Matrix Camera to World Coordinates

jakem3s90 · 2004-05-25T10:28:27

Hey everyone! I''ve finally got my matrix camera code working correctly, it''s adjusting the yaw, pitch, and roll, and then translating as it should. My question however is, is that I want to get the "true" coordinate of my camera position. The 4th row of the matrix is basically the the translation the scene, but if I wanted to test something against the position of my camera, it wouldn''t work, since I don''t have the actual position of the camera. I''m using a 4x4 2d array, rather than a sequential array to do the camera rotation / translation. Any ideas / links are appreciated! Thanks!

Graphics and GPU Programming Programming

Started by jakem3s90 May 21, 2004 07:37 AM

9 comments, last by jakem3s90 19 years, 10 months ago

jakem3s90

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May 25, 2004 10:28 AM

Yep! All I did was take the inverse of the 3x3 rotation portion of the matrix, and multiplied it by the translation row of the matrix, and VOILA, good to go. I stuck some collision detection in as well, and things are rolling smoothly.

It''ll work great for a flight sim / or anything that needs 6 DOF.

Thanks again!

Afterwinds My 4E5 entry