> Now, I found that the nicest results for the ramps I would get by using the
> parametric objects, since I could then describe everything in polar coordinates
> and describe the height of the ramp by a nice differentiable trigonometric
> function (code below).
>
> So, problem #1: as you can see from final structure, even though the entire
> thing consists of a bunch of vertical translates, the "middle" set of ramps has
> some issues with lighting (the checker pigment is all smeared). I found that I
> could limit this effect by giving lower values of accuracy, but if I go below
> 0.000007, I'll get a segmentation fault when rendering. Here's a still showing
> the problem:
>    https://i.imgur.com/p7ZkDTZ.png
>
> Is there any way around this issue?

If you can't find an easy solution then I would be tempted to write a 
macro to create a mesh2 object on-the-fly from the parametric equations. 
It should render faster too.

Post a reply to this message