Questions tagged [command-line]

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

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13 views

Command Line OBJ Model Merging and Texture Applcation

I would like to use the command line to take 2 obj files and merge them while also merging their associated material files. I would also like to be able to in the same command line apply a texture to ...
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21 views

How can I make Blender to exit with the same exit code as the python expression?

I am running a python expression through blender from the commandline. I want to know if the python expression is executed correctly or not. But Blender always exits with a 0 code. Is there any way to ...
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14 views

How are scripts from commandline executed

to state it right away, I'm a complete beginner to scripting in blender. I have a simple python script to change the text of a text element. The script works when run from the scripting tab in ...
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53 views

Blender 2.8 - AWS EC2 command line EEVEE render

I have been trying to get this to work for a couple days now. I have an EC2 P2 instance with NVIDIA CUDA configured by default, its a Deep learning Ubuntu AMI. This OS does not have a GUI so ...
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24 views

Calling blender in PHP outputs nothing

I'm currently running a python script in my command line that uses blender: blender -b -P script.py -- argument1 This works fine in my terminal however it ...
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19 views

Is there some way I can update the viewer node during background rendering to output the correct results?

I'm rendering several images from one blender file and I would like to manipulate the pixels of the render output directly. I implemented the workaround from https://blender.stackexchange.com/a/71264/...
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How to install blender 2.79 -on-centos-7 DEDICATED SERVER? (CentOS Linux release 7.6.1810 (Core)

Only need to use blender to render in the background via .py script, GUI not needed. This video is why I think it will work, published on Jun 27, 2019: https://www.youtube.com/watch?v=LbadAU8CULs (...
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32 views

How to start rendering (and save result) in terminal on Ubuntu?

I am getting ready, to try out cloud computing for Blender rendering, that's why I'm curious if I can just drop the .blend file and render the scene from the terminal. PS: Can Somebody tell me if I ...
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65 views

Is there any way to iterate the name of output image file?

This is the command that I'm putting into console: ...
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1answer
57 views

Blender - b Why blender is quiting?

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18 views

Blender as a Python Module Mac

I've been following this tutorial on how to build blender as a python module. I am current working on a Mac. I've successfully got the source from Git, but I'm stuck trying to edit the CMake ...
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1answer
56 views

Display full error at the bottom right of blender 2.8

I am using a python addon throwing an exception and i can't figure out how to display the full error in blender 2.8+ :
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24 views

Program shutting down after 1 minute

I have come back to Blender after a while of being away but now when I open Blender it closes the program after 1 minute of it being open without giving a message. I have tried reinstalling the ...
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22 views

why do i am getting unrecognized arguments while parsing with argparse? [duplicate]

i am running a blender script where it takes command line arguments which are these ...
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38 views

blender Python script not running from command line in background mode

I am using blender from last 2 months and i built a python script to generate animation and it was running pretty nice from command line by ...
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98 views

Does Blender 2.8 (cycles) require OpenGL 3.3 even when rendering on command line?

Blender 2.8 seems to be running only on OpenGL 3.3. I would like to test out Blender 2.8 rendering on Raspberry Pi 4 which comes with OpenGL ES 3.0 support only. Does Blender 2.8 Cycles require ...
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30 views

How to show operator properties when running operator in scripts or console?

I run an operator in the console, but the operator properties are not shown in Tool Panel. However, if I run the operator from search, the properties will be shown up. How to show operator ...
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18 views

Dynamic sys.stdout memory location, constantly changing the address

I am going to use logging.StreamHandler in Blender console. But, sys.stdout is constantly changing in the memory. In Windows Console: In Blender Console: Because of that, I cannot use logging....
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27 views

2.79b to run script using command line in windows, preferably with a desktop shortcut or exe

Here's the code i have written so far, it's working inside blender text editor. I however like to run this script without opening blender, with command-line, better yet to create a shortcut icon on a ...
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18 views

Command Line Arguments for Hybrid Rendering (Parallel CPU + GPU)

There doesn't appear to be anything mentioned in the 2.8 user manual yet, unless I missed it. Are there any CLI arguments we can pass to set it to hybrid rendering? My blend file is setup to do this ...
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1answer
56 views

Different behaviour in script compared to Python Console

I'm running a script in Blender 2.79b to save 2D proyections of a 3D face model with annotated facial landmarks, I apply random transformations to the mesh and the landmarks, render the mesh and save ...
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37 views

Failed to set 44100hz, use 48000hz instead [duplicate]

How do i fix this? Ive used youtube videos and online information but nothing helps. My computer is an Lenovo, Ideapad 330. Its processor is an AMD A9, Radeon R5, 5 compute Cores 2C+3G. It also had ...
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30 views

How do I use a cached/baked smoke simulation with command line rendering?

Under cache in the physics tab on the smoke domain, I have Use Library Path and External checked and a ...
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20 views

How Blender uses the command line to detect missing texture files

How does Blender use the command line to detect missing texture files and display prints? I am not very good at English.
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58 views

Open blend from script and render after interface fully loaded

Blender 2.79b Ubuntu 18.10 I use CLI to start Blender. My blend file is simple animation with a movie appended to one object, to be played during animation. When I run ...
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91 views

Headless rendering on remote Ubuntu server results in blank render

If I try and render this .blend on my Windows machine, using this command, I get the correct output: .\blender.exe -b testrender.blend -f 0 -F PNG -o frame_0.png ...
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90 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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191 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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71 views

Is composite able to be rendered by command line?

Could composite be done by command line too?
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82 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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18 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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48 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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107 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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205 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
79 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
876 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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25 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
367 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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94 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
43 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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30 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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28 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
108 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
85 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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47 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
132 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
126 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, ...
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2answers
1k 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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124 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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82 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, ...