![]() ![]() Options include using Camera.ScreenPointToRay with Physics.Raycast for checking against 3D colliders or Physics.Raycast2D for 2D games. ![]() Almost all of them involve firing a Ray into the Scene from the mouse’s world position to collide with objects and retrieve a reference to them. To interact with Game Objects using the mouse, there are several methods available. If you don’t, no movement will be detected. When Using a 3D Perspective Camera you must set the Z value of Input.MousePosition to a positive value (such as the Camera’s Near Clip Plane) before passing it into ScreenToWorldPoint. To calculate the mouse position in world space, use Camera.ScreenToWorldPoint with Input.mousePosition, to get a Vector3 value of the mouse’s position in the Scene. How do you get the mouse position in world space in Unity? Whatever it is, you’re going to need to translate the mouse’s position on the screen, which is measured in pixel coordinates, into a real position in the world that Game Objects use. Perhaps you want to make another object face the position of the mouse or fire something towards it. It’s a property of the Input class so, to access it from a script, all you need to do is use Input.mousePosition, which returns the position of the mouse, in pixels, from the bottom left of the screen.īut what if you want to actually do something with the mouse position in the game world, such as click on a Game Object, or drag something around the screen. Either that, or I'll put it on a friend's machine, set the dimming level to all black, give it a relatively large "light circle," and then assign it to his brightness key :).In Unity, getting the mouse position on the screen is fairly straightforward. I intend to put this to use during my next OS X presentations, as I think it will help folks follow along with the cursor movements. Also, although Mouseposé is free, it does require you to register on Boinx's site to get a serial number - name and email address are required, and you can opt out of their update mailings. I would much rather use something easier to reach on the keyboard and not give up a function key to the activation keystroke. On the downside, the hot keys available are only the standard function keys you can't add a modifier, nor can you assign any other key combo. You can also specify (somewhat) the hot key to be used to activate Mouseposé, and have it automatically deactivate after a specified interval of time instead of remaining active. You can modify the size of the circle, the amount of dimming applied, and even the color of the dimming - turn your screen a dark shade of red, for instance, while Mouseposé is active. Mouseposé runs as an application, so there's no "low level" compatibility issue to worry about (it's been very stable during my time using it). Once activated, you can continue to use your Mac as you normally would, and Mouseposé won't deactivate until you press its hotkey again. You activate it via a hotkey, and it then dims the screen and leaves an undimmed circle around the mouse, making it very easy to see the cursor's location. As you can see in the screenshot at left, Mouseposé is somewhat like Exposé for your mouse pointer. It's also useful, though, in a text editing document when you've lost sight of the I-beam cursor. It will be of particular interest to presenters and those who demonstrate OS X software in large rooms. Price: Free Mouseposé is a simple, fun, and occasionally useful application. ![]()
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