koobas.hobune.stream
Alternative to ScreenPointToRay needed
Hi,
I have a camera script that relies on main camera and ScreenPointToRay, but am now trying to implement a more elaborate camera management script.
Basically, I have a 'focus' object which position is conformed to the character controller plane, with an update function that sets the focus position to the ScreenPointToRay collision. Simply put, the focus position changes in x and z only, as you move the mouse around the character controller.
The problem is that, if I move the camera, the 'focus' position changes, since I ScreenPointToRay from the camera!
Is there a way to, say, 'ScreenPointToRay' from a world position, rather than a camera?
I basically need to retrieve the world coordinates of an 'Input.mousePosition', with a ray that originates from a world point, rather than a camera.
Any help appreciated.
Thanks.
"Is there a way to, say, 'ScreenPointToRay' from a world position, rather than a camera?"
Then it is just a regular ray from point A to point B... If you need it from the position of mouse but in world coords, you could use ScreenToWorldPoint and then cast your ray...
Can you explain a little more what you want here, because what you are asking doesn't make sense... in particular, an "Input.mousePosition" does not have a single world coordinate - a mouseposition is a 2d point, so it represents a ray in a 3d world. You need more information to figure out how to fill out that 3rd dimension. $$anonymous$$aybe what you want is the point at which the ray representing the mouse click intersects some other object or plane?
The example on this page will let you read out the world position under the mouse pointer: http://unity3d.com/support/documentation/ScriptReference/Input-mousePosition.html
You can set your focus to that point.
