Questions tagged [memory-management]

Questions related to memory consumption. This refers to both RAM (Random Access Memory) usage and hard drive space.

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20 views

My file isn't rendering and attempting to do so sometimes crashes PC (memory-related?)

I am trying to render a still frame of a complex scene. When I render I often watch the tiling render the scene over that default checkerboard pattern, and it usually finishes the whole image. However,...
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43 views

Blender python iteration of importing model gets slower

I'm doing a project with python in blender and let me summarize its process. Import a .pmx file(kind of 3d model) ...
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23 views

Optimize blender

I have been using blender since 2.7 without any problems. Recently I upgraded to blender 2.93 (latest as of today) and I noticed that longer it is open, the lesser it responds. Yesterday, while ...
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49 views

Scene is too heavy; how to identify most 'expensive' objects

I have a scene which is taxing my computer memory such that blender is almost unusable (not even talking about render here, just UI). I know I have a few very expensive objects, but it's been a few ...
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49 views

How to know how much RAM a FLIP Fluids fluid simulation will require?

I'd tried to run a really big fluid simulation with FLIP Fluids (built from source on Linux). I am not using the default fluid simulator. However, I wasn't happy with the quality of it, so I upped the ...
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48 views

Is it possible to import gltf in python using file-like objects?

I have encrypted and zipped gltf files on a server. I need to import them in blender directly. I found the way to load, decrypt and unzip the files to end-up with something like this : ...
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1answer
88 views

Blender rendering slows down over time

I'm new to Blender and I'm trying to render images for my PhD project. The images are rendered using a plug-in that would generates arrays of the scene from different views: https://github.com/gfxdisp/...
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20 views

Rendering multi-view directly to disk instead of RAM

I've set up a Stereoscopy -> Multi-View rendering to render hundreds of cameras with a Python script. Multi-view renders the cameras much faster than looping over ...
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69 views

Blender free up memory using command line

Note: This is my first post, so if my title is not appropriate, please let me know what an alternative could be for more relevant answers :) I am rendering a scene for someone(so no way for me to ...
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102 views

Blender states I'm "Out of memory" when trying to render, but I have tons of unused memory?

I'm having a recurring problem where Blender is refusing to render an image, stating I am out of memory, when I clearly have a huge amount of excess memory available. I'm attempting to render in ...
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Blender 2.93 status line says, "Memory: 7.19 GiB | VRAM: 7.7/8.0 GiB

Why does the status line say VRAM x/8.0 GiB? If I understand correctly this is saying that I am using x of 8 total. But I have 32 GiB total so why doesn't it say VRAM x/32 GiB?
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118 views

VSE Memory Usage KEEPS climbing! (To 50GiB before eventual crash)

TL;DR The Blender video sequencer memory usage climbs and climbs to a total of 40/50GiBs (RAM+Swap, I presume) until Blender crashes. It is impossible to render the entire sequence. I am using Blender ...
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45 views

Blender Crashes on "Freestyle"

I was setting up a simple scene, but with some particles and grass. It renders just fine. But after trying to use the "Freestyle" option, the required memory jumps from 9 to 15GB (when ...
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73 views

Blender runs out of GPU memory on Linux but not on Windows

(I'm using Pop_os, a Ubuntu based distro) I have a scene that runs out of memory very frequently on Linux and causes it to crash, rendering that same scene on Windows has no issues and works just fine....
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71 views

out of memory while rendering and sheep it is not rendering the specific material

my problem is that whenever I try to render a video on my laptop it says out of memory so I figured out that using a render farm is the choice it renders on the render farm but the problem is that two ...
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24 views

Out of memory after rendering thousands of similar scenes

I have a project on which I have to render thousands of different screenshots of a scene. It is basically a for loop that changes the scene, calculates some stuff and renders. However after around ...
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1answer
34 views

Particle system to create texture

I've made a forest scene with Botaniq add-on with lots of grass and trees which means lots of particles. Obviously slows everything down massively. Is there a way to "freeze" layers or ...
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27 views

Animation playback aggressively eats memory, doesn't give it back until program is closed and reopened

Blender is smooth as butter when I first open my file. I can work and move and edit etc with no lag. But after a few paybacks of my animation it will become more and more laggy. Taking a look at the ...
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31 views

Why 38000M peak when trying to render image [closed]

When I am trying to render an image with 32 samples the peak M gets to 38000 and the crashes with CUDA error for not enough GPU memory. We just bought a new computer Rtx 3070 32 ram Cpu AMD ryzen 9 ...
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23 views

AWS advice for rigid body simulations

Im using rigid body simulations to generate lots of small objects falling into a box for a project, this works well on my workstation but I hit some issues when trying to scale up the problem to have ...
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53 views

Do collection instances use less memory than duplicates?

I can't find a straightforward answer to this anywhere. I just wanna know what the fastest way to view multiple objects is.
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17 views

How to duplicate linked an entire model?

Lets say I've modeled a window (with the frame, glass, handle...), set the constraints limiting the translation, and set the parenting hierarchy. Now I'd like to reuse the entire window somewhere else ...
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112 views

Blender uses more ram than my pc has when rendering

When I preview cycles render in viewport, the performance is solid and using 1 or 2GB memory. However when I render, at 128 samples, my pc freezes after about 2 seconds. Also, I have only got 16GB of ...
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46 views

Render using way too much memory no matter how much I lower settings

I am trying to get my render time much lower. It's taking about 10 minutes a frame. which is obviously way too long considering that I need to do over 800 frames maybe even over 1200 by the time the ...
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Are there any known solutions to generic memory leaks?

I'm running Blender 2.91.0 (This is a completely new install) and as I use it, it starts to run slower, and the amount of memory it uses according to task manager steadily increases. If I shut down ...
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86 views

NVLink Pooled Memory Issues

My issue I seem to be having on one system is NVlink is plugged in, SLI States enabled maximize 3D, but still the information is duplicated. both cards are 2080's and the scene is a total of 11.6 gb ...
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Large memory consumption upon loading model

When I import a single large STL (700MB), Blender uses 3GB of memory. This is before any operations have been performed. While editing, the memory consumption jumps to 16GB and my computer grinds to a ...
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151 views

Understanding Memory Usage Whilst Rendering in Cycles

I am trying to understand memory usage whilst rendering in Cycles with a view to making good upgrade option decisions. I have a large scene which for my system is very heavy to render. I have 32 Gb of ...
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459 views

Relationship of textures and GPU/CPU memory [duplicate]

I am trying to transition from Eevee to Cycles on a very big scene. I am using: ...
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317 views

fully clear scene and cache from scene collections and their embeded components e.g. objects, meshes, materials etc

I have a script which I am loading mutliple .obj files of room models from the disk. Each .obj goes into sub-collections depending whether it is a room in the same house or not. In the beginning of ...
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386 views

1 Nvidia 3090 or 2 Nvidia 3080s for a 3d workstation? [closed]

Currently I'm running very large scenes for particle animations / simulations. I'm particularly concerned about the memory management distribution of the 2 3080 gpus approach for these very memory ...
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1answer
538 views

Poor Undo Performance: Blender 2.9

I'm having issues with Undo locking up Blender on the first undo action following some action. This happens whether I remain in one mode, or on one obj. Basically say I rotate a joint and I don't like ...
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1answer
584 views

How do i turn multiple of the same object into instances?

I have need to render a scene but have been running into trouble because it would run out of memory. The scene has a lot of leaves (999 to be specific) and they are all identical. How would i turn all ...
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163 views

Error, too many subdivision?

I am trying to render a still image with a well known Render Farm service. When I upload my file it returns the error: 'Project uses to much memory while rendering. Please check for too many ...
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1answer
180 views

Keeping Shaders in Memory

Is it possible to make Blender keep shaders in memory instead of reloading them each time I switch back to lookdev or render view? I am losing a lot of time switching between the views simply because ...
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2answers
139 views

Scripting - Where is data not shown in the "Info" panel shown?

I notice that Blender only logs certain things in the "Info" panel. Is there some other place that they log data(such as if one were to have 3 vertices selected, where would they store that ...
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31 views

What is the smallest possible .blend file size in 2.8x?

I'm trying to make a container library .blend file for common node groups and I cannot get the file to be smaller than 51.3 KiB (52 506). Can you do better?
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551 views

Blender freezes for 30 seconds every time I click

I wrote one question about its limits. Blender was being cute hahaha. Still, after that scene, Blender is being a pain. I am dealing with the blue dial every click, it last for about 30 seconds, it ...
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1answer
79 views

RAM Usage in VSE

I've just rendered a video in the VSE, and the output is 14.8 MB. When I use the option to "Prefetch frames" with Proxy Render Size set to Scene render size, or even "No proxy, full ...
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42 views

Efficient rendering of animated urban scene (using LiDAR point cloud)

I have a colourized aerial laser scan of a municipality that I would like to render in an animation. Below is an example I created for a small subsection: https://drive.google.com/file/d/...
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1answer
96 views

Is there a way to limit max RAM usage by Blender?

Since I'm fairly new to Blender, I'm not always aware of its (and my system's) limitations, and I accidentally overload my RAM kind of frequently while experimenting with for example adaptive ...
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1answer
41 views

how can I share variables between glsl and python in the bge?

I am currently writing a glsl shader in the bge, My question is, if I have glsl embedded into my python script, how can I if possible share memory/variables between my glsl and my python so the below ...
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78 views

How do I fix the Cuda out of memory?

I just created a scene in blender with some 3d models, but when I tried to render it, I just got the error Cuda: out of memory. The scene is really small, just 5 models, which are not high quality. I ...
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16 views

Constrainted objects displaced during rendering animation

Faced the following problem. When I've rendered an animation, some details were not where they should be according to the timeframe. This problem occurs only when rendering an animation (3 problematic ...
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317 views

File keeps getting a "Not Responding" error whenever I open a file

I'm pretty new to Blender so I am not quite sure what is happening but whenever I open this specific file, the program crashes. I've looked it up and I've seen it could be a memory error but if it is ...
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1answer
768 views

Why does memory and file size increase when objects are joined?

Why does memory file size increase when objects are joined? As you can see from the pic I am working on a building. When the objects are not joined file size is 50MB When I join them the file size ...
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1answer
451 views

How to remove unwanted textures to save memory

I have two textures in Blender that are for a desk I am modeling. Each texture is 4K quality and takes up a ton of memory. I only have 4GB of memory on my computer, so I can't render an image of my ...
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210 views

Blender crashing on memory usage problems? Results of several tests

I need to produce images of a certain minimum size (1000kb) when written to disk as a jpg file. for images that are not big enough, I am attempting to increase their size to the minimum by increasing ...
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506 views

Best GPU and RAM upgrade for compaq elite 8300 sff [closed]

I would like it to be equal or less than seven hundred dollars American. Thanks in advance!
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557 views

Cycles - Memory is not being freed

Blender 2.8 Cycles - Memory is not freed after using Z -> "Lookdev" or "Rendered". It seems like the data is staying in memory, even when switching back to Wireframe mode. This causes problems when ...