public static void GetArray(ref List<Chunk> c, out VertexT2dN3dV3d[] vbo, out uint[] ibo)
{
uint VertexCounter = 0;
uint IndexCounter = 0;
foreach (Chunk ch in c)
{
VertexCounter += ch.VertexCount;
IndexCounter += ch.IndexCount;
}
vbo = new VertexT2dN3dV3d[VertexCounter];
ibo = new uint[IndexCounter];
VertexCounter = 0;
IndexCounter = 0;
foreach (Chunk ch in c)
{
for (int i = 0; i < ch.Vertices.Length; i++)
{
vbo[VertexCounter + i] = ch.Vertices[i];
}
for (int i = 0; i < ch.Indices.Length; i++)
{
ibo[IndexCounter + i] = ch.Indices[i] + VertexCounter;
}
VertexCounter += (uint)ch.VertexCount;
IndexCounter += (uint)ch.IndexCount;
}
}
public Chunk(ref VertexT2dN3dV3d[] vbo, ref uint[] ibo)
{
Vertices = new VertexT2dN3dV3d[vbo.Length];
for (int i = 0; i < Vertices.Length; i++)
{
Vertices[i] = vbo[i];
}
Indices = new uint[ibo.Length];
for (int i = 0; i < Indices.Length; i++)
{
Indices[i] = ibo[i];
}
}
private void Subdivide(double Scale, ref VertexT2dN3dV3d first, ref VertexT2dN3dV3d second, ref VertexT2dN3dV3d third, out Chunk c)
{
c = new Chunk(6, 12);
c.Vertices[0] = first;
Vector3d.Lerp(ref first.Position, ref second.Position, 0.5, out c.Vertices[1].Normal);
c.Vertices[1].Normal.Normalize();
c.Vertices[1].Position = c.Vertices[1].Normal * Scale;
Vector2d.Lerp(ref first.TexCoord, ref second.TexCoord, 0.5, out c.Vertices[1].TexCoord);
Vector3d.Lerp(ref third.Position, ref first.Position, 0.5, out c.Vertices[2].Normal);
c.Vertices[2].Normal.Normalize();
c.Vertices[2].Position = c.Vertices[2].Normal * Scale;
Vector2d.Lerp(ref third.TexCoord, ref first.TexCoord, 0.5, out c.Vertices[2].TexCoord);
c.Vertices[3] = second;
Vector3d.Lerp(ref second.Position, ref third.Position, 0.5, out c.Vertices[4].Normal);
c.Vertices[4].Normal.Normalize();
c.Vertices[4].Position = c.Vertices[4].Normal * Scale;
Vector2d.Lerp(ref second.TexCoord, ref third.TexCoord, 0.5, out c.Vertices[4].TexCoord);
c.Vertices[5] = third;
#region Indices
c.Indices[0] = 0;
c.Indices[1] = 1;
c.Indices[2] = 2;
c.Indices[3] = 2;
c.Indices[4] = 1;
c.Indices[5] = 4;
c.Indices[6] = 1;
c.Indices[7] = 3;
c.Indices[8] = 4;
c.Indices[9] = 2;
c.Indices[10] = 4;
c.Indices[11] = 5;
#endregion Indices
}
public SlicedSphere(double radius, Vector3d offset, eSubdivisions subdivs, eDir[] sides, bool useDL)
: base(useDL)
{
double Diameter = radius;
PrimitiveMode = OpenTK.Graphics.OpenGL.BeginMode.Triangles;
if (sides[0] == eDir.All)
{
sides = new eDir[] { eDir.FrontTopRight,
eDir.FrontBottomRight,
eDir.FrontBottomLeft,
eDir.FrontTopLeft,
eDir.BackTopRight,
eDir.BackBottomRight,
eDir.BackBottomLeft,
eDir.BackTopLeft,};
}
VertexArray = new VertexT2dN3dV3d[sides.Length * 3];
IndexArray = new uint[sides.Length * 3];
uint counter = 0;
foreach (eDir s in sides)
{
GetDefaultVertices(s, Diameter, out VertexArray[counter + 0], out VertexArray[counter + 1], out VertexArray[counter + 2]);
IndexArray[counter + 0] = counter + 0;
IndexArray[counter + 1] = counter + 1;
IndexArray[counter + 2] = counter + 2;
counter += 3;
}
if (subdivs != eSubdivisions.Zero)
{
for (int s = 0; s < (int)subdivs; s++)
{
#region Assemble Chunks and convert to Arrays
List<Chunk> AllChunks = new List<Chunk>();
for (uint i = 0; i < IndexArray.Length; i += 3)
{
Chunk chu;
Subdivide(Diameter,
ref VertexArray[IndexArray[i + 0]],
ref VertexArray[IndexArray[i + 1]],
ref VertexArray[IndexArray[i + 2]],
out chu);
AllChunks.Add(chu);
}
Chunk.GetArray(ref AllChunks, out VertexArray, out IndexArray);
AllChunks.Clear();
#endregion Assemble Chunks and convert to Arrays
}
}
for (int i = 0; i < VertexArray.Length; i++)
{
Vector3d.Add(ref VertexArray[i].Position, ref offset, out VertexArray[i].Position);
}
}
private void GetDefaultVertices(eDir s, double scale, out VertexT2dN3dV3d first, out VertexT2dN3dV3d second, out VertexT2dN3dV3d third)
{
VertexT2dN3dV3d t1 = new VertexT2dN3dV3d(),
t2 = new VertexT2dN3dV3d(),
t3 = new VertexT2dN3dV3d();
switch (s)
{
case eDir.FrontTopRight:
t1 = new VertexT2dN3dV3d(new Vector2d(0.5, 1.0), Vector3d.UnitY, Vector3d.UnitY * scale);
t2 = new VertexT2dN3dV3d(new Vector2d(0.0, 0.0), Vector3d.UnitZ, Vector3d.UnitZ * scale);
t3 = new VertexT2dN3dV3d(new Vector2d(0.5, 0.0), Vector3d.UnitX, Vector3d.UnitX * scale);
break;
case eDir.FrontBottomRight:
t1 = new VertexT2dN3dV3d(new Vector2d(0.5, 0.0), Vector3d.UnitX, Vector3d.UnitX * scale);
t2 = new VertexT2dN3dV3d(new Vector2d(0.0, 0.0), Vector3d.UnitZ, Vector3d.UnitZ * scale);
t3 = new VertexT2dN3dV3d(new Vector2d(0.5, 1.0), -Vector3d.UnitY, -Vector3d.UnitY * scale);
break;
case eDir.FrontBottomLeft:
t1 = new VertexT2dN3dV3d(new Vector2d(0.5, 0.0), Vector3d.UnitX, Vector3d.UnitX * scale);
t2 = new VertexT2dN3dV3d(new Vector2d(0.5, 1.0), -Vector3d.UnitY, -Vector3d.UnitY * scale);
t3 = new VertexT2dN3dV3d(new Vector2d(1.0, 0.0), -Vector3d.UnitZ, -Vector3d.UnitZ * scale);
break;
case eDir.FrontTopLeft:
t1 = new VertexT2dN3dV3d(new Vector2d(1.0, 0.0), -Vector3d.UnitZ, -Vector3d.UnitZ * scale);
t2 = new VertexT2dN3dV3d(new Vector2d(0.5, 1.0), Vector3d.UnitY, Vector3d.UnitY * scale);
t3 = new VertexT2dN3dV3d(new Vector2d(0.5, 0.0), Vector3d.UnitX, Vector3d.UnitX * scale);
break;
case eDir.BackTopRight:
t1 = new VertexT2dN3dV3d(new Vector2d(0.5, 1.0), Vector3d.UnitY, Vector3d.UnitY * scale);
t2 = new VertexT2dN3dV3d(new Vector2d(0.0, 1.0), -Vector3d.UnitX, -Vector3d.UnitX * scale);
t3 = new VertexT2dN3dV3d(new Vector2d(0.0, 0.0), Vector3d.UnitZ, Vector3d.UnitZ * scale);
break;
case eDir.BackBottomRight:
t1 = new VertexT2dN3dV3d(new Vector2d(0.5, 1.0), -Vector3d.UnitY, -Vector3d.UnitY * scale);
t2 = new VertexT2dN3dV3d(new Vector2d(0.0, 0.0), Vector3d.UnitZ, Vector3d.UnitZ * scale);
t3 = new VertexT2dN3dV3d(new Vector2d(0.0, 1.0), -Vector3d.UnitX, -Vector3d.UnitX * scale);
break;
case eDir.BackBottomLeft:
t1 = new VertexT2dN3dV3d(new Vector2d(0.5, 1.0), -Vector3d.UnitY, -Vector3d.UnitY * scale);
t2 = new VertexT2dN3dV3d(new Vector2d(1.0, 1.0), -Vector3d.UnitX, -Vector3d.UnitX * scale);
t3 = new VertexT2dN3dV3d(new Vector2d(1.0, 0.0), -Vector3d.UnitZ, -Vector3d.UnitZ * scale);
break;
case eDir.BackTopLeft:
t1 = new VertexT2dN3dV3d(new Vector2d(0.5, 1.0), Vector3d.UnitY, Vector3d.UnitY * scale);
t2 = new VertexT2dN3dV3d(new Vector2d(1.0, 0.0), -Vector3d.UnitZ, -Vector3d.UnitZ * scale);
t3 = new VertexT2dN3dV3d(new Vector2d(1.0, 1.0), -Vector3d.UnitX, -Vector3d.UnitX * scale);
break;
}
first = t1;
second = t2;
third = t3;
}
public void GetArraysforVBO(out BeginMode primitives, out VertexT2dN3dV3d[] vertices, out uint[] indices)
{
primitives = PrimitiveMode;
vertices = new VertexT2dN3dV3d[VertexArray.Length];
for (uint i = 0; i < VertexArray.Length; i++)
{
vertices[i].TexCoord = VertexArray[i].TexCoord;
vertices[i].Normal = VertexArray[i].Normal;
vertices[i].Position = VertexArray[i].Position;
}
indices = IndexArray;
}