Skip to main content
10 votes
Accepted

How do I see what is using Memory?

Open a Command Prompt window and navigate to the Blender application folder (e.g. CD "C:\Program Files\Blender Foundation\Blender") Start Blender with the command ...
Xtremity's user avatar
  • 2,435
9 votes

Why does Denoising take up so much memory?

Like Cegaton said, it uses the other tiles in the memory. Using that logic, I ran a test, and found that if you reduce the tile size (in the performance pulldown) the image renders using much less. My ...
01Beaker's user avatar
  • 143
8 votes
Accepted

How to prevent memory leakage in Blender?

There is an easy way to get rid of memory leakage issue by resetting everything to factory setting by the following: ...
Amir's user avatar
  • 3,062
8 votes

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

Select all your leaves (if they have the same material, press ShiftL (Select Linked) > Material), select one last to make it active, press CtrlL (Make Links) > Object Data, now all the leaves ...
moonboots's user avatar
  • 162k
7 votes
Accepted

Do duplicates of the "Group input" on Geometry Nodes waste memory?

As far as I know, it makes no difference at all. It behaves like in a program where you access global variables. No matter how many times you do that, the values always stay in memory once, no matter ...
quellenform's user avatar
  • 36.7k
6 votes

How do I delete unused data?

If you're talking about materials or textures: In the Node Editor, all the materials that have a "0 something" name are materials that have no user, it means that they are not used by any ...
moonboots's user avatar
  • 162k
6 votes

Do duplicates of the "Group input" on Geometry Nodes waste memory?

For each additional Group Input node a very small amount of memory is used in the node editor -- to remember the position of the "Group Input"'s node displayed in the editor and which of the ...
Marty Fouts's user avatar
  • 33.3k
5 votes
Accepted

Blender using memory for no reason; Blender loading up Memory Usage. Why is that?

Basically the problem you're facing is that blender is storing a large amount of memory for the undo steps. You can change this by going to File -> user preferences, under the Editing tab you'll find ...
Delagone's user avatar
  • 2,098
5 votes

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 ...
Edward's user avatar
  • 342
5 votes
Accepted

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

I've written this script that helped me a lot with my last project. As a new blender user it's too easy for me to bloat my projects w/o knowing where the bloat is. This inspector lists out my project ...
Jon's user avatar
  • 524
4 votes
Accepted

eighth of a sphere with extremely high face count

Well this all sounds highly suspicious and unnecessary, but if you must. Start with a Bezier Circle object. After adding it enter edit mode and change all handle types to either Free or Aligned. ...
Duarte Farrajota Ramos's user avatar
4 votes
Accepted

Why is blender not using all of my ram?

Simply because it doesn't need to use more. My guess is that you assume that the rendering would be faster if used more memory. Sadly, it's untrue. And due to various bottleneck like memory latency, ...
ker2x's user avatar
  • 423
4 votes
Accepted

How to remove unwanted textures to save memory

Do not worry about all the images in your blend file. If they are not used in the render they will not effect the memory. Simply change the images out for the smaller ones and try to render again (...
David's user avatar
  • 49.5k
4 votes
Accepted

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

The short answer is that it would be too complicated to calculate an exact amount of RAM that a FLIP Fluids addon simulation will use. The memory needed to be allocated is dynamic and depends on many ...
RLGUY's user avatar
  • 536
4 votes
Accepted

"System is out of GPU memory" On New Well-Capable Computer

Render using CUDA instead of OptiX for this scene. The scene fits into main memory but not VRAM. Blender has the ability to use a shared memory pool and essentially do memory swaps to render heavy ...
Allen Simpson's user avatar
3 votes

hello world script causes memory leak

This does not cause any memory leak. It simply adds entries into your Undo list, and depending on how many undo steps you have setup in preferences the Mem reading will cap out eventually and will not ...
Jaroslav Jerryno Novotny's user avatar
3 votes

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

The way I see it the issue is twofold. Instancing Separate objects benefit from instancing optimizations. If objects share the same object data (geometry) Blender only stores such geometry once, and ...
Duarte Farrajota Ramos's user avatar
3 votes

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

The info is mainly explicit defined and call from operator : ...
HikariTW's user avatar
  • 7,871
3 votes
Accepted

Keeping Shaders in Memory

I discovered an answer to this: Preferences/System/Memory & Limits/Texture Time Out I had this set as default to 120 (seconds I am presuming). It is possible to set it to 0 so that they are kept ...
DrIgnatiusCole's user avatar
3 votes

"System is out of GPU memory" On New Well-Capable Computer

One of the things I've discovered is how to trick Blender into letting you render. The system needs to "build" the scene and get all the information before it even starts to produce the ...
Josiah Valentine's user avatar
2 votes

How can I tell if Blender is using all 64 GB of RAM?

Its way too old, but may be use full for somebody else; You may try to set the memory limits in blender settings as follows; File -> User Preferences -> Editing and set the memory limit to 0, Zero ...
Blender For You's user avatar
2 votes
Accepted

Blender 2.78 cycles out of memory problem, in both cpu and gpu

If you sculpted, there's a high chance your face count is extremely high, and 8GB is not really that much ram. You can try to decimate the mesh (decimate modifier) and see if it will stop crashing and ...
Cherna's user avatar
  • 66
2 votes

Render a "long" video (> 2 mins) in one step, without running out of memory

The short answer is: I was using an old version of Blender with a memory leak (thanks @3pointedit for pointing me in the right direction!). I just installed 2.78c, and this version does not have the ...
jastram's user avatar
  • 253
2 votes
Accepted

Blender crashes when enabling "true" displacement

This doesn't explain the crash but does offer a way to work around the issue. I noticed that your OSL script is generating a Color to pass into the Displacement. The Displacement is a Scalar value (...
Rich Sedman's user avatar
  • 44.9k
2 votes
Accepted

Segfault when going back to Object Mode, on unrelated data

Use a copy centers = [p.center.copy() for p in obj.data.polygons] Similarly for obj.location ...
batFINGER's user avatar
  • 84.5k
2 votes
Accepted

Project management

This is my personal preference and you will find this with every answer as each person does it differently dependent on computer power and their work method. Please keep this in mind :D I would go ...
Bigfoot Blondy's user avatar
2 votes

Can Blender use Virtual Memory?

All software uses virtual memory automatically. Operating systems usually take care of that. When you run out of RAM your storage devices are used. That is called paging. Storage drives are extremely ...
Martynas Žiemys's user avatar
2 votes
Accepted

Blender uses more ram than my pc has when rendering

Blender will use as much RAM as it needs to render the scene, until your system cannot provide those resources any more. Usually, when the program needs more ram than installed on the hardware, the ...
susu's user avatar
  • 14.1k

Only top scored, non community-wiki answers of a minimum length are eligible