public void Project(object viewport, Matrix4d projection, Matrix4d view, Matrix4d world)
{
//Microsoft.DirectX.Vector3 test = ConvertDX.FromVector3d(this);
//test.Project(viewport, ConvertDX.FromMatrix4d(projection), ConvertDX.FromMatrix4d(view), ConvertDX.FromMatrix4d(world));
Viewport2d vp = ConvertDX.ToViewport2d((Microsoft.DirectX.Direct3D.Viewport)viewport);
Matrix4d m = world * view * projection;
double w = 1.0;
MultiplyMatrix(m, ref w);
this.X /= w;
this.Y /= w;
this.Z /= w;
// Make x/y range from 0 to 1
this.X = this.X * 0.5 + 0.5;
this.Y = this.Y * 0.5 + 0.5;
// Convert to to viewport coordinates (Y is inverted)
this.X = this.X * vp.Width + vp.X;
this.Y = vp.Height - this.Y * vp.Height + vp.Y;
}
public void Unproject(object viewport, Matrix4d projection, Matrix4d view, Matrix4d world)
{
//Microsoft.DirectX.Vector3 test = ConvertDX.FromVector3d(this);
//test.Unproject(viewport, ConvertDX.FromMatrix4d(projection), ConvertDX.FromMatrix4d(view), ConvertDX.FromMatrix4d(world));
Viewport2d vp = ConvertDX.ToViewport2d((Microsoft.DirectX.Direct3D.Viewport)viewport);
// Convert from viewport coordinates
this.X = (this.X - vp.X) / vp.Width;
this.Y = (vp.Height + vp.Y - this.Y) / vp.Height;
// Make x/y range from -1 to 1
this.X = this.X * 2.0 - 1.0;
this.Y = this.Y * 2.0 - 1.0;
Matrix4d m = Matrix4d.Invert(world * view * projection);
double w = 1.0;
MultiplyMatrix(m, ref w);
this.X /= w;
this.Y /= w;
this.Z /= w;
}
