Blender Stack Exchange
Blender Stack Exchange

Questions tagged [bezier-curves]

A Curve is an object that is expressed in terms of mathematical functions, rather than as a series of points such as vertices. Use this tag for any questions pertaining to the "Curve" Object type in blender. Use this tag for questions about curve object types in Blender.

Curves and Surfaces are particular types of Blender objects. They are expressed by mathematical functions (interpolation) rather than linear interpolation between a series of points.

Blender offers both Bézier and NURBS. Both Bézier curves and NURBS curves and surfaces are defined in terms of a set of “control points” (or “control vertices”) which define a “control polygon”.

Curves at the Blender Manual

2489 questions
16
votes
1 answer

How to weld two control points of a curve?

Is it possible to weld or merge two control points of a curve?
Prag
  • 1,038
  • 6
  • 15
  • 32
16
votes
2 answers

Mathematical formula for Bezier curves

What mathematical formula does Blender use to calculate Bezier paths?
Garrett
  • 6,596
  • 6
  • 47
  • 75
15
votes
1 answer

How can I simplify or resample a Bezier curve?

When I use the Grease Pencil to draw out quick curves in the 3D Viewport, and then convert the pencil to a Bezier curve, the result is always consisting of very dense geometry and handles which are not aligned very well: too many control…
aliasguru
  • 11,231
  • 2
  • 35
  • 72
14
votes
5 answers

Make a quarter curve with curves

What I want: What I have: So basically I need to use curves to make a quarter circle. What is a good trick to do that?
b2550
  • 295
  • 2
  • 8
14
votes
4 answers

How to fill a 3D bezier curve?

If I turn a bezier curve to 3D the surface will disappear. But I need 3D curve because it uses all the 3 axis to define the shape. I tried all the Fill options (Half, Front, Back, Full) but none of those do anything for me. So how to fill a 3D…
Prag
  • 1,038
  • 6
  • 15
  • 32
11
votes
2 answers

Can I set the start point of a bezier curve?

I have a closed bezier loop that insists on a particular point being the start/end. Is there a way to change which point is considered the start, as in which point represents 0.0 evaluation time? I've deleted and rejoined segments all over, and…
IanLarson
  • 233
  • 1
  • 2
  • 4
10
votes
1 answer

How to make beveled 90 degree corners on a curve better?

I know the title is a mouthful, but this is the problem: I made a curve with 90 degree corners, like so: I then beveled it, and this was the result: As you can imagine, this isn't very pretty. I'm looking for something like this: How can I…
Espen Sales
  • 1,182
  • 4
  • 16
  • 33
10
votes
2 answers

Create a surface within bounding curves?

EDIT: My example was misleading. I don't want to use polys/faces. Please see the example of how this is done in Maya: My first example didn't make it clear that I want to influence the way the "bridge" is formed by the other bounding curves. Is…
Ben Mora
  • 850
  • 1
  • 10
  • 27
10
votes
1 answer

Fill Bezier Curves

I'm having a big problem with the bezier curves in Blender. I'm trying to fill up the curves, but I can't. I have already seen some videos from YouTube, that say that I have to click on the 2D button. But when i click on the 2D button, this is what…
Terniro
  • 103
  • 1
  • 1
  • 5
10
votes
1 answer

How can i hide the references lines on a bezier curve?

I want to hide all those lines, only keeping the main curve while working, how can i do that?
beavoru
  • 5,357
  • 23
  • 65
  • 109
9
votes
2 answers

What is the difference between a path and a bezier?

What is the difference between a path and a bezier curve? I started to use blender and I was wondering what is the difference between those curves?
LiziPizi
  • 215
  • 2
  • 5
9
votes
1 answer

Branching Bezier Curves

I am trying to model the "root feet" in the picture below. I have used a bezier curve for the body - But since bezier curves cannot branch, how should I continue the "feet"? I've tried blocking them out with multiple curves, but then I don't know…
keeweee
  • 167
  • 2
  • 5
9
votes
3 answers

Is there an equivalent to Remove Doubles for Bezier curves?

I have been doing a lot of work with curves recently (mostly Bezier because of the greater control) and I have stumbled across an issue, I can't seem to find an equivalent option to Remove Doubles used for meshes. Is there a way to merge all…
J Sargent
  • 19,269
  • 9
  • 79
  • 131
9
votes
2 answers

Joining several splines

I try to use points from an import as a spline to make curves as paths to follow for an animation. These curves share some points at the ends and beginning when I import them via Python. For example s1: A-a-b-B s2: C--D s3: B-c-C s4: D-d-E which in…
user2567875
  • 433
  • 2
  • 5
  • 10
8
votes
2 answers

How to flip the face of a closed 2D curve (similar to normal flip for mesh)?

I use Blender 2.69. When I create a closed curve (for example, a circle) and make it 2D with the properties editor, it becomes filled. Since I work with backface culling on (because of the application of the objects I make), only one of the sides is…
Pedro Gimeno
  • 218
  • 2
  • 7
1
2 3
…
23 24