Roger Kohli
Newcomer
I have no practical reason for asking this question other than that I am just curious about the answer.
Suppose I wanted to model a solid cylinder in 3D graphics. I would require two approximate circles (made from triangles) for the ends (upper and lower) and some number of rectangles (2 triangles / rectangle) for the body.
Now, to approximate my circles I could calculate the position of a vertex on the circumference every, say, 10 degrees giving me 36 vertices. I could use these same vertices to form the rectangles (triangles) of the body.
The question is, would I get a better result if I offset the vertices of the lower circle by 5 degrees from the upper circle or would the result just look twisted? i.e. if one circle had vertices at 0, 10, 20, etc… degrees and the other 5, 15, 25…
My supposition is that by twisting the vertices like this, the triangles which previously formed the flat rectangles of the side, would no longer form flat rectangles and so give the cylinder more definition.
I hope that makes sense.
Oh, I'm thinking about from a lighting/shading point of view too.
Suppose I wanted to model a solid cylinder in 3D graphics. I would require two approximate circles (made from triangles) for the ends (upper and lower) and some number of rectangles (2 triangles / rectangle) for the body.
Now, to approximate my circles I could calculate the position of a vertex on the circumference every, say, 10 degrees giving me 36 vertices. I could use these same vertices to form the rectangles (triangles) of the body.
The question is, would I get a better result if I offset the vertices of the lower circle by 5 degrees from the upper circle or would the result just look twisted? i.e. if one circle had vertices at 0, 10, 20, etc… degrees and the other 5, 15, 25…
My supposition is that by twisting the vertices like this, the triangles which previously formed the flat rectangles of the side, would no longer form flat rectangles and so give the cylinder more definition.
I hope that makes sense.
Oh, I'm thinking about from a lighting/shading point of view too.