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Questions tagged [gpu]

A graphics processing unit (GPU) is a specialized electronic circuit designed to rapidly manipulate and alter memory to accelerate the rendering or output images.

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250 views

blender doesn't open when amd gpu driver is installed [closed]

I know that Blender doesn't support AMD GPU's, but this isn't about that. Blender was working just fine, but after I installed Catalyst, Blender won't open. Why? My PC info: Win7 Intel i7 3rd gen 6 ...
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0answers
5k views

CUDA error: Launch exceeded timeout in cutCtxSynchronize()

I am trying to render my scene with my GPU (GTX 660ti) but it always fail with this error and crashes driver. Rendering blender's BMW benchmark scene works just fine, there must be something wrong ...
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0answers
1k views

Bad GTX 970 Performence [closed]

i just got my new Zotac GTX 970 and blender 2.73 but i'm worried about my cylcles results. My other card was a GTX 670 OC, so theoreticly i should achieve 50-100% faster rendering times. Sadly the ...
8
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1answer
3k views

turn on Cycles GPU render on non CUDA computers

Is there a way to turn on GPU rendering without an installed CUDA driver and without a CUDA enabled graphic card? I want to send the blend file on my render farm, all the slaves have NVidia CUDA ...
1
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0answers
2k views

GPU rendering is equal to or slower than CPU rendering [closed]

I recently bought an ASUS N550J with i.7 2.4Ghz 8GB Ram 4 GB Dedicated VRam GTX 850m When I use blender the GPU renderer only renders one tile at a time and the time taken by the GPU is more or less ...
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0answers
54 views

Cycles artifacts [duplicate]

There are artifacts visible on my render. Have you any idea? My configuration : Windows 7 64 bits Memory : 12 go Blender 2.72-27b58f0-win64 2 x GTX Titan Black Driver : 344.75 RESOLVED ! Origin ...
4
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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 ...
2
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1answer
4k views

How to enable CUDA on Ubunutu 14.04 for a GTX 970?

Yes, I've read this post already. But it didn't work. Now I'm looking for more information and ways to diagnose the problem... and perhaps find a solution. The base system is an Ubuntu machine (14.04 ...
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0answers
621 views

Why my GPU rendering time is more than CPU rendering time?

I have recently installed Nvidea geForce GT610 graphic card (CUDA enabled) to enhance the rendering time for a simple scene under cycles. To my surprise I found the rendering time with GPU setting is ...
1
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0answers
320 views

Considering buying a new computer, how much of blender is CPU related vs GPU related? [duplicate]

I'll admit, I know nothing about Blender. Hadn't even heard the name until last week. A client of mine is looking to replace a 2010 Mac Pro with something more recent. I told them that I'd do some ...
11
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8answers
36k views

Cycles / CUDA Error: Out of Memory

I've been struggling a little with Cycles and my GeForce GTX 750 graphic card. Most of the time it works well, but when I try to work with scenes that have custom shaders (like a skin shader with ...
3
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1answer
698 views

How can I disable one OpenCL device

I have successfully enabled the experimental OpenCL support and my scene (surprisingly) renders fine, without any crashes or artifacts. My setup consists of two AMD cards and an Intel CPU. Choosing ...
2
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0answers
518 views

Blender won't render on Dual / Single GTX 980 [closed]

Recently, I've finished building my new Desktop. First thing I did was to install Blender and render a complex poly old project of mine. But Blender won't render on my Dual GTX 980, not even on single ...
3
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1answer
4k views

Enable experimental features Blender 2.72

I'm using Blender 2.72 and I want to enable the experimental feature set, which supports OpenCL for my AMD/ATI graphics card (I know what the risks are of doing this). Googling it, I found a Blender ...
3
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1answer
306 views

Final rendered image is completely transparent

I am rendering in view-port mode using cycles with GPU rendering but the problem is not there: But when I am rendering a final render, it calculates everything and after some time, it gives this ...
7
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1answer
2k views

GPU Rendering but it appears CPU is being used

I chose my nvidia graphics card under computing device in user settings and saved the settings but when I render and check my task manager almost all my cpu is being used by blender. What is going on?
2
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1answer
4k views

Does Cycles GPU Rendering use Single or Double Floating Point Precision?

I am trying to choose a Graphics Card for rendering in Blender, I would like to know if Blender uses Single or Double Point Operations. I have been looking at Nvidia's GeForce and Tesla line of ...
0
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0answers
55 views

blender on linux, no gpu renderer [duplicate]

I've a problem with GPU activation in blender. I've found same problem here already, however it didn't help. I've a GeForce 750Ti graphics card with proprietary drivers installed (not from site but ...
1
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1answer
3k views

GPU/CUDA volume and SSS support

As my fedora repos are way behind and still on blender 2.69, I've gone and compiled the latest myself. Everything seems to work and is quite recent. I can even bake CPU SSS, which is great. However I ...
1
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1answer
3k views

Cuda acceleration with CUDA 1.2 [duplicate]

I've got a GeForce 330M and CUDA 1.2 as a consequence. But Blender supports only >=2.0. I read this page and they say that I have to use Cuda toolkit 5.0. BUT: the link leads to toolkit 6.0.37 => ...
3
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1answer
2k views

No CUDA option in repository version of Blender

I know there are a lot of threads concerning CUDA and GPU-rendering in Blender, but I haven't figured out yet why my installed Blender(2.70) from the repository offers no choice of the rendering-...
2
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2answers
5k views

Utilise GPU just for animation/physics, not rendering

I realise that the GPU can be used in Blender to accelerate rendering, but can the GPU be used to just perform animation/physics simulation? I'm currently using Blender to import some OBJ files, ...
85
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4answers
201k views

Enabling GPU rendering for Cycles?

I want to enable GPU rendering, but there is no option in User Preferences > System: Why is this? How can I get cycles to render using my GPU?
0
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1answer
2k views

macbook pro rendering issue [duplicate]

I have a macbook pro early 2013 model with i7 processor and nvidia m650 graphics but when i go to the settings to enable gpu rendering there is no option to select it only cpu rendering can anyone ...
3
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3answers
8k views

Is OpenCL possible within Blender either via cycles or internal?

I have the Radeon R9 280X video card and was wondering if there was anyway at all to enable GPU rendering with this card? I know Nvidia has CUDA cores and that works. That's good and all, BUT I don't ...
2
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2answers
5k views

No CUDA option in system preferences - is it my driver? [duplicate]

I have the latest version of Blender installed (2.69) on Debian stable, and in System Preferences there is no CUDA (GPU) option for compute device. The graphics card is Nvidia GeForce 430. It supports ...
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2answers
3k views

Blender CUDA Rendering [duplicate]

I am using Blender 2.66a a nVidia GT 520 and Ubuntu 13.10. I wanted to enable GPU rendering. But in the System Panel there is no 'CUDA' Option. I know that this Card supports CUDA, because I have ...
3
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1answer
8k views

ATI Radeon HD 7770 no GPU rendering? [closed]

So I don't have an option to turn on GPU rendering in settings. I only have the option for CPU rendering. Here's my specs: ATI Radeon HD 7770 1GB GDDR5 1GH AMD Phenom II 4x 960T 3GHz 4Gb DDR3 ...
19
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2answers
8k views

Blender sets Compute Device (CUDA) but doesn't use it for actual render (on EC2 GPU Instance)

I'm trying to set up some automated render servers on EC2 using their GPU instance type (g2.2xlarge). I'm running blender in the background with a python script that renders the image I want and saves ...
19
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3answers
30k views

How will multiple GPUs improve Cycles' rendering performance?

I have an NVIDIA Titan GPU and I'm able to add another card, but I wonder whether Blender will benefit from more than one GPUs? Should I do it as SLI or should I just do it as an added card? I just ...
1
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2answers
5k views

Cycles GPU render does not work

I am struggling for a week now, trying my blender to work with CUDA GPU Cyclea Rendering, did so many fresh installation, still no luck. Current situation: Fresh install of Blender 2.69 (from ...
5
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1answer
1k views

Is it possible to use two GPUs in viewport rendered preview, and not only for final render?

I have two Nvidia GPUs and they work fine in normal rendering (when I press F12, both are working). However, in viewport, when I select "Rendered" as a viewport shading mode, only one is used. Is it ...
24
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4answers
13k views

Cycles hybrid rendering

The Cycles render engine can render both on the CPU and the GPU. I often render over-night so I do not need my computer to be responsive. Is it possible to render with Cycles using both the CPU and ...
0
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1answer
5k views

Installing CUDA for Blender Cycles on Ubuntu 12.04 [closed]

Linux box (Corei7 920, 12 Gb RAM, 1TB hdd, Nvidia GTX 460) running Ubuntu 12.04. I'm enough of a noob that I've hit a wall of discouragement trying to install CUDA to take advantage of Cycles! This ...
2
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1answer
1k views

Does OSL work on the GPU?

On openshading the FAQ says: OSL only works on the CPU for now. It would be possible to port the system to GPU, but it would require a lot of work. There are no immediate plans for it. What does ...
4
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1answer
988 views

Cycles Error: Cuda failed to find version number

I am using Blender in Ubuntu with irie ppa. I've installed Nvidia-cuda-toolkit from irie and bumblebee, then I try to render using cycles but I keep getting this error in the terminal: ...
0
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1answer
7k views

What are the best graphics cards for cycles? [closed]

I'm considering having a system build solely for rendering for cycles (as kind of a single PC renderfarm). Since the GPUs would be most important here, I plan on having it build around those. I was ...
10
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1answer
14k views

How to enable GPU rendering on older Nvidia GPUs?

I have an older Nvidia graphics card that I would like to use for GPU rendering with cycles. However, I am having difficulty enabling this feature. If I open up User Preferences, I see the following: ...
9
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1answer
3k views

Cycles Subsurface shader: GPU compute and CPU compute give totally different results [duplicate]

Blender 2.67 Windows 7 Geforce gtx460 Head model with subsurface scattering and one texture Cpu render - fine, but slow. gpu render - face comes out black! (it was working at first it changed for ...
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2answers
6k views

Why is Quadro slower than GTX rendering on GPU cycles? [closed]

Will Blender Cycles have a better performance in the future with Nvidia Quadro?
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2answers
7k views

How important is a GPU for modeling?

I don't plan to be doing much cycles rendering, but I wanted to know if a GPU is still important if I'm doing high-poly modeling.
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2answers
10k views

Cycles Render not utilizing the GPU as it should

The issue I'm having with Blender is as follows: The Cycles Rendering doesn't seem to use the GPU to its maximum power, even though I've read it should to the point where Blender UI becomes ...