# All Questions

29,315 questions with no upvoted or accepted answers
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222 views

### Scale operator icon OR make template_icon clickable

I am trying to present the user with a gallery view to select a item from the thumbnails. Ideally, they click a button, are presented with the gallery view, and with a single click choose the item. I ...
278 views

### Hotkey to navigate scenes in Blender 2.8?

In Blender 2.7, i could change the layout with Ctrl + ← and Ctrl + →. In 2.7, the scene was layout dependent, allowing me to navigate the scene this way. However, in Blender 2....
257 views

### Is there a low level alternative for bpy.ops.mesh.separate()?

I am dealing with a great model, I have a problem, I want to divide it by parts, but bpy.ops.mesh.separate(type = 'LOOSE') seems to have a big problem, that is not ...
114 views

### How to access Density/Flame grid via Python in 2.82 (Mantaflow)

Does anyone know how do I access the density/flame grid for the new Mantaflow fluid simulation engine in Blender 2.82? The old path still exists: ...
386 views

### How to bake two objects (an item and a shrink-wrapped decal on it) into one texture image?

I'm very very new to blender and have been searching on how to do this for a while now to no avail, please forgive me if I'm posting a simple/answered question. I am making a very simple mask that ...
445 views

### Get image pixels from multiple viewer nodes

For Blender 2.81 and Cycles render. I want to access all of the following data passes from a Python script: Z Normal ...
457 views

### Respect unit scale when linking or appending objects

Appending/linking the same object with the same metric size from Blender files with different unit scales in Blender 2.8 results in objects of different sizes. It seems, Blender respects only the ...
188 views

### Calculating position difference in a driver

Suppose I have an object, that I move from A to B (by pressing the G button) on the XY plane. I want to automatically orient it, so it always faces the direction of the movement. Furthermore, I want ...
161 views

### FBX Import - What do these settings mean?

When importing an FBX file, most of the settings are self-explainable, however, there are some settings that I'm curious to know the meaning/use of. These are: (1) Import User Properties (what are ...
945 views

### Blender grease pencil shape keys

is there any possible way to achieve a similar result like here: https://www.youtube.com/watch?v=Tbp95snCPr4 with grease pencil? Or is there somewhere shape keys for the internal grease pencil tool? ...
199 views

### Blender 2.8 Cycles Projecting world background to an object

How can i project world environment hdri texture to an object,like camera mapping, i know i can use a material that has only shadows for later compositing it,and rendering the world environment alone, ...
644 views

### Eevee transparent glass on transparent background?

Ok, in 2.8 eevee I have "Transparent" checked on film tab, my material settings follow all listed here https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&...
93 views

### Is there a possibility to create non rounded corners with bevel tool or bevel modifier?

Is it possible to create sharp / pointing vertex with bevel tool or modifier the way it is shown on the right cube? I am able only to create the type of bevels as on the left cube - to get the ...
1k views

### 2.80 - use Eevee and Cycles together for motion blur issue

I have one question about one problem in my experiment with motion blur in Eevee. I know that in this time is not supported and maybe will be supported in future official release as another primary ...
312 views

### Optical flow generated from cycles render is not proper

Scene generated from Blender, and flow is given. As it can be seen the flow generated is not proper, it is in a zig-zag format. I see the scene at and above horizon have more zig-zag. Can someone ...
73 views

### is there any way to get to velocity of a fluid and use it in the cycle material editor

I'm trying to use flip fluids to make lava is there any way to use the motion blur vectors, or get the velocity to mix a material. or in the script editor is there anyway to drive that.
181 views

### Can Blender Internal Render passes be put back together again?

I'm stuck with a simple task. I need to tweak some render passes of the image, and then put them back to the combined composited image. For Cycles I use this scheme from the manual: It works as ...
389 views

### Update function for NodeSocket?

How do I set a callback for socket input change (value or link change) when having a custom node? I have a socket defined like: ...
198 views

### Why doesn't my parented smoke domain move with the parent object?

I have parented a fireplace, the firewood (the smoke flow) and the smoke domain. Unfortunately, the smoke domain doesn't move along when I move my parent object. I can't move it separately either. It ...
151 views

### Filmic color management and masks

I recently had the problem of having to mask (rotoscope) some footage in the movie clip editor and render out some elements to put in there. For rendering those 3D elements, I wanted to use the filmic ...
135 views

### Why does Select-All in Face-Select mode also select isolated edges?

Blender v2.79. Let's say I have to extrude all faces of this planar construction containing two edges not included in faces, and one isolated vertex: In this object, there are not hidden ...
190 views

### Smoke Simulation Vibrating

Last week I started making a volcano that was starting to erupt. I've got some sparks and I made a nice smoke simulation. I clicked Bake All Dynamics and then rendered. The result was a nice volcano ...
578 views

### Can Blender automatically reload external script files when they are changed?

I came across this question: Is it possible to run a script from an external editor without reloading the file? Which also was asked over here in a similair format: Workflow for developing add-on/...
652 views

### Assign a custom orientation to each instance of a dupli-object

I would like to duplicate an object along a path, and also have the ability to manipulate the orientation of each instance individually. Expected result: Like in the picture above, where each object'...
12k views

### How can I fix brush lag in Texture Paint?

It seems to be lagging in the viewport, and I don't know why. I just downloaded 2.79, since 2.78 seemed to have the same issue. I do not believe earlier versions had this issue beyond that. If I use ...
573 views

### Particle Instance Modifier : colour each instance based on the emitter texture (like Hair strands materials do)

In cycles, with particle hair strands, I can get the colour from the texture of the emitter object for colouring the entire strand. When I use the "Particle Instance" modifier on a mesh (a simple ...
551 views

### Modify a single plane mesh to match image based on alphas, create shape keys

My goal is to create the shapes of continents as they drifted from Gondwana to the present day. My proposed approach follows, but I would welcome alternate approaches or comments on this approach. I ...
372 views

### Why Cloud texture has square cell pattern?

When I am using Cloud texture as bump map in Blender Render, this cells appear. How can I make them go away?
177 views

### How to make a zoetrope out of a single mesh?

Can anyone explain how to go about making a 3D printable zoetrope like those in this video? https://www.youtube.com/watch?v=nom7NiTLrFg Unlike any other zoetrope I've seen, each of these are a single,...
2k views

### nVidia skin shader with the Principled BSDF

I've been using a skin shader primarily based on the Brecht skin shader, which is itself based on the Sum-of-Gaussians approach as seen in 14.4.7 from GPU Gems by nVidia. Its Cycles adaptation, which ...
495 views

### PyOpenGL and VBO Indexes

Long story short, I'm trying to do a modal handler that draws using OpenGL into the viewport. Immediate mode through BGL works fine, but is dog slow. I tried using VBOs through BGL but there seems to ...
542 views

### Corrupted UV map on exported and re-imported object

I have a problem with an object texture I import the object as obj and it's fine with the texture. But when I export the object and import it again with another form or type it's texture gets corrupt ...
4k views

### Convert Animation Nodes to Object and Keyframes

I have This Node Tree in Animation Nodes: As you can see it creates objects and edit their location. but When I render, even If I normally bake all the Dynamics, the cache disappears and then it ...
2k views

### How to convert image pixel values from 8bit to 32bit properly?

I'm testing code from this question:  import bpy ...
281 views

### “Search for unknown operator” On Start-Up After Removing Module and Shortcuts

For lack of a less drastic alternative, I created a whole module just for setting bpy.context.window.screen to a specific screen, since ...
2k views

### How to change animated object's origin without ruining animation?

For example: I have a character and a spoon which he is holding and moving thanks to child of constrain. My character releases the spoon a little bit above a plate. So I came up with idea to use rigid ...
131 views

### What do all of the mode enums mean?

What do all the various mode constants in blender operators documentation do? bpy.ops.object.duplicate(linked=False, mode='TRANSLATION') - Duplicate selected objects Parameters: ...
339 views

### Is there a low level alternative for bpy.ops.object.convert(target='CURVE')?

(Note: Somebody asked there nearly the same question as me and got a very nice answer. However, this was to convert an object to a mesh. I have exactly the same context as this person but I want to ...
189 views

### How can I derive from an existing Operator in Python?

When creating a new Blender Operator, you'll derive the class from bpy.types.Operator, like this: ...
881 views

### How to Switch Cloth Object Ready for Sewing Simulation into Printable Template

I'm making sewing patterns in blender, i.e. several pieces of flat fabric. Typically I create each piece as part of the same mesh object, and join them with edges so that the cloth simulator will sew ...
776 views

### accessing Blender objects from external Python IDEs

I would like to manipulate Blender objects from Spyder (not using the internal Python editor). Basically I would like to have Blender running and Spyder running as well, and then interactively access ...
82 views

### Standalone player enter key is considered a character (Linux)

What happens in the 'in-Blender' player: What happens in the 'Standalone' player: Any ideas on how to fix this?
202 views

### Cannot mix .user and .addon keyconfigs in register()

I've been messing around with keymaps lately and I've come across behavior that doesn't make much sense to me. I am searching the current keyconfig for a specific keymap item, removing it, then adding ...
793 views

### Relative and Absolute shape keys on the same mesh

is there a way to use both relative and absolute keys together on the same mesh ? i want to use absolute keys to deform muscle in a way, and relative to animate face shapes. both on the same model.
465 views

### Can an object have multiple rigid body constraints?

I want to simulate the motion of an artist's brush. A spine of pivot-constrained spheres will collide with a z-plane, which represents the canvas. To mimic the elastic properties of a bristle I need ...
4k views

### Blender scene animation exported to Three.js without bones or skinning?

I have a mountain range scene very similar to this: The mesh is a simple plane extruded to form a low poly mountain range, the animation uses 3 shape keys, a base and 2 for random vertices ...
238 views

### File output node and output panel both exporting during animation

I have an animation ready to render but there is a small annoying issue. I currently have a basic file output node to export the raw render and a mist pass and they are both set to export to the ...
5k views

### How to center the 2D Cursor in the UV Editor (Quickly)?

Is there a way to center the 2D Cursor to the UV Editor (Quickly)? Similar to pressing Shift+C in the default 3D Viewport?