Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [subdivision]

The tag has no usage guidance.

1
vote
1answer
44 views

If you can use subdivision surfaces for 2D curves

I've seen how subdivision surfaces are good for 3D curves/modeling, but haven't seen anything on if it's good, or even usable, in 2D. My question is just that, if (a) you can even use subdivision ...
0
votes
1answer
54 views

Problems with Subdivision Surfaces

It sounds like Subdivision Surfaces are better than NURBS but not as good as T-splines. I would like to know some of the disadvantages of Subdivision Surfaces, what they can't do or what they do ...
0
votes
0answers
17 views

How to map a subdivided cube into an array

Assume we start with an axis aligned cube at known origin/corner Origin with known dimension Dim. This cube is divided into 8 equally big cubes with length Dim/2 and corners Origin, Origin + (0,0,...
1
vote
0answers
40 views

Ray tracing and mesh extraction

I have been reading this paper : 3D Surface Extraction using Incremental Tetrahedra Carving .pdf I have already generated a tetrahedra for my mesh and I would like to create a surface mesh. I can't ...
3
votes
1answer
142 views

How to smooth out a voxel grid?

So I am facing the following issue. Say I have a minecraft like mesh (i.e I have a bunch of cubes on top of one another). I wish to smooth out this mesh in such a way that only the regions where ...
7
votes
1answer
218 views

Visualizing the Lane-Riesenfeld Algorithm

Ok so, I keep reading papers about this and non of them have pictures. The lane Riesenfeld algorithm provides a way to subdivide set of points with B-spline conversion. The quesiton is simple HOW? If ...
5
votes
2answers
188 views

Where do the coefficients in the Catmull-Clark subdivision algorithm come from?

I'm learning about subdivision surface algorithms. The "Catmull-Clark" algorithm seems to be one of the most widely-used classical algorithms. The introduction of new face points and edges is ...
6
votes
1answer
232 views

B-Spline patches on the tessellation shader. How to get the control points

I have a polygonal mesh with ngons in it. I want to make a tessellation shader to which I send only the regular quads in such a way that it can construct a B-Spline surfaces across it. I came across ...
8
votes
1answer
131 views

What is this triangle sub-division scheme called?

I have thought of a triangle sub-division for the purpose of smooth triangulation (no popping) over time on the fly. I think it is very likely the scheme is already invented and has a name but I can´t ...
4
votes
0answers
29 views

Constructing base mesh for required subdivision surface

Given a triangle mesh, does there exist any algorithm to compute a base mesh (smaller in size than the triangle mesh) that could be subdivided multiple times to get back the original mesh (or an ...
4
votes
0answers
269 views

An introduction to Lane-Riesenfeld algorithms [closed]

I am looking for a good introduction to Lane-Riesenfeld algorithms, which are a family of subdivision methods for generating uniform B-splines. Any suggestions? Note. This is a copy of the question I ...
17
votes
1answer
312 views

What subdivision algorithm advances have occurred since Catmull-Clark?

In 1978 Edwin Catmull and Jim Clark defined the recursive subdivision process that bears their names, and although those principles are applicable still today, what advances have occurred as far as ...