/// <summary>
/// Creates the VBO and IBO for a cube.
/// </summary>
/// <returns>Returns the length of the IBO array.</returns>
private int createCube()
{
//List of vertices for a cube.
VertexN3fV3f[] VertexListCube = new VertexN3fV3f[]
{
//Bottom face vertices
new VertexN3fV3f(new Vector3(0.0f, -1.0f, 0.0f), new Vector3(-0.5f, -0.5f, 0.5f)),
new VertexN3fV3f(new Vector3(0.0f, -1.0f, 0.0f), new Vector3(-0.5f, -0.5f, -0.5f)),
new VertexN3fV3f(new Vector3(0.0f, -1.0f, 0.0f), new Vector3(0.5f, -0.5f, -0.5f)),
new VertexN3fV3f(new Vector3(0.0f, -1.0f, 0.0f), new Vector3(0.5f, -0.5f, 0.5f)),
//Top face vertices
new VertexN3fV3f(new Vector3(0.0f, 1.0f, 0.0f), new Vector3(-0.5f, 0.5f, 0.5f)),
new VertexN3fV3f(new Vector3(0.0f, 1.0f, 0.0f), new Vector3(-0.5f, 0.5f, -0.5f)),
new VertexN3fV3f(new Vector3(0.0f, 1.0f, 0.0f), new Vector3(0.5f, 0.5f, -0.5f)),
new VertexN3fV3f(new Vector3(0.0f, 1.0f, 0.0f), new Vector3(0.5f, 0.5f, 0.5f)),
//Left face vertices
new VertexN3fV3f(new Vector3(0.0f, -1.0f, 0.0f), new Vector3(-0.5f, -0.5f, 0.5f)),
new VertexN3fV3f(new Vector3(0.0f, -1.0f, 0.0f), new Vector3(-0.5f, -0.5f, -0.5f)),
new VertexN3fV3f(new Vector3(0.0f, -1.0f, 0.0f), new Vector3(-0.5f, 0.5f, -0.5f)),
new VertexN3fV3f(new Vector3(0.0f, -1.0f, 0.0f), new Vector3(-0.5f, 0.5f, 0.5f)),
//Right face vertices
new VertexN3fV3f(new Vector3(0.0f, 1.0f, 0.0f), new Vector3(0.5f, -0.5f, 0.5f)),
new VertexN3fV3f(new Vector3(0.0f, 1.0f, 0.0f), new Vector3(0.5f, -0.5f, -0.5f)),
new VertexN3fV3f(new Vector3(0.0f, 1.0f, 0.0f), new Vector3(0.5f, 0.5f, -0.5f)),
new VertexN3fV3f(new Vector3(0.0f, 1.0f, 0.0f), new Vector3(0.5f, 0.5f, 0.5f)),
//Front face vertices
new VertexN3fV3f(new Vector3(0.0f, 0.0f, 1.0f), new Vector3(-0.5f, -0.5f, 0.5f)),
new VertexN3fV3f(new Vector3(0.0f, 0.0f, 1.0f), new Vector3(-0.5f, 0.5f, 0.5f)),
new VertexN3fV3f(new Vector3(0.0f, 0.0f, 1.0f), new Vector3(0.5f, 0.5f, 0.5f)),
new VertexN3fV3f(new Vector3(0.0f, 0.0f, 1.0f), new Vector3(0.5f, -0.5f, 0.5f)),
//Back face vertices
new VertexN3fV3f(new Vector3(0.0f, 0.0f, -1.0f), new Vector3(-0.5f, -0.5f, -0.5f)),
new VertexN3fV3f(new Vector3(0.0f, 0.0f, -1.0f), new Vector3(-0.5f, 0.5f, -0.5f)),
new VertexN3fV3f(new Vector3(0.0f, 0.0f, -1.0f), new Vector3(0.5f, 0.5f, -0.5f)),
new VertexN3fV3f(new Vector3(0.0f, 0.0f, -1.0f), new Vector3(0.5f, -0.5f, -0.5f)),
};
//Element list for a cube using triangles and the VertexListCube.
ushort[] ElementsListCube = new ushort[]
{
0, 1, 2, 2, 3, 0, //bottom face
4, 5, 6, 6, 7, 4, //top face
8, 9, 10, 10, 11, 8, //left face
12, 13, 14, 14, 15, 12, //right face
16, 17, 18, 18, 19, 16, //front face
20, 21, 22, 22, 23, 20 //back face
};
LoadIntoGraphicsMemory(VertexListCube, ElementsListCube);
return(ElementsListCube.Length);
}
private int createPyramid()
{
Vector3 bottomFront = new Vector3(0.0f, (float)-Math.Sqrt(2) / 3 * SCALE, 1.0f * SCALE);
Vector3 bottomLeftBack = new Vector3((float)-Math.Cos(Math.PI / 6) * SCALE, (float)-Math.Sqrt(2) / 3 * SCALE, (float)-Math.Sin(Math.PI / 6) * SCALE);
Vector3 bottomRightBack = new Vector3((float)Math.Cos(Math.PI / 6) * SCALE, (float)-Math.Sqrt(2) / 3 * SCALE, (float)-Math.Sin(Math.PI / 6) * SCALE);
Vector3 top = new Vector3(0.0f, (float)Math.Sqrt(2) * 2 / 3 * SCALE, 0.0f);
Vector3 leftFaceNormal = Vector3.Cross(bottomLeftBack - top, bottomFront - top);
leftFaceNormal.Normalize();
Vector3 rightFaceNormal = Vector3.Cross(bottomFront - top, bottomRightBack - top);
rightFaceNormal.Normalize();
Vector3 backFaceNormal = Vector3.Cross(bottomRightBack - top, bottomLeftBack - top);
backFaceNormal.Normalize();
//List of vertices for a cube.
VertexN3fV3f[] VertexListPyramid = new VertexN3fV3f[]
{
//Bottom face vertices
new VertexN3fV3f(new Vector3(0.0f, -1.0f, 0.0f), bottomFront),
new VertexN3fV3f(new Vector3(0.0f, -1.0f, 0.0f), bottomLeftBack),
new VertexN3fV3f(new Vector3(0.0f, -1.0f, 0.0f), bottomRightBack),
//Left face vertices
new VertexN3fV3f(leftFaceNormal, bottomFront),
new VertexN3fV3f(leftFaceNormal, bottomLeftBack),
new VertexN3fV3f(leftFaceNormal, top),
//Right face vertices
new VertexN3fV3f(rightFaceNormal, bottomFront),
new VertexN3fV3f(rightFaceNormal, top),
new VertexN3fV3f(rightFaceNormal, bottomRightBack),
//Back face vertices
new VertexN3fV3f(backFaceNormal, bottomLeftBack),
new VertexN3fV3f(backFaceNormal, bottomRightBack),
new VertexN3fV3f(backFaceNormal, top),
};
//Element list for a cube using triangles and the VertexListCube.
ushort[] ElementsListPyramid = new ushort[]
{
0, 1, 2, //bottom face
3, 4, 5, //left face
6, 7, 8, //right face
9, 10, 11 //back face
};
LoadIntoGraphicsMemory(VertexListPyramid, ElementsListPyramid);
return(ElementsListPyramid.Length);
}