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Camera Direction

Graphics and GPU Programming Programming

Started by GaryNas September 08, 2005 09:55 PM

0 comments, last by Zakwayda 18 years, 7 months ago

GaryNas

134

Author

September 08, 2005 09:55 PM

If my camera has an orientation matrix (D3DXMATRIX), how can I extract a D3DXVECTOR3 from it that describes the direction its pointing? edit: By orientation, I mean a view matrix that will be used in the view pipeline transform. I think they're the same...

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Zakwayda

2,389

September 08, 2005 10:23 PM

If it's a view matrix (as you indicated), you should be able to construct the forward vector from elements 13, 23, and 33 of the matrix. If it's an object matrix, use 31, 32, and 33.

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