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Transforms...

Started by Xelius Jan 17, 2002 at 10:43 PM 4 replies 500+ views

Original Post

Jan 17, 2002 at 10:43 PM

Well, I''m still sitting at work (11:33PM EST) and I was reading a few things on DirectX and I''m puzzled. I think I know the answer but I figured I might as well ask and save myself some time. (No, this isn''t work related, but it''s better than sitting and waiting for reconfiguration utilities that take 10 minutes to run to finish ;-)) If I am using Direct3D and have loaded two objects, let''s say a cube and a pyramid (because I''m real creative) how do I move only one? The world transformation would move both objects in the way that my world transformation matrix specifies, correct? Would I simply have to define another matrix that gets used to transform each object seperately in order to move them independently? Please let me know. Thanks :-) ------------------- "Pointer?????" -Anonymous -=Xelius=-

CrazedGenius

Jan 17, 2002 at 10:51 PM

Something like this:

MakeObject1Transform(&T1);
device->SetTransform(D3DTS_WORLD, &T1);
DrawObject1();
D3DXMatrixIdentity(&T2);
device->SetTransform(D3DTS_WORLD, &T2);
DrawObject2();

_stalker

Jan 17, 2002 at 10:52 PM

Yes, if you want to move any object in your scene you have to build a local transformation matrix just for that object.

Xelius

Author

Xelius

Jan 17, 2002 at 10:54 PM

Oh okay :-)
Thanks for your help!

CrazedGenius

Jan 17, 2002 at 11:01 PM

For most deformations, tis best to use a vertex shader. Check out the EffectsBrowser at the nVidia developer''s site.

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