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)
457
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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 ...
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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 ...
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13
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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....
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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 ...
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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 ...
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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).
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105
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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'...
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169
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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 ...
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63
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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 ...
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71
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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 ...
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104
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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/...
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315
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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....
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212
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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 ...
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44
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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 ...
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21
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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 ...
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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 ...
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30
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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 ...
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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 ...
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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 ...
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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 ...
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40
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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. ...
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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-...
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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 ...
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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 ...
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Is my laptop powerful enough to run Blender?
I have a Yoga 370 3rd gen and Im having low framerate opening a simple model.
System info from blender:
= Blender 3.4.1 System Information =
Blender:
version: 3.4.1, branch: blender-v3.4-release, ...
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2
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69
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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 ...
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17
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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 ...
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13
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More performant way of creating x amount of objects (100's)
I'm working on taking keyframe data such as
...
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14
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I have opened blender and i couldn't select objects ,insted on the bottom left it's showing "convert to"
So i was a beginner i was using blender for a couple of days and today i opend blender i clicked on one object at first and couldn't select any other object even I'm not in edit mode and whenever i ...
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37
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Lowering volume voxel resolution in viewport
I baked a simulation with 256 Resolution Divisions. It looks great, but my viewport performance is absolutely abysmal. I tried using simplify to lower the resolution but it doesn't seem to be taking ...
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22
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Can not save CPU without deleting objects completely
I am animating some characters and my framerate is tanking. I have been troubleshooting a lot and have found that even when a collection containing a character's meshes and rig is completely disabled ...
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63
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Poor performance while playing back alembic
I've been using Houdini and Blender for a while now, typically exporting animations as alembic and rendering in cycles, and have noticed very poor performance when playing back anything that starts to ...
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278
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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 ...
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106
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Blender takes up all my disk
I'm working on a large project and blender constantly freezes. I looked up to my task manager and it seems every time it freezes It takes %100 of the disk space. What can I do?
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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 ...
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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 ...
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123
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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 ...
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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 ...
user92201
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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, ...
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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 ...
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420
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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 ...
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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 ...
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425
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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 ...
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742
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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 ...
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320
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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&...
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462
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Blender crashes when exporting large amounts of high poly models and 4K textures as GLTF. What is causing Blender to crash?
Setup:
So I have a script running that exports thousands of models from Blender to a .gltf file(s). These models are big, about 200MB each, and the goal is to export about 6,000 of them. What my ...
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331
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Keep Blender open after running script from command line for higher rendering throughput
I am using Blender for on-the-fly data generation for a machine learning task. The data creation process should be fast, and is conditioned on some parameter values given by my model, e.g., an RGB ...
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How do I know which objects cause the performance slowing?
Something like Task Manager on Windows but inside the Blender scene.
I want to optimize scenes that are super slow, but dont know where to start. I don`t even have high poly objects or too much ...
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How to display calculation time above nodes?
I was watching a video tutorial in which the author has his Geometry Nodes looking like this (screenshot):
Notice the 0.17ms and ...
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262
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Where can I get performance cost for each node in each mode for Blender?
I've thought it would be extremely helpful for the procedural materials optimization to know the exact performance cost of each node in the Shader Editor, if not in the absolute values than at least ...
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