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37
votes
2answers
11k 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 ...
36
votes
6answers
66k views

How to make a circular array using offset object as center?

We know that the there is an Object Offset option for Array modifier, but when trying to make a circular array with that offset object as the center of the array circle, it always doesn't behave quite ...
36
votes
6answers
32k views

How to blur a texture node in cycles material?

For a Cycles material I need to blur a texture. If the texture where a Texture Image node, I can blur the image before adding it but in my case I need to blur a Voronoi Texture and so I can't do it. ...
36
votes
3answers
4k 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 ...
36
votes
6answers
63k 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 ...
36
votes
1answer
22k views

poll() failed, context incorrect? - Example: bpy.ops.view3d.background_image_add()

I keep on getting context errors in the Blender Python API. I don't understand the issue of the context in the API, how do I know which is the correct context? Thanks!
36
votes
2answers
131k views

Installing an addon

There is this addon that was built called Window Generator 2. It can be found at this BA thread. However, when I go to the download link it shows up in a new tab as a bunch of code. How can I ...
36
votes
1answer
24k views

What's the purpose of the EEVEE rendering engine?

Is it an alternative to Cycles, or just for the 3D viewport?
35
votes
4answers
37k views

Python: How to completely remove an object

How can I completely remove an object (for example a camera) using python scripting? Using something like: scene.objects.unlink(camera) Does not work, since it ...
35
votes
5answers
93k views

Can I use the timeline to erase keyframes?

Is it possible to use the green bar in the Timeline to erase keyframes? Is there someway to do something like erasing keyframes by scrolling over them instead of removing them one by one?
35
votes
3answers
19k views

Control Cycles material nodes and material properties in Python

How can I define the different properties of an Cycles material? Such things as glossy, glass, diffuse, RGB-color, emissive via Python scripting?
35
votes
4answers
5k views

Aliased edge around light source in cycles

Often when a mesh light is visible in the camera, the edges are not anti-aliased. No matter how many samples I do, the lamp border always looks jagged and pixelated. Is this a rendering error? How ...
35
votes
2answers
18k views

How can I create a convincing sea material in Cycles without using the ocean modifier?

I'm trying to render a sea scene animation, but using the ocean modifier and huge subdivisions isn't feasible due to the large scale. Luckily it's a calm sea and seen from quite a distance, but there ...
35
votes
2answers
171k views

How to render an animation as video in Blender?

Yesterday I was working on a simple animation, an animated logo. Here is an image of the progress: I already have the animation working and everything is okay with the project, but I can't figure ...
35
votes
1answer
2k views

Custom trackpad pan/zoom/rotate behavior add-on

I'm trying to write an addon to customize the trackpad panning, zoomimg, and rotating gestures, but can't find a way to read the actual trackpad parameters for position and so on. The properties in ...
34
votes
2answers
10k views

How to animate morphing a rectangular plane into a sphere

How to make a grid-to-sphere animation like this?
34
votes
3answers
71k views

Copy material to another object?

I saw a video where the person copied a material from one object to another (Cycles). How can I accomplish this?
34
votes
5answers
54k views

Pose Mode: How to reset transformed armature to its rest position?

I got a problem with pose mode. Like the heading says, I haven't found yet a possibility to reset the already transformed armature so that it exactly does look like the rest position (though it is ...
34
votes
1answer
8k views

How does EEVEE work?

We all know what Cycles is, at least to a first approximation: Cycles is a path tracing engine [...] Specifically, cycles is a "backwards" path tracer, which means that it traces light rays by ...
34
votes
3answers
4k views

What does the simplify AO bounces value do?

I recently discovered that turning on Simplify in the Scene panel, and setting "AO Bounces" to 2, reduced my render times from 30 minutes to 10 minutes. A three times speed improvement! But... I still ...
34
votes
1answer
55k views

Why doesn't my unwrapped model appear in the UV Editor?

I'm trying to unwrap a cube (I know, super complicated). I've got the seams marked, the UV editor open in a 2nd window, and all the geo highlighted. When I tell the cube to unwrap nothing happens. ...
34
votes
4answers
16k views

How to edit Parameters for an Object after it is created?

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 there a ...
34
votes
1answer
15k views

How to create a seamlessly looping ocean

Is there a way animate the ocean modifier so it loops continuously? I would like to make an animation where the last frame seamlessly goes into the first without the ocean "jumping": How can I ...
33
votes
3answers
42k views

How to make a cycles light emisson object invisible to the camera?

In my scene it is required to position the lights close to the main object like this: How I can make the light source invisible to the camera?
33
votes
2answers
38k 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?
33
votes
1answer
10k views

What's the fastest way to select every other vertex of an edge ring?

What's the fastest way, without using Python, to select every other vertex of an edge ring with an even number of verts?
33
votes
2answers
34k views

Is there really a way to make a true toon shader material in Cycles?

Is there a way to make a true toon shader material in Cycles? Here's, in order of importance, what would be ideal to find in such a shader: Must use Cycles Must be an actual shader Must not rely on ...
33
votes
3answers
27k views

How can I convert an SVG to a mesh?

In Blender, extruding and beveling of SVG imported objects, works very well when they are still bezier objects, but the conversion of a SVG path to a mesh is very ugly, with a lot of unnecessary ...
32
votes
3answers
49k 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.
32
votes
3answers
47k 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?
32
votes
3answers
45k views

Make a gold reflective object

Brand new to blender, and I'm trying to make a metallic object that is reflective. There are lots of tutorials on youtube, however none of them are compatible with blender 2.71 with the cycles render....
32
votes
2answers
4k views

Scale Space Between Multiple Objects

If I have multiple objects selected can I use scaling to make the objects closer together (without rescaling the objects)?
32
votes
3answers
5k views

How do I prevent soft body balloons from crumpling when they hit walls?

In the last homework project for my Blender class, I had to make a balloon bounce across a ceiling as a soft body driven by wind. I fiddled with the constraints but it always crumpled on impact with ...
32
votes
2answers
26k views

What is branched path tracing and how is it useful?

I noticed recently that there is a new option in Cycles for "branched path tracing", can someone explain what this does in easy to understand terms? Should we expect faster render times or less ...
32
votes
3answers
29k views

How to get perfect UV sphere Mercator projection?

I'm trying to unwrap a UV Sphere and I can't seem to get a perfect Mercator projection. What process should I follow to get a perfect UV unwrap that looks like the black grid lines in this image?:
31
votes
2answers
193k 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 ...
31
votes
4answers
19k 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
16k 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
6answers
72k views

How can I reset my menus?

I accidentally opened too many menus (or windows) and I want to reset them to default. It is really annoying, and effecting my animation. Thanks
31
votes
1answer
38k 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
78k 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 ...
31
votes
2answers
16k views

How do I exit a node group?

I selected a bunch of nodes that I wasn't using and that weren't connected and thought that I would see if I could group them. Well, Blender let me group them alright, but now there is a green ...
31
votes
3answers
55k 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 ...
31
votes
1answer
6k views

How to make 3D LUTs and use them in Blender?

Now that I understand a little bit more about how to work with Wide Dynamic Range workflow , scene referred datas and OPS(ASC CDL) node, I'm asking myself how to go further and create my own 3D LUT ...
31
votes
4answers
40k views

What is the best way to unwrap a sphere?

After reading How to get perfect UV sphere Mercator projection? It seems that there is no perfect solution for getting rid of the stretch at the poles of UV spheres. According to What is the ...
30
votes
4answers
11k views

How do I create a reflective white material?

I'm pretty new to this and this is my first question here, any help would be greatly appreciated. So basically what I want to achieve is a floor material as seen in this photo... ...the reflections ...
30
votes
4answers
48k 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 ...
30
votes
6answers
15k 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 ...
30
votes
5answers
21k 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 ...

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