
Hi, i didn't find ViewPort.Project method so i implemented it by myself, i hope someone, not only me, will find this useful :) I would be very much appreciated if you'll add this or your own implementation to source.
here is the code:
public Vector Project(Vector source, Matrix projection, Matrix view, Matrix world)
{
Matrix matrix = (world * view) * projection;
Vector vector = Vector.TransformNormal(source, matrix);
float a = (((source.X * matrix[0, 3]) + (source.Y * matrix[1, 3])) + (source.Z * matrix[2, 3])) + matrix[3, 3];
if (!WithinEpsilon(a, 1f))
{
vector = (Vector)(vector / (a));
}
vector.X = (((vector.X + 1f) * 0.5f) * Width);
vector.Y = (((vector.Y + 1f) * 0.5f) * Height);
vector.Z = (vector.Z * (MaxDepth  MinDepth)) + MinDepth;
return vector;
}


Coordinator
Aug 5, 2010 at 5:12 PM

Excellent. I can sure add it, thanks for the contribution  would it be OK if I changed the signature a bit? The projection and view matrix is accessible in the Viewport.



Sure, no problem. Thank you.


Coordinator
Aug 5, 2010 at 5:36 PM

Implemented and pushed :)

