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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Blenders Actual Limit?

Curious as to where the limit is on Blender so I quit freezing it up. I have 2.83 and I have reached the limits of Blender many times but I do not know the exact limits so I can skirt the edge. So I ...
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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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23 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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22 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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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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Using blender in Linux causes my ram to fill up

I've been monitoring my computer's performance while working on Blender. I'm currently on 2.82a. My machine is running Linux Mint 19.3. I'm currently rigging a model. While working on texture paint, ...
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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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14 views

Does applying the (displace) modifier have anything to do with memory usage?

Does applying the (displace) modifier have anything to do with memory usage? I'm having problems with my large scene which consumes all my 8GB of RAM but have a lot of objects with unapplied displace ...
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How to free memory?

I'm maxing my laptop memory very quickly with some of my .blend that comes from work (where I have 64Gb of Ram). Blender is slow and freezing a lot, this is almost unberable to work in this condition, ...
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63 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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50 views

Multiple Grease Pencil objects makes Blender lag and eventually crash

I'm trying to make my first 2D animation with grease pencil. I drew a walk animation of my character frame by frame, about 257 frames, then I duplicate it as object, change location and direction and ...
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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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how do i delete blender hidden materials = RAM? [duplicate]

How do I remove material data that I am not using and have removed or deleted. For example: I applied a 4k texture to a cube and the memory went to 300mb, from a 1k texture on the cube at 60mb ...
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Blender-kit add-on / chocofur-addon, why memory issues?

I have installed blenderkit and chocofur add-ons and I am trying to find out why the memory is massively used up in MB. Such as a cube with 1 texture from blenderkit = 100+MB, then when deleted by ...
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178 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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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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157 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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24 views

Why does Movie Clip Editor use so much memory?

What's the reason behind blenders intensive use of memory when it comes to video editing/tracking? I'm using Blender 2.8 and currently have a ~15 second clip loaded (@50fps, 3840x2160, 99779kbps, ...
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165 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 ...
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73 views

Is my hardware what's causing Eevee not to render?

I've been using Blender 2.79 for a few weeks and just upgraded to 2.8. I want to try out a bunch of new tutorials using Eevee but it looks like I might not have a powerful enough computer. I've been ...
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29 views

Memory requirement /management for blender

I was trying to open a large scene (970mb) OBJ file in blender and it sucked all 16gb of my ram and crashed. I figure I need to increase my ram (thinking 64gb once the 3900x is back in stock) but in ...
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213 views

Can Blender use Virtual Memory?

I have 2GB of RAM and I just want to use this program. Can Blender use Virtual Memory? Getting one image rendered takes like 20-30 seconds and it's not even on the full resolution.
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Can I use a USB drive as memory for rendering?

I have a really low-grade laptop and I find that I run out of memory for rendering even very basic stuff. I have a thumbdrive and I was wondering I could use it in place of RAM. Does blender allow for ...
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Segfault when going back to Object Mode, on unrelated data

I am writing an Addon. I have a list of Vectors: centers = [p.center for p in obj.data.polygons] In a later section of code, I do the following to a different ...
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Sharing of host memory between GPU and CPU. Is this implemented and working in 2.80?

Does anyone know if sharing of host memory between GPU and CPU for rendering has been implemented and/or working in 2.80? Thanks.
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is it possible to limit texture resolution by distance?

I know in the simplify tab you can set a reduced texture size for all of the scene, but is it possible to reduce the texture size in vram based on distance from the camera? For example I have a 2km ...
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73 views

Is there a way to make objects take up less memory?

me and my friend are competing in a game making competition, (a competition where you compete with other people to make games), and in this competition the smaller the game size, the better you are ...
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105 views

Passing data from one running instance of script to the next

I am looking for the most efficient way to save data from one run of a python script to the next. My script generates a list , say presentList . The list is made up of a number of integers. Next time ...
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bpy.ops.object.scale_clear(clear_delta=false) (the alt-s command in 3d view) lowers ram usage?

One of my projects has a script that creates thousands of objects every time it runs and even though it deleted the old objects there's still a ram build-up over time. For example, just now it hit ...
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62 views

How can I stop my Blender script from eating my entire computer's memory?

I'm working on a project that loads a bunch of 3D models (around 100 models) into a scene, exports a render, then deletes all the models and loads in 100 fresh models into a new scene, then dumps them,...
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223 views

Garbage collection in Blender leaks memory

I'm working on an iterative process for optimizing the placement of some objects. This iterative process seems to leak the memory (I use numpy matrices). I do destruct the lists and matrices after ...
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1answer
156 views

Project management

So I did some research about project management, and found that people have recommended various ways to arrange stuff and I'm trying to establish the best practice for myself for the whole process. ...
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2k views

How do I delete unused data? [duplicate]

I want to quickly minimize the size of a Blender file. How do I delete any data that is not being used?
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1k views

When Blender crashes during rendering

After asking a good number of questions, I felt it best that I come with some tips that I have discovered and learnt on my own. One of the things I've heard is that there are people that have tried to ...
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393 views

Why does Blender use so much RAM for a mesh?

I'm noticing when loading a 250mb OBJ file (high resolution mesh), Blender goes from 89mb RAM to around 2.1gb. Loading the same mesh in Preview.app uses around 300mb. Why is that? Is there a way to ...
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364 views

Blender very laggy

So I have an MSI GeForce Gtx 1080Ti 11Gb and an Intel i7 7820X but when I open up a scene in blender and try to pan around in solid mode and when I try to preview the animation it only plays at 1 fps ...
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90 views

eighth of a sphere with extremely high face count

I want to create an eighth of a sphere with extremely high face count I want about ~127 Million Faces. the problem is that it takes a huge amount of memory, and creating an entire UV sphere and ...
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Making Objects in the file or appending/linking them? [duplicate]

I've been learning about the append and linking function to bring in objects from other Blend files to the current one being worked on, but something keeps nagging at the back of my mind: Aside from ...
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177 views

Same scene 1 GPU = OK, 2 GPUs = Out of memory?

Strange, strange problem this one. Intro: I had cycles with these 2 GPU + CPU working well for renders. Then, after some time, I took the 750ti out and continued working with only the 1070ti + CPU ...
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331 views

Blender crashes when enabling “true” displacement

I created an OSL shader (a 4D noise texture) and connected it to the "Displacement" output of my shader. I wanted this to be a animated micropolygon / adaptive subdivision displacement, so I enabled "...
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120 views

Blender Out Of Memory and Crashing

I'm trying to create a mountain scene in Blender and when i started adding some bump mapping blender started absolutely eating up RAM (quickly shooting up to the 8GB I have) and then running out of ...
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1answer
229 views

Blender Crashing within two minutes of opening even if left untouched after opening [closed]

I'm brand new to blender. I downloaded the newest version from online (2.79.2), checked to make sure I have good requirements for using the program (which I do), I start up the program and literally ...
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2k views

How to prevent memory leakage in Blender?

I have to load lots of objects/meshes(50k) in Blender and render them for which I have written a Python script. My meshes have lots of vertices/faces (in the range of ~[10k, 70k]). I noticed that ...
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231 views

Blender eats up all memory and crashes upon simple small texture

So this one is really infuriating me as I cannot figure it out. I've created a terrain with textures and a skybox in layer 1 just fine and all looks well. It's also very responsive and works great, ...
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System priorities for a good value set-up

Hi This is my first post as a newbie on this forum, so forgive me if I get any of the rules wrong. I'm a film maker who's just packed in the day job with ambitions to make a micro-budget feature film ...
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Issues at both little and large scales, not understanding the render

I have serious trouble understanding this: 1.- When i work on my project, im building a house into a mountain but "walk mode" seems to tell me that my project is very little, as I cannot walk into ...
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929 views

Finding out what makes your file size big?

Is there a way to see exactly which objects/textures/etc in my scene take up the most memory? My scenes often get rather big, bigger than I feel they should be, and rendering them obviously then tends ...
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2answers
278 views

Cycles/ CUDA out of memory (sometimes)

like many other posts, I am getting CUDA error: out of memory when I am rendering out many images for an animation. But- when I close Blender, and restart the rendering process from the stopped image,...
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939 views

Why is blender not using all of my ram?

So I'm rendering this scene with blender cycles and I'm wondering why I get this when my computer has much more processing power. Here's the computer I have: http://www.costco.com/.product.1128978....
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Full render in one tile - solution for lack of memory?

I created super complicated scene using 8gb out of 6gb of vram. On the way of trying to reduce memory usage I saw many times my gpu rendering only one tile, with all samples, and skipping rest of the ...