public void GenerateUnitQuad()
{
Vector3[] vertices = new Vector3[]
{
new Vector3( 1, 0, 1),
new Vector3( 1, 0, -1),
new Vector3(-1, 0, 1),
new Vector3(-1, 0, -1),
};
Vector2[] uv = new Vector2[]
{
new Vector2(1, 1),
new Vector2(1, 0),
new Vector2(0, 1),
new Vector2(0, 0),
};
int[] triangles = new int[]
{
0, 1, 2,
2, 1, 3,
};
RenderTriangle tri1 = new RenderTriangle();
tri1.SetPoints(vertices[triangles[0]], vertices[triangles[1]], vertices[triangles[2]]);
tri1.SetUV(uv[triangles[0]], uv[triangles[1]], uv[triangles[2]]);
RenderTriangle tri2 = new RenderTriangle();
tri2.SetPoints(vertices[triangles[3]], vertices[triangles[4]], vertices[triangles[5]]);
tri2.SetUV(uv[triangles[3]], uv[triangles[4]], uv[triangles[5]]);
AddTriangle(tri1);
AddTriangle(tri2);
}
public void GenerateUnitQuad()
{
Vector3[] vertices = new Vector3[]
{
new Vector3(1, 0, 1),
new Vector3(1, 0, -1),
new Vector3(-1, 0, 1),
new Vector3(-1, 0, -1),
};
Vector2[] uv = new Vector2[]
{
new Vector2(1, 1),
new Vector2(1, 0),
new Vector2(0, 1),
new Vector2(0, 0),
};
int[] triangles = new int[]
{
0, 1, 2,
2, 1, 3,
};
RenderTriangle tri1 = new RenderTriangle();
tri1.SetPoints(vertices[triangles[0]], vertices[triangles[1]], vertices[triangles[2]]);
tri1.SetUV(uv[triangles[0]], uv[triangles[1]], uv[triangles[2]]);
RenderTriangle tri2 = new RenderTriangle();
tri2.SetPoints(vertices[triangles[3]], vertices[triangles[4]], vertices[triangles[5]]);
tri2.SetUV(uv[triangles[3]], uv[triangles[4]], uv[triangles[5]]);
AddTriangle(tri1);
AddTriangle(tri2);
}
private void Split()
{
NDPlane plane = new NDPlane();
plane.ComputePlane((mpta + mptb + mptc) / 3, RandomVector3());
List <Vector3> upper = new List <Vector3>();
List <Vector3> lower = new List <Vector3>();
List <Vector3> intersection = new List <Vector3>();
plane.IntersectTriangleHull(mpta, mptb, mptc, upper, lower, intersection);
upper.AddRange(intersection);
lower.AddRange(intersection);
List <int> indices = new List <int>();
// UPPER HULL
Triangulator.TriangulateNDSlice(upper, indices);
for (int i = 0; i < indices.Count; i += 3)
{
RenderTriangle tri = new RenderTriangle();
Vector3 pta = upper[indices[i]];
Vector3 ptb = upper[indices[i + 1]];
Vector3 ptc = upper[indices[i + 2]];
Vector2 uva = Triangulator.GenerateUVCoords(ref mpta, ref mptb, ref mptc, ref muva, ref muvb, ref muvc, ref pta);
Vector2 uvb = Triangulator.GenerateUVCoords(ref mpta, ref mptb, ref mptc, ref muva, ref muvb, ref muvc, ref ptb);
Vector2 uvc = Triangulator.GenerateUVCoords(ref mpta, ref mptb, ref mptc, ref muva, ref muvb, ref muvc, ref ptc);
tri.SetPoints(pta, ptb, ptc);
tri.SetUV(uva, uvb, uvc);
splits.Add(tri);
}
indices.Clear();
// LOWER HULL
Triangulator.TriangulateNDSlice(lower, indices);
for (int i = 0; i < indices.Count; i += 3)
{
RenderTriangle tri = new RenderTriangle();
Vector3 pta = lower[indices[i]];
Vector3 ptb = lower[indices[i + 1]];
Vector3 ptc = lower[indices[i + 2]];
Vector2 uva = Triangulator.GenerateUVCoords(ref mpta, ref mptb, ref mptc, ref muva, ref muvb, ref muvc, ref pta);
Vector2 uvb = Triangulator.GenerateUVCoords(ref mpta, ref mptb, ref mptc, ref muva, ref muvb, ref muvc, ref ptb);
Vector2 uvc = Triangulator.GenerateUVCoords(ref mpta, ref mptb, ref mptc, ref muva, ref muvb, ref muvc, ref ptc);
tri.SetPoints(pta, ptb, ptc);
tri.SetUV(uva, uvb, uvc);
splits.Add(tri);
}
}
private void Split()
{
NDPlane plane = new NDPlane();
plane.ComputePlane((mpta + mptb + mptc) / 3, RandomVector3());
List<Vector3> upper = new List<Vector3>();
List<Vector3> lower = new List<Vector3>();
List<Vector3> intersection = new List<Vector3>();
plane.IntersectTriangleHull(mpta, mptb, mptc, upper, lower, intersection);
upper.AddRange(intersection);
lower.AddRange(intersection);
List<int> indices = new List<int>();
// UPPER HULL
Triangulator.TriangulateNDSlice(upper, indices);
for (int i = 0; i < indices.Count; i += 3) {
RenderTriangle tri = new RenderTriangle();
Vector3 pta = upper[indices[i]];
Vector3 ptb = upper[indices[i+1]];
Vector3 ptc = upper[indices[i+2]];
Vector2 uva = Triangulator.GenerateUVCoords(ref mpta, ref mptb, ref mptc, ref muva, ref muvb, ref muvc, ref pta);
Vector2 uvb = Triangulator.GenerateUVCoords(ref mpta, ref mptb, ref mptc, ref muva, ref muvb, ref muvc, ref ptb);
Vector2 uvc = Triangulator.GenerateUVCoords(ref mpta, ref mptb, ref mptc, ref muva, ref muvb, ref muvc, ref ptc);
tri.SetPoints(pta, ptb, ptc);
tri.SetUV(uva, uvb, uvc);
splits.Add(tri);
}
indices.Clear();
// LOWER HULL
Triangulator.TriangulateNDSlice(lower, indices);
for (int i = 0; i < indices.Count; i += 3) {
RenderTriangle tri = new RenderTriangle();
Vector3 pta = lower[indices[i]];
Vector3 ptb = lower[indices[i + 1]];
Vector3 ptc = lower[indices[i + 2]];
Vector2 uva = Triangulator.GenerateUVCoords(ref mpta, ref mptb, ref mptc, ref muva, ref muvb, ref muvc, ref pta);
Vector2 uvb = Triangulator.GenerateUVCoords(ref mpta, ref mptb, ref mptc, ref muva, ref muvb, ref muvc, ref ptb);
Vector2 uvc = Triangulator.GenerateUVCoords(ref mpta, ref mptb, ref mptc, ref muva, ref muvb, ref muvc, ref ptc);
tri.SetPoints(pta, ptb, ptc);
tri.SetUV(uva, uvb, uvc);
splits.Add(tri);
}
}