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30
votes
9answers
47k 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 ...
30
votes
3answers
30k 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?
30
votes
1answer
2k views

Physical iridescence in Cycles?

Having recently seen the Siggraph paper A Practical Extension to Microfacet Theory for the Modeling of Varying Iridescence, I of course said to myself "I have to have this in Blenderrrrr!" and started ...
29
votes
7answers
6k views

How do I make a sphere out of a spiral?

How do I make a globe into a hollow sphere made out of a spiral? In other words, how do I make a spherical spiral, or a spiral follow a spherical shape?
29
votes
5answers
58k 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
67k 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
10answers
38k views

How to Combine two Normal Maps?

I made a high poly model and then baked its textures onto a low poly model. Now I want to give another normal map's details to the model. How can this be done?
29
votes
3answers
12k 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
7answers
144k 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 ...
29
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 ...
29
votes
4answers
93k 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 ...
29
votes
3answers
102k views

How do I convert a triangle mesh to a quads one?

I'm throwing a 3D triangulated mesh into an acoustic simulator. The simulator instructions say that ideally it wants quads. If it receives triangles, it will consider them as a degenerate quad (i.e. ...
29
votes
1answer
12k views

How to determine lens undistortion values for motion tracking?

In the camera setting in motion tracking, how do I tweak the K1, K2 and K3 value properly. I was told that these values are not necessary to tweak but I do want to adjust it, just for the sake of ...
29
votes
3answers
103k views

How to save render?

Every time I render an image and try to save it, it just disappears. How do you exactly save a render? I am using a mac.
29
votes
2answers
41k views

Possible to bake texture to new UV map?

I have a finished model where the UV maps overlap - lots of wood that isn't detailed to be particular to the model. I'd like to re-map the texture so that specific details can be added. I'd like to ...
29
votes
1answer
16k views

Why are the longer edges being beveled more?

I'll preface this by saying I'm very new to Blender - I'm trying to put a bevel on an edge, looks something like this: As you can see, the vertical side is much longer than the horizontal side. When ...
29
votes
1answer
45k 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
3answers
30k views

How do I scale from one side side only?

How do I scale from one side side only? I want to keep the left side of a object in place, but scale it smaller from the right. See this screen shot: I want it to end up like this: But I had to ...
29
votes
1answer
58k views

Why can't I import a SVG file from Adobe Illustrator or Inkscape?

I've tried multiple times to import a SVG file from illustrator CS5.5 to Blender 2.71 and 2.73. However, I do not see a mesh, curve, or anything pop up in my "Outliner" window. So I know its not so ...
29
votes
4answers
35k views

How increase/decrease undo steps?

I've been working on a mesh in edit mode, and have done several hundred actions. After realizing I was clearly going in the wrong direction, I hit Ctrl+Z a bunch of times, but it only took me back 20-...
29
votes
2answers
15k views

Can Cycles renders be done from the command line?

It seems that Cycles is mainly built in the form of Python scripts (as far as I can tell). Is it still possible to use Cycles to render a .blend file from the ...
29
votes
1answer
45k 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
3answers
72k views

How to deselect using box select?

How do I deselect using the box select tool? I have read about middle mouse button and some other shortcuts but they don't work for me.
29
votes
3answers
16k views

Is the Blender GUI package available for other programs?

I really love the look of Blender's built-in GUI, and would potentially like to use these tools in some of my other Python applications. As I understand it, Blender created all of these tools from ...
28
votes
6answers
5k views

What's the fastest / most fun way to create a fork in Blender?

Related challenge: What's the fastest and / or craziest way to model an arrow in Blender? I tried to make a fork in Blender, but it was so boring I fell asleep. Is there a faster / more fun way to ...
28
votes
3answers
10k views

What is Dot Product?

I am doing this Blenderguru tutorial on Making Fire and at some point he is adding the Vector Math node Dot Product to his material. And he says that he does not understand what he is doing but this ...
28
votes
3answers
18k 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
24k views

How can I get better results when doing camera motion tracking?

Whenever I do camera tracking in Blender the reconstruction is always zooming out or not on the axis. I have a great quality camera, but the end results of the camera tracking always has the model ...
28
votes
7answers
43k views

How do I make a normal/displacement map when all I have is a photo?

In order to make a rendering look more realistic some additional maps are useful. The documentation lists: diffuse,specular displacement-maps . I watched a video tutorial The Secrets of Realistic ...
28
votes
1answer
15k views

How to simulate a rope?

I'm trying to simulate a rope (that later might get pulled on the ends*) that interacts with some obstacles. So far I created a plane as the floor and a cube as an obstacle, and activated "collision" ...
28
votes
5answers
25k views

How to distribute objects evenly?

how to distribute different objects evenly in Object Mode? I know about dupliverts, particles, array modifier, etc, but they do not serve as a good, general solution. EDIT: I have a scene with a ...
28
votes
4answers
23k views

Glow with depth in Blender?

What would be a way to create a glow in Blender. For that purpose I've been always using the compositor. However, that is pixels work, which means it is a 2d work. To make a 3d one, do I have to use ...
28
votes
1answer
29k views

How to change Blender's default startup settings?

How can I change Blender from the default cube/lamp/camera default setup? Also, is it possible to change other features, such as the default view direction (Top, Side, etc) or the Editor type (3D View,...
28
votes
1answer
11k views

How do texture coordinates work?

How exactly to texture coordinates work? I know they are represented by vectors, but how does a vector store texture mapping information? How does each type of texture coordinates work and what are ...
28
votes
3answers
8k views

How can I change the centre of rotation of objects during an animation?

I have developed several puzzles in Blender, and to test them I wanted to animate them. The first problem I encountered was the rotation of an object around a central hub. Between keyframes the ...
28
votes
1answer
22k views

How to move multiple faces along their individual normals?

I'd like to grab multiple faces and move each one along its normal. Is there a grab individual command?
28
votes
2answers
4k views

Scientific Illustration: Non-photorealistic rendering of sparse wireframe with dashed/dotted lines for backfacing areas - Blender 2.80

I'm interested in creating a material that gives this end result: I'm studying the possibility to use Blender as a tool for scientific education in pure mathematics. The idea is that the material ...
28
votes
4answers
10k views

Blurring/Feathering a Procedural Pointiness Mask

I'm trying to create a procedural mask to affect the sharp edges of my model using the Pointiness output from the Geometry node, ...
28
votes
5answers
184k views

How to import a .max model into Blender?

I've tried to import but I don't see the (.max) file as an option when importing. Is there another way to import the 3DMax model into Blender for rigging and animation?
28
votes
3answers
21k views

Cycles: Shadeless “Shadow-catcher” Material for Rendering onto Footage

I am superimposing CGI over video footage, and have run into a problem in making materials for objects that act as 'shadow catchers'. Essentially I want a shader that is shadeless—like an emitter—but ...
28
votes
8answers
83k views

How to remove interior faces while keeping exterior faces untouched?

I built something Minecraft style model by cubes. Now I met a problem: when I'm trying to remove all interior faces, it appears that some exterior faces are influenced inevitably. I wonder if there is ...
28
votes
3answers
28k views

How can I use my Blender models in WebGL

I would like to create WebGL applications and use Blender as a modelling tool. I don't necessarily need to translate game engine functionality to WebGL but I would like to retain as much of the UV ...
27
votes
4answers
78k 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 ...
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
2answers
36k views

How can I animate the camera in a perfect circular rotation around a fixed position?

I have an object at a fixed position in 3D space. I would like the camera to circle around it while facing it. I want to path of the camera to be circular in 2D, meaning that it does not move up or ...
27
votes
5answers
3k 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 ...
27
votes
4answers
56k views

Hiding all but the selected objects?

I was doing my best to follow this tutorial from the Blender Guru, but, alas, 8 minutes in I've run into a real spot, a few moments after this spot in the video. I can only hide the selected, not ...
27
votes
4answers
45k views

Is there an unsubdivide function in Blender?

I am wondering if there is a modifier or tool that will essentially undo a subsurf or subdivide command.
27
votes
2answers
110k views

How to 'merge/dissolve' two faces?

I had trouble merging/dissolve two faces together, like merging these two faces in the screenshot. Any help is appreciated :)

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