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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Blender Benchmark crashes
I tried to run Blender benchmark because I felt it was a bit slow today working and the GPU was being used intensively in the task manager while sculpting, and I didn't used my new laptop for 3d too ...
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Viewport performance, i9-9900k vs Ryzen 3970x?
(Apologies in advance in case this is the wrong place to ask this!)
I'm building a new workstation and trying to decide which CPU to go with.
Does the viewport performance in Blender benefit from ...
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148
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Issue with Collada export on Mac OS Catalina
did any of you experience a problem with Collada (.dae) export of bigger files? I have a blender project with a number of animations (11 MB in total). I've recently updated Mac OS from 10.14 (Mojave) ...
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Blender on Surface Pro X [closed]
Blender will not work on the Surface Pro X. It runs, but it doesn't recognize the GPU in the machine and shuts itself down. All my drivers and firmware are up to date.
The GPU should be more than ...
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Should I enable both my CPU and GPU in the CUDA preferences? [closed]
I am using blender 2.8 on windows 10. I have a question about System CUDA options. There are two checkboxes one for my graphics card GeForce GTX 2060 and another option for Intel Core i7-4790 CPU @ 3....
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Cycles Smoke render - Extremely poor performance & crashes
I have a decent new build: 3700x + 2x 5700XT, 32gb ram, using 2.81.
I thought smoke rendering for a fairly simple scene would be a breeze (excuse the semi-pun) but for a render of a scene containing ...
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336
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I have better than optimal hardware but Blender keeps crashing
I am trying to get started using blender and follow a simple tutorial to get used to creating abstract renders for design work.
While running blender even performing the simplest of tasks my computer ...
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How to make performance test while render my scenes
I want to do a performance test via scenes that I created.
Could you give me some tips or applications which will check performance in the blender? GPU, CPU, Memory usage?
Or maybe it's possible to ...
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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 ...
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600
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Too much RAM after load scene textures in high resolution [duplicate]
My current project contains many object with 2K and 4K textures. I don't have problem with RAM during render, but only when I open this scene. It take more than 20GB and it take long time to display. ...
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Does Blender bloat unnecessarily the Windows Registry?
According to Revo Uninstaller, Blender adds more than 4400 registry keys to the Windows Registry. They are almost all spread in Registry folder:
...
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low framerate and crashes in the viewport by using not even up to 30% GPU and CPU
Hello im new in blender and wana ask is that normal by my PC that it this scene if i play it for the first time i got 1 to max 15 fps . And my GPU and CPU usage is not even by 30% .
And if i for ...
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Desktop GTX 1070 barely faster than GTX 1050-Ti mobile in cycles
I'm rendering 10 frames of a scene both on a Dell XPS 15 Notebook and my Desktop PC.
Desktop: i5-2500K + GTX 1070 8GB
Notebook: i7-8750H + GTX 1050-Ti mobile
Desktop:
CPU (i5-2500K): 2:34 min
GPU ...
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332
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Intel optane, does it have any benefit in Blender?
I heard Intel optane has benefit in 3d application by making them load faster and other benefits include 3d modeling.
Blender already loads faster than the other 3d applications I use and we have the ...
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Blender 2.8 cannot save document, or cannot re-open a document (sculpting) and crashes my whole computer
I run Mojave 10.14.6, 8 GB
My downloaded Blender 2.8 from the blender 's website two weeks ago.
It seems rather random. In sculpting mode, some files suddenly won't save. Instead the program freezes ...
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639
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How do I render animations in a workspace-like manner? (Blender 2.8)
I'm starting to learn how to animate, and something that I have noticed in blender is that it is faster to use a screen recorder (such as OBS) and play back the animation in blender (in Eevee Viewport ...
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how can i improve script execution time
Is it there a control or something to assign more resources to script execution. Or the only option is to improve script's code performance?.
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Blender 2.8 general frame lag
With the recent release of Blender 2.80, I was expecting it to be as polished and lag free as 2.79b
I guess I set my expectations a little too high cause I'm disappointed it still feels like it's in ...
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No render speed difference in Eevee cpu vs gpu
My gpu got damaged last night so I removed it and started using blender with cpu only. I found that there is no difference in render speed or performance between cpu vs gpu. 2 second per frame on cpu ...
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sculpting is slow on high dpi display
I was about to learn sculpting in blender, and I noticed it's very slow. Just the sculpting. Navigation and everything else is very performant. I tried scaling the blender window so it's 1/4 of my ...
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Blender file taking over an hour to load, is this normal?
System spec: Threadripper 12 core, SSD, 32GB RAM, 2080ti
File details: 40MB .blend 10 million verts in a curve.
File creation details: Curve created via importing of a very large and complex SVG
...
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Blender for competition? [closed]
I am in a competition. I am literally 2 weeks into game dev, and rarely use Blender. I normally just use it for a brief tutorial, and if it works, it works, if not, I just forget about. So the ...
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Saving blend-files straight to server nets 0.5% speed of a windows file copy, how to fix?
Some context:
Part of our company (about 3 fulltime people) do ArchViz, we're using Blender 2.79b and are transitioning to Blender 2.8. Tests underneath were done using 2.8. I'm not an artist myself ...
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AMD RX 570 GPU slower rendering than NVidia GTX 1050 Ti?
I recently built a new PC running on a Ryzen 7 2700X CPU and AMD Radeon RX 570 GPU. However, I'm getting significantly longer Cycles rendering times than my old Intel i5 PC running on an older NVidia ...
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Cycles: Build without SSE and AVX
I am trying to benchmark Cycles performance without SSE, with SSE only, and with AVX instructions.
I am finding weird behavior where if I switch off the "WITH_CPU_SSE" flag in CMakeLists.txt, the ...
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Why is Blender 2.8 slower than older versions?
I've been designing a car in blender, and getting a good image or animation takes hours. Then I heard 2.8 was out and that it cuts render times down significantly. So I installed it and I found that ...
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375
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Texture Painting stuttering
i am having an issue where whilst I am painting (on a new layer, effecting Alpha) the stroke is very 'bumpy', and stutters. I have attached a video to demonstrate. I'm in Look Dev in the video, and ...
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860
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Sculpting Performance Workflow
I'm new to Blender and using it to sculpt a character. I have been using Dyntopo for the majority of the mesh up to the point where i got to maybe 1 mio vertices, where I have started to subdivide the ...
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Slow Playback of mocap data
I downloaded Animations from mixamo to import into my scene. In the mixamo webapp the animation plays back at 100fps. In Blender 2.8, its 7fps.
Solid mode, no modifiers, no materials. No other ...
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What does tile size actually affect?
Besides the obvious you see is the blocks you see when rendering, I see it changes the size of the samples and from tips and testing it can affect render times, typically higher size (eg 256x256 ) on ...
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915
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Render times changing over course of render
I started rendering an animation in cycles in the late after noon than went to bed with it rendering rendering at around 25 sec per frame (when tested at what should of been the most labor intensive ...
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Is a large UV map heavy on performance while playing?
I have a very large UV map for a house of mine. Due to the nature of the shingles being single duplicated objects, I have quite a giant UV map when exporting and importing for Unreal Engine 4. Does ...
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Tips on reducing Polycount in Scene
I have a problem. There is a lot of figures I created for an art project in my school.
I used UV Spheres as models and smooth shaded them. In the end I had 35 million vertices and as you can see ...
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949
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Slow Performance When Changing Object Data [2.8]
I'm not sure if it's the object data actually, but I couldn't think of a better way to phrase it. Whenever I ctrl+z, change materials, open/close the file, make or change collections, etc, it takes ...
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EEVEE render not using GPU fully
I am rendering PNG RGBA frames in EEVEE of a camera fly over a historic building modeled in Blender 2.80.74. PC specs: i7 with 20GB, 1Gb SSD and a GTX 1070 & GTX 1050. EEVEE uses only the GTX 1070....
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Is the File too Big or is Blender too Slow?
I am just now getting involved in photogrammetry and as we know the files are quite large. I am importing an .OBJ file from Meshroom and from the import to any other click there is lag.
Being new I ...
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Where are the settings to increase cycles threads?
I am trying to adapt the cycles render code to allow me to use the full threading power of my GPU (Radeon RX750 8Gb, 2048 OpenGL threads). There seems to be a limit from some time ago of 1024 threads, ...
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Cycles Render CPU Usage Low with Dual Xeon
low CPU usage on Dual Xeon (128GB RAM) when rendering "blenderman" using command line and Cycles on Ubuntu and Win10. Using latest 2.8 build.
Single i7 3rd Gen gets upto 100% using GUI and CMD on ...
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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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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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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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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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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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909
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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, ...
user15147
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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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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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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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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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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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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 ...
