¿Qué es Worldtoscreenpoint?

What is Worldtoscreenpoint?

Function of: Description: This function returns the screen location and depth of a Vector3 worldPoint and whether this point is visible on the screen or not. This function takes in account the current GUI inset (such as the space occupied by the top bar).

ScreenPoint represents a point in terms of pixels relative to the top-left corner of the map control. Prior to version 3.3, a screen point was represented using a regular Point where the point object is defined without a spatial reference.

myScreenPos gives you the position of the object in the screen Space. This point will help you keep the object in-tact in z-axis. Input. mousePosition gives you the position of the mouse Pointer in x and y axis.

There are four coordinate system in Unity: Screen, World, Viewport, and GUI.

1. Screen coordinates are 2D, measured in pixels and start in the lower left corner at (0,0) and go to (Screen.
2. GUI coordinates are used by the GUI system.
3. Viewport coordinates are the same no matter what the resolution.

Viewport space is normalized and relative to the camera. The bottom-left of the viewport is (0,0); the top-right is (1,1). The z position is in world units from the camera. Note that ViewportToWorldPoint transforms an x-y screen position into a x-y-z position in 3D space.

each single dot on a screen is known as pixel.

A viewport defines in normalized coordinates a rectangular area on the display device where the image of the data appears. You define a viewport with the GPORT command. You can have your graph take up the entire display device or show it in only a portion, say the upper right part.

The GUI space is a special case where the camera space has to invert the y axis, hence it starts at the top left. Screen point is defined in pixels. A viewport space point is normalized and relative to the Camera. The points on the screen range between 0 and 1.

You want to move 2d UI (Label) with respect to your game object. WorldToScreenPoint transform the position from world space into screen space.

My problem is that I keep getting some strange values if the monster is to far away from the screen center. When the monster spawns, Y is about 4000. It keeps growing until around 6-7000, than it jumps to -3000, at wich point the values are correct until it gets on the screen.

Well if your object is in front the camera and is off screen to the left, its X screen position should be negative. As it moves behind the camera it sounds like its also getting closer to the edge of the screen so its negative value is slowly approaching 0.

I implemented the solution by projecting the position of the entity on the camera plane (if it is behind the camera), and this solution does work. Below is a version of the code i used to project the point if it is behind the camera. Artemis1997, Lazulite, atomicjoe and 1 other person like this. Thanks Davepoo! You saved my ass! (pun intended xD )