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19,192 questions with no upvoted or accepted answers
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3
votes
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51 views

Collision Object for particle system

The hair you see in the picture is created with a particle system on a vertex group. The hat is a separate object. Is there any way to make the hat a collision object so that the hair stops when it ...
3
votes
0answers
241 views

Rendering with OpenGL in Blender does not show the intended rendered image or animation

I am trying to render animations and images fast using the OpenGL feature in Blender but even though I want it to render a fully rendered image or animation, it only renders the solid image, or the ...
3
votes
0answers
55 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 ...
3
votes
0answers
108 views

Convert polygonal cube to solid primitive cube/box

I have a radiation analysis program (NOVICE by EMPC) that only accepts 3D models made up solely of solid primitives, such as cubes or "boxes". My strategy is to "voxelize" complex models using ...
3
votes
0answers
43 views

Can't see the complete statistics on info panel

Here's the screenshot of my blender. Some words and numbers are only shown like "...", so I can't see correct numbers of statistics . Can anyone help me to solve this problem, please? Thanks
3
votes
0answers
52 views

Shell based deformation in blender

Is it possible to do in blender a "shell based deformation"? Basically given a mesh I want to pull few points and distort the whole mesh in a way that curvature due to distortion and pulling is ...
3
votes
0answers
72 views

Light / Mesh inconsistency in one area - Cycles

I'm trying to understand what's wrong with the lights in my scene. I've made some kind of sci-fi corridor, inspired by the interior of an aircraft cabin. The main mesh is first mirrored and then ...
3
votes
0answers
69 views

Hdri, controlling the image exposure vs the light it is casting

I have a scene where I am using a HDRI as the environment lighting but also using it as the background image, now the problem I have is that the image seems to be a lot darker than the light it is ...
3
votes
0answers
108 views

First attempts with SSS - where is the nose?

I am trying to make the skin for my female mesh and watched some tutorials on Skin Shaders. I tried to rebuild YanSculpts Tutorial https://www.youtube.com/watch?v=ktsyL2Kp5bQ&t=388s and the result ...
3
votes
0answers
87 views

Fluid leaks even through two thick obstacles

In short: My moving obstacle leaks all the fluid that it's supposed to hold. I have tried tens of changes in the parameters (and all the solutions to similar questions), but it's not going to get ...
3
votes
2answers
251 views

Getting 0 Volume for object

I am trying to calculate the volume of a 3D scanned object using the 3D Print add on. The object was captured with a structure sensor/ipad and then imported to Blender (version 2.79). The scanned ...
3
votes
0answers
71 views

Setting particle color with generated m x n image texture

I have a large particle system in which the particles (stars) are colored according to a generated image texture. The image texture was originally 119,617 wide and 1 px high. No matter what I did, ...
3
votes
0answers
48 views

Trying to open unknown but simple looking (just geometry) ascii 3d model file.txt in blender

So I have this weird .txt file for a really old game project. I don't know what kind of file it is but it is a text file (.txt). It contains stuff like this. It should be 3d model in some weird txt ...
3
votes
0answers
203 views

Artifacts when rendering irregular mesh in Cycles (black lines)

when I render with Cycles any mesh (specially planes) with a bit of irregular shape (by using previously, for example, a displacement map) some black lines appear on it. Those black lines are not ...
3
votes
0answers
57 views

Size limit of generated texture images?

I'm using generated texture images to set the individual colors, emission strengths, and sizes of 119,617 stars imported from the Hipparcos catalog. My texture images are each a single row of 119,617 ...
3
votes
0answers
330 views

How to use bgl?

I want to render simple lines on the 3D viewport through a modal operator but not using glBegin/End because those commands are deprecated in opengl 3.3 and will not be avaliable on 2.8 leaving me ...
3
votes
1answer
265 views

Reduce/Remove Sub-edges in Skin Modifier

When using Skin Modifier it will create sub-edges/intermediate edges (Marked Green on the picture) between two control vertices (Red dots on the picture). As far as the shape of the object goes, it ...
3
votes
0answers
381 views

Rendering progress bar doesn't show me the total percentage

Hi I have some questions regarding status bar when doing the render. when rendering animation, i can see the progress bar, but it only showing the progress of current frame rendering. Is there any ...
3
votes
0answers
264 views

How can I properly wrap complex objects?

I'm having problems with the Shrinkwrap modifier. I wanna wrap this dragon on the objects surface. But instead I get this :( I've tried with Curve too... Can anyone help me? Thanks... And sorry ...
3
votes
0answers
465 views

Simulate folding paper using cloth modifier

New User here. I seem to be having issues getting the cloth modifier to simulate paper folding over itself. At a point the cloth becomes stiff and does fold at a given vertex. I would like the paper ...
3
votes
0answers
62 views

Slide vertices based on angle of adjacent edges

I want to extrude a boundary edge such that angles between any given newly generated perpendicular edge and the edges on either side are equal. That is, I want to do this: The gif was accomplished by ...
3
votes
0answers
45 views

How to customize height of buildings with the OSM add-on?

I'm having problem regarding to the height of each of the building. I want to have different heights of the building like what is look like in that particular place. What should I do? I was thinking ...
3
votes
0answers
81 views

How to access Normal and Tangential force values of objects during physics simulation?

I have a couple of soft body objects that collide with each other as shown below. My goal is to get information on the Normal and Tangential forces for the selected shape. I wonder, is it possible to ...
3
votes
0answers
300 views

What is the fastest way to get pixel data out of the camera?

I'm trying to speed up a script that has to generate a black and transparent object (those are the only two RGBA colors), and use the pixel data coming from pictures of it shot from multiple angles. ...
3
votes
1answer
487 views

Random placement of cylinders with random orientations

I need to write a script that randomly distributes spheres (around 300) in a specific space and after the placement of the spheres I need to randomly distribute cylinders(5 times the number of spheres)...
3
votes
1answer
441 views

Blender unit conversion without scaling relative to the scene?

I'm a fairly new employee and Blender user (long-time Maya user). I may have gotten myself into a bind and hoping you all can help me out... As a new employee, one of the first things I asked was ...
3
votes
0answers
175 views

Rendering to Viewer Node in headless mode

I'm running Blender 2.79: /path/to/blender -b empty.blend -P script.py With script.py: ...
3
votes
0answers
206 views

Nodegroup: Missing data block

A Cycles node group in a file of mine seems to have lost its data block somehow. The group still shows its inputs and outputs properly, but the name of it has changed to Missing Data-Block, and no ...
3
votes
0answers
768 views

How to convert .obj to .stl in blender via python script

I want to convert .obj to .stl in blender via python script.Here is my code. ...
3
votes
0answers
105 views

Prevent rigid bodies used as particles from going through each other

I'm a student looking at microstructures of foods. I created an 'emulsion', but the droplets 'go through' each other. See image. The image shows a rendered slice of a box filled with balls (after ...
3
votes
0answers
61 views

How do I find which materials are using a particular node group

I have a blend file that I am using as a materials library. I have discovered that there are node groups that were not named, so I have a collection of NodeGroup.xxx groups. I would like to find the ...
3
votes
0answers
227 views

Strategy for Generating a Normal Map Projection From a 3D Model

I am still relatively new to Blender, and I am currently using it to model 3D vehicles for a 2D game. The 2D-rendering engine (Pixi.js) creates an illusion of depth using a normal map (as ...
3
votes
0answers
255 views

GPU Rendering Stopped Working

I was using GPU CUDA rendering with Cycles and it was working fine, but part way through the render it stopped working and I had to continue the render with the CPU. Now the "GPU Compute" option in ...
3
votes
0answers
706 views

Ambient Occlusion with Cycles

So far I've been using the following setup to render the pure object-shadow in a studio environment. Rendered with BlenderRender and than composed in Photoshop. But since the fact BlenderRender will ...
3
votes
0answers
419 views

How do I get particles to “grow” on or follow a surface (ex. below)

What's a good way to have particles grow and shape a surface like below? https://vimeo.com/203757114 I imagine this was done in MAX or C4D. Possibly with animation nodes? I have no idea here. To ...
3
votes
0answers
74 views

How can I do anamorphose with blender?

I every one, I'm wondering some can helping me, I want to create a wall anamorphose like Georges Rousse I just want to put a text in 360° in all the room project from the perfect center and after be ...
3
votes
0answers
208 views

How to fix high valence vertex?

I discovered a vertex on my mesh with 6 edges connected to it. It is causing problems with smoothing. How do I solve this problem without deforming the mesh?
3
votes
0answers
237 views

Strange Rendering Behaviour…Branched Path Tracing

I started rendering with Branched Path Tracing after learning about the benefits. However, after waiting for hours for a render to finish, the renders always end up with some blocks looking like they ...
3
votes
0answers
194 views

Video editing multichannel audio

Is there a way to render a video with multiple audio tracks? I've found these two subjects related to the import of files with several audio channels: How do I load an mp4 video with multiple audio ...
3
votes
1answer
45 views

Animation smoothness and correctness when exporting

I have a very low-poly model with an armature, animated with 4 key-frames over a cycle that I want to repeat seamlessly and smoothly. In Blender itself, I get a mostly smooth rotation, but with a ...
3
votes
0answers
319 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/...
3
votes
0answers
315 views

How do I fit these clothes onto my base mesh?

So I have this mesh that I've already rigged, and I want to add clothing to it. But, the clothing I downloaded from a mesh-sharing site doesn't exactly fit my mesh: Do I have to modify the dress ...
3
votes
0answers
330 views

Centre-of-mass at a different location from the object's origin?

So I'm modelling objects where the vertices are aligned to the grid, and I snap the objects to the grid often so it is important that the origin is aligned to the grid as well. Of course when adding ...
3
votes
0answers
616 views

Blender crash on startup immediately

Double click on Blender. Black screen open without message. Blender window open in gray color. Both windows close. Laptop: Acer Nitro 5 AN515-51 Software: Blender version 2.79a OS: Windows 10.0....
3
votes
0answers
249 views

Avoid converting to tris when preparing file to 3D print

I created a low poly alien in blender and wanted to print it exactly the way I created it. It's modeled in quads which are converted to tris when exporting the stl. I know stl works with tris but it ...
3
votes
0answers
86 views

Why is there a difference in coordinate system Cycles obj normals vs. Blender Render obj normals?

Baking normals of a geometry in Cycles and in Blender Render results in two different colours (coordinate systems), although both are set to "object space". When I calculate normals with C++ code, I ...
3
votes
0answers
163 views

How to debug (more or less) random segfaults?

I ran into a wall with my add on development. (I am still a beginner with python and programming and add on development, so please be lenient). I am running a modal operator to do some changes on the ...
3
votes
0answers
383 views

Getting the results of a rigid body simulation via Python

I'm trying to run a physics simulation with a single rigid body (cylinder) launched randomly on a flat surface. I want to know using python on which side (or edge) did the cylinder land. The ultimate ...
3
votes
0answers
197 views

Long and thin connections between 3d metaballs

Is there a way to create the effect of these long and thin metaball connections in Blender? This image is a screen capture from http://paperjs.org/examples/meta-balls/ I Personally haven't had much ...
3
votes
1answer
358 views

How to edit xyz F-Curves at once?

Is there a way to edit/move multiple f-curves (xyz) at once? I am editing a Cube and got it to scale up. To get a feel for the right timing, I'd like to edit all xyz f-curves at once during playback. ...

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