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Questions tagged [command-line]

Questions pertaining to using Blender from the command line or using Blender's console window.

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15 views

Blender Crashes seconds after startup

{Lenoveo Ideapad 330, Windows 10, Intel core i5-825U @1.60 GHz 1.80 GHz, 8 GB RAM, Intel UH Graphics 620} Hello friends, I downloaded blender today to try it out. When I launch the program, the ...
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1answer
21 views

How to use Keyframes and the Python API programmatically?

Currently I have a default cube and 400 frames. Here's what I have working without keyframing ...
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0answers
22 views

Is composite able to be rendered by command line?

Could composite be done by command line too?
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2answers
32 views

duplicate the mesh in edit mode and flip normals using python script

I want to make my two sided (input model is collada). so, for that i want to duplicate all the faces in edit mode and then flip normals, and then export the model as fbx. i want to do this using ...
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0answers
11 views

Blender console loading for a long time

A few days ago I ran into a problem with Blender. When I open Blender the command window just stays there for several minutes and then blender opens, the problem is that blender just freezes when I ...
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0answers
18 views

Join two imported objects to set shape key via bpy script from cmdline

For an automated workflow (call from cmd), I am trying to import two objects into blender and would like to generate linearly interpolated shape keys based on the ...
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0answers
20 views

How to run Blender through VNC on Ubuntu?

I am using tightVNC to connect to an Ubuntu 18.04 server. When I try to start blender, I get the following error in the command line: ...
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0answers
31 views

Found bundled python and crash

If I open Blender 2.79b, it gives a command window briefly which says found bundled python: C:\Program Files\Blender Foundation\Blender\2.79\python I did this ...
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1answer
59 views

Rendering without fire when executed from command prompt

I am rendering from command prompt and output file is something like: expected: I executed this command(My installation Directory): ...
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1answer
78 views

How to render in command line? [duplicate]

I have a very very slow computer, but would like to animate 3D. I'm aware we can render via the command line. but I don't know how. I want to render the entire animation of my Tutorial.blend file in ...
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0answers
16 views

Render from Comand line

I am rendering a scene on some private HPC, they gave me putty to run render with command line: $ srun -N1 -pgpu blender -b test_gpu.blend -o //_###.png -P cuda.py -a everything works fine, but my ...
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1answer
80 views

How to export mesh object to FBX from command line?

I'd like to open a scene with certain mesh object and export it to FBX file from command line. I read some related questions; importing and exporting via command line as per https://stackoverflow.com/...
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34 views

Import SVG and export as OBJ using command line

I want to use the command line to import an SVG file type and export it as an OBJ file type. Being able to modify the scale and the extrusion would be a plus, but no other operations need to be ...
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1answer
36 views

Return the current release of blender on command line

Is there a way to poll the blender download website to return the current release candidates paths for blender. At the time of this writing there is a release for both 2.79 and 2.80 so i would like a ...
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0answers
21 views

Why is there a difference in getsizeof() returns for Blender's python console and Python Shell? (for basic types)

This is a getsizeof() return for basic types in blender's python console: And this is one (same args) in Python Shell:
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0answers
23 views

Blender flashes a cmd when I try to start it, but the program doesn't open

When I click on the blender program a cmd quickly flashes up and then nothing, I have tried launching the exe from C:\Program Files\Blender Foundation\Blender as well as the %appdata% folder. This was ...
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1answer
59 views

Blender building error 'fatal: unable to look up git.blender.org (port 9418)…or WSAStartup failed' Win64

im not a programmer, please help me like you would your grandma. Windows 10 64bit, followed all the previous steps from this page very carefully
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1answer
37 views

Blender hangs at command window

I cant start Blender right now. I used --debug to get some info about that. Unfortunately I only can see this: ...
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0answers
35 views

Is it possible to add images in the Text Editor?

A little bit of context: I've beeng working around some "interoperability" between Blender and other software/hardware like: Pure Data, reacTIVision, Arduino, Raspberry Pi, etc. I toyed with doing ...
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1answer
128 views

Rendering large amount of short videos with different generated “animation”?

I have a very specific and probably strange question to which I couldn't find any answers. I'm a computer vision researcher and I need some data for a "small" side project, I want to know if it's ...
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1answer
63 views

How do I choose the next item after using Autocomplete in the Python Console?

The list that populates below bpy. after using Autocomplete (Ctrl+Space) in the Python Console is: app, ...
2
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2answers
800 views

Environment variables specific to Blender? Do they exist?

Are there any global variables in Blender? I was searching for them in Blender docs, but didn't find anything. For example, I want to override the default /tmp directory with another directory. But I ...
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0answers
99 views

how to configure facility wide configuration files

We'd like to integrate Blender into our pipeline. With other software packages, we usually have cascading configurations: facility (eg configuring temp folders and common plugins) project (eg project ...
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0answers
61 views

Ubuntu 18.04 and Background Rendering produces transparent image

So I upgraded my system from Ubuntu 16.04 to 18.04. With that I had to upgrade Nvidia drivers from 384 to 390, and a reinstall of modprobe and cuda-toolkit. Blender works ok, GPU live rendering works, ...
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1answer
309 views

Rendering a cube as png file using Blender's Python API

I am new to Blender. I create a cube and want to render it. Since, we are later going to do this for large number of shapes, we are working with Blender's Python API. I want to save this rendering as ...
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1answer
26 views

How to select last imported object with console?

I'm writing a script for fast importing with CSV file. There's a lot of things, like location, scale and quaternion rotation. Problem with the location I've already solved, but scale and rotation are ...
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0answers
81 views

DAG zero… Getting clearer information from the Console Window

How do I get more detailed information for the following message? This message appears in the Console Window. DAG zero... not allowed to happen! The goal is to ...
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1answer
28 views

Blender Python Console Commands not completing before next one is interpreted?

I'm working with the default Blender file that has single cube object. I'm rotating it with Python and adding keyframes. The problem is that a ...
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0answers
141 views

Render with CLI and **then** save image with python command

I have this need: render with command line, with "-o" output option active, and then send a "-P" command, where into the python script I want to save again the image rendered. So, here what I came ...
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0answers
144 views

Is it possible to load file from memory?

Is it possible to load a .blend file from memory? Thus, open it without using its filepath (bpy.ops.wm.open_mainfile(filepath=l))...
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0answers
26 views

blender player extended monitor problem

I have an iMac and two mac Cinema displays connected using thunderbolt. The Cinema displays are setup as extended (each 2048*1152 giving 4096*1152 overall). The iMac is setup below the Left hand ...
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0answers
52 views

How to extract beginning part of 3D model files using Blender?

The business purpose is that I allow registered user upload different 3D model files. When other users review the file, he or she does not need to download the whole file (size about several Gbs), he ...
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1answer
91 views

Blender game engine data extract

i am trying to connect Blender game engine to a PLC(programable logic controller) so i can control a robot with blender game engine, i dont know where to start to take de bge data outside of blender, ...
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1answer
41 views

Blender command line open template

Hi and thanks for reading. I'm newbie and have problem to solve with Blender. We have a upper level app which will open a template of Blender with a button in GUI (for make difference startup file and ...
2
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0answers
316 views

How to ensure Blender uses the GPU when running from the command line on a headless Linux computer?

I have Blender installed on a Linux machine with 6 Nvidia GPUs (GTX 1060) I have an ssh connection into it but it doesn’t look like Blender is using the GPUs. The ...
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0answers
56 views

Start rendering a blend file from command-line WITH user interface

As the title says, I want to open a blend file from command-line (or rather with a batch file in Windows) and it should begin rendering the same way as if I pressed the Render Animation Button. I ...
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0answers
29 views

Export collada from CLI

Given a .blend file, can I export a collada (.dae) file using the blender CLI? The CLI docs give some examples but they all seem ...
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0answers
99 views

Is it possible to decimate or remesh via the CLI?

I have a very large .stl file. I wish to use Blender in CLI mode to reduce the size of the file via decimate or ...
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0answers
146 views

CLI (linux) rendering cycles, and cpu + GPU

I'm currently testing my first try at the rendering cycles on the CLI in Linux. this is the script I wrote for it. I was wondering what about using the GPU along with cpu.Laptop Specs ...
2
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1answer
69 views

Constant error message in console - reinstall and factory settings doesn't fix

I am seeing an error message in my Blender console constantly. Not sure if it is affecting performance of Blender or if recent errors in the software have been for other reasons. I have no idea what ...
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1answer
57 views

Cycles - Denoising + command line

Blender 2.79 Do you have any experience with the Densoising in a command line / batch render? I would really like to use this feature since we have to render a huge project for the University. I can ...
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0answers
34 views

How can I insert “blend_filename” into the output node?

One thing I often do is rendering via CLI, and I like to choose EXR format to have 32bit files ready for archive. I also like to have blender saving the jpg preview to quickly see it in OS filebrowser....
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0answers
157 views

Pass output of PyQt5 interface to Console

I'm running a PyQt5 QDialog interface inside blender. The interface launches fine but in other applications (maya/nuke/houdini) when I use a print statement in the interface, the output gets printed ...
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0answers
99 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: ...
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0answers
33 views

Unable to call Blender to run a script

I'm making a website. Here php executes a blender python script. I used exec('blender -p *path for script*',$output,$return) And put an if to check the result. ...
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0answers
75 views

Blender error SEGMENTATION FAULT.Anyone help me?

I'm running blender using command line. I've setup automatic script run. My file does image rendering as well as saving in a particular location. When I try to run my file in background mode, it ...
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0answers
21 views

How to know if blender freezes, in larger render jobs command line

I am rendering animations, and randomly i note that Blender freezes. It happen not that often, but when i render at around 18:00 to note the next day it crashed on 18:15 instead of working whole night,...
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2answers
1k views

How to properly paste Python function block into python console?

Hi i have some questions : i want to paste block of function into the python console and got a lot of indentation error. Is this a bug or do i miss something ? i'm using 2.79. I'm new in coding. ...
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0answers
45 views

how to check a python script all the time

for example if bpy.data.objects[1].location[1]>4: bpy.data.objects[1].location[1]=0 this script is only executed when I execute it from the python console and the position x of the object is greater ...
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1answer
486 views

Running Script and rendering from command line with external script

I'm trying to run a script like so from the command line blender -b oop-blender-demo.blend -P model.py followed by ...