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lightspeed
Langue: en
Version: 264072 (debian - 07/07/09)
Section: 1 (Commandes utilisateur)
NAME
lightspeed - Shows how objects moving at speeds near the speed of light look like.SYNOPSIS
lightspeed [-hsa] [object]DESCRIPTION
Light Speed! is a simulator which can illustrate the effects of special relativity on the appearance of objects travelling at ultra-high speeds. Depending on the particular speed, and one's point of view, relativistic effects can cause the object to appear shorter, longer, brighter, darker, deformed and/or off-color.CONTROLS
To adjust the velocity, use the slider along the right edge of the main window. You can also type in a value, using the entry at the top right (press <Enter> once it is in). To change the units shown, press the button to the right of the entry, and it will cycle through a small list.The object travels in the positive-x direction, which can be visually checked by activating Objects -> Coordinate axes.
Most interactive control is performed with the mouse. By holding down a particular button, and dragging the pointer around, various camera motions can be obtained:
Left button: Revolve camera around view target Left button + Shift key: Revolve view target around camera Middle button: Translate camera left, right, up or down Right button: Dolly in or out
The first and last motions are generally the most useful. Should the camera become difficult to control at any point, it may be re-initialized by selecting Camera -> Reset View.
OPTIONS
- -h, --help
- Print this help screen
- -s, --simple
- Use simplified interface
- -a, --advanced
- Use advanced interface (default)
- object
- 3D file to load on startup (.3DS or .LWO)
Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre