Hot answers tagged

5 votes
Accepted

Render time increased to 2 hours just by adding color

just change the time limit value to e.g. 5 secs (or how long you want to wait) Yes, this will decrease your quality. But for impatient people this settings is perfect. Also you can try to change to ...
user avatar
  • 38.8k
4 votes
Accepted

Copy channels from one image to another using GPU

This is not a direct answer to the question since it doesn't leverage the GPU module. However you can get decent results with numpy which is the closest you'll get to using the efficient underlying C ...
user avatar
  • 25.8k
3 votes

CUDA ERROR - illegal adress when rendering

I had the same problem. It always appeared when PC woke up from sleep mode. Restarting the app worked, but was annoying. I found the solution in this thread and it worked perfect for me. Now there is ...
user avatar
  • 31
3 votes

Multi tile rendering in cycles X

Disable Tiling. It no longer gives speed advantages actualy it will be slower (exept in special cases - this one for example). It is in since it can help if you run into memory Issues. With CyclesX ...
user avatar
  • 1,261
3 votes

Rendering on command-line with GPU?

After updating to Blender 3.1.0 the script that Robert posted stopped working for me and threw the error ...
user avatar
3 votes
Accepted

How to make rounded corners for 2d rectangle with a custom shader?

It works, but you need to find a way to do the Anti-Aliasing ...
user avatar
  • 2,963
2 votes
Accepted

How to load an image from images directory in GPU module?

You can use BlendDataImages.load() to load and assign the image in one go: ...
user avatar
  • 11.1k
2 votes
Accepted

With multiple GPUs, can we control which GPU Eeevee uses to render?

This is a limitation of EEVEE because EEVEE is a render engine built using OpenGL and OpenGL does not support the ability to specify which GPU(s) to use for rendering. Depending on your OS, driver ...
user avatar
2 votes
Accepted

My VGA is not displayed in the section Cycles Render - HIP

You GPU doesn't meet the minimum requirements. Please always consult the manual for up to date system requirements. In the message dialog it states Requires discrete AMD GPU with RDNA architecture ...
user avatar
2 votes

Using two different GPUs for display and rendering

In that case, You'd have your monitor plugged into the 3060 and the Optix render device set to the 3090. (No CPU or other GPU. 90% of the time, adding the CPU will slow down your render.) I assume you'...
user avatar
  • 21
2 votes

Why does EEVEE use so much CPU processing power?

While the rendering itself is indeed only using the GPU because of it being an OpenGL rendering, it is wrong to assume that your CPU isn't involved by Blender in the entire process. CPU power is ...
user avatar
  • 8,619
2 votes

Blender 3.1.2 M1 chip- Metal- GPU enabled- cycles on but NO CAUSTIC checkbox

Caustics was in the 3.1 Alpha for Metal but did not make it into the final 3.1 release: https://developer.blender.org/D13533#381586
user avatar
2 votes

Does Blender run on ARM-based processors

Blender has had an official Apple ARM port since a year ago (April 2021) and you can find daily builds and official releases on the Foundation's web site; as well as various Linux arm packages on ...
user avatar
2 votes

Draw a cube using batch_for_shader

I was able to get it working by modifying a different example from the page. I had actually tried this one previously, but I must have mistyped something because this time it worked. The working code ...
user avatar
2 votes

Render time increased to 2 hours just by adding color

I assume you are using 3.1 for native metal support. Try enabling Experimental Feature Set in Cycles. I think this will let you choose your render device in preferences.
user avatar
1 vote
Accepted

How can I make a 2d gpu polygon draggable?

...
user avatar
  • 2,963
1 vote

Rendering with Cycles with GPU, use tiles or not use tiles?

Cycles before Blender 3.0: tiles. starting at 3.0: (cycles x) no tiles. GPU: bigger is better but it depends on the gpu. there’s a addon that computes the best tile size included in Blender: auto tile ...
user avatar
  • 536
1 vote

Which of these 2 Video Cards are better for Blender?

From what I can tell using userbenchmark, the T400 blows the GT 730 out of the water. And that makes sense, it’s much newer and also designed for workbench use. For that reason I would recommend you ...
user avatar
  • 121
1 vote
Accepted

Dual GPU doesn't speed up rendering in Cycles

As explained on rendering - No Auto Tile Size in Blender 3.0 - Blender Stack Exchange: Blender 3.0 Cycles rendering works significantly different from previous versions. Especially when it comes to ...
user avatar
  • 8,619
1 vote

Eevee Intel integrated graphics GPU

The answer is a resounding YES! Eevee is the way to go with Intel GPUs. Sad that I can't use Cycles, but it isn't the end of the world. When testing I figured out that while rendering with eevee, the ...
user avatar
  • 11
1 vote
Accepted

Why are there 2 GPU options on my M1 MAX?

The first option is whether or not to use the Metal GPU on the M1. The second option is whether to use the CPU on the M1. As far as I know, the preliminary support from Apple works with both. Edit in ...
user avatar
1 vote

What will happen when Metal is a supported render device?

One thing that's been made clear by watching the Blender youtube channel livestreams is that it's heavily dependent on the level of support and assistance offered by the company. For example, cycles ...
user avatar
1 vote

Blender Optix doesn't work with my RTX 2070 (worked before)

If particular version of drivers does not work, simply don't use it. Use a previous driver version that worked. You can also try the "Game Ready" version. You should be able to find previous ...
user avatar
1 vote

With multiple GPUs, can we control which GPU Eeevee uses to render?

Given that this isn't functionality native to Blender (due to OpenGL limitations, and Eevee being written in OpenGL, per @MartyFouts answer), I started looking for workarounds. My initial thought was ...
user avatar
  • 1,182
1 vote

No Compatible GPUs RTX 3080 Windows 10

Wipe Out my windows and get a clean and fresh installation on Windows. update with the latest Nvidia Drivers, and OptiX drivers and voilaaa problem solved. The Optix option now can be selected in the ...
user avatar
1 vote

Why can't I switch to CUDA?

OK, if anyone have the same problem: the anwser was simple. I just didn't have NVIDIA studio drivers.
user avatar
  • 47
1 vote

Blender has a problem with my GPU

From Blender Manual HIP is enabled for GPU rendering with AMD graphics cards on Windows. Blender supports GPU rendering on discrete graphics cards with the AMD RDNA architecture or newer and AMD ...
user avatar
1 vote

CUDA ERROR - illegal adress when rendering

Overclocking NVidia GPU's can cause CUDA errors. I encountered this same issue with an Nvidia RTX 3070 GPU on both Blender 3.0 and 3.1, stable releases. Removing GPU overclocking, in my case with the ...
user avatar

Only top scored, non community-wiki answers of a minimum length are eligible