public static bool Intersect(Ray a, Software.Mesh b, out object intersection)
{
var r = new Common.RayIntersection();
intersection = r;
Software.Triangle t;
Vector2 uv;
bool hit = b.Intersect(a, false, out t, out r.Distance, out uv);
r.Userdata = uv;
return(hit);
}
private Graphics.Software.Mesh MeshFromCoordinates(List<Common.Tuple<Vector3, Vector3>> coordinates)
{
List<Position3Normal3Texcoord3> vertices = new List<Position3Normal3Texcoord3>();
List<int> indices = new List<int>();
for (int i = 0; i < coordinates.Count; i++)
{
float texturecoord = 1 - ((float)i / (float)coordinates.Count) + offset;
if (texturecoord > 0.99f)
texturecoord = 0.99f;
vertices.Add(new Position3Normal3Texcoord3(coordinates[i].First, Vector3.Zero, new Vector3(texturecoord, 1, 0)));
vertices.Add(new Position3Normal3Texcoord3(coordinates[i].Second, Vector3.Zero, new Vector3(texturecoord, 0, 0)));
}
for (int i = 0; i < coordinates.Count - 1; i++)
{
indices.Add(i * 2);
indices.Add(i * 2 + 2);
indices.Add(i * 2 + 1);
indices.Add(i * 2 + 1);
indices.Add(i * 2 + 2);
indices.Add(i * 2 + 3);
indices.Add(i * 2 + 0);
indices.Add(i * 2 + 1);
indices.Add(i * 2 + 3);
indices.Add(i * 2 + 0);
indices.Add(i * 2 + 3);
indices.Add(i * 2 + 2);
}
Graphics.Software.Mesh mesh = new Graphics.Software.Mesh
{
NVertices = this.coordinates.Count * 2,
NFaces = this.coordinates.Count * 4 - 4,
MeshType = MeshType.Indexed,
VertexBuffer = new VertexBuffer<Position3Normal3Texcoord3>(vertices.ToArray()),
IndexBuffer = new IndexBuffer(indices.ToArray()),
VertexStreamLayout = global::Graphics.Software.Vertex.Position3Normal3Texcoord3.Instance,
};
return mesh;
}