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creating a shape given a vector (image)

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I want to create a trail for a missile formed with two plane I can give each frame the new position this will make a vector but I have no idea how to calculate the vertice to forme my two plane. (triangle strip) those plane will be updated each frame to make the strip polygon grow until it break in a new strip ect ect so it must be a fast function. I have read a lot of tutorial on 3d math but I didn''t found one that have some picture to explain how does the math act in a 3d space... so I''m lost. Help !

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Help yourself and god will also,

Got It !

My class trail have a pointer to the object class and get its
matrix as well as its bounding box value.

than by calling D3DXVec3Transform I get the four point of the missile''s back already transformed.

Now just matter of constructing the face (on the way)

Dan :-)

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