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Havana Smurf

difference b/w d3dx and d3dim

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could someone tell me the difference between using d3dx and d3dIm ? i know the d3dIm is the *fast* 3d version of d3d (not like d3dRm) but what is d3dx ? is it a set of helper libraries or functions ?

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D3DX is a set of library function that help you do such things that you would do anyway, for example initialize Direct3D, compute matrices, quaternions etc. It imposes no slowdowns on your application. You don''t have to use all of D3DX either, if you don''t like one part then you can either ignore it completely or implement something similar with the features you want.

In my opinion you should use D3DX as much as possible since there is no sense implementing the exact same thing that the developers of Direct3D has already done. It is after all they who know Direct3D best.

- WitchLord

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I agree with WitchLord. I think that you are more likely to create slower matrix operations if you do them yourself. D3DX has a few very helpful functions, most notably the D3DXMatrix Functions. These are for creating a matrix,multiplying, etc. Also, the matrixStack and some of the simpleshape classes are very helpful.

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