 2] = new List<Vector2>( new Vector2[]{ uvs[ 0 ], uvs[ 1 ], uvs[ 3 ] } );
// }
// List<Vector2> uvs1;
// if(faceIndex - 1 >= this.faceVertexUvs.Count){
// uvs1 = new List<Vector2>( new Vector2[]{ uvs[ 1 ], uvs[ 2 ], uvs[ 3 ] } );
// this.faceVertexUvs.Add(uvs1);
// }else{
// this.faceVertexUvs[faceIndex - 1] = new List<Vector2>( new Vector2[]{ uvs[ 1 ], uvs[ 2 ], uvs[ 3 ] } );
// }
// this.faceVertexUvs.Add( new List<Vector2>( new Vector2[]{ Vector2.one, Vector2.one, Vector2.one, Vector2.one } )); // Debug
// this.faceVertexUvs.Add( new List<Vector2>( new Vector2[]{ Vector2.one, Vector2.one, Vector2.one, Vector2.one } )); // Debug
}
void processEdge(int a, int b, List <Vector3> vertices, Dictionary <string, Edge> map, Face3 face, MetaVertex[] metaVertices)
{
int vertexIndexA = Mathf.Min(a, b);
int vertexIndexB = Mathf.Max(a, b);
string key = vertexIndexA + "_" + vertexIndexB;
Edge edge;
//if ( key in map ) {
if (map.ContainsKey(key))
{
edge = map[key];
}
else
{
Vector3 vertexA = vertices[vertexIndexA];
Vector3 vertexB = vertices[vertexIndexB];
edge = new Edge();
edge.a = vertexA;
edge.b = vertexB;
edge.newEdge = -1;
edge.faces = new List <Face3>();
edge.key = key;
map[key] = edge;
}
edge.faces.Add(face);
metaVertices[a].edges.Add(edge);
metaVertices[b].edges.Add(edge);
}
//
public int mergeVertices()
{
//var verticesMap = {}; // Hashmap for looking up vertice by position coordinates (and making sure they are unique)
Dictionary <string, int> verticesMap = new Dictionary <string, int> ();
List <Vector3> unique = new List <Vector3> ();
List <int> changes = new List <int> ();
float precisionPoints = 4; // number of decimal points, eg. 4 for epsilon of 0.0001
float precision = Mathf.Pow(10, precisionPoints);
for (int i = 0, il = this.vertices.Count; i < il; i++)
{
Vector3 v = this.vertices [i];
string key = Mathf.Round(v.x * precision).ToString() + '_' + Mathf.Round(v.y * precision).ToString() + '_' + Mathf.Round(v.z * precision).ToString();
int changeId;
//if ( verticesMap[ key ] == null ) {
if (!verticesMap.ContainsKey(key))
{
verticesMap [key] = i;
unique.Add(this.vertices [i]);
//changes[ i ] = unique.Count - 1;
changeId = unique.Count - 1;
}
else
{
//console.log('Duplicate vertex found. ', i, ' could be using ', verticesMap[key]);
//changes[ i ] = changes[ verticesMap[ key ] ];
changeId = changes [verticesMap [key]];
}
changes.Add(changeId);
}
// if faces are completely degenerate after merging vertices, we
// have to remove them from the geometry.
List <int> faceIndicesToRemove = new List <int> ();
for (int i = 0, il = this.faces.Count; i < il; i++)
{
Face3 face = this.faces [i];
face.a = changes [face.a];
face.b = changes [face.b];
face.c = changes [face.c];
List <int> indices = new List <int> (new int[] { face.a, face.b, face.c });
//int dupIndex = -1;
// if any duplicate vertices are found in a Face3
// we have to remove the face as nothing can be saved
for (int n = 0; n < 3; n++)
{
if (indices [n] == indices [(n + 1) % 3])
{
//dupIndex = n;
faceIndicesToRemove.Add(i);
break;
}
}
}
for (int i = faceIndicesToRemove.Count - 1; i >= 0; i--)
{
int idx = faceIndicesToRemove [i];
this.faces.RemoveAt(idx);
for (int j = this.faceVertexUvs.Count - 1; j >= 0; j--)
{
this.faceVertexUvs [j].RemoveAt(idx);
}
}
// Use unique set of vertices
int diff = this.vertices.Count - unique.Count;
Debug.Log(diff);
this.vertices = unique;
return(diff);
}
public static Vector3 randomPointInFace(Face3 face, Geometry geometry, JsBoolean useCachedAreas)
{
return(null);
}
// Analytically subdivide a face to the required detail level.
void subdivide(Face3 face, int detail)
{
float cols = Mathf.Pow(2.0f, (float)detail);
//float cells = Mathf.Pow (4.0f, (float)detail);
THREEVector3 a = prepare(this.t_vertices [face.a]);
THREEVector3 b = prepare(this.t_vertices [face.b]);
THREEVector3 c = prepare(this.t_vertices [face.c]);
List <List <THREEVector3> > v = new List <List <THREEVector3> > ();
// Construct all of the vertices for this subdivision.
for (int i = 0; i <= cols; i++)
{
//v[ i ] = new List<THREEVector3>();
List <THREEVector3> vList = new List <THREEVector3> ();
v.Add(vList);
//v.Add (new List<THREEVector3>() );
THREEVector3 aj = prepare(a.clone().lerp(c, (float)i / cols));
THREEVector3 bj = prepare(b.clone().lerp(c, (float)i / cols));
int rows = (int)(cols - i);
for (int j = 0; j <= rows; j++)
{
THREEVector3 vv;
if (j == 0 && i == cols)
{
//v[ i ][ j ] = aj;
vv = aj;
}
else
{
//v[ i ][ j ] = prepare( aj.clone().lerp( bj, j / rows ) );
vv = prepare(aj.clone().lerp(bj, (float)j / rows));
}
vList.Add(vv);
}
}
// Construct all of the faces.
for (int i = 0; i < cols; i++)
{
for (int j = 0; j < 2 * (cols - i) - 1; j++)
{
int k = Mathf.FloorToInt((float)j / 2.0f);
if (j % 2 == 0)
{
make(
v [i] [k + 1],
v [i + 1] [k],
v [i] [k]
);
}
else
{
make(
v [i] [k + 1],
v [i + 1] [k + 1],
v [i + 1] [k]
);
}
}
}
}
/**
* Adds a shape to THREE.ShapeGeometry, based on THREE.ExtrudeGeometry.
*/
void addShape(Shape shape, Option options)
{
int curveSegments = options.curveSegments;
//Material material = options.material;
//var uvgen = options.UVGenerator === undefined ? THREE.ExtrudeGeometry.WorldUVGenerator : options.UVGenerator;
ExtrudeGeometry.WorldUVGenerator uvgen = options.UVGenerator;
if (uvgen == null)
{
uvgen = new ExtrudeGeometry.WorldUVGenerator();
}
//BoundingBox shapebb = this.shapebb;
//
int i, l;
int shapesOffset = this.vertices.Count;
ShapeAndHoleObject shapePoints = shape.extractPoints(curveSegments);
List <Vector3> vertices = shapePoints.shapeVertices;
List <List <Vector3> > holes = shapePoints.holes;
bool reverse = !Shape.Utils.isClockWise(vertices);
if (reverse)
{
//vertices = vertices.reverse();
vertices.Reverse();
// Maybe we should also check if holes are in the opposite direction, just to be safe...
for (i = 0, l = holes.Count; i < l; i++)
{
List <Vector3> hole = holes[i];
if (Shape.Utils.isClockWise(hole))
{
//holes[ i ] = hole.reverse();
hole.Reverse();
holes[i] = hole;
}
}
reverse = false;
}
List <List <int> > faces = Shape.Utils.triangulateShape(vertices, holes);
// Vertices
//var contour = vertices;
for (i = 0, l = holes.Count; i < l; i++)
{
List <Vector3> hole = holes[i];
//vertices = vertices.concat( hole );
vertices.AddRange(hole);
}
Vector3 vert;
int vlen = vertices.Count;
List <int> face;
int flen = faces.Count;
//var cont;
//int clen = contour.Count;
for (i = 0; i < vlen; i++)
{
vert = vertices[i];
this.vertices.Add(new Vector3(vert.x, vert.y, 0));
}
for (i = 0; i < flen; i++)
{
face = faces[i];
int a = face[0] + shapesOffset;
int b = face[1] + shapesOffset;
int c = face[2] + shapesOffset;
Face3 f = new Face3(a, b, c);
f.uvs = uvgen.generateBottomUV(this, shape, a, b, c).ToArray();
this.faces.Add(f);
//this.faceVertexUvs.Add( new List<Vector2>( new Vector2[]{ new Vector2(0.0f, 0.0f), new Vector2(0.0f, 0.0f), new Vector2(0.0f, 0.0f) })); // debug
}
}
public CylinderGeometry(float radiusTop = 5, float radiusBottom = 5, float height = 10, int radialSegments = 8, int heightSegments = 1, bool openEnded = false)
{
float heightHalf = height / 2.0f;
int x, y;
List <List <int> > vertices = new List <List <int> > ();
List <List <Vector2> > uvs = new List <List <Vector2> > ();
for (y = 0; y <= heightSegments; y++)
{
List <int> verticesRow = new List <int> ();
List <Vector2> uvsRow = new List <Vector2> ();
float v = (float)y / heightSegments;
float radius = v * (radiusBottom - radiusTop) + radiusTop;
for (x = 0; x <= radialSegments; x++)
{
float u = (float)x / radialSegments;
Vector3 vertex = new Vector3();
vertex.x = radius * Mathf.Sin(u * Mathf.PI * 2);
vertex.y = -v * height + heightHalf;
vertex.z = radius * Mathf.Cos(u * Mathf.PI * 2);
this.vertices.Add(vertex);
verticesRow.Add(this.vertices.Count - 1);
uvsRow.Add(new Vector2(u, 1 - v));
}
vertices.Add(verticesRow);
uvs.Add(uvsRow);
}
float tanTheta = (radiusBottom - radiusTop) / height;
Vector3 na, nb;
for (x = 0; x < radialSegments; x++)
{
if (radiusTop != 0)
{
na = (this.vertices [vertices [0] [x]]);
nb = (this.vertices [vertices [0] [x + 1]]);
}
else
{
na = (this.vertices [vertices [1] [x]]);
nb = (this.vertices [vertices [1] [x + 1]]);
}
na.y = (Mathf.Sqrt(na.x * na.x + na.z * na.z) * tanTheta);
nb.y = (Mathf.Sqrt(nb.x * nb.x + nb.z * nb.z) * tanTheta);
na.Normalize();
nb.Normalize();
for (y = 0; y < heightSegments; y++)
{
int v1 = vertices [y] [x];
int v2 = vertices [y + 1] [x];
int v3 = vertices [y + 1] [x + 1];
int v4 = vertices [y] [x + 1];
Vector3 n1 = (na);
Vector3 n2 = (na);
Vector3 n3 = (nb);
Vector3 n4 = (nb);
Vector2 uv1 = (uvs [y] [x]);
Vector2 uv2 = (uvs [y + 1] [x]);
Vector2 uv3 = (uvs [y + 1] [x + 1]);
Vector2 uv4 = (uvs [y] [x + 1]);
Face3 face0 = new Face3(v1, v2, v4, new Vector3[] { n1, n2, n4 });
face0.uvs = new Vector2[] { uv1, uv2, uv4 };
this.faces.Add(face0);
Face3 face1 = new Face3(v2, v3, v4, new Vector3[] { (n2), n3, (n4) });
face1.uvs = new Vector2[] {
(uv2),
uv3,
(uv4)
};
this.faces.Add(face1);
}
}
// top cap
if (openEnded == false && radiusTop > 0)
{
this.vertices.Add(new Vector3(0, heightHalf, 0));
for (x = 0; x < radialSegments; x++)
{
int v1 = vertices [0] [x];
int v2 = vertices [0] [x + 1];
int v3 = this.vertices.Count - 1;
Vector3 n1 = new Vector3(0, 1, 0);
Vector3 n2 = new Vector3(0, 1, 0);
Vector3 n3 = new Vector3(0, 1, 0);
Vector2 uv1 = (uvs [0] [x]);
Vector2 uv2 = (uvs [0] [x + 1]);
Vector2 uv3 = new Vector2(uv2.x, 0);
Face3 face = new Face3(v1, v2, v3, new Vector3[] { n1, n2, n3 });
face.uvs = new Vector2[] { uv1, uv2, uv3 };
this.faces.Add(face);
}
}
// bottom cap
if (openEnded == false && radiusBottom > 0)
{
this.vertices.Add(new Vector3(0, -heightHalf, 0));
for (x = 0; x < radialSegments; x++)
{
int v1 = vertices [y] [x + 1];
int v2 = vertices [y] [x];
int v3 = this.vertices.Count - 1;
Vector3 n1 = new Vector3(0, -1, 0);
Vector3 n2 = new Vector3(0, -1, 0);
Vector3 n3 = new Vector3(0, -1, 0);
Vector2 uv1 = (uvs [y] [x + 1]);
Vector2 uv2 = (uvs [y] [x]);
//Vector2 uv3 = new Vector2( uv2.u, 1 );
Vector2 uv3 = new Vector2(uv2.x, 1);
Face3 face = new Face3(v1, v2, v3, new Vector3[] { n1, n2, n3 });
face.uvs = new Vector2[] { uv1, uv2, uv3 };
this.faces.Add(face);
}
}
//this.mergeVertices ();
//this.computeVertexNormals();
this.computeFaceNormals();
}
public TorusKnotGeometry(float radius = 10, float tube = 4, int radialSegments = 64, int tubularSegments = 8, float p = 2, float q = 3, float heightScale = 1)
{
List <List <int> > grid = new List <List <int> > (radialSegments);
Vector3 tang = new Vector3();
Vector3 n = new Vector3();
Vector3 bitan = new Vector3();
for (int i = 0; i < radialSegments; ++i)
{
grid.Add(new List <int> (tubularSegments));
float u = (float)i / radialSegments * 2 * p * Mathf.PI;
Vector3 p1 = getPos(u, q, p, radius, heightScale);
Vector3 p2 = getPos(u + 0.01f, q, p, radius, heightScale);
//tang.subVectors( p2, p1 );
//n.addVectors( p2, p1 );
tang = p2 - p1;
n = p2 + p1;
//bitan.crossVectors( tang, n );
//n.crossVectors( bitan, tang );
bitan = Vector3.Cross(tang, n);
n = Vector3.Cross(bitan, tang);
bitan.Normalize();
n.Normalize();
for (int j = 0; j < tubularSegments; ++j)
{
float v = (float)j / tubularSegments * 2 * Mathf.PI;
float cx = -tube *Mathf.Cos(v); // TODO: Hack: Negating it so it faces outside.
float cy = tube * Mathf.Sin(v);
Vector3 pos = new Vector3();
pos.x = p1.x + cx * n.x + cy * bitan.x;
pos.y = p1.y + cx * n.y + cy * bitan.y;
pos.z = p1.z + cx * n.z + cy * bitan.z;
this.vertices.Add(pos);
//grid[ i ][ j ] = this.vertices.Count - 1;
grid [i].Add(this.vertices.Count - 1);
}
}
for (int i = 0; i < radialSegments; ++i)
{
for (int j = 0; j < tubularSegments; ++j)
{
int ip = (i + 1) % radialSegments;
int jp = (j + 1) % tubularSegments;
int a = grid [i] [j];
int b = grid [ip] [j];
int c = grid [ip] [jp];
int d = grid [i] [jp];
Vector2 uva = new Vector2((float)i / radialSegments, (float)j / tubularSegments);
Vector2 uvb = new Vector2((float)(i + 1) / radialSegments, (float)j / tubularSegments);
Vector2 uvc = new Vector2((float)(i + 1) / radialSegments, (float)(j + 1) / tubularSegments);
Vector2 uvd = new Vector2((float)i / radialSegments, (float)(j + 1) / tubularSegments);
Face3 face0 = new Face3(a, b, d);
face0.uvs = new Vector2[] { uva, uvb, uvd };
this.faces.Add(face0);
Face3 face1 = new Face3(b, c, d);
face1.uvs = new Vector2[] { (uvb), uvc, (uvd) };
this.faces.Add(face1);
}
}
this.computeFaceNormals();
this.computeVertexNormals();
}
// Use this for initialization
public ParametricGeometry(Func <float, float, Vector3> func, int slices, int stacks)
{
List <Vector3> verts = this.vertices;
List <Face3> faces = this.faces;
// List<List<Vector2>> uvs = this.faceVertexUvs;
//int i, j;
Vector3 p;
float u, v;
//int stackCount = stacks + 1;
int sliceCount = slices + 1;
for (int i = 0; i <= stacks; i++)
{
v = (float)i / stacks;
for (int j = 0; j <= slices; j++)
{
u = (float)j / slices;
p = func(u, v);
verts.Add(p);
}
}
int a, b, c, d;
Vector2 uva, uvb, uvc, uvd;
for (int i = 0; i < stacks; i++)
{
for (int j = 0; j < slices; j++)
{
a = i * sliceCount + j;
b = i * sliceCount + j + 1;
c = (i + 1) * sliceCount + j + 1;
d = (i + 1) * sliceCount + j;
uva = new Vector2((float)j / slices, (float)i / stacks);
uvb = new Vector2((float)(j + 1) / slices, (float)i / stacks);
uvc = new Vector2((float)(j + 1) / slices, (float)(i + 1) / stacks);
uvd = new Vector2((float)j / slices, (float)(i + 1) / stacks);
Face3 face0 = new Face3(a, b, d);
face0.uvs = new Vector2[] { uva, uvb, uvd };
faces.Add(face0);
Face3 face1 = new Face3(b, c, d);
face1.uvs = new Vector2[] { (uvb), uvc, (uvd) };
faces.Add(face1);
}
}
// console.log(this);
// magic bullet
// var diff = this.mergeVertices();
// console.log('removed ', diff, ' vertices by merging');
this.computeFaceNormals();
this.computeVertexNormals();
}
//float phiStart;
//float phiLength;
//float thetaStart;
//float thetaLength;
public SphereGeometry(float radius = 50, int widthSegments = 8, int heightSegments = 6, float phiStart = 0, float phiLength = Mathf.PI * 2, float thetaStart = 0, float thetaLength = Mathf.PI)
{
this.radius = radius;
this.widthSegments = widthSegments = Mathf.Max(3, Mathf.FloorToInt(widthSegments));
this.heightSegments = heightSegments = Mathf.Max(2, Mathf.FloorToInt(heightSegments));
//this.phiStart = phiStart;
//this.phiLength = phiLength;
//this.thetaStart = thetaStart;
//this.thetaLength = thetaLength;
int x, y;
List <List <int> > verticesIndex = new List <List <int> > ();
List <List <Vector2> > uvs = new List <List <Vector2> > ();
for (y = 0; y <= heightSegments; y++)
{
List <int> verticesRow = new List <int> ();
List <Vector2> uvsRow = new List <Vector2> ();
for (x = 0; x <= widthSegments; x++)
{
float u = (float)x / widthSegments;
float v = (float)y / heightSegments;
Vector3 vertex = new Vector3();
vertex.x = -radius *Mathf.Cos(phiStart + u *phiLength) * Mathf.Sin(thetaStart + v * thetaLength);
vertex.y = radius * Mathf.Cos(thetaStart + v * thetaLength);
vertex.z = radius * Mathf.Sin(phiStart + u * phiLength) * Mathf.Sin(thetaStart + v * thetaLength);
this.vertices.Add(vertex);
//Vector2 uv = new Vector2( u, 1 - v );
//this.uvs.Add( uv );
verticesRow.Add(this.vertices.Count - 1);
uvsRow.Add(new Vector2(u, 1 - v));
}
verticesIndex.Add(verticesRow);
uvs.Add(uvsRow);
}
for (y = 0; y < this.heightSegments; y++)
{
for (x = 0; x < this.widthSegments; x++)
{
int v1 = verticesIndex [y] [x + 1];
int v2 = verticesIndex [y] [x];
int v3 = verticesIndex [y + 1] [x];
int v4 = verticesIndex [y + 1] [x + 1];
Vector3 n1 = this.vertices[v1].normalized;
Vector3 n2 = this.vertices[v2].normalized;
Vector3 n3 = this.vertices[v3].normalized;
Vector3 n4 = this.vertices[v4].normalized;
// var uv1 = uvs[ y ][ x + 1 ].clone();
// var uv2 = uvs[ y ][ x ].clone();
// var uv3 = uvs[ y + 1 ][ x ].clone();
// var uv4 = uvs[ y + 1 ][ x + 1 ].clone();
Vector2 uv1 = uvs [y] [x + 1];
Vector2 uv2 = uvs [y] [x];
Vector2 uv3 = uvs [y + 1] [x];
Vector2 uv4 = uvs [y + 1] [x + 1];
if (Mathf.Abs(this.vertices [v1].y) == this.radius)
{
Face3 face = new Face3(v1, v3, v4, new Vector3[] { n1, n3, n4 });
face.uvs = new Vector2[] { uv1, uv3, uv4 };
this.faces.Add(face);
}
else if (Mathf.Abs(this.vertices [v3].y) == this.radius)
{
Face3 face = new Face3(v1, v2, v3, new Vector3[] { n1, n2, n3 });
face.uvs = new Vector2[] { uv1, uv2, uv3 };
this.faces.Add(face);
}
else
{
Face3 face0 = new Face3(v1, v2, v4, new Vector3[] { n1, n2, n4 });
face0.uvs = new Vector2[] { uv1, uv2, uv4 };
this.faces.Add(face0);
Face3 face1 = new Face3(v2, v3, v4, new Vector3[] { n2, n3, n4 });
face1.uvs = new Vector2[] { uv2, uv3, uv4 };
this.faces.Add(face1);
}
}
}
//this.computeFaceNormals();
//this.mergeVertices();
}
public RingGeometry(float innerRadius = 0, float outerRadius = 50, int thetaSegments = 8, int phiSegments = 8, float thetaStart = 0, float thetaLength = Mathf.PI * 2)
{
List <Vector2> uvs = new List <Vector2> ();
float radius = innerRadius;
float radiusStep = ((outerRadius - innerRadius) / (float)phiSegments);
for (int i = 0; i <= phiSegments; i++) // concentric circles inside ring
{
for (int o = 0; o <= thetaSegments; o++) // number of segments per circle
{
Vector3 vertex = new Vector3();
float segment = thetaStart + (float)o / thetaSegments * thetaLength;
vertex.x = radius * Mathf.Cos(segment);
vertex.y = radius * Mathf.Sin(segment);
this.vertices.Add(vertex);
uvs.Add(new Vector2((vertex.x / outerRadius + 1) / 2.0f, (vertex.y / outerRadius + 1) / 2.0f));
}
radius += radiusStep;
}
Vector3 n = new Vector3(0, 0, 1);
for (int i = 0; i < phiSegments; i++) // concentric circles inside ring
{
int thetaSegment = i * thetaSegments;
for (int o = 0; o <= thetaSegments; o++) // number of segments per circle
{
int segment = o + thetaSegment;
int v1 = segment + i;
int v2 = segment + thetaSegments + i;
int v3 = segment + thetaSegments + 1 + i;
Face3 face0 = new Face3(v1, v2, v3, new Vector3[] { n, n, n });
face0.uvs = new Vector2[] {
uvs [v1],
uvs [v2],
uvs [v3]
};
this.faces.Add(face0);
v1 = segment + i;
v2 = segment + thetaSegments + 1 + i;
v3 = segment + 1 + i;
Face3 face1 = new Face3(v1, v2, v3, new Vector3[] { n, n, n });
face1.uvs = new Vector2[] {
uvs [v1],
uvs [v2],
uvs [v3]
};
this.faces.Add(face1);
}
}
}
