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Calculate ray from eye point to projection plane

Graphics and GPU Programming Programming

Started by Xmon June 11, 2006 02:46 PM

0 comments, last by MePHyst0 17 years, 10 months ago

Xmon

136

Author

June 11, 2006 02:46 PM

How do I calculate the ray from eye point to pixel in projection plane best?

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MePHyst0

232

June 12, 2006 03:32 AM

You can go by using the built-in D3DX function D3DXVec3Unproject. It gives you world coordinates(your desired mouse position in world space) from screen coordinates(mouse position). Then simply construct your ray from world space mouse position and the eye position.

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