Unigine::WorldIntersection Class

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

// get the current player (camera)
PlayerPtr player = Game::getPlayer();
if (player.get() == NULL)
	return 0;

// get the size (width and height) of the current application window
ivec2 main_size = ivec2_one;

EngineWindowPtr main_window = WindowManager::getMainWindow();
if (!main_window)
	Engine::get()->quit();

main_size = main_window->getSize();

// get the current X and Y coordinates of the mouse pointer
int mouse_x = Input::getMousePosition().x - main_window->getPosition().x;
int mouse_y = Input::getMousePosition().y - main_window->getPosition().y;

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

// create an instance of the WorldIntersection class to get the result
WorldIntersectionPtr intersection = WorldIntersection::create();

// create an instance for intersected object and check the intersection
ObjectPtr object = World::getIntersection(p0, p1, 1, intersection);

// if the intersection has occurred, change the parameter of the object's material
if (object)
{
	for (int i = 0; i < object->getNumSurfaces(); i++)
	{
		object->setMaterialParameterFloat4("albedo_color", vec4(1.0f, 0.0f, 0.0f, 1.0f), i);

		// show intersection details in console
		Log::message("point: (%f %f %f) index: %i \n", intersection->getPoint().x, intersection->getPoint().y, intersection->getPoint().z, intersection->getIndex());
	}
}
/* ... */