Unigine.WorldIntersectionNormal Class

/* ... */
// initialize points of the mouse direction
Vec3 p0, p1;

// get the current player (camera)
Player player = Game.Player;
if (player == null)
	return;

// get size (width and height) of the current application window
EngineWindow main_window = WindowManager.MainWindow;
if (!main_window)
	Engine.Quit();

ivec2 main_size = main_window.Size;

// get the current X and Y coordinates of the mouse pointer
int mouse_x = Input.MousePosition.x - main_window.Position.x;
int mouse_y = Input.MousePosition.y - main_window.Position.y;

// get the mouse direction from the player's position (p0) to the mouse cursor pointer (p1)
player.GetDirectionFromScreen(out p0, out p1, mouse_x, mouse_y, 0, 0, main_size.x, main_size.y);

// create an instance of the WorldIntersectionNormal class to get the result
WorldIntersectionNormal intersection = new WorldIntersectionNormal();

// create an instance for intersected object and check the intersection
Unigine.Object obj = World.GetIntersection(p0,p1,1,intersection);

// if the intersection has been occurred, change the parameter of the object's material
if(obj != null)
{
	for (int i = 0; i < obj.NumSurfaces; i++)
	{
		obj.SetMaterialParameterFloat4("albedo_color", new vec4(1.0f, 0.0f, 0.0f, 1.0f),i);
		
		// show intersection details in console
		Log.Message("Normal: type {0} coordinates ({1} {2} {3})\n", intersection.Type,
			intersection.Normal.x,
			intersection.Normal.y,
			intersection.Normal.z);
	}
}
/* ... */