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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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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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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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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How to increase FPS? (UPBGE)
I'm nearing the completion of my game, but I've noticed that average FPS on my gaming PC is 30FPS, which makes me think that on regular PCs it will be unplayable.
1)Any general ideas on how to ...
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How to debug low FPS with empty viewport?
I'm working on a big scene. From one point I noticed a drastic change in the viewport performance. To find out what was draining FPS I tried to exclude every collection from the layer and all the ...
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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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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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Super Laggy when moving vertices, in edit mode, where it shouldn't be laggy
I'm a new modeler here, and its been pretty smooth, until now. I have been working a Dodge Challenger for the past couple of weeks, with almost no speed bumps or anything. With subsurf, The total ...
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Is there a way to determine why Blender is running so slow?
I have a pretty large project (about 1GB, 4 scenes) and recently Blender has become too slow too use. A couple of annoying things, other than just lagging are:
I can not scale or move objects with ...
CommunityBot
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Does mesh size affect performance/should I make my object life-size scale?
All of the things I've googled regarding this issue deal with what to do when your mesh is at real life scale but is really small.
I want to make a giant creature and put it in an environment that ...
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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 ...
CommunityBot
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Slow sculpting on high density meshes
iv'e seen people sculpt meshes around 5 mil verts with no lag whatsoever, but everytime i come close to like 1m and above the lag starts to be noticeable and soon any sculpting becomes unusable.
Im ...
CommunityBot
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Edit mode 2.91 very slow and cpu intensive compared to 2.79
It took me a while to move over to the new Blender version. Got my hotkeys changed and activated my favorite plugins. What I noticed is with relatively low poly objects (100k) the edit mode is ...
CommunityBot
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Experiencing Lag With Blender
Issue
I've experienced lag when viewing in the viewport window, selecting objects', and moving selected objects'.
Attempted Solutions:
Adding more computer RAM (previously 8gb, now 64gb)
...
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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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Why is my viewport frame rate so slow?
My pc has a
CPU- Ryzen 9 3950X
GPU- Quadro RTX 5000
RAM- 124 GB of G.skill Trident
Motherboard- Giggabite Aorus x57
SSD- Samsung 970 Nvme M.2 1TB
in it. But, when I use the "Grassgwald" add-...
CommunityBot
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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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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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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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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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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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What to choose GPU or CPU , and should I use opencl, Linux (openSUSE)?
AMD ryzen 5 2600 6 cores
RX570 vid card.
16 gig ram.
I have done allot of research, but can't find what ideally would be the best setting for my system.
At the moment Blender says my vid card does not ...
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70
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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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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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Faster blur effect in Blender VSE
Blender's Video Sequence Editor allows you to use the Gaussian Blur effects strip to blur the image or video, however, it uses a lot of CPU and the rendering is slow like a hell. It takes around 2 ...
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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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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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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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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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Geometry nodes vs particle system [closed]
I just want to know the benefits of using geometry nodes over particle systems, such as whether I will be able to generate more particles with less memory usage in geometry nodes.
Why are geometry ...
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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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2k
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Is it dangerous leaving PC Rendering overnight? [closed]
Not actually a blender issue, I’m rendering in Cycles using Blender and the animation is quite long, I started rendering 13 hours ago and it’s not even at half animation. So, since it’s a job that I ...
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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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Performance: Eevee vs Blender Internal
In my application I use Blender's Internal rendering engine (headless mode) to render quick mock-ups of various items. BI yields plenty quality, however speed is essential (it's a web app) and I wish ...
CommunityBot
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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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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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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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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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1
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740
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How to troubleshoot Blender 2.83 crashing [closed]
I’ve just added a GPU to my system in the last few days that has allowed me to upgrade from 2.79 to 2.83 YAY!!!
A few times while rendering though I return to my computer to finder Blender has shut ...
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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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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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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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4k
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How to prevent Blender from crashing when running out of memory?
I'm waiting for like 5 minutes for a render to start, nothing happens (Blender 2.90.1) and Blender is crashing in the end. I already tried to render the project using Blender 2.83.8 but I'm getting ...
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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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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 ...
