Questions tagged [memory-management]

Questions related to memory consumption. This refers to both RAM (Random Access Memory) usage and hard drive space.

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Basic Cycles memory usage @98%?

I have a scene that sometimes crashes for CUDA errors (out of memory). So I put all elements on separate layers to figure out in rendered view which was the culprit. Turns out, even if I have only ...
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309 views

Memory (and large project) management [closed]

From what I've understood from other questions here, group instancing and dynamic linking are two methods for managing memory in a project that is large or complex. The latter also allows one to ...
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394 views

Is there an easy way to see what is consuming the most memory?

Is there an easy way to see what is consuming the most memory? For example: -Objects / Object data -Textures -Lighting -Particle Systems -Material duplicates -Caches -Anything else that can cause ...
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1answer
430 views

Blender using memory for no reason; Blender loading up Memory Usage. Why is that?

So there's actually 2 problems I have regarding Blender's memory usage, which probably aren't much for a regular computer but really slow work for weaker ones and can even cause crashes. So I have a ...
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2answers
283 views

Blender cycles rendering layer but keep to sum memory?

something i really don't understand! i made different layer for my render. i have 5 layers, i set for everyone: layer to render, layer to exclude and eventualy also the mask layer. if i render from ...
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2answers
141 views

Memory increasing but not adding any new geometry

So I have a model and in the top right where it says the memory usage it changes even when I dont add any type of new geometry. I can just say move a vert and let go of the mouse so it doesnt actually ...
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1answer
2k views

Limit Blender RAM usage?

So Blender started crashing whenever I bake fluid for no reason (I mean no reason, discussion here). I'm thinking maybe reducing the amount of RAM it uses could help, but I can't figure out how to ...
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1answer
476 views

“Error Writing Frame” during movie render

I'm brand new to Blender. I've made three short videos with the most editing done to them being fade ins and fade outs and added audio. Never had a problem rendering those. My new project, however, ...
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1answer
1k views

How do I see what is using Memory?

During the creation of a recent project the amount of memory used by Blender inflated to a massive(!) 11.8GB while attempting to render. This makes rendering on GPU unusable for me (no Titan X's ...
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508 views

Growing memory usage when rendering animation

I'm using Blender 2.77a with Windows 10 64 bit on a 8 GB RAM PC and AMD R9 390 graphic card with driver 16.4.1. When GPU rendering a very simple animation (350 faces, 150 frames, single PNG files) ...
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592 views

Why is there slowdown on a high poly mesh in edit mode when all faces are hidden?

I've been wondering this for years now, so I'm working on a high poly mesh and I've hidden all but 50,000 vertices, there's a fair bit of slowdown and I kind of get that but even if you hide ...
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122 views

What are the memory readouts referring to?

There are two sets of memory readouts I'm puzzled by. I need a better explanation of what they mean. One is in the Info Window and says something like Mem:119.14M(9.99M) One is with the render output ...
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What method is more efficient for making duplicate of an object: mirror it with modifier or instancing it?

I wonder what method i should use for making copies of original object, what is more memory/render efficient: mirror my object with modifies - "Array" or "Mirror" or instancing my object with Alt+D?
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231 views

How to retrieve context after a outliner.orphans_purge()

I've got a script that joins several object into one at every frame and then do several operations on the duplicated object. However, I know that when a object is deleted in blender, meshes are ...
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1answer
248 views

Cycles GPU Texture-duplicate memory Question

Lets say we have 1024x1024 PNG texture called Texture.png I Have multiple materials using the same texture, on import the textures were automaticly renamed to .001 .002 .003 etc. And Im out of GPU ...
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1answer
379 views

infinite loop / ensure_lookup_table

what this script should do is add 1-3 little cubes to each side of a specific object (torus in my case for testing). then for each cube a random face within a section of the torus gets choosen and the ...
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2answers
2k views

Clear the sequencer memory cache?

I'm doing some motion tracking, and to quickly edit things I preload the frames into the memory. However, this fills up my ram, and sometimes (e.g when I'm not working with the footage) I want to ...
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1answer
2k views

Is it possible to use a displacement map without having real geometry?

I'm currently trying out displacement maps. As I was told by some video tutorials I need to apply them as a (displacement) modifier on the mesh. Therefore, I have to subdivide the mesh to achieve more ...
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1answer
574 views

Blender does not utilize full amount of VRAM

When trying to render my scene with my GTX 970 and cycles I get a cuda error saying that I was out of memory. However according to gpu-z I only got up to using 3228MB of VRAM, and according to blender ...
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1answer
1k views

How to avoid float texture limit for GPU rendering

In developing a relatively simple scene, I noticed that detail from normal maps were not being displayed for some objects. All of the maps were generated from Substance painter as .png (16-bits max). ...
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591 views

Can Cycles CUDA utilize more than 2GB of VRAM?

I'm trying to make a render with dual Titan X's, they have 12GB of VRAM each. If I ramp the tile size up it eventually slows down seemingly due to hitting a 2GB cap? Is there a way to have the ...
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214 views

Not enough RAM for baking particles

Faced with such a problem - there is a system of particles in settings exposed saving cache to disk next to the file. Also, 400 frame animation of the object. The problem is that baking stops at 100 ...
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2answers
7k views

Why does Blender use so much memory for large textures?

Using a single 6K texture at only 227kb in size, spikes the memory usage to a crazy 144mb of memory in Blender. It was brought up in this bug report, but closed. Why can image editors (Photoshop/...
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1answer
1k 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?
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1answer
564 views

Is there any disadvantage to using smoke adaptive domain?

In the smoke simulation settings, there is an option called smoke adaptive domain. It basically (as far as I can tell) just changes the domain's size at each frame to be just big enough to fit the ...
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379 views

.blend file size much larger after OpenGL Render

I am working on a detailed dialogue scene that is 600 mb. It is a very complex scene, with each part in single layers. I know that is a very big file size, but what my machine can handle it. What ...
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1answer
1k views

How to check how much GPU memory is used by object?

I wonder if there is any way to determine how much memory object or group of objects is going to use while rendering. I was trying to follow some of recent Blender Guru's tutorials but it seems like ...
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2k views

Does Blender have a software-limited amount of RAM it can use?

The other way to ask this question is, are Blender's memory limitations solely hardware related? Or, is there a point at which Blender will either crash or fail to use additional memory, even though ...
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377 views

render 1 Frame of Big Buck Bunny fails

Im trying to render a single frame of BigBuckBunny with blender 2.72b on linux. I downloaded all the files needed (2d blender files + http://graphicall.org/bbb/index.php ) Now I want to render a ...
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1answer
3k views

How can I save memory in cycles when I have a lot of duplicates?

I have a scene I'm working on which requires a large amount of duplicates which I was planning to use an array for. I recently heard if you use Shift+D instead of Alt+D and wondered if there was a ...
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1answer
690 views

Which is more efficient? duplifaces, particles, or group instances?

Particles give more controls for doing things like randomizing rotation of instances, but duplifaces and group instances allow for rotation and scale of individual instances. For something like ...
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1answer
1k views

game-engine : error totblock : 1. Memory Leak?

I've got this error when running the blender game-engine: Error Totblock: 1 (The scene is running, but very slow, and this message appears a the end) Apparently, ...
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1answer
3k views

Why should texture resolutions be powers of 2?

It's often said that texture dimensions should be square powers of two (512x512, 1024x1024, 2048x2048...), but what is the purpose of this really? I've given this advice myself and do it whenever I ...
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1answer
3k views

Import large model file into Blender

I have a 530 MB .ply mesh file that I am trying to import into a Blender project. However since the file is so large, Blender freezes up whenever I try to import it. Is there a way to work around this?...
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2answers
890 views

Maximum number of materials that can be added in a scene?

I have very large number of planes in my scene and each needs to be assigned a color, and to do that, I am assigning a material to each plane. Blender is allowing 2^15, i.e. 32768 materials. But the ...
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1answer
622 views

Rendering a large number of unique objects

I've got a script which imports a bunch of hi-resolution models onto a grid. It gives me this: It's currently got 35 objects (81924 vertices per object), but I'd like to rotate the camera toward the ...
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3answers
18k views

How can I tell if Blender is using all 64 GB of RAM?

I have 64GB of RAM on my computer and I'm trying to check if Blender is using all that it can. I still get viewport slowdown at times when working with complex objects. I know there are many ...
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1answer
2k views

Troubleshooting Blender's Memory Use (Memory Statistics)

I've got a model I've been working on for a few weeks here. The file itself is 2.1Mb and there are no textures used. Although the full model is 3 million polygons, it's all subdivision and mirroring ...
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2answers
10k views

Best settings to reduce cycles memory consumption

I'm trying to render a very complex scene with blender and it seems to be using too much memory. I've already tried using tile size as a multiple of total resolution and spatial bvh splits. Can ...
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1answer
2k views

How to efficiently instantiate object with memory-hungry modifiers?

Using Alt + D to duplicate light meshes with heavy modifiers (like a leaf with a particle instance modifier or a trunk with a subdivision modifier) can lead to huge memory usage. Because only the base ...
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2answers
1k views

Too much Memory Usage?

I am baking a simulation which is taking up roughly 15 GB of memory, is this normal? I am baking full smoke simulation with high resolution and high definition.
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2k views

What is the most computationally efficient way to make ripples?

I know you can use Dynamic Paint as well as Fluid Simulation with Force Fields to make ripples. I'm sure there are other ways as well. Which way is the least memory and processor intensive of these?