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On Fri, 07 Feb 2003 15:26:08 +0100, Jepessen <dan### [at] ciaoweb it> wrote:
> Hi.
> I've a question about the rendering method of POVRay.
> When I deide to create a shape, how does program decide the meshing
> subdivision of the shape itself?
It does not make subdivision. Why do you think it does ?
> When I create shapes with other programs (like 3dstudio etc), I can
> decide with how many poligons I can create the shape. Even if I use
> NURBS models, that depends only by the form, the program convert
> shapes to polygons to create the image, and I can work on parameters
> that create this transformation.
The reason why POV-Ray is so accurate is because it usually use exact
equations for "shapes". While triangle and mesh objects are supported things
like cone, sphere, lathe are real curved surfaces.
> Have POVRay some command to modify this part of the program itself?
There is no "this part".
> Or it doesn't use polygons in rendering?
Exactly
> How POVRay works, generally?
It is too general question. You have to be a little more specific.
BTW: there is one case where subdivision is actually used
(http://www.povray.org/documentation/view/167/ - 6.5.2.1 Bicubic Patch) but it
is a very specific case.
ABX
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