public static ModelPart GenerateTube(float Length, float Radius, int Sections, bool StartCap, bool EndCap)
{
ModelPart result = new ModelPart();
int ringSize = 6;
float Delta = Length / (float)Sections;
Vector3 Offset = new Vector3(Radius, 0, 0);
ModelVertex[] vertices = new ModelVertex[ringSize*(Sections-1)];
for (int j = 0; j < Sections + 1; j++)
{
for (int i = 0; i < ringSize; i++)
{
ModelVertex v = new ModelVertex();
v.Position = Vector3.Transform(
Vector3.Transform(
Offset,
Matrix.CreateRotationY(MathHelper.TwoPi * ((float)i / (float)(ringSize)))
),
Matrix.CreateTranslation(new Vector3(0, Delta * j, 0))
);
v.BoneWeightData.X = (float)j / (float)Sections;
vertices[i * ringSize + i] = v;
}
}
int[] indices = new int[(ringSize * 2) * Sections * 3];
int[] quad = { 0, ringSize, ringSize + 1, 1 };
for(int i=0;i<Sections;i++)
{
for (int j=0;j<ringSize-1;j++)
{
int di = i * ringSize*6 + j*6;
indices[di++] = quad[0] + (i * ringSize)+j;
indices[di++] = quad[1] + (i * ringSize)+j;
indices[di++] = quad[2] + (i * ringSize)+j;
indices[di++] = quad[2] + (i * ringSize)+j;
indices[di++] = quad[3] + (i * ringSize)+j;
indices[di++] = quad[0] + (i * ringSize)+j;
}
int index = i * ringSize * 6 + (ringSize-1) * 6;
indices[index++] = i * ringSize + ringSize - 1;
indices[index++] = ringSize + i * ringSize + ringSize - 1;
indices[index++] = ringSize + 1 + i * ringSize + ringSize - 1 - ringSize;
indices[index++] = ringSize + 1 + i * ringSize + ringSize - 1 - ringSize;
indices[index++] = i * ringSize + ringSize - 1-ringSize+1;
indices[index++] = i * ringSize + ringSize - 1;
}
result.SetVertices(vertices);
return result;
}
