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31
votes
7answers
16k views

How to find image coordinates of the rendered vertex?

I have a simple mesh of a cube. I would like to know what are the coordinates of each vertex in the rendered image (i.e. for each 3d vertex I'd like to know it's pixel coordinates). Is there a way ...
31
votes
3answers
38k views

What is the fastest way to add vertices to a curve at a specific point?

For example, in inkscape you can double click to add a new control vertex: Is there a way to do that in Blender? The closest thing I have found so far is CtrlLMB, but it just adds an unconnected ...
31
votes
4answers
20k views

Is there a way to batch render multiple scenes?

I have animations in 4 different scenes in my Blender file that I would like to batch render. Is there a way to batch render all the scenes, instead of only the scene I am working in?
31
votes
2answers
3k 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 ...
31
votes
2answers
17k views

Can I run a Python script step by step in Blender?

Can I run a python script step by step with normal blender, a build, external software or an addon? I'm developing a script (town generator) and I want to to execute the code step by step like a ...
31
votes
5answers
19k views

How to install Pip for Blender's bundled Python?

Blender comes with Python, and includes a stand-alone Python executable. However pip is not part of the official Python distribution so it needs to be added separately. How do you setup ...
31
votes
3answers
50k views

Is there a shortcut to repeat the last operation in Blender

I'm currently doing a lot of UV mapping work and I find myself repeating the same long shortcuts over and over. For example, aligning the selected uvs in y can be done by pressing s, y, 0 (scale y to ...
31
votes
1answer
39k views

How can I duplicate a mesh along a curve?

I want to outline a curve in the form of text with a mesh (UV-sphere, cube etc.). How can I do that while saving mesh geometry without using the Curve modifier?
31
votes
2answers
3k views

Best place to put bug reports?

What websites or other resources do users of Blender have available to them to report bugs or problems with the program? I would like to get this issue cleared in Q&A format so that we can link ...
30
votes
3answers
9k 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 ...
30
votes
2answers
125k views

How do I bake a texture using Cycles bake

I created a interior scene and i don't know how to bake a texture using cycles bake.
30
votes
5answers
22k 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 ...
30
votes
1answer
80k views

How do I increase the render distance?

I have created a simple model here When rendering it the end of it is cut off How can I get the camera to render a longer distance?
30
votes
1answer
3k views

How to make a “reflective tape” material in cycles?

How can I make a cycles material that gets very bright when a light is shown on it, yet still has normal colors? I'm talking about the "Retroreflective sheeting" that can be seen on road signs, the ...
30
votes
1answer
26k 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....
30
votes
2answers
53k views

Cursor is set to move by increments. how to reset to normal?

My cursor is moving by every selection by large increments! Normally when I use Blender, I am able to select and move objects to any coordinate. Now, all of the sudden, when I select an object or ...
30
votes
2answers
104k views

How Do You Use An Image As The World Background?

I'd like to use a background image for my world, but I'm not sure how to do it. Right now I am using the sun as a lightpoint and it looks like sky and a flat plane (not realistic). I was thinking of ...
30
votes
2answers
108k views

Render not showing UV texture

I have added a texture to a cube in the UV editor and it shows up fine in textured view But when I render it there is no texture What have I done wrong?
30
votes
2answers
4k views

Can I use a custom Splash screen?

The default Splash screens are cool, but I'd like to add some of my own work to remind me of how awesome I am (no, not really). Is it possible to customize/change the splash screen?
30
votes
2answers
89k views

Toggle wireframe mode with hotkey

How do I toggle in and out of wireframe mode with my keyboard? Is there a hotkey for this? I'm a beginner (obviously). I thought I could find this in the "view" menu, but it either doesn't exist or I ...
30
votes
1answer
22k views

Can blender export 2D curves to svg?

Is it possible to convert/export 2D curves to an svg? I know you could render it to a raster image and then convert it with inkscape/potrace, but it would be nice ...
30
votes
3answers
9k views

What is the difference between the displace socket and a bump map?

Aside from the fact that you can control the bump mapping per shader with a bump node, are there any differences between these materials? As far as I can tell, they are the same. Is the displacement ...
30
votes
1answer
132k views

How to import a .mtl file?

I am new to Blender. I downloaded a .obj file of a plant model. When I unzipped it I found two files (.obj and ...
30
votes
1answer
3k views

How can Blender be augmented to display color critical and accurate results?

If I need to use Blender within a colour-accurate workflow, what do I have to do to set that up (including hardware calibration, etc)?
29
votes
7answers
10k 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. ...
29
votes
5answers
62k 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 ...
29
votes
5answers
55k 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 ...
29
votes
3answers
61k 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?
29
votes
4answers
84k views

Why are all the textures in my file pink?

I made a character, and its one of my first times texturing, and I saved my character into a new folder, and when I came back to the model ALL the textures were pink, I used to know what to do, but I ...
29
votes
5answers
35k views

Copy Physics To Multiple Objects

Using the cell fracture addon, I created many objects from my mesh. I want to have a rigid body physics on all of them. How would I copy one of the fractured pieces physics to all the pieces? I tired ...
29
votes
3answers
10k views

How to animate noise texture “seed”?

It's possible to animate a change noise texture by animating the texture coordinates with a mapping node or by animating the texture space, however this only works on one axis at a time (on the other ...
29
votes
1answer
7k views

How do I emit light from inside a object?

I need to know how to make the buttons in my blender project look the same as in this photo. Mine all look pale, even with the emission material. Is there anyway I can get my buttons like this?
29
votes
4answers
71k 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 ...
29
votes
3answers
25k views

How can I make a material only apply to a side of a plane?

How could a one-sided material be achieved with the Cycles renderer? I would like to create a plane that is completely transparent from one side, and a mirror from the other side. It would be cool ...
29
votes
5answers
39k views

Copy transforms from one object to another

I want to an object to have the same transforms (location, rotation, scale) as another object. How can I copy the transforms from one object to another?
29
votes
2answers
48k views

How do I rotate an environment texture?

I've loaded an HDR image into my scene as an environment texture. However, I need to rotate the image, and so far, haven't found a way. I assume this is possible, but I need to know HOW.
29
votes
1answer
41k views

Where are my screencast keys?

I can't find the Screencast Keys which allow me to start the display. I have tried the right hand pop-up menu using the hotkey N, but I could not find the Screencast Keys menu which is usually located ...
29
votes
1answer
54k views

In Edit Mode, is it possible to invert selection?

I wish to select areas of a mesh, but it would be much simpler to just select the ones I don't want selected (because they are easier to access), and then inverse the selection. Is this possible?
29
votes
1answer
19k views

what can you call from the attribute node?

I know you can call density or flame for example from the attribute node. I was wondering what else you can write in the name slot. And maybe a bit of explanation of the attribute node. thanks in ...
29
votes
3answers
88k 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
29
votes
9answers
43k views

Any Video formats that render with Alpha Channel?

Does anyone know if there are any video formats (besides the HUGE uncompressed avis) that you can render in that maintain the alpha channel? (i.e. for after FX etc.) I used to use quicktime, but ...
29
votes
3answers
36k 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 ...
29
votes
1answer
42k 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).
29
votes
2answers
19k views

Light spectrum dispersion effect in Blender?

I'm trying to achieve the effect where a beam of light sent through a prism or other refractive object, separates out into the light spectrum. (See image below) This effect is especially useful to ...
28
votes
3answers
15k 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 ...
28
votes
2answers
51k 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 ...
28
votes
1answer
24k views

How to assign a new material to an object in the scene from Python?

How can I assign a new material to an object in the scene via Python?
28
votes
2answers
9k views

How to create Bokeh circles?

How can I render bokeh circles? Nothing I do seems to work. I tried using an empty as the focus point for a cube, with some point lamps in the background with about 2000 strength, but it doesn't ...
28
votes
7answers
131k views

How to make all faces flip to the right/consistent direction?

What's happening is that I have tried to flip the normals, inside and out, but there are always faces which have to be flipped! Normals recalculated Inside View If I flip them again, all faces get ...
28
votes
4answers
80k 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 ...

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