CS461561 Virtual Environments: Principles

1
CS461/561Virtual Environments Principles
ApplicationsLights, Cameras, Action

• 1-29-2007
• Prof. Searleman
• SC375
• jets_at_clarkson.edu

2
Overview

• Talk by Xiaohua Sun Digital Art or Art which is
  Digital
• Review
• BB Parameter Selector
• use of shortcuts
• Implementing 3rd Person Cameras
• Virtools Exercise 4, due today 1/29/07
• Virtools Exercise 5, due Wednesday, 1/31/07

3
Logics Streaming Parameter Selector

• If In k is activated, selected parameter will
  be pIn k
• Variable number of inputs (v)

Note The default datatype of the selected
parameter is float. To change this, right click
on the triangle for the parameter output
Selected and change its datatype. The pIns
will change to the new datatype.
4
3rd Person Cameras

• Hierarchy cam
• camera is child of avatar
• Look At Camera
• moves with avatar but not a child of the avatar
• positions orients itself behind the teapot
  using BBs Set Position and Look At
• Mimic Cam
• uses a 3D Frame which is a child of the avatar
• camera uses BB Mimic to mimic the 3D position
  orientation of the 3D Frame

5
Virtools Exercise 5

• Composition Moving Teapot 4 cameras
• Surveillance Cam Looks at teapot from fixed
  point of view using BB Look At
• Hierarchy Cam Child of the Teapot
• Look at Cam not child, positions orients
  itself behind the teapot using BBs Set Position
  and Look At
• Mimic Cam uses a 3D Frame which is a child of
  the teapot uses BB Mimic to mimic the 3D
  position orientation of the 3D Frame
• Select cameras dynamically uses BB
• Set as active Camera in Camera