Monday, September 10, 2007

nurbs v. polygons v. subdivisons

according to maya:

polygons
A polygon is an n-sided shape, defined by its corners (vertices) and the straight lines between them (edges). When you model with polygons you usually use triangles or quadrilaterals ("quads"), although Maya supports polygons with more sides. An individual polygon is often called a face, and is thought of as the filled area defined by its vertices and edges.

according to me:

nurbs

pros
• good for surface modelling
• easily translatable into other programs
• good output for cnc milling

cons
• surfaces are often difficult if not impossible to attach
• not good for 3d printing
• usually require lots of rebuilding

polygons

pros
• easier to work with then subdivisions
• easy to attach
• can be modelled as a single, continuous surface
• good for 3d printing and cnc milling

cons
• lacks the level of detail available in subdivisions

subdivisions

pros
• can get into an amazing level of detail
• good for 3d printing and cnc milling

cons
• cannot be redered with mental ray
• difficult to attach and duplicate

3 comments:

SHIVAM (@MOURPHIOUS) said...

mast yaar

deeniel said...

i don't understand...i just rendered a model i made in sub-divs using mental ray

nnurgle2 said...

from mentalray faq:

Does mental ray support subdivision surfaces?


Yes, mental ray supports rendering of hierarchical subdivision surfaces, and provides a fast rendering solution for non-hierarchical Catmull-Clark meshes. Full surface modeling and editing support is available in conjunction with the optional mental matter® product.