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plane and normal

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Hi Please, if you can try to answer using dx9 api... I created a plane from 3 points: Plane pl=Plane.FromPoints(v1, v2, v3); that plane has an inclination on it, I want to use it as the normal for other vectors, how can i do that? I mean i have another vector3 that I want to do vector.transformnormal(the_plane) the problem is that i see that method but it only takes a matrix and i have no idea how to put that plane into a matrix so i can transform the vector normal and set it up equal to the plane. any ideas?

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Do you want to extract the normal from the plane?

I don''t really get it..

You have the normal in the equation:

ax + by + cz + d = 0

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