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Questions tagged [modeling]

Modeling refers to the process of creating 3D objects or entities using a 3D modeling application. This tag is used for anything related to modeling including techniques, tools and tips.

113
votes
1answer
326k views

Splitting pieces of a mesh into a new object

I've just made a set of armor by using a male body mesh model I downloaded and selecting certain faces from the model and duplicating them to create viable armor pieces. Since the pieces are just ...
90
votes
3answers
183k views

How to recenter an object's origin?

So, I'm working creating a lamp... yes, newbie here. After modeling for a bit, I noticed that my point of origin was no longer the center of my object: How to I reset an object origin point to the ...
75
votes
4answers
100k views

What is non-manifold geometry?

I am not quite sure what non-manifold geometry is. I thought non-manifold geometry was just floating vertices and hole in a mesh. From my experience this is not always the case however. What is non-...
72
votes
3answers
37k views

How can I quickly generate / create a large city without modeling it all by hand?

I am trying to create an urban open-world environment in Blender that would be about one square kilometre in size. To avoid having to model hundred of individual buildings, I am looking for a way to ...
68
votes
4answers
152k views

How would you cut a shape out of an object using another object?

Coming from SketchUp one of the tools I miss most is the circle draw tool which lets you draw a circle on any face and then you could extrude it in/out. The only tool that I know of that comes close ...
66
votes
7answers
105k views

How to smooth shade an object while retaining hard edges?

I frequently come to the problem of having a mesh with parts I would like to render smooth and "hard" edges connecting them. How can I set the mesh to show the sharp edges but render everything else ...
56
votes
7answers
22k views

How can I make sharp geometric 3d models look more realistic?

I'm making a scene in Blender with manufactured mechanical and electrical objects - cylinders, metal objects and so forth. I want to make these look real, be fully present with a sense of mass and ...
54
votes
4answers
20k views

When should N-Gons be used, and when shouldn't they?

Support for N-Gons (polygons consisting of more than 4 vertices) has been in Blender for a while now, but many of us still may not know when to use them, and how to do so effectively. In what ...
52
votes
3answers
74k views

Keep sharp edges when using subdivision surface

How can I use the subdivision surface modifier to create more high poly meshes without ruining sharp edges? For example this mesh The sphere should be subdivided but the rim of the cylinder should ...
50
votes
20answers
10k views

What's the fastest and / or craziest way to model an arrow in Blender?

I'm curious about all the ways you can come up with a solution. I'm searching for the way with the least clicks and maybe the two runner ups. I made up some rules on how to count them: A default ...
50
votes
5answers
134k views

Cutting a mesh in half

I have a mesh which I have imported from an OBJ file. I would like to apply Material A to the section of the mesh which is on one side of a given plane, and apply Material B to the section of the mesh ...
45
votes
6answers
51k views

How can I add vertices to intersection of two edges?

I need to put a point at the intersection of two edges. Below is a picture with red circles around where I need points to be placed.
41
votes
7answers
59k views

How to model effectively using exact measurements?

I always struggle when trying to create a floor plan or furniture. How do I model using exact measurements.
35
votes
2answers
3k views

How can I make a wrought iron basket?

I'm want to know how to make something like the wrought iron shapes as shown in the picture.
35
votes
3answers
3k views

Procedurally generating wear on an object?

What are some techniques for procedurally generating wear (chips, cracks, dents, etc.) on a mesh object? For example, what are some ways I could do something like this: but with more dents and ...
34
votes
3answers
145k views

How can I round the edges of a mesh?

I have looked at other similar questions on this site but couldn't answer my question. I have a model made of cubes the edges look very sharp (I would put a picture here but I don't have the required ...
34
votes
6answers
54k views

Extrude Faces along Local Normals

I am trying to extrude faces of a cylinder along local normals. 3dsmax can do it easy, couldn't find how to do it in blender. The extrude region option extrudes it as shown in the first example. I ...
34
votes
2answers
10k views

Generate curve from equation

I've been trying to design a dynamic sculpture which I can only define with exactitude through mathematical equations. Now, the equations yield only lines, like you can see in the animation below: I ...
31
votes
2answers
36k views

How to align a cluster of points?

If you have a cluster of points selected like this: how do you align the points so that they create a flat plane?
30
votes
2answers
2k views

Techniques for modeling a network of blood vessels

If you've ever seen anything like Body Worlds or the Bodies: The Exhibition you'll know how they dissect individual organ systems and put them on display with a technique known as plastination. For ...
29
votes
2answers
43k views

How to merge 4 adjacent, coplanar faces into a single face

I have a plane consisting of 4 squares - take as an example a subdivided plane. How can I merge these faces into one?
29
votes
2answers
9k views

How to animate morphing a rectangular plane into a sphere

How to make a grid-to-sphere animation like this?
29
votes
3answers
42k views

Change radius for proportional editing

When proportional editing is enabled in edit mode, then if you select and drag a point, nearby points will also move with it. The effect has a certain radius. How can you set this radius? According ...
28
votes
7answers
8k views

Organic yet accurate modeling with the golden spiral

Foreword First off, let me say that I am profoundly amazed at the orderliness in nature. If you haven't heard about the Fibonacci sequence (0, 1, 1, 2, 3, 5, 8, 13, ...), you should check it out. ...
28
votes
4answers
50k views

What is the fastest way to create a curved plane?

For a background, a lot of times I need a vertical wall, horizontal bottom, and a nice connecting curved surface between them in front of the camera. So far, I have used two methods: Deform a plane ...
28
votes
3answers
40k views

Model a simple 3D spiral shape?

I need to model a simple spiral shape. I imagine the best way to do this is with curves, but I am unsure how to create a perfect spiral shape with curves. What's the best/easiest way to make a spiral ...
28
votes
5answers
18k views

How to create an animated Electric Arc or Lightning?

I know about the technique of using a displace modifier with an animated displace object on a thin plane, but there are no "branches", no forking in the lightning. Here is an image from Wikipedia ...
28
votes
2answers
11k views

Is there any way to edit parameters for an object after it is created?

For example, when you first add a cylinder, you have the option to change the number of vertices, etc, but once you do anything else in blender, it seems you no longer can edit those parameters. Is ...
27
votes
3answers
12k views

What is the simplest way to generate a dodecahedron?

I've been thinking of animating some dice and while most are easy to make, I'm having some trouble figuring out a way to generate a regular dodecahedron. I could hand build it but it would be ...
27
votes
4answers
2k views

How would I go about creating a spiralled dome?

Is there some elegant way I could go about creating the "twisted spiral" surfaced dome as you see in the iconic "St. Basil's Cathedral" in Red-Square in Moscow?
27
votes
3answers
34k views

How to round corners of plane?

How can I cut an arc into a square plane? The gif above shows what I want to do, but, in another software.
27
votes
3answers
47k views

Sliding a point along an edge?

I have a line with a point in the center (2 edges with 3 points that forms a straight line). How do I slide the middle point along the straight line it resides on?
27
votes
2answers
156k views

How to merge vertices in Blender?

I am attempting to create my first 3D character just for practice. Being one of my first 3d models I going through the learning curve needless to say. In doing so I find myself creating many extra ...
27
votes
4answers
64k views

How can I quickly move/translate an object to the center location/position of another object in a static scene?

This question relates to positioning static objects while modeling. This is not a question about how to move objects dynamically/programmatically like in a game context. For example, I need to ...
27
votes
3answers
29k views

Apply subsurf modifier to only part of an object

How can I apply a modifier only to a part of an object? I want to model a goblet with a pedestal, and if I add a subsurf, the pedestal, of course, gets an unwanted round shape. How can I avoid that? I ...
26
votes
3answers
7k views

How to make a spiked sphere?

I know how to make it manually with cone rotation around the sphere. but maybe there's much simpler solution or addon that has that option, preferably not very high poly solution. Also if possible I ...
26
votes
5answers
2k views

Good approach to make planks for a barrel?

I'm trying to make the planks in a barrel, without involving sculpting. What is a good method? I thought about an array, but haven't had too much luck. this is what I've got at the moment, but I'm ...
26
votes
2answers
67k views

Extrude along path

Is there a way to extrude an object or shape along a path/curve, so you get a solid object? For example, a rectangle shape along a curve to get a long bendy sidewalk. I feel this was in an older ...
25
votes
4answers
48k views

How to merge two edge loops

This is a Q&A so I answer it myself. I searched for an answer to this question for ages and didn't find anything so I'll add this here if anybody else struggles with the same issue. So, how can I ...
25
votes
1answer
5k views

How to create piles of snow on a mesh?

For example on tree branches like this: Image from Wikimedia commons
25
votes
4answers
52k views

Is blender actually useable for engineering?

A moving design would be the final goal, but first I need to build complex shapes based on geometry as 3D modeling for engineering. Does blender have a work tree where you can rearrange the order of ...
25
votes
3answers
59k views

How to cut and paste part of a mesh to another mesh?

Hi im new to Blender and i want to know when im in edit mode if i can copy or cut a selections of polygons faces and paste to another mesh. Thanks in advance for any help
25
votes
3answers
7k views

How can I generate an object from a mathematical function?

I have a formula that mathematically describes the heart surface in Cartesian coordinates: $$\left(x^2+\frac{9y^2}{4}+z^2-1\right)^3-x^2z^3-\frac{9y^2z^3}{80}=0$$ Unfortunately, I have no idea how ...
25
votes
4answers
2k views

When is it useful to mirror?

Having discovered the mirror modifier I have been assuming I should always use it when modeling a symmetrical object. For instance, take a simple stool. Is it more efficient to model one half with a ...
25
votes
1answer
37k views

Is it possible to automatically simplify geometry in blender without losing object shape?

3ds max has a sort of modifier that allows you to take a heavily subdivided mesh and take away some of the polygons that would anyhow create a single polygon (i.e they are facing the same way).
24
votes
3answers
32k views

How to get selected edges length?

I have a female model and I want to know her waist width, so I select the edge loop, then use what tool? Is this only possible with python?
24
votes
3answers
16k views

Select every other face loop

How can I select every other edge loop. In this example its not too bad to do it manually but it other cases it might be. How can I easily select alternating face loops?
23
votes
4answers
52k views

Isolate or hide specific parts of an object in edit mode

I am just modeling an Audi R8 in Blender. I've already modeled more than half of the car. I've also modeled the front and now I want to model the back. But this is a bit difficult because when I am in ...
23
votes
2answers
38k views

Bevel specific edges

How would one curve specific edges while leaving others alone? I'm trying to model this (circled) object, But can't figure out how to bevel side edges and leave the front-edge flat. Tried using the ...
23
votes
1answer
18k views

Rotating each iteration of an Array Modifier

Is there a way to rotate each iteration of an Array Modifier? For example, I've created the helices of a DNA molecule, and I'm trying to add the base pairs. I've got a cylinder with an array modifier....