Questions tagged [performance]

Questions pertaining to software performance or computational speed of Blender should use this tag. (Do not ask hardware specific questions. They are considered off-topic)

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Performance loss with animation in Blender

when I play the same animation using Blender and C4D I get an absurd difference in performance in each software. In Blender it's running at 4~5 FPS with Simplify and Frame Dropping active, while in ...
Gustavo's user avatar
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Is it possible to limit the number of GPU cores in new MacBooks M series?

I am using blender 4.1 with a MacBook M3. I am rendering using the CLI and while rendering some scenes I would like to keep using the computer to do some other stuff, so I was wondering if there is ...
Iván's user avatar
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frequent crashes and freezes on Linux [closed]

My problem I recently removed gdm3 from my system to switch to KDE Plasma. Since then, the normal blender starter shortcut doesn't work any more; the program appears in the taskbar and, without ...
TheLinus's user avatar
2 votes
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34 views

Does Blender python run slower when strictly typing?

I have a code snippet without strict data-typing: ...
Megan Love's user avatar
1 vote
1 answer
24 views

Blender very slow to start up - some network problem [duplicate]

I'm trying to figure out why Blender is so slow to start on my Windows machine. I'm using version 4.0.1, but it was similar with previous versions too. The problem seems to be somehow network-...
mik01aj's user avatar
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More Viewport windows = slower switching back from Full Screen?

I finally upgraded from 3.6 to 4.0 and immediately noticed a huge impact to my workflow speed when switching back-and-forth between a 4-pane viewport setup and Full Screen. I'm seeing about 3 seconds ...
Remesh_it_all's user avatar
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Play Animation Too Slow when parenting (Keep Transform)

I have created a simple mess with a simple UV sphere and have used the arrays and curve modifiers around a bezier circle to surround the UV sphere with spikes. the spikes are simple circles extruded. ...
HiAll's user avatar
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Startup always crashing and very slow

I just updated to Blender 4.02 and am having crazy lag and crashes. Was hoping the update would fix the issue.. I'm using a Nvidea 4080 and 32gb RAM but for some reason I'm experiencing a lot of lag. ...
Caleb Bell's user avatar
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Blender freezes when adjusting editing materials and value slider

Been having this issue for a long time and can't seem to find the answers. While in Render View any material value slider adding nodes/removing etc blender will freeze and viewport goes grey while it ...
Paul's user avatar
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Joining objects without loosing texture paint and material

I'm experiencing terrible performance with Blender 4.0.2 and Macbook Pro M1 16GB Ram, 1 TB SSD with 200GB of free space. Last week Blender was amazing now it crashes everytime I press Undo or even ...
lostthylacines's user avatar
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How to render a lot of hairs easily

I try to make a rug generator with geometry nodes. I already have a functional generator for the shape of the rug but I struggle to render a large amount of hairs. I might need to make large rugs (...
leevmealone's user avatar
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Compiling Shader.... taking too much time. "Hacks" to speed it up?

This is my node tree. I'm still working on it and, as in right now, for every node change I have to wait more than 40 seconds for the shader to recompile and it's unmotivating and extremely time ...
Pedro Ribeiro's user avatar
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167 views

GPU Subdivision vs CPU Subdivision on M3 Max

I recently got my hands on a laptop with a GPU, and was playing around with it when I noticed there's a "GPU Subdivision" option in the preferences. I'm assuming that enabling this offloads ...
GordonM's user avatar
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all of my windows such as dope sheet, graph editor and such are completely black however the 3d viewport is completely fine

blender update 4.0 on both browser version and steam version
noah's user avatar
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1 answer
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Coloring lots of cubes

I'm generating lot's of cubes this was (code from the solution to one of my previous question: Low level fast way to create cube). I want to add different materials with colors to the cubes, so I've ...
BroDude's user avatar
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Low level fast way to create cube

In the answer to this question it's said that the high level ops functions have low performance since they do a scene update: Python performance with Blender operators I'm looking for a low level ...
BroDude's user avatar
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My GPU doesn't support any of the 4 options in GPU settings [duplicate]

I am so tired of only using the CPU for my renders because It's a bit slow and also makes me worry pretty much in the process about my CPU surviving it. I checked how I can force Blender to use my GPU....
Buranneg's user avatar
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Why are linked objects from another file laggy, and same objects are fast when appended?

I have a laggy file that will take up to 12 seconds to select a basic object and take up to 14gb of memory, to fix this I open a new blend file and append all the objects and now there is no delay and ...
Mel Meanley's user avatar
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Having a lot of copies of the same rigged character each posed differently. How to improve performance?

I am trying to make a scene which uses the same rigged character about 40 times but posed differently each time. It gets resource intensive and I was wondering if there is a way to optimize this since ...
cantemir's user avatar
1 vote
1 answer
60 views

I don't have the timings option in the node editor [duplicate]

Pretty much what I said in the title, even though I have blender 3.6.1, the timings option does not show up in the top right menu of the node editor (shading).
strumf007's user avatar
1 vote
1 answer
369 views

Bad Viewport Performance on Good Machine

My blender keep stucking on "not responding" every few clicks and runs a simple animation at only 7 fps, even though Im in solid mode. I have a fairly good PC but Blender isn't using all it'...
Luis Simioni's user avatar
6 votes
1 answer
222 views

Geonodes: which is faster, Set Position or Transform node?

Not sure if BSE is a good place for such benchmarks, feel free to let me know with downvotes (question downvotes are free). Since many operations can be done by both, which of the two should be ...
Markus von Broady's user avatar
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OCIO Profile Error

I am having a problem with OCIO profile. In version 3.5.1 I installed AGx OCIO but then I uninstalled it because it didn't have a good integration with the addons. After uninstalling and deleting ...
Eyus Vila's user avatar
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1 answer
124 views

Blender Mesh has duplicated materials

I have a huge problem. I’m a game developer and currently trying to create a level with Lego buildings. So I export them as zmbx from mecabricks and import them to blender, combine the meshes (joined ...
ThrallWoW's user avatar
2 votes
0 answers
249 views

How does instancing improve render times with Cycles?

I can understand why instancing reduces the amount of memory used since you don't duplicate the polygons of your scene, you simply reference them from multiple locations in the scene. From a technical/...
Tom Clabault's user avatar
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1 answer
515 views

What's the difference in using displacement map vs real geometry?

For example, I've created a terrain from a subdivided plane. After baking it's geometry to a heightmap and applying that heightmap to a new plane, both planes would contain the same amount of polygons....
dovaogedot's user avatar
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1 answer
360 views

After sleep mode or hibernation blender crashes

When working on projects, I don't close the necessary programs and folders when i want have a rest so that after the rest I can get to work faster. I use hibernation when I go to sleep, and sleep mode ...
AngryTrall's user avatar
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0 answers
67 views

Viewport performance with new GPU

Recently got new GPU (rtx 4080 instead of rtx 2060 super) But viewport performance doesn't improved at all. I want to ask is there some bottle neck or some blender settings to change? My specs (amd ...
Stranger's user avatar
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27 views

Crashing my Laptop While Rendering a Single Frame

I created a NPR Scene not so Heavy. This scene work fine in Viewport(EEVEE) and gives me fine performance in viewport but whenever I hit F12 to render it, My whole Laptop Crashes. I tried rendering ...
Virendra Kumar's user avatar
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0 answers
20 views

Cinematic renders / scattering / foliage

I'm looking for advice on how i can use some high quality assets and scatter them fairly densely in a scene, I feel as if I've seen certain workflows in max and other industry software where as you ...
Damon Binstead's user avatar
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37 views

Terrible performance during animation playback

I'm struggling to understand why is performance so bad when I'm editing rig controls or whenever I start the animation playback. My scene is a mannequin character exported from the Unreal Engine 5. I ...
zbugba's user avatar
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How do I replicate this series of numbers in my practice project

so I followed this tutorial to make a digital clock and I hit a snag around time 4:07 when I wanted to replicate the numbers displayed in this first screenshot. I tried to use the 'join strings' node ...
Brownielopped's user avatar
1 vote
0 answers
68 views

Does Blender compute all previous modifiers to a Geometry Nodes each time a value is changed in the GN?

Does Blender compute all previous modifiers to a Geometry Nodes each time a value is changed in the GN? -I mean, for example, if I have a big mesh and I want to reduce its vertices with a decimate ...
Miguel's user avatar
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57 views

I have low playback frames, even though i have good specs

i am creating this tutorial by Ducky 3D https://www.youtube.com/watch?v=reUQmtqptwk&t=539s&ab_channel=Ducky3D i have a gaming laptop with the following specs:- an RTX 3070 8gb VRAM 32 GB RAM a ...
Abdel Razzaq Abusalha's user avatar
1 vote
0 answers
18 views

What are some general tips/pieces of advice for speeding up navigation in the 3D Viewport?

I was handed a massive file recently where the 3D viewport struggles to keep up with my mouse commands (panning, zooming, selecting, etc.), even though my machine should have excellent performance on-...
NickJ_001's user avatar
1 vote
0 answers
153 views

How to improve performance when rendering freestyle lines only?

I have a moderately complex scene that I wish to render in a "line only" style like blueprints. I've enabled freestyle rendering and stuck with the Workbench render engine given that I don't ...
John's user avatar
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1 vote
0 answers
140 views

Is there a way to make blender start rendering the next frame before it is finished the current so the GPU usage is constant?

As you can see from this screenshot GPU usage goes up and down as the current frame is finished rendering and the next frame is prepared. Because the GPU is not needed while the frame is prepared the ...
Robert's user avatar
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2 answers
97 views

RAM usage above 3gb with a single character animation. Less than 10fps

Just see for yourself: https://www.youtube.com/watch?v=TRonAc9TJv4 Im using most recent blender version(Ive tried with older versions too). With or without addons, this problem occurs. Im using a ...
user3658801's user avatar
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0 answers
18 views

Delayed reads/writes from external drive from blender 3.4.1

Computer Specs New M2-8core gpu, MB Air, Ventura 13.2, 16gb ram,256gb ssd. New external LaCie, self-powered D2 Pro 4tb drive. Rated and verified at 256mbs transfer rates. This is directly connected ...
Steven Levine's user avatar
0 votes
1 answer
385 views

Performance issues with high polygon count and memory leak

Good day, I am working on a Model with a high polygon count, 27,066,816 to be exact. Therefore I am having long loading times when switching between object, edit and sculpting mode. My goal is to ...
Robin's user avatar
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0 votes
1 answer
129 views

My old Blender is dead [closed]

I'm currently on Blender version 2.83, and I don't know why, without any sign of problem, I Can't start it, it crashes instantly. I looked at the different solutions, everything is up to date, i ...
ArkadeN's user avatar
  • 29
0 votes
1 answer
2k views

Why does blender lags when I try to move objects?

I'm using blender version 3.3.1 and when I try to move objects by using the G key on the keyboard, it lags. It goes like "not responding". Also the framerate of the viewport playback is too ...
Yashar Mahmoodi's user avatar
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0 answers
137 views

blender running slow when deforming mesh with normal map

I have a pretty powerful pc that should run this perfectly but I'm getting a lot of lag when doing this. when I deform anything that has a normal map, it doesn't want to handle it very well and it ...
desperrrr's user avatar
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4 votes
1 answer
6k views

What computer should I buy for Blender? How do I choose hardware? [closed]

I’m using a Mac Book Pro but from what I understand Blender doesn’t work well with any Apple computers? I’m looking at PC options to use specifically with Blender. How do I choose a computer to use ...
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460 views

Viewport and render very sluggish but PC is powerful. How can I reduce render time and increase viewport performance?

I have a pre-built NZXT with i-7 12700k CPU and RTX 3070 GPU with 32 GB of RAM. There are a lot of instance objects, cloth simulation with self-collision enabled, a rigid body, and collision object, ...
Bananasmacked's user avatar
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22 views

Framerate plummets when moving or editing objects

Blender community, I am suddenly encountering a serious problem when using Blender. When I am simply looking around the scene, Blender runs just fine, at around 60fps. However, when I am either ...
Zachary Lund's user avatar
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0 answers
471 views

Blender Freezing computer Since updating to 3.3

I've updated my blender from 3.2 to 3.3, I have finally been able to sculpt a head I can be proud of and wanted to give it hair with the new system. At first, it opened fine, But coming back a few ...
jazzhar's user avatar
1 vote
0 answers
120 views

Does noise texture node parameters affect on performance?

I've connected noise texture node in my material and when I'm changing scale parameter, I hear that my graphic card starts work louder. So I suppose it's need more cooling - doing more operations. Am ...
Сергей's user avatar
1 vote
0 answers
600 views

How to interpret benchmark results?

I'm running the blender benchmarks from the open data project (https://opendata.blender.org/) and I'm confused about the results. It ran three tests and reported the results of each, and while the sum ...
cat40's user avatar
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1 answer
984 views

Real Snow addon crashing blender

im trying to apply snow to an object in my scene and every single time it crashes. i have a pretty good pc and i know for a fact that specs arent the problem because it worked just find in a fresh ...
desperrrr's user avatar
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