Deformation of Sphere using Transformations

Posted by Mert Toka on Game Development See other posts from Game Development or by Mert Toka
Published on 2012-11-16T03:37:36Z Indexed on 2012/11/16 5:14 UTC
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graphics

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matrix

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transformation

I have a graphic related question. I need to have a transformation matrix that I have no idea about what it is. The problem is to create right image from the right sphere. I created those images in Maya, but I need some matrices for the graphics course. Here is the image: enter image description here Our professor told us to use some sine and cosine in our transformations, but I have no idea what he meant. I thought of intersecting a plane from the grid(that is xz plane) and sphere, and then scaling down the resulting circle. Would that work?

I also checked this paper, however it looks like a bit advanced for me. Another thing is I guess that paper is not about the same type of information I was looking for.

It would be great if you could help me.

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