Return to Video

Camera Changes - Interactive 3D Graphics

  • 0:00 - 0:03
    When you orbit the camera around something, the target's fixed and only the
  • 0:03 - 0:06
    position changes. When you turn the camera to the left, you're fixed in
  • 0:06 - 0:10
    position and the target changes. When you're zooming in you're not doing any
  • 0:10 - 0:13
    kind of change because you're just changing the field of view. When you pan
  • 0:13 - 0:16
    you're moving the camera perpendicular to the way it's facing, so both the
  • 0:16 - 0:21
    target and position change. In fact, controlling where the target location is
  • 0:21 - 0:25
    can be a somewhat frustrating part of using various graphics modelers. If you
  • 0:25 - 0:28
    pan and then orbit, you're now orbiting around some different target location,
  • 0:28 - 0:32
    which may not have been what was intended. Note that I didn't ask about the
  • 0:32 - 0:36
    effect of dulling in the target in position. Dolly certainly changes the
  • 0:36 - 0:40
    position, but it's up to the program whether to change the target in this case.
  • 0:40 - 0:43
    If the control also moves the target, it's likely you're walking forward and
  • 0:43 - 0:46
    don't particularly care where the target is located. If the target doesn't
  • 0:46 - 0:49
    change, it's like you're walking towards and object and perhaps slow down as
  • 0:49 - 0:50
    you approach it.
Title:
Camera Changes - Interactive 3D Graphics
Video Language:
English
Team:
Udacity
Project:
CS291 - Intro to 3D Computer Graphics
Duration:
0:51
Udacity Robot edited English subtitles for Camera Changes - Interactive 3D Graphics
Cogi-Admin added a translation

English subtitles

Revisions Compare revisions