Questions tagged [optimization]
For use on questions asking how to optimize specific things. i.e. game logic, rigid body simulations, viewport performance.
153
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Retopologize high poly geometry-nodes-generated shape to low poly
I have this geometry that I generated using geometry nodes. It is super high poly and I need to reduce the number of polygons to as low as possible. What would be the most optimal way to do this? I ...
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Modifier multiplies geometry unnecessarily. "Array" modifier optimization
How make that the Array modified not produce vertices, but do a procedure similar to Duplicate Linked (Alt + D) which saves rather than multiplies geometry unnecessarily?
thank you
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4
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308
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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 ...
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2
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74
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How to merge image textures / materials into 1 to increase performance?
I got this really big scene that shares some image textures in some parts of the map. Is there any way I can just merge all of them into 1 master image? Like, if I had a material called "wood&...
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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 ...
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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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54
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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 ...
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14
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Scene is still slow, despite unloading heavy collections
So I've been working on this scene here, relatively big, got a couple hundred objects, many materials, but it works quite well on my machine. However, after appending a city, the scene tanks and even ...
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How can I avoid Depsgraph rebuild times?
I have two objects (in collections) in the scene and I want to render only one of them programmatically (from Python). When I measure the rendering time, there is always overhead of Depsgraph build ...
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82
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Blender Automatic LoD (Level of Detail) Optimization Disable
i was working in a pretty small scene in blender (300mb) and had to open another program to get some files. That program uses a lot of recources but it worked no problem. But when i returned to ...
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196
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how can i speed smart uv project unwrap up with python? (side note this is a 100 fold times faster when using it in the ui)
Ok as the title says I am having some mega speed issues when unwrapping with smart project in python, like on a smaller project it took 30mins to unwrap inside the editor and when executed via the ...
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103
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How can I bring Color from a material into geo nodes and use it as a filter?
First time posting here. I've been scratching my head on how to do this for some time now, and I can't seem to figure it out.
I'm looking to create a detailed texture(Solid black and white) in shading ...
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176
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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 ...
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How to parent shutter lens rig to object
So I created a shutter lens rig for an eyeball that works fine, but when I try to parent it to an eyeball on my character it doesn't keep transform and I'm not sure why. No matter how I try to parent ...
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27
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More efficient mesh than zigzag?
I have a svg with a lot of edges (probably in the 100's of thousands). I was noticing that when I start extruding there's a lot more processing that needs to be done. Is there a way to simplify this ...
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Can not save CPU without deleting objects completely
I am animating some characters and my framerate is tanking. I have been troubleshooting a lot and have found that even when a collection containing a character's meshes and rig is completely disabled ...
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Does low viewport fps affect rendering? (Slowed down because of many objects)
I have low Framerate in viewport playback. Does that affect render fps? I saw Blender rendering the animation frame-by-frame, but will my rendered video get slower because the framerate is slowed down?...
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195
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Blender Face Weigted Normals using manual face selection sets
I have been using a super powerful script in maya created by Etienne Nadeau called the Normal Toolkit. Basically it allows you to pick out your chamfers manually and run the script on your mesh to ...
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549
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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 ...
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69
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is there a faster way to copy select vertex position from one side to another
Lets say I am making an object with two sides that are symmetrical, lets say over the X-axis, and I need to realign some vertices to match changes I have made on only one side. then I will go to the ...
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Not able to render a single frame from this scene in eevee, how can I optimize this project for rendering performance without losing quality?
In this EEVEE scene I used Jsplacement to produce a robotic atmosphere. As much as I love the look of it I believe it's eating up all my CPU power and memory. My current PC specs: AMD Ryzen 7 3700X, ...
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57
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Hidden armature meshes and physics objects are still processed for a visible armature, is there a workaround?
My animation playback is less than 2fps in a certain blend file. I've tried opening it with addons disabled, which brings it from <1fps to <2fps.
A have a Rigify rigged character in a scene. I ...
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72
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Blender file size bloated after importing mocap data
This is not a question, just wanted to share something that I found out recently. Please do correct me if I'm wrong.
So, our mocap result generated a bunch of actions, one action per bone. And actions ...
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82
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Is vector math node slower than math node?
I looked at https://docs.blender.org/manual/en/latest/render/cycles/optimizations/nodes.html#node-optimizations and apparently Blender is pretty good at optimizing node trees.
This made me wonder a ...
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277
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"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 ...
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268
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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 ...
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410
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Shortening time for repeated renders on cycles for animations
1 Frame rendered in Cycles with original settings (~11sec)
1 Frame rendered in Cycles with thibsert's suggestion (~6sec-8sec)
Clip rendered in Cycles for reference (forgot motion blur): https://...
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203
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Can you optimize Armature performance in Blender?
My scene contains one character model from Street Fighter V, and I get around 5fps. It's strange, since I can easily run that actual game at 60fps, but I suppose there are reasons Blender would be ...
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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 ...
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272
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How To Create A Normal Map Of Woven Wire Design
I'm creating a microphone model but I'm struggling with the woven metal wire mesh.
This is what I want to create:
The image is from here.
The woven design was easy to model but due to the poly count ...
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166
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Has camera culling & crop to render region no effect on freestyle calculations?
I'm rendering a large environment scene of 3.000.000 triangles with freestyle outlines at high output resolutions. The geometry is optimised, textures are basic and I've done what I could to avoid ...
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64
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Which disintegration/reveal/build effect is fast for millions of vertices
I am rendering for disintegration/reveal/build(the built-in modifier) for millions of vertices. I learnt disintegration & reveal effect from popular Youtube tutorial using geometry nodes.
They ...
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859
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Blender running slow when editing rig, changing poses, and during animation
I've posted a similar question in the recent past, and have gotten some good advice, but it didn't solve the problem. Currently, I'm working on an anime-styled female character. I've completed the ...
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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 ...
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143
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Blender Cycles Render Speed Optimization for animations
i have a couple of questions about speed optimization for Cycles Render Animations. Many of the posts that I have seen refer to older versions of Blender and are sometimes a bit contradictory. I´m ...
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Rendering Issues
I am having difficulty rendering my animation. The project file itself is pretty simple with the majority of verts being from a Blender Kit asset. The total amount of verts is rather low for a sene ...
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Import render settings from another .blend file [duplicate]
Is it possible to import render settings (e.g. how many times the light paths bounce for Cycles) from another .blend file? There are too many of them and I don't want to check and copy each one ...
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400
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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:
...
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179
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Blender freeze after 120-150 Frames rendering
my blender freeze after rendering an animation after 120-150 Frames.
This is really weird, because It never happens on my 980 ti, and now I've got a 3090 rtx and it freezes.
Somebody have an idea?
In ...
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480
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FPS drop when positioning the character
My problem is as follows
(is a model ported from SFM to Blender)
Animation attempt unsuccessful
Solid Mode
When I create a frame with the rig or in positioning mode, The FPS ends up dropping to 3 or ...
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70
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What is this group that applies transforms onto objects?
I downloaded an asset kit which when imported into blender places objects inside some sort of group (screenshots below). On their own objects have incorrect size and rotation, but when placed within ...
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57
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How small can you make a model realistically?
all! I have a model that I want to add to a THREE.js scene on the web, so making it as light as possible is the main goal. I'm not an expert, so I have no idea how 'small' one could make a model. ...
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223
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How to optimize super large objects for large scene rendering
we are trying to render a large solar farm.
For this we used procedural textures, pipes with textures you name it.
Each solar panel strip is about 100m / 100 yards long.
Our goal is to have a complete ...
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More time is spent on render preparation than on the actual rendering. What can I do? [closed]
I'm new to blender and I'm stuck on this giant unsolvable problem that no one seems to have any solution for.
I've modelled a quite complex scene in Blender: roads, bridges vehicles, buildings, trees ...
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423
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Do invisible polygons influence rendering time using Cycles renderer? [duplicate]
TL;DR The number of polygons has negligible impact on rendering time.
I'm having a furniture designed part by part using FreeCAD and exported as Wavefront OBJ (following Tutorial Render with Blender). ...
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59
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How to improve texture brush result
I have a couple brushes that I got off of BlenderKit. The link for the brush is this: asset_base_id:66dcf513-f78f-4030-a07a-fcfe9c6a1448 asset_type:brush. I have a cube as a test that has 49152 ...
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373
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Modelling game foliage, such as trees, bushes and grass
So I'm currently practicing my skills as a environmental artist.
The scene I am currently making will involve a lot of foliage, specifically a Hatian forest.
I have been trying various ways to make ...
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418
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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 ...
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431
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Efficient Landscape Mesh Optimization
I need to render an expansive landscape on a render target which lacks the ability to do heightmap-based displacement or mesh subdivision operations in hardware. Thus my only option is to bake the ...
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148
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Script performance issues. Applying modifiers to mesh with shape keys
I didn't write the script, I can read it, but can't do much else.
This script is used for applying subdiv to a mesh with shapekeys, while preserving the latter. However it seems to be leaking a lot of ...
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