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271 votes
4 answers
520k views

Can Blender render pngs with the background transparent?

I would like to render an animation as a series of .png images with transparent backgrounds for use in a video. Is this possible?
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214 votes
5 answers
434k views

How to close view windows?

I would like to close some view windows that I opened accidentally. See the image below: Edit: another note: I tried searching for the solution, but only found things like "Join Area", which don't ...
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  • 2,243
214 votes
8 answers
356k views

Why does the zoom sometimes stop at a point?

I often find that I can zoom in to a point, but then cannot zoom any more, even when there is a lot of room to zoom to the meshes on the scene. This is particularly annoying in the following ...
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  • 2,243
196 votes
4 answers
511k views

Change pivot or local origin of an object

How can I change the local origin of an object, without changing the object location in the world space. This is the object located at position (0,0,0) in the world space This is the same object ...
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  • 4,361
183 votes
10 answers
343k views

What's the quickest, easiest way to point the camera somewhere in blender?

Often I want to just point the camera to an object or a specific area in my scene to get an idea of how it'll look in the render. What's the most painless hassle-free way to do this in blender? A ...
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  • 2,911
158 votes
1 answer
469k 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 ...
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  • 1,763
148 votes
17 answers
44k views

Resources for Blender

Since asking for tutorials, videos, resources, links to other content or downloads is considered off topic here, this is a specifically created Community Wiki which gathers resources for Blender and ...
147 votes
4 answers
259k views

Add different materials to different parts of a mesh?

How do you add more than one material to a mesh? I have tried adding two materials to the object, and then assigning one of the materials to a vertex-group, but I could not find a place to assign it....
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  • 5,389
132 votes
4 answers
233k views

How can I make a camera the active one?

I have multiple cameras in a scene. What I want to do is to change which one is active. This way I can view the scene from different angles. How would I do this?
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128 votes
5 answers
329k 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 ...
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  • 1,603
118 votes
2 answers
39k views

Render with a wider dynamic range in cycles to produce photorealistic looking images

To get images that seem more photorealistic, not only a much wider Dynamic Range is needed, but also having the color information desaturate towards white as it would happen in an overexposed ...
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110 votes
11 answers
111k views

How can I pause a render in progress and then resume it at a later time?

I would like to pause a render that I have started, with the intention of resuming it at a later time (but during the same Blender session). How can I do this?
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  • 3,161
108 votes
10 answers
467k views

How to focus on the selected object?

In Maya if we have an object selected and we press F then the object is brought into focus and if no object is selected then all the objects in the scene are brought into focus. How can this be done ...
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100 votes
7 answers
145k views

Precisely move the 3D cursor

The 3D cursor can be moved by simply LMB clicking anywhere in the viewport. Is there a faster and easier way to position the 3D cursor?
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  • 47.7k
100 votes
1 answer
40k views

What is a BSDF?

The term "BSDF" is common in Cycles shaders such as "Diffuse BSDF" and "Glass BSDF" but is not present in all names ("Emission" and "Mix Shader" are two such examples). What exactly is a BSDF?
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  • 9,064
95 votes
5 answers
149k 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-...
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  • 14.1k
94 votes
3 answers
232k views

Enabling GPU rendering for Cycles?

I want to enable GPU rendering, but there is no option in User Preferences > System: Why is this? How can I get cycles to render using my GPU?
87 votes
7 answers
170k 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 ...
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87 votes
3 answers
130k views

Add the Same Modifier to Multiple Objects at Once?

Is it possible to add a modifier to more than one mesh at once? I have a lot of unique objects, and I want to set a subdivide modifier to them, would I have to do each one individually? I have ...
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  • 5,389
87 votes
2 answers
82k views

How is Cycles different from Blender Internal?

How does Cycles work and how is it different from Blender Internal? Which is better?
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  • 152k
86 votes
9 answers
117k views

How to avoid noisy renders in Cycles?

I know that this question is a bit old or maybe overdone, but I'm running the latest edition of Blender and when I use the Cycles engine I get really fuzzy results and I can't find a simple, non-...
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  • 1,287
85 votes
5 answers
75k views

How do I completely remove an image from my .blend file?

I'm creating a model for a 3D game that will eventually be exported using a custom Python script. This model makes heavy use of UV textures. However, the project now references a bunch of images that ...
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  • 1,383
84 votes
2 answers
125k views

How to close/open a view panel

I can't find a way to close a view panel, in particular the horizontal at the bottom, is pretty useless to me at this moment.
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  • 4,361
84 votes
3 answers
66k views

How can I run blender from command line or a python script without opening a GUI?

I'm interested in using Blender for producing images, 3d files, or calculating geometry on a server. Can I make blender run a python script without opening a GUI? If not, can I incorporate Blender's ...
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81 votes
3 answers
54k 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 ...
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  • 913
81 votes
5 answers
231k 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 ...
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  • 6,816
81 votes
8 answers
89k views

Where does console output go

I'm trying to debug a Python script by placing a print("foo=" + foo) statement in my code. But where does the output appear? It doesn't appear on the Python ...
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  • 3,671
77 votes
3 answers
224k views

How do I set a background image while I am editing?

How do I put a backdrop behind the model that I am creating so that I can compare the picture to the model while editing?
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  • 3,437
74 votes
4 answers
49k views

What is the difference between a UV Sphere and an Icosphere?

When working with or adding meshes, I've seen UV Spheres and Icospheres being presented to me. What are the differences between them, when should either be used and is there anything I should take ...
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  • 2,746
73 votes
2 answers
46k views

How can I reuse existing materials, objects, etc from an existing .blend?

I have created several designs for a particular project and they are related, but I don't want to have to keep recreating any similar elements, such as shared materials or textures. How can I use the ...
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73 votes
3 answers
89k views

Is it possible to make Blender a Y-up world?

After learning bits and pieces of Maya, 3DS Max, IMAGINE and XSI I noticed that they all have Y-up worlds with Z being used for depth (naturally). is there a way to make Blender a Y-up world? and ...
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  • 731
72 votes
9 answers
141k views

How can I remove all unused materials from a .blend file?

I'm testing different materials in the same object, and finally the file has a lot of unnecessary material, is there any command that performs the cleaning of these materials automatically? in short, ...
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  • 1,135
71 votes
4 answers
97k views

Render just part of a final image from Cycles?

I'm using an older Nvidia chip that hates running viewport renders, and I need to check if changes to the materials on a few objects not far from the center of my scene are (I'm rendering a floorplan ...
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  • 1,923
70 votes
22 answers
16k 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 ...
user avatar
  • 15.3k
69 votes
5 answers
23k views

Is there a tool for scientific visualization using Blender?

Is there an interface or API that allows using Blender as a tool for mathematical and scientific visualization? It should allow Blender to read in data (a la gnuplot or matlab, perhaps using scipy) ...
user avatar
  • 792
67 votes
4 answers
39k 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 ...
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67 votes
5 answers
171k views

How to reset the center of rotation of the 3d view when it is not the center of the view

Sometimes the 3d view rotation using the 3rd mouse button starts to rotate around an unusual point that is not very convenient. I don't know why it starts doing this, but it usually starts when I'm ...
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  • 1,553
66 votes
9 answers
101k 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.
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  • 7,653
65 votes
9 answers
51k views

Using 3rd party Python modules

I'm currently developing a script for Blender to handle Mesh Frequency Decomposition. The script is nearly complete, but i need one more thing: The SciPy library to compute eigenvalues and ...
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  • 651
65 votes
6 answers
236k 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 ...
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  • 1
65 votes
3 answers
134k 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 ...
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  • 6,816
64 votes
2 answers
23k views

How do blender units and meters, feet, or yards correlate?

If I'm using blender game engine, how do blender units work in relation to gravity, acceleration, or weight? Is there a rough physical world equivalent?
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  • 1,027
63 votes
3 answers
372k views

How do I put an image texture on a material in Cycles?

I am creating a model of a glass and I would like to put a drawing on it (a png picture). I know how to do it using Blender Render, but not with Cycles Render. Help :)
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  • 733
62 votes
1 answer
79k views

How do I "parent" objects?

I'm looking for a way to have two separate objects be connected, so that when I move the first object the second one will move also. The term parent is used, but how do I parent a object?
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  • 47.7k
61 votes
2 answers
27k views

Creating a Black Hole in Blender

I recently saw the film Interstellar and it was fantastic! The effects blew me away and it got me in the mood to try and re create the black hole, however I haven't been able to find any information ...
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  • 1,351
61 votes
1 answer
10k views

Trace visualisation in 3D - how to wrap curves onto a 3D mesh

Dear Stack Exchange Community, i'm trying to achieve the following effect with curves: Source of this image is here: https://www.behance.net/gallery/57143191/Visualizing-Concepts-in-Houdini-...
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61 votes
5 answers
31k views

How to pass command line arguments to a Blender Python script?

Let's say we have a Python script my_script.py that does some data processing with Blender. This script accepts some arguments (e.g. ...
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  • 713
60 votes
5 answers
87k views

Is it possible to group several objects and then manipulate them (scale, rotate, translate) as one?

I've never been quite able to figure out how groups work in Blender (at least not since 2.5/6x). Is it possible to group several objects and then manipulate them (scale, rotate, translate) as one?
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60 votes
3 answers
95k views

How do I clear the render border?

In the 3d viewport I am using a border region to only render things inside the selected region. I did this with CtrlB. I cannot get rid of the region. How can I make the border disappear?
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  • 1,035
59 votes
2 answers
157k views

Where can the viewport clipping parameters be changed?

Zooming in to inspect texture details in 3D view clips some closer faces like shown in the image. It's not the camera view so changing camera settings doesn't help. Where can the distance to the ...
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  • 37.4k

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