public static Vector2[] WorldToScreen(Matrix4x4 viewMatrix, Size2 screenSize, params Vector3[] points)
{
Vector2[] worlds = new Vector2[points.Length];
for (int i = 0; i < worlds.Length; i++)
worlds[i] = WorldToScreen(viewMatrix, screenSize, points[i]);
return worlds;
}
public static Matrix4x4 ReadMatrix(IntPtr handle, Int64 _lpBaseAddress)
{
Matrix4x4 tmp = new Matrix4x4();
byte[] Buffer = WinAPI.ReadMemory(handle, _lpBaseAddress, 64);
tmp.M11 = BitConverter.ToSingle(Buffer, (0 * 4));
tmp.M12 = BitConverter.ToSingle(Buffer, (1 * 4));
tmp.M13 = BitConverter.ToSingle(Buffer, (2 * 4));
tmp.M14 = BitConverter.ToSingle(Buffer, (3 * 4));
tmp.M21 = BitConverter.ToSingle(Buffer, (4 * 4));
tmp.M22 = BitConverter.ToSingle(Buffer, (5 * 4));
tmp.M23 = BitConverter.ToSingle(Buffer, (6 * 4));
tmp.M24 = BitConverter.ToSingle(Buffer, (7 * 4));
tmp.M31 = BitConverter.ToSingle(Buffer, (8 * 4));
tmp.M32 = BitConverter.ToSingle(Buffer, (9 * 4));
tmp.M33 = BitConverter.ToSingle(Buffer, (10 * 4));
tmp.M34 = BitConverter.ToSingle(Buffer, (11 * 4));
tmp.M41 = BitConverter.ToSingle(Buffer, (12 * 4));
tmp.M42 = BitConverter.ToSingle(Buffer, (13 * 4));
tmp.M43 = BitConverter.ToSingle(Buffer, (14 * 4));
tmp.M44 = BitConverter.ToSingle(Buffer, (15 * 4));
return tmp;
}
public static Vector2 WorldToScreen(Matrix4x4 viewMatrix, Size2 screenSize, Vector3 point)
{
Vector2 returnVector = Vector2.Zero;
float w = viewMatrix.M41 * point.X + viewMatrix.M42 * point.Y + viewMatrix.M43 * point.Z + viewMatrix.M44;
if (w >= 0.01f)
{
float inverseWidth = 1f / w;
returnVector.X =
(screenSize.Width / 2f) +
(0.5f * (
(viewMatrix.M11 * point.X + viewMatrix.M12 * point.Y + viewMatrix.M13 * point.Z + viewMatrix.M14)
* inverseWidth)
* screenSize.Width + 0.5f);
returnVector.Y =
(screenSize.Height / 2f) -
(0.5f * (
(viewMatrix.M21 * point.X + viewMatrix.M22 * point.Y + viewMatrix.M23 * point.Z + viewMatrix.M24)
* inverseWidth)
* screenSize.Height + 0.5f);
}
return returnVector;
}
