public Matrix4x4 CreateRotationMatrix()
{
var rotation = Matrix4x4.CreateRotationX(BundtMaths.DegressToRadians(Rotation.X));
rotation *= Matrix4x4.CreateRotationY(BundtMaths.DegressToRadians(Rotation.Y));
rotation *= Matrix4x4.CreateRotationZ(BundtMaths.DegressToRadians(Rotation.Z));
return(rotation);
}
public Matrix4x4 CreateProjectionMatrix(uint screenWidth, uint screenHeight)
{
var aspectRatio = screenWidth / (float)screenHeight;
var projection = Matrix4x4.CreatePerspectiveFieldOfView(BundtMaths.DegressToRadians(VerticalFieldOfView), aspectRatio, NearClippingPlane, FarClippingPlane);
// Flipping view
projection.M22 *= -1;
return(projection);
}
public Matrix4x4 CreateViewMatrix()
{
var forwardVector = new Vector3(0, 0, 1);
var forwardMat = Matrix4x4.CreateRotationX(BundtMaths.DegressToRadians(Transform.Rotation.X));
forwardMat *= Matrix4x4.CreateRotationY(BundtMaths.DegressToRadians(Transform.Rotation.Y));
forwardMat *= Matrix4x4.CreateRotationZ(BundtMaths.DegressToRadians(Transform.Rotation.Z));
forwardVector = Vector3.Transform(forwardVector, forwardMat);
var upVector = new Vector3(0, 1, 0);
upVector = Vector3.Transform(upVector, forwardMat);
return(Matrix4x4.CreateLookAt(Transform.Position, Transform.Position + forwardVector, upVector));
}