Find attached screen_ortho.inc, which extents the abilities of screen.inc in
order to use the orthographic camera. This is related to the thread


http://news.povray.org/povray.binaries.scene-files/thread/%3C4afccd8a%241%40news.povray.org%3E/?mtop=406850

started by SharkD, who is the one that wrote almost the entire code. The
attached version includes minor bug fixes and improved documentation.

Use
    Set_Camera(Location, LookAt, Angle, Ortho)
to define your camera instead of the traditional `camera { ... }`. The `Ortho`
parameter accepts `On` or `Off` and gives the expected results. Use e.g.
`Screen_Object` to add logos, watermarks, subtitles or any other object which is
meant to stay fixed in front of the camera. (Validated to work with animations.)

Best,
Carlo

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Download 'screen_ortho.inc.txt' (8 KB)