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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18 views
Blender VSE slow regarding PC Capabilities [duplicate]
I am quite a newbie at Blender (v2.79b) and I noticed something disturbing while generating videos.
I have 8C/16T, all the raw materials are on SSD and I can only see 1 core working on my machine with ...
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1answer
33 views
Animation Nodes slow performance
I've just started playing with the add-on and created some simple tree to generate tiles but the it works very slow. Currently I have weak machine and the procedure may not be super optima but even ...
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0answers
16 views
Blender 2.80 crashing when I try to open it?
I have installed blender 2.79 before but when I try download Blender 2.80, unzip and try to open it it's just closes like crash without say anything or any error.
When I tried to uninstall the last ...
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0answers
12 views
Grease pencil in Blender 2.8 Eraser freezing
In my last works I encounter troubles with rubber/eraser, it is working like
games on low fps.
My current project has 168k points and 1,3k strokes, I remember I had bigger
paintings, and everything ...
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1answer
25 views
Can Cycles take more samples at object borders?
Can Cycles be coaxed to cast more rays in pixels containing a large gradient/discontinuity in depth (or high contrast in brightness)?
My scene is fairly simple (effectively an image mapped to a ...
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1answer
100 views
Very bad performance on Cycles OpenCL using Ubuntu 18.04 and Radeon VII
We've got a new render machine for our Company. Threadripper 1950x + dual Radeon VII + 64 gb of ddr4-3200 RAM. (Only one Radeon installed now for testing)
Our CPU testing went flawless. With great ...
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0answers
17 views
Is Static / Dynamic BVH still present in recent builds of 2.79?
There still is Static / Dynamic BVH dropdown in official 2.79 build:
That dropdown to choose between them isn't present in recent builds of 2.79 or 2.8 anymore.
Viewport resolution only seems to be ...
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1answer
26 views
What's the most lightweight format for textures?
I want to know what's the best image format to use on textures that consumes the least ammount of VRAM during render.
I'm trying to render a scene in Blender 2.8 EEVEE but because of the textures, ...
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0answers
13 views
Viewport animation just tanked to 3FPS out of nowhere
I was trying to create an animation and moving some bones around when out of nowhere my formerly 60fps viewport just tanked to 3fps. I'm not doing anything too demanding either, just making a low poly ...
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2answers
64 views
My blender is so laggy that its unusable, any suggestions
So, two days ago I shut down my computer for a few hours. When I turned it back on and opened Blender, it was extremely slow and still is. (I've tested Unreal Engine and it runs smoothly). All the ...
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2answers
32 views
performance issue creating many objects
I am trying to use blender (2.79b) for batch visualization of data on Windows 10. Unfortunately, blender gets very slow after creating a certain amount of objects. I tried to improve things by "...
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1answer
35 views
Critical Problem : Freeze Problem while Modeling in Blender 2.80 Beta [closed]
I'm trying to model something with Blender. But when I switch it to Edit Mode with Tab and, for example, using Ctrl + R to add a new loop, Blender starts responding about 3-4 seconds after my mouse ...
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1answer
25 views
Is there a way to limit the number of CPU Cores used for physics baking?
Is there a way (in Blender) to limit the number of CPU Cores used for physics baking, like you can with rendering?
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1answer
24 views
I have view port quality issue (Sorry if this has been asked before I couldn't find an answer)
The image shows my problem it has Choppy edges in the viewport. I looked all over google and this forum but could not find a solution. I have an RTX 2080 and i7 8900k.
I fixed it once by creating a ...
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1answer
48 views
does more processors and cores help performance?
These are my specs
-i3 @3.70 Ghz 2 cores 4 logical processors
-8 Gb Ram
-147 gb C: Drive
-1.81 Tb D: drive
when I use rendered view in blender the sampling is really slow (like 1 sample per ...
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0answers
19 views
Blender Performence Issues
My blender has been lagging very badly lately. I don't know what to do. please help.
my laptop performance details
Intel Core i5-4200U
CPU 2.30 GHz
RAM 8.00 GB
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0answers
32 views
is it possible to limit texture resolution by distance?
I know in the simplify tab you can set a reduced texture size for all of the scene, but is it possible to reduce the texture size in vram based on distance from the camera?
For example I have a 2km ...
2
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1answer
25 views
Does scaling a mesh/curve object to 0 remove its render impact?
I'm currently using the latest build of Blender 2.8 as of this post's timestamp, and I noticed I can't keyframe the viewport visibility parameter (see above) in the Outliner like in 2.79. The render ...
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2answers
179 views
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 ...
0
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1answer
30 views
Blender renders always frame 1 on 2nd computer
I'm using a second computer to CPU cycle render an animation on Windows 10. I have the "common" setup to use the same project file (network drive mapped) on both computers with the same output ...
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0answers
189 views
Why would Blender slow down in editmode with only 2886 vertices?
Blender slows down in edit mode with only 2886 vertices. I am not sure what is wrong with the file. Can someone suggest a solution to this?
My PC specs are:
Processor: Intel(R) corei7 3.50ghz
Ram ...
0
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0answers
524 views
2.8 Slow performance while moving objects in viewport
in 2.8 when I move objects in the viewport it lags quite a lot. The objects are simple meshes subdivided 2 times. Rotating the view is quite smooth on the contrary. Any idea on how to fix this?
Thank ...
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0answers
46 views
Blender Won't Open Back Up After Crash
After Blender crashes I wont be able to open it back up again unless I do a restart on my computer. Instead this message will pop up.
I am using a
Windows 10 Lenovo Laptop,
16 gigs of ram,
i7 7700 ...
1
vote
1answer
73 views
Benchmarks for choosing the right CPU
Is there any reliable benchmark resource (website?) for choosing the right CPU for Blender? I found http://blenchmark.com/cpu-benchmarks, but they seem not reliable. For example, according to them, ...
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1answer
415 views
Help me understand why my cycles render is so slow
This is NOT about asking how to speed up cycles renders. I am just confused to why a scene has taken so long to render.
Here we go:
I have a camera (WOW) looking up into treetops. Pretty simple. ...
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0answers
46 views
Blender file size increses drastically after joning duplicated object and performs very slow
When i join (CtrlJ) duplicated (ShiftD) multiple object or mesh then blender performs very slow and file size increases too from 100mb to 1gb. Does anyone have solutions for this issue?
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1answer
45 views
Blender does not start
Installed Blender on a machine with Core i7 CPU, 16GBs of RAM and an NVIDIA GeForce 650. I managed to run Blender twice. On the third time nothing was shown and Blender didn't load properly, even ...
2
votes
1answer
256 views
Is there a way to make Cycles render slower to use less GPU resources
Is there a way to make rendering in Cycles use less GPU resources? Like some console parameters for rendering engine or settings within Blender? I tried render scene with the console (no UI), ...
0
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1answer
169 views
Leverage multiple CPU cores for video rendering (VSE)
I have a 1950X Threadripper with 16 cores and even if I set the thread count to 16 manually in the performance section, it still only uses 1 core. Have Cycles renderer selected and both user ...
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2answers
233 views
Rendering using both GPU and CPU is not possible
For some reason I'm unable to render on CPU+GPU. I've checked on 2 different computers and it's not available. One setup is Threadripper + GTX 1070, and the other one Intel i9 + GTX 1080.
Is it a ...
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1answer
172 views
Linux Ubuntu 18.04 - Sculpting performance (dyntopo) is terrible in comparison to Windows
OS: Ubuntu 18.04
CPU: i5-6600K
GPU: GTX 970
RAM: 32 GB
Sculpting on objects with more 100k polygons (dyntopo constant detail 50 px) lags blender, especially using Snake Hook brush and dragging ...
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0answers
539 views
Blender 2.79 Cycles OpenCL RX Vega GPU extremely slow. (Ubuntu 18.04)
I am running Ubuntu 18.04 on a fairly powerful PC (Ryzen 2700x and Vega64) I finally managed to get OpenCL to work at all with ROCm-rehl drivers.
When I render the default cube scene CPU rendering ...
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0answers
22 views
Blender General Best Practices (to affect a game's performance as little as possible)
I've started modeling a few weeks ago by doing some anvils/random objects/humanoids and animations. It seems that for some of them I used too many unnecessary vertices (and perhaps modifiers) after ...
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0answers
318 views
Blender does not seem to utilize CPUs and GPUs effectively for rendering
I've just built myself a new machine because rendering times on my laptop were prohibitive. It's an i7900 10 core processor, 32GB RAM and two Quadro P4 graphics cards with 8GB memory each. The cards ...
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1answer
123 views
LOD in particle systems
I've already checked this two questions but neither solve this problem:
Level of Detail of Particles System?
How to access data related to individual particles?
Both posts derive to use animation ...
0
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1answer
49 views
blender running so slow i can take a nap when clicking a menu
I have a big problem. It's been happening for a long time and it's really urgent as this is payed work.
For some reason my project is running so slow I can't even click on the menus. I literally ...
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0answers
18 views
Why is my gaming desktop relatively slow at complex animation playback? [duplicate]
I’ve been working on an animation. Due to the large quantity of animated objects (plus a keyframed cloth simulaion), I noticed that when I played through the animation, it went slow. Really slow - ...
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0answers
77 views
Struggling with making an audience/public for an gladiator arena
I am a blender newbie, slowly catching up with the program and geting into 3D modeling. I've managed to create a huge arena model, and I have a lot of audience seats that should eventually be filled ...
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0answers
81 views
Animation preview is in only 4 fps
So when i start my animation, it is always capped at 3/4 fps, making it impossible to work with.
I tried simplify option(in scene tab), but that doesnt seem to do anything
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1answer
687 views
Blender selection in viewport suddenly slow
Since a few weeks I suffer from the issue where I have to wait up to 6 sec after selecting an object in the viewport. The time depends on the amount of hidden layers (and hence the amount of objects ...
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0answers
102 views
Viewport performance due to high poly count
Is there a way of reducing poly count only in the viewport?
My gtx 1070 is struggling while sculpting terrain (It has 2000x2000 subdivisions)
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0answers
81 views
Blender 2.76b - Slow performance on Viewport Shading Material
I'm running Blender on Ubuntu 18.04 LTS; I use Blender 2.76b. My problem is when I turn the Viewport Shading to Material Mode, it is very very slow. It is even much slower (much!) than the Rendered ...
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0answers
36 views
Performance issues - make tree leaves like this?
Ok, I am trying to achieve animated, particle like leaves (low poly not realistic) like this - https://youtu.be/cKS3VM1a3TU?t=4m8s
Obviously my idea was to make a group with some leaves and make a ...
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2answers
2k views
Poor performance on mac with AMD Radeon Pro 560
My mac is a macbook pro 2017, with AMD Radeon Pro 560.
Seeing this question How to do GPU rendering on MacBook Pro 2016 (AMD Radeon Pro 460) I also get the Cycles render to work, but it renders at ...
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0answers
21 views
Scene ran fine, then updated windows, now playback is VERY slow
So, I was animating a scene, not too complex, and playback was fine, then I found out my windows was outdated so I clicked update and restart, it then took 5 attempts to get back into the computer as ...
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3answers
1k views
Blender is only using one tile and only on CPU
I have tried to make blender faster by using my Nvidia GeForce GPU in the user preferences window and under the render options in the properties window.
But I can see in the task manager that the CPU ...
0
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1answer
563 views
Optimize Blender's user interface for performance
As a simply a Blender hobbyist, I can't justify the an upgrade to improve the performance of my computer. I wondered, "What could I do that I'm not already doing that could make Blender run faster?" ...
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0answers
108 views
Blender not responding when I play animation
This is my animation, just about 285 frames, 78 keyframes
When I play animation, Blender is not responding
And here is Blender status in Task Manager. I think it isn't so strong
What's the problem? ...
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1answer
203 views
Will there be a browser version of Blender? [closed]
I heard about WebAssembly, which lets C/C++ programmers target the web, I was just wondering whether Blender has any plans to make a "web" version, that runs in the browser? At the recent Google I/O, ...
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0answers
51 views
Create floor for a top down 3d game
Dear blender community,
I am a beginner in 3D animation and I am planning to make a 3D top down perspective game.
I want to create the game 3D assets in blender and export it to use in an external ...
