Blender Running Laggy and Slow, Almost Unusable #54576

New Issue

Drake · 2018-04-11T23:23:46+02:00

Drake commented

2018-04-11 23:23:46 +02:00

System Information
Windows 10
GTX 1080 Updated Drivers 391.35
Intel i7 4.0 GHZ processor
2 500GB SSDs
16 GB RAM

Blender Version
Broken: 2.79b
Worked: never

Whenever I run blender, the entire application runs incredibly slowly and laggy, getting worse if more objects are on screen (about 5-0.5 fps). The application seems to cap out at 6 GB of RAM constantly, but barely uses above 20% of my processor. It does not slow down my computer at all, just blender runs slowly.

I have tried changing the draw method in system settings. It allowed it to run a little bit better, but still terribly laggy, and it caused an issue making the UI glitchy and almost unusable. I have read online that running blender with integrated graphics can help, but my computer does not have an integrated graphic card, only a dedicated one.

Exact steps for others to reproduce the error
Any time running Blender

**System Information** Windows 10 GTX 1080 Updated Drivers 391.35 Intel i7 4.0 GHZ processor 2 500GB SSDs 16 GB RAM **Blender Version** Broken: 2.79b Worked: never Whenever I run blender, the entire application runs incredibly slowly and laggy, getting worse if more objects are on screen (about 5-0.5 fps). The application seems to cap out at 6 GB of RAM constantly, but barely uses above 20% of my processor. It does not slow down my computer at all, just blender runs slowly. I have tried changing the draw method in system settings. It allowed it to run a little bit better, but still terribly laggy, and it caused an issue making the UI glitchy and almost unusable. I have read online that running blender with integrated graphics can help, but my computer does not have an integrated graphic card, only a dedicated one. **Exact steps for others to reproduce the error** Any time running Blender

Drake commented

2018-04-11 23:23:46 +02:00

Added subscriber: @drake1138

Ray molenkamp commented

2018-04-11 23:25:59 +02:00

Added subscriber: @LazyDodo

Ray molenkamp commented

2018-04-11 23:26:00 +02:00

Is this with the standard cube or with a very large scene?

Drake commented

2018-04-12 01:33:48 +02:00

This occurs with a standard cube (about 2-5 fps). If I load in a character model it gets even worse( below 1 fps)

Germano Cavalcante commented

2018-04-12 03:20:42 +02:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2018-04-12 03:20:42 +02:00

Let's see what graphics card blender is using on your computer.
In the Help tab click on Save System Info and then share the file generated here. (Maybe that gives some clue of what's going on).
Another thing that would help investigate would be by opening blender from the Command Prompt adding the arguments --debug-gpu. The prompt will display some information that may be useful.

Let's see what graphics card blender is using on your computer. In the `Help` tab click on `Save System Info` and then share the file generated here. (Maybe that gives some clue of what's going on). Another thing that would help investigate would be by [opening blender from the Command Prompt ](https://docs.blender.org/manual/en/dev/render/workflows/command_line.html#ms-windows) adding the arguments `--debug-gpu`. The prompt will display some information that may be useful.

Drake commented

2018-04-12 03:44:40 +02:00

Alright, I've attached the file and I will look at the information displayed from the debugging, thank you.
system-info.txt

Alright, I've attached the file and I will look at the information displayed from the debugging, thank you. [system-info.txt](https://archive.blender.org/developer/F2665286/system-info.txt)

Ray molenkamp commented

2018-04-12 03:49:47 +02:00

Looks like you're running on mesa? did you by any chance drop a opengl32.dll in your blender folder?

Drake commented

2018-04-12 04:12:09 +02:00

I don't believe so, I've been having this problem since I first download blender yesterday, I'll check if I can find that file.

Drake commented

2018-04-12 04:13:52 +02:00

Woah, I found the file you were talking about and removed it. Everything seems to be running fine now. I have no idea how that file was in there if it was not supposed to be.

Thanks for all of your help!

Woah, I found the file you were talking about and removed it. Everything seems to be running fine now. I have no idea how that file was in there if it was not supposed to be. Thanks for all of your help!

Ray molenkamp commented

2018-04-12 05:36:00 +02:00

Changed status from 'Open' to: 'Archived'

Ray molenkamp closed this issue

2018-04-12 05:36:00 +02:00

Ray molenkamp self-assigned this 2018-04-12 05:36:00 +02:00

kingsley commented

2018-08-15 09:59:25 +02:00

Added subscriber: @Adekingsley

kingsley commented

2018-08-15 09:59:25 +02:00

waooo thanks so much this information worked for me too..... my blender is now working fine and faster

Stephen Fleece commented

2018-10-24 16:02:44 +02:00

Added subscriber: @RepJunkieJr

Stephen Fleece commented

2018-10-24 16:02:44 +02:00

In #54576#493093, @LazyDodo wrote:
Looks like you're running on mesa? did you by any chance drop a opengl32.dll in your blender folder?

That's what I did, although I didn't have much of a choice. Blender won't run without it. I copied it from my JKA game, if that helps.

> In #54576#493093, @LazyDodo wrote: > Looks like you're running on mesa? did you by any chance drop a opengl32.dll in your blender folder? That's what I did, although I didn't have much of a choice. Blender won't run without it. I copied it from my JKA game, if that helps.

Ray molenkamp commented

2018-10-24 17:07:52 +02:00

If you drop in an software opengl implementation, things are gonna be slow, If blender doesn't run without it you either have an old video card, or have driver issues.

Todd Robert Vander Galien commented

2019-06-03 14:20:10 +02:00

Added subscriber: @ToddVG

Ray molenkamp was unassigned by Todd Robert Vander Galien

2019-06-03 14:20:10 +02:00

Todd Robert Vander Galien commented

2019-06-03 14:20:10 +02:00

I am having the same issue, but can’t find any file added file mentioned above.

I am just now getting involved in this photogrammetry and as we know the files are quit large. I am importing an .OBJ file from Meshroom and from the import to any other click there is lag.

Being new I am trying everything to speed it up, I thought deleting large parts of the file would help, but there is no clear way that I can delete from my import. I would like to speed this process up.

TWO QUESTIONS

1- Please what is the easiest way to delete a large amount of data from the image? (example = counter top around a coffee cup. Or maybe grass around a concrete pad that has a statue on it. Or part of a cloud that was mistakenly brought into the photogrammetry process?

2- SPEED.. baby SPEED. “ I am using the process B to choose area then X to delete vertex, I rotate around to make sure to get as much as I can but with the lag there is 5-10 sec wait between clicks.

Please help

I am having the same issue, but can’t find any file added file mentioned above. I am just now getting involved in this photogrammetry and as we know the files are quit large. I am importing an .OBJ file from Meshroom and from the import to any other click there is lag. Being new I am trying everything to speed it up, I thought deleting large parts of the file would help, but there is no clear way that I can delete from my import. I would like to speed this process up. TWO QUESTIONS 1- Please what is the easiest way to delete a large amount of data from the image? (example = counter top around a coffee cup. Or maybe grass around a concrete pad that has a statue on it. Or part of a cloud that was mistakenly brought into the photogrammetry process? 2- SPEED.. baby SPEED. “ I am using the process B to choose area then X to delete vertex, I rotate around to make sure to get as much as I can but with the lag there is 5-10 sec wait between clicks. Please help

Tremaine McGill commented

2020-05-25 02:58:18 +02:00

Added subscriber: @itsmhwk

Tremaine McGill commented

2020-05-25 02:58:18 +02:00

I've got this issue now, dropped the opengl file in the folder only because I was getting an error before where it wouldn't open Blender and apparently that was the fix. I just built a computer with 32gb of RAM, and checking task manager it's not touching more than 2% of that so I'm not sure how to fix. Would I need to update the drivers and if so which drivers would they be? I've tried un- and reinstalling but no success

hebe commented

2020-05-27 18:08:21 +02:00

Added subscriber: @hebe

hebe commented

2020-05-27 18:08:21 +02:00

In #54576#493093, @LazyDodo wrote:
Looks like you're running on mesa? did you by any chance drop a opengl32.dll in your blender folder?

hey Ray, I have the same issue as Drake and I'm wondering if you could help me out please man! Ive saved the system info and ill attach it here

I would be so grateful if u could help
system-info.txt

> In #54576#493093, @LazyDodo wrote: > Looks like you're running on mesa? did you by any chance drop a opengl32.dll in your blender folder? hey Ray, I have the same issue as Drake and I'm wondering if you could help me out please man! Ive saved the system info and ill attach it here I would be so grateful if u could help [system-info.txt](https://archive.blender.org/developer/F8558146/system-info.txt)

Aryan Raj commented

2020-08-04 06:36:46 +02:00

Added subscriber: @awtar_aryan

Aryan Raj commented

2020-08-04 06:36:46 +02:00

on adding too many things my blender starts lagging and on deleting the opengl32.dll the software crash and tell to reinstall and the problem reoccur and also it doesn't happen in the other projects only that particular project

mongi commented

2020-08-14 17:31:39 +02:00

Added subscriber: @mongidomo

mongi commented

2020-08-14 17:31:39 +02:00

Changed status from 'Archived' to: 'Resolved'

mongi commented

2020-08-14 17:31:39 +02:00

man i downloded blender 2.83 man and now it dint open it crashed at the begining itself saying something update the parmes or it gt 4100hz than 4800hz . then i saw some yt videos and downloded the opengl32 file and placed in the blender location and blender now works but lags like hell . very slow cant even move the cube . it takes so long >>// what to do now pls help??

Gustavo commented

2020-09-11 18:27:40 +02:00

Added subscriber: @Gutt

Gustavo commented

2020-09-11 18:27:40 +02:00

In #54576#545572, @RepJunkieJr wrote:

In #54576#493093, @LazyDodo wrote:
Looks like you're running on mesa? did you by any chance drop a opengl32.dll in your blender folder?

That's what I did, although I didn't have much of a choice. Blender won't run without it. I copied it from my JKA game, if that helps.

Same here but I copied it from the Blender 2.83 folder and is running fine now (Tested with large city sceane)

> In #54576#545572, @RepJunkieJr wrote: >> In #54576#493093, @LazyDodo wrote: >> Looks like you're running on mesa? did you by any chance drop a opengl32.dll in your blender folder? > > That's what I did, although I didn't have much of a choice. Blender won't run without it. I copied it from my JKA game, if that helps. Same here but I copied it from the Blender 2.83 folder and is running fine now (Tested with large city sceane)

Ray molenkamp commented

2020-09-11 18:40:54 +02:00

People keep pinging this thread so i'll give another rundown on what is happening here.

if blender only runs by dropping a file named opengl32.dll next to the blender executable there's two options

You have a really old computer, with a GPU not capable of running blender, by dropping in this software opengl dll you will be able to run blender, but your computer is already old and offloading the work the GPU normally does to the CPU will just make it unbearably slow. You are most likely better off running a version of blender that still supports your aging hardware (ie blender 2.7x/2.6x)
You have a modern computer, with a GPU capable of running blender but have driver issues, by dropping in the software opengl dll, you are too offloading the work the GPU would normally do to the CPU and things would still be very slow, the advise here is to resolve any driver issues you may have and removing the software opengl implementation from the blender folder, so you can urn on your actual GPU the way blender was designed to be used.

People keep pinging this thread so i'll give another rundown on what is happening here. if blender only runs by dropping a file named opengl32.dll next to the blender executable there's two options 1) You have a really old computer, with a GPU not capable of running blender, by dropping in this software opengl dll you will be able to run blender, but your computer is already old and offloading the work the GPU normally does to the CPU will just make it unbearably slow. You are most likely better off running a version of blender that still supports your aging hardware (ie blender 2.7x/2.6x) 2) You have a modern computer, with a [GPU capable of running blender ](https://www.blender.org/download/requirements/) but have driver issues, by dropping in the software opengl dll, you are too offloading the work the GPU would normally do to the CPU and things would still be very slow, the advise here is to resolve any driver issues you may have and removing the software opengl implementation from the blender folder, so you can urn on your actual GPU the way blender was designed to be used.

Hawk commented

2020-10-05 17:43:33 +02:00

Added subscriber: @HawkMoth65

Hawk commented

2020-10-05 17:43:33 +02:00

I have the same problem, but I do not have an opengl32.dll file. Can someone please help me out? system-info.txt

I have the same problem, but I do not have an opengl32.dll file. Can someone please help me out? [system-info.txt](https://archive.blender.org/developer/F8958250/system-info.txt)

Germano Cavalcante commented

2020-10-05 18:00:06 +02:00

In #54576#1028512, @HawkMoth65 wrote:
I have the same problem, but I do not have an opengl32.dll file. Can someone please help me out? system-info.txt

Thanks for the info, but if you do not have an opengl32.dll file, then it is not the same problem, so it must be reported separately.

> In #54576#1028512, @HawkMoth65 wrote: > I have the same problem, but I do not have an opengl32.dll file. Can someone please help me out? [system-info.txt](https://archive.blender.org/developer/F8958250/system-info.txt) Thanks for the info, but if you do not have an `opengl32.dll` file, then it is not the same problem, so it must be reported separately.

Suvidh khasgiwala commented

2020-11-25 12:29:05 +01:00

Added subscriber: @Lovely_Bigga

Suvidh khasgiwala commented

2020-11-25 12:29:05 +01:00

My blender 2.90.1 is slow too, I don't have opengl32.dll but I have opnenAL.dll

Nsanzabera commented

2020-12-04 11:49:14 +01:00

Added subscriber: @Eliehavard

Nsanzabera commented

2020-12-04 11:49:14 +01:00

opengl32.dll file just remove it, it will be fixed, and blender should correct this issue because it make it worse this beautiful software.

And thanks dude for sharing this useful tips

opengl32.dll file just remove it, it will be fixed, and blender should correct this issue because it make it worse this beautiful software. And thanks dude for sharing this useful tips

Afiq commented

2020-12-06 12:07:25 +01:00

Added subscriber: @Neji

Afiq commented

2020-12-06 12:07:25 +01:00

Hi how to fix this - whenever i want to duplicate something, assign material or else, it will not responding and must wait a few minutes then it will duplicate the object. It keep no responding and also while i want to save the project it also not responding

Nathan commented

2021-01-09 17:49:42 +01:00

Added subscriber: @PrimeSide

Nathan commented

2021-01-09 17:49:42 +01:00

hello. last night I was animating a 2d scene on my computer , and blender was running completely smoothly. but since today ever time i try to play my animation a FPS is way lower then what i should be, even when all tab were closed, the system wasn't overheating, and my computer was at it's highest performance. but instead of running in 24 fps, it would drop to 12 and sometimes even 8 fps. I haven't changed any settings but this is still happening and it's extremely frustrating

Sign in to join this conversation.

No Label

Download

What's New

Blender Studio

Manual

Developers Blog

Documentation

Benchmark

Blender Conference

Development Fund

One-time Donations

Blender Running Laggy and Slow, Almost Unusable #54576