1. Manipulating the Camera
Chapter 7
Manipulating the Camera

2. Working with Mouse Input (Selection!)
Mouse positions: Canvas coordinate!
GameObjects are in WC!
Canvas to Viewport

3. Viewport (device) to World Coordinate!

4. 7.5: Mouse Input Project LMB in main view: MMB the HeroCam view:
Drags the Portal object
MMB the HeroCam view:
Drags the Hero object
RMB or MMB in any view:
Hides/shows the Portal

5. 7.5: Goals
To understand the Canvas Coordinate space to WC space transform
To appreciate mouse clicks are specific to individual viewports
To implement transformation between coordinate spaces and support mouse input

6. Camera_Input.js: Canvas to DC
DC is Viewport’s coordinate
If mouse click is in the viewport of a camera

7. Camera_Input.js:: DC to WC