Questions tagged [opencl]

Open Computing Language (OpenCL) is a framework for writing programs that execute across heterogeneous platforms consisting of central processing units (CPUs), graphics processing units (GPUs), digital signal processors (DSPs), field-programmable gate arrays (FPGAs) and other processors.

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OpenCL GPU rendering with AMD Carrizo?

I just got a new laptop that said it had the AMD Radeon R7 mobile graphics in it. Ubuntu recognizes it as "AMD Carrizo", and Blender 2.79 doesn't have the "OpenCL" GPU rendering option in the System ...
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431 views

OpenCL build failed, failed loading render kernel, isn't supported by clang

I have problem. I want to use GPU compute rendering, but when I change the userpreference cycles compute device to my gpu (OpenCL), blender cannot do rendering and shows that failed loading render ...
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383 views

OpenCL won't work for cycles, Mac

I just started usuing cycles render on a Mac, and Was told GPU rendering is much faster. The only problem is that the GPU rendering never happens it just makes a light grey and dark grey checker board,...
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851 views

Cycles OpenCL on a OS X?

I'm trying to get Blender working with OpenCL on a Mac but I get errors during the run (it tries to do compilation first and that fails).
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48 views

Can I render on both CUDA and OpenCL?

I have a vega 56 and a gtx 1060 both render just fine on their own but i would love to use them in unison if at all possible otherwise i will have to figure out how to sell my 1060 and buy an RX 590. ...
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215 views

Blender on Linux: Dual-AMD-GPUs previously not found (single works, though); now working fine

I'm just trying to set up my workstation for Blender and got caught by a weird problem: Installing just a single GPU (AMD Radeon RX Vega 64) in the machine works fine with Blender. The GPU shows ...
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687 views

Blender 2.79 Cycles OpenCL RX Vega GPU extremely slow. (Ubuntu 18.04)

I am running Ubuntu 18.04 on a fairly powerful PC (Ryzen 2700x and Vega64) I finally managed to get OpenCL to work at all with ROCm-rehl drivers. When I render the default cube scene CPU rendering ...
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173 views

Does cycles or prorender use combined Ryzen 2700 & Vega 56 capabilities?

Ryzen 7 and Vega 56 uses OpenCl. Does cycles or amd prorender uses those opencl capabilities combined or do you need to choose gpu or cpu rendering. I amasking that because i saw in benchmarking ...
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913 views

Blender 2.79 does not detect GPU AMD RX580

I've bought AMD RX580 recently and it seems Blender can't detect it, it has "none" in cycles compute device in system settings. I have ubuntu 18.04 installed, and already installed latest AMD linux ...
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768 views

My Blender 2.79 crashes on Startup without loading the scene

I've had a problem with Blender for about a week since installing it where every time I start up the program, it launches the output window, then begins to draw the window, but it doesn't create any ...
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1k views

How can I get my AMD GPU to work in Linux under OpenCL?

OS: Arch Linux kernel 4.7.6-1 GPU Driver: AMDGPU 1.1.2-1 Xorg version: 1.18.4-1 Blender version: 2.78.a-1 (latest in official Arch repo) I'm 100% sure Xorg is loading the GPU driver based on the ...
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1k views

Cycles GPU Compute won't render

I tried to enable gpu compute with opencl and it says "Loading render kernels this may take a few minutes the first time" when i click render and it just says that forever and never even renders and i ...
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1k views

Enable OpenCL GPU Rendering on Ubuntu 16.04 with Intel Skylake GT2?

I know this is experimental technology and I shouldn't get my hopes up; I installed both the proprietary Intel OpenCL SDK (2016) and open-source Beignet (they don't seem to be interfering with one ...
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674 views

Cycles OpenCL GPU Render Gray Overlay/Mist?

Dear Blender Community, Several weeks ago I suddenly experienced difficulty when rendering on my GPU. Whereas before the renders looked just like the CPU renders as they are supposed to, my GPU ...
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275 views

CPU and OpenCL gives 2 different rendering result?

the 1st pic is made by cpu, the 2nd opencl. How do I make OPENCL work the same as CPU?
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296 views

Ugly stripes when rendering with GPU, even with high samples

I came across a problem which I couldn't find any solution through google. With my new GPU (R9 390X) I get when rendering with it, distinct stripes, especially in darker areas. Does anyone know the ...
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576 views

Horizontal Render Artifacts When Using OpenCl

I've just started rendering with my new AMD GPU and realized that I'm getting some strange horizontal line artifacts. As you can see, in the box on the right, there are strange blue lines, and all ...
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631 views

Cycles on AMD takes abnormally long time to render

Since I upgraded to the latest version of OS X and Blender 2.76, I was looking forward to finally being able to use GPU acceleration with my AMD card. Instead, using the BMW benchmark scene, it is now ...
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1answer
81 views

Good AMD GC but only find “SCRAPPER” where there should be a compute drop down menu

I have been trying to get my AMD Radeon card to finally be recognized by Blender. It was working beautifully then I installed the Sensei Format and all of a sudden I lose my ability to render with GPU....
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63 views

Are there any updated OpenCL vs CUDA benchmarks?

I'm about to retire my old PC and buy a new one. The major uses would be gaming and blender. So when it comes to buying a GPU, I'm taking those two things in consideration. Cycles on the GPU uses CUDA ...
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41 views

Sculpting bad performance

I have an AMD Radeon RX Vega⁶⁴ graphics card and is experiencing slow performance while sculpting. Is there something wrong with the graphics card, or a bug in Blender? This just seems really odd, ...
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92 views

Eevee changing GPU selection does not work?

I am trying to render using the Blender 2.8 Eevee engine with different GPUs in different instances so that I can speed up my render times. For example, 3 open instances where two are rendering on my ...
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26 views

Open CL error: CL_INVALID_ARG_SIZE

I'm relatively new to blender - I'm using version 2.79. I have been trying to render an animation using GPU with a Hilbert Spiral of 512x512. I keep getting an "Open CL error: CL_INVALID_ARG_SIZE" ...
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64 views

OpenCL option not available in Blender 2.79b running on Ubuntu 18.04

I'm trying to enable GPU rendering with blender. But, I cannot see the option for opencl. Below is my hardware description: How can I add the option for OpenCL?
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441 views

How do I get OpenCL with AMD RX 560 for Blender rendering? (GNU/Linux)

I'm sorry if this duplicate question is not allowed on stack exchange. I posted this in ask Ubuntu originally, but I figured I'd get a answer here. I'm trying to get back into Bender. The last time ...
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1answer
726 views

Does Blender support the new AMD Vega M GL graphics card? If so, how must it be configured in order to work effectively?

This is my very first post, so please forgive and correct me if I do something incorrectly. I recently purchased the new (as of May, 2018) Dell XPS 15 2-in-1 laptop which has the new Intel Core i7 ...
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193 views

Cycles rendering with OpenCL keeps freezing

I've been using my AMD Graphics card for GPU rendering in Cycles for a while. I've never had problems, everything worked fine for months, until recently. When rendering with GPU, I can clearly see ...
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212 views

Cycles gpu rendering opencl freezing

I have been learning blender for the past month and today i have found out how to enable GPU rendering but when switching from CPU to GPU compute my computer freezes. here are my specs: CPU: Intel ...
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1k views

Rendering Blender 2.79 on MAC PRO (late 2013)

I have been not that active with Blender lately, but I am trying to catch up with current development by installing Blender 2.79. Reading about all the improvements related to OpenCL I wonder what is ...
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166 views

OpenCL version missing from User Prefs

As seen in the picture, I have no option to select OpenCL as a solution to render with. I'm using Blender 2.78.5 (the version where we do have the Principled BSDF shader). I'm on AMD Radeon HD 8730M ...
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264 views

Using GPU (need OpenCL 1.1)

I just started learning blender and I have NVIDIA GeForce GT 650M. I am trying to use GPU in blender. I am not sure how all this works yet, but I believe I need to install OpenCL 1.1. I am wondering ...
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289 views

Problems with latest versions (2.77-2.78) on AMD GPUs

Sometimes I have to use a cheapo laptop I bought back in summer but it was still cool, because I could combine both the APU and discrete AMD graphics to render 2-3 times faster than the quadcore CPU ...
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113 views

Query on OpenCL 2.0 support

Does the Blender-2.76 support any of the OpenCL 2.0 features like SVM, C11, atomics, etc … ? I would like to know whether you plan to support the 2.0 in upcoming releases? Thanks, Srinivas
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1answer
393 views

Is radeon r4 compatible with Blender 2.8?

Hey everybody I was just wondering would AMD radeon r4 be compatible for openCL? Since it is integrated, openGL is out of the question. Specifically do you know what GCN architecture the r4 is? Any ...