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Autodesk Multimedia Forum · IPAS Usage

#How can I do it w/bones?

5 messages in this thread

#191203From: Francisco CubasSep 17, 1995 12:36 AM

I'm trying to make an animation of a book opening. I put bones to the hardback so I can open it seamlessly. For the bones, I put a flat box upper hardback, another for lower hardback and the last in the side of it. It seems to me the best way to make the animation, but when I rotate the upper bone, the mesh makes a mess. I've tried it with all combinations between the two parameters of influence. Can you tell me something about it?. If you need, i can upload the project. It's very simple. Thanks. Francisco. Spain.

#191241From: Kyle J. McKisicSep 17, 1995 10:18 AM

Francisco, I'm guessing that you are starting with the book in a closed position, and if you have each bone covering the entire area of each cover, I can see where your influences may overlap. You might try creating the book in an already open position, create your bones and animate it. One thing to be careful of is to make sure that you don't change any bone positions or scales on frame 0 in the Keyframer. This is because frame 0 in the KF = what's in the 3D Editor, which changes each bone's initial settings and influences. I usually set my active frame segment in the KF to start at frame 1 and I don't run into many problems. So you can just close your book on frame 1 and open it over how ever many frames you need. You'd also want to add a bone for the spine of the book, as it should hold some kind of control over that area of your mesh as it opens.. -Kyle

#191765From: Francisco CubasSep 20, 1995 8:43 AM

>>I'm guessing that you are starting with the book in a closed position,<< Yes, you are right. I will try your solution (very tricky). Thanks for your advice.

#191295From: Tim Krego, [pro.image]Sep 17, 1995 3:47 PM

>I'm trying to make an animation of a book opening.< Schrieber/4D has a set of routines called Pages. There is a Roll Page and a Turn Page.

#191767From: Francisco CubasSep 20, 1995 8:46 AM

>>Schrieber/4D has a set of routines called Pages. There is a Roll Page and a Turn Page. << I've already got Schrieber's Pages, and I used it for the book, but my problem is with the hardback, because I want it to be of one piece, showing the rounded edge when it's open. Thanks for your answer, Francisco. Spain.