Questions tagged [optimization]
For use on questions asking how to optimize specific things. i.e. game logic, rigid body simulations, viewport performance.
160
questions
36
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3
answers
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What does the simplify AO bounces value do?
I recently discovered that turning on Simplify in the Scene panel, and setting "AO Bounces" to 2, reduced my render times from 30 minutes to 10 minutes. A three times speed improvement! But... I still ...
- 1,289
15
votes
3
answers
6k
views
Blender Sequencer speed is Extremely slow
I have a video (720p) that is 37 minutes long, with a bitrate of ~3000kb/s.
This video is a game recording, so 37 minutes worth of this footage was written in 37 minutes, while other extremely CPU, ...
- 258
14
votes
2
answers
19k
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File optimization: Duplicate or linked duplicate?
I'm currently in the process of optimizing my blend file.
I am still relatively new at blender and would like some documentation on file size and render time reduction using linked or unlinked ...
- 2,078
9
votes
4
answers
14k
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How to render a scene faster in Cycles?
I have a scene of an office. It has chairs, tables, computers, and so on.
I would like to know how I can render this scene faster as I am planning to make animation inside the office and don't want ...
- 449
9
votes
2
answers
1k
views
Is there a way to tell Blender NOT to load certain images during render?
So I have this problem, renders take too long because its loading unnecesary images.
I'm working on an animation and I'm using very large Images with all the character frames.
And I want to somehow ...
- 419
8
votes
3
answers
4k
views
Managing/Reducing noise in a night scene
I've been trying to get a pretty noise free image from this scene for a while. And nothing seems to be working. I've been trying to use 3000 samples, then rendering different noise seeds and composite ...
- 209
6
votes
3
answers
702
views
Object displacement over LOD
I am creating a scene for the game engine and setting up the ground now. I have different levels of details and thus want to keep my pieces as different objects. I duplicated it several times and ...
- 722
6
votes
1
answer
753
views
Is it possible to opitimize Cycles' refraction material?
I want to create an animation where a sphere moves. This sphere is going to be textured with a PBR work flow. However, the sphere will feature a relatively complex node setup, wherein one of the main ...
- 524
5
votes
2
answers
2k
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Is it possible to dynamically reduce the number particles based on distance from camera?
I want to render an animation in which a car drives along a certain stretch of road. To one side there is a grass field, but this is quite big, both in the direction perpendicular to the car, and ...
- 2,388
5
votes
2
answers
1k
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Find submesh and replace with instances
I have a lot of meshes of different houses, each house is a single mesh, but parts of this single mesh has some repeating features, such as windows, doors, etc.
I am looking for a way to reduce the ...
- 103
5
votes
3
answers
9k
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Is it possible to simplify this mesh? I have too many vertices
I'm struggling to work my model with this amount of edge-loops/handles. Can anyone suggest a less cumbersome approach?
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4
votes
1
answer
377
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Is there a faster (computationally) way than Mesh Boolean to poke holes into a grid plane in Geometry nodes?
I have a grid plane that should appear as an actual grid, but with holes at arbitrary points where the stars are (from this video I made https://youtu.be/tso5pSzBRDo). I'm currently using a mesh grid ...
4
votes
2
answers
380
views
Remove faces in contact with each other
After adding several cubes on top of a plane, the bottom part of those cubes is in contact with the plane. The idea is remove redundant faces that are not seen by the camera to optimized the scene.
In ...
- 41
4
votes
1
answer
248
views
Is there a timeout/max capacity in blender's phyton scripts?
I can't figure out if there's something wrong with blender or my script. So far I have this little code, which does its job if the file which is parsing is not SO big:
...
- 43
4
votes
1
answer
729
views
Profile a blender file to optimize render speed and quality
I know the gaming world has tools to optimize performance for their target devices... Do we have something like that in the Blender realm?
I would love to understand my blend files better with an eye ...
- 2,247
4
votes
1
answer
456
views
Optimal renders of the same scene from multiple cameras
I am using Cycles with OptiX to render a lot of different camera angles of the same scene.
Using code like:
...
4
votes
1
answer
200
views
How does blender really save a blendfile?
While working on a blendfile that is approximately 1GB and consists of many different objects, groups, materials, particle systems, etc.
When saving your file, does blender overwrite the entire 1GB ...
- 2,078
4
votes
1
answer
2k
views
How to set up SSS on cycles for efficient rendering
How do I set up SSS shaders properly to render efficiently in animation projects. Are there any specific optimizations to consider?
I am trying to render some orange juice in a bottle and getting ...
- 1,131
4
votes
1
answer
1k
views
Render large 3D graphs (Millions of vertices & edges)
I need to somehow render several large 3D graphs where each vertex has a position in 3D as well as edges between some of these vertices. I have an XML file with the graph structure (a list of vertices ...
- 61
4
votes
0
answers
232
views
Hacks for improving performance on large scenes [closed]
Hi I’m using blender mostly doing exterior architecture visualisations. Through previous months I’ve found many problems that affects this software. But the main issue is lack of performance power ...
4
votes
2
answers
2k
views
How to avoid extraneous edges when using loop cut?
In order to create the detail for the shape on the right of the image below:
I had to create a lot of loop cuts. But the loop cuts create all the extra edges further to the left of the model, which ...
- 672
3
votes
2
answers
6k
views
Blender file size grows and never shrinks
I made a huge project, wanted to reduce file size from 1.3GB to below 1GB. Compressing did not help. I removed objects from scene. Also textures. I then realized, the file size even was the same when ...
- 153
3
votes
2
answers
5k
views
Reducing internal faces generated by extensive curve extrusion?
Excuse my title gore.
I've been modeling Gothic architecture:
(reference)
Here's the blend file I've been practicing with.
So I'm extruding along curves a lot. The complication is the fact that ...
- 321
3
votes
1
answer
2k
views
Use all Ram on Blender when rendering? (Cycles and Blender Render)
I have 32 GB Ram on my computer, how can i make Blender use all (or at least, the most) of the RAM when rendering?
- 5,357
3
votes
1
answer
606
views
Why is triangle used instead of Quad?
Why is triangle used instead of Quad?
Why is triangle used instead of quad in the first screenshot as in the 2nd screenshot?
I thought diamond shaped quads could be used?
I'm sorry, because I was ...
- 83
3
votes
1
answer
2k
views
Blender game runs very slow
I am making my first game in Blender, so being kind of newbie, but I notice that when I run it in the standalone player, it runs very slow and jerky (in the built-in also, but not as bad), like some ...
- 41
3
votes
2
answers
1k
views
Can blender game engine hide vertices that are not visible to the camera?
Is it possible for the Blender Game Engine to hide any vertices/faces currently not visible to the camera in order to optimize game performance? This would be for parts of meshes specifically.
- 33
3
votes
1
answer
115
views
How to render lots of fur that does not fit into memory all at once?
I'm currently making a short film in Blender with a lot of animals. In a specific scene I have around 10 of them with full groom. The models come from VFX Grace and other stores, they are super high ...
- 51
3
votes
1
answer
529
views
How come the Blender 2.83 Splash Screen by Ian Hubert takes so much less time to render than my Doughnut tutorial?
I'm completely new to blender and going through the Doughnut tutorial at the moment. I'm working on an old laptop (GTX 850M, i5-4210U, 8GB RAM) and the doughnut and cup together take about 10 mins to ...
3
votes
2
answers
1k
views
What's better: adding new primitives or extrude from existing? [closed]
This is a very general question. I wanted to know what the advantages and disadvantages of extruding from an existing primitive be over adding a new primitive. To give an example, I have started ...
- 31
3
votes
0
answers
137
views
How to optimize Viewport for video editing on low-spec hardware?
I downloaded blender in hopes of using it for simple video editing, and while it appears to have all the tools I want, trying to preview the video is simply not working well enough. The preview is ...
- 31
2
votes
3
answers
1k
views
How to avoid white lines in texture while resizing
Sometimes I need to downgrade the resolution of the texture of a model to optimize it for web visualization. To do that i just take the texture in photoshop and export them with a lower resolution and ...
- 23
2
votes
1
answer
1k
views
How to not render unnecessary tiles? [duplicate]
When rendering an image in cycles render, I find that lots of the time is spend rendering completely blank tiles, especially when I have high samples. Is there any way for blender to know when a tile ...
- 109
2
votes
2
answers
2k
views
How to hide all subdivision to optimize viewport
I'm working on a scene that is entirely based on subdivision loops, As time passes by the scene got detailed and the view-port got laggy.
I turned off subdivision views to optimize it, but that meant ...
- 508
2
votes
1
answer
84
views
Is it possible to further optimize this qb writer?
I have this QB writer and it runs quite ok but takes longer when bigger files are written. I was wondering if there are any libraries out there or anything in this script that can be optimized to make ...
- 259
2
votes
1
answer
311
views
"Merge by Distance" is destroying information about double-sided polygons
I have a mesh in which I want all of the faces to display as double-sided (after exporting to a game engine), so I duplicated the mesh with Ctrl+D and flipped the normals. Then I figured I'd optimize ...
- 359
2
votes
2
answers
874
views
Reduce subdivision quality in viewport on multiple objects at once
I increased the viewport quality on my subdivision but forgot to reduce it after finishing the model and have since duplicated the model like 60 times, is there a way to turn down the viewport quality ...
- 483
2
votes
1
answer
4k
views
Is there a way to allocate more memory to GPU for the GPU Compute
I have been working on a solution to a situation I currently have with rendering using the GPU. In the process, I find that my Card's GPU Memory is only 512MB
First Question, Could this be why when ...
- 109
2
votes
3
answers
497
views
How to tweak render when each render takes so long?
Like any artistic project, until you can see that final render, it's impossible to know how close you are to achieving your goal. As we will all know, from being 'almost finished' to being finished ...
- 21
2
votes
1
answer
560
views
Blender for Game Development - Unity3D [closed]
I've been getting into Unity game dev recently. Previously, I've also done some modeling from within Blender. Of course, there's a big difference between the rendering methods on the two different ...
- 155
2
votes
1
answer
2k
views
Does Blender create large cached files on Mac computers?
I am still new to Blender (less than 1 year), and have read this post indicating that Blender sometimes creates large cache files.
The user - and thread - are regarding the use of Blender on a non-...
- 4,611
2
votes
1
answer
121
views
I cannot get a scene to render in blender
I am using Blender version 2.74 with cycles and I have a scene that I cannot get to render. When I click render it will just stay on the viewport will just show a checkerboard and show no signs of ...
2
votes
1
answer
1k
views
How to export single animation to GLB used in multiple objects?
I have a scene where I have three cubes, rotating at the exact same speed. I want to export this to .glb so that only one animation is packed into the .glb, to optimize the file size.
I have tried ...
- 1,116
2
votes
1
answer
738
views
Render in Real Time? Fasten Render Times?
i do love to use this software, for a lot of things, like faster modeling, and friendly interface;
The thing is, i work for a Dome System, so i have to Render 4K (4096x4096p) resolution frames at ...
- 5,357
2
votes
1
answer
1k
views
How do I optimize my large grass system to render quicker?
I'm working on an animation which has a lot of natural landscapes, and I'm using a particle system to generate grass (Models that come with the Graswald addon). These frames take a long time to render ...
- 121
2
votes
1
answer
2k
views
convert a .fbx model to threejs with textures
I have an insanely detailed .fbx model that I need to optimize and export to threejs. It comes with a lot of texture files which I need too bake into one image to go with the threejs model. ...
- 31
2
votes
0
answers
34
views
Does Blender python run slower when strictly typing?
I have a code snippet without strict data-typing:
...
- 259
2
votes
0
answers
26
views
Large environment scene workflow
I'm about to embark on a huge project that requires me to create an environment that is somewhere between 2-5km. The problem I'm facing is that I need most areas/sections of this environment to be ...
2
votes
1
answer
259
views
How to clean up crazy mesh?
I'm a novice at Blender.
I started using a program called 3d Slicer for medical images. It takes a medical scan (CT, MRI etc) and allows you to turn it into a 3d image (in this case .obj file for ...
- 21
2
votes
0
answers
533
views
How can I go about optimizing textures?
I've modeled six rocks, unwrapped all six of them in one texture, but after painting three rocks I decided to reuse them for the remaining three. Is there a way to move these UV islands around along ...
- 21