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)
462
questions
2
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0
answers
34
views
Does Blender python run slower when strictly typing?
I have a code snippet without strict data-typing:
...
1
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1
answer
15
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-...
0
votes
0
answers
22
views
Low frame rate in viewport even in an empty scene
I have a 144 hz monitor, and few days ago I noticed that Blender started to run noticeably slower than what I was used to, even when I wasn't doing anything unusual.
I recently upgraded my computer, ...
0
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0
answers
12
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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 ...
0
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0
answers
16
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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.
...
0
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0
answers
24
views
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. ...
0
votes
1
answer
31
views
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 ...
0
votes
0
answers
28
views
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 ...
0
votes
0
answers
65
views
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 (...
1
vote
1
answer
101
views
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 ...
0
votes
0
answers
142
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 ...
0
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0
answers
22
views
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
0
votes
1
answer
52
views
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 ...
1
vote
2
answers
107
views
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 ...
0
votes
0
answers
13
views
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....
0
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0
answers
46
views
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 ...
0
votes
0
answers
22
views
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 ...
1
vote
1
answer
54
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).
1
vote
1
answer
303
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'...
6
votes
1
answer
218
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 ...
0
votes
0
answers
97
views
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 ...
0
votes
1
answer
112
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 ...
2
votes
0
answers
211
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/...
0
votes
1
answer
474
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....
0
votes
1
answer
337
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 ...
0
votes
0
answers
61
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 ...
0
votes
0
answers
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 ...
0
votes
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 ...
0
votes
0
answers
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 ...
1
vote
1
answer
33
views
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 ...
1
vote
0
answers
63
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 ...
0
votes
0
answers
55
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 ...
0
votes
0
answers
50
views
Does appending from an HDD(instead of a SSD) drive affects performance?
Does appending objects from an HDD(instead of a SSD) drive affect rendering time and viewport performance?
I'm having performance problems when appending some grass from a file saved in a HDD drive. ...
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-...
1
vote
0
answers
145
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 ...
1
vote
0
answers
130
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 ...
0
votes
2
answers
96
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 ...
0
votes
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 ...
0
votes
1
answer
363
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 ...
0
votes
1
answer
128
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 ...
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 ...
0
votes
0
answers
136
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 ...
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 ...
0
votes
0
answers
437
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, ...
0
votes
0
answers
20
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 ...
0
votes
0
answers
467
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 ...
1
vote
0
answers
118
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 ...
1
vote
0
answers
565
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 ...
0
votes
1
answer
963
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 ...
0
votes
0
answers
346
views
Why is material preview is freezing?
I've tried to make stone material following that tutorial. But after the middle part of the video, the blender starts to slow down in material preview mode. I know that some nodes are very "heavy&...