[ Help ]Rendering the cube more than 5 mn?

Blender Courses Talk
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1

In the Lecture, at 3.00mn the teacher make the first render with the cube and it takes 1,02 sec.
When i try it, after 5 mn it was at 0%, and i see a message that say loading kernel …something, it may take few minutes the first time.
I cancel the rendering and now, after more than 15 mn, it’s in canceling…
i used the GPU Compute
Normal?
what’s wrong?
my spec:

MacBook Pro
CPU: 2,5 GHz Intel Core i7
16 GB 1600 MHz DDR3
AMD Radeon R9 M370X 2048 MB
Intel Iris Pro 1536 MB

it’s still in canceling…:fearful:

894×559 105 KB

2

UPDATE
Forced Blender to quit.
Retry
For the cube, with CPU, both 64x64 and 512x512, very quickly.
Retry with GPU, with 512x512

After 5 min. i have this:

908×550 100 KB

3

Probably this are the answer:

https://discussions.apple.com/thread/7082549?start=0&tstart=0

4

CPU: 2,5 GHz Intel Core i7
GPU: AMD Radeon R9 M370X 2048 MB
Intel Iris Pro 1536 MB
OS: OSX 10 Sierra

Time: 4 min 16 sec (CPU) 64x64
GPU test crash blender only with
the rendering of a cube in Cycles render
With the Blender render work.

5

I think the issue might be with the graphic drivers for Apple from what I saw in the links you provided from when they were posted.

I would suggest to try upgrade your graphics driver and make sure Blender is up to date. I am currently using 2.78c with their newest update. Though I do run on Windows 10 with an Nvidia GTX 1070.

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Try lowering the GPU render resolution from 512x512 to 128x128.

It would be safe to say that if the updating does not work that CPU rendering is going to be your option for now until there is better compatibility between Blender, AMD, and Apple.

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I know there are more knowledgeable Mac users out there that should be able to answer this and probably fix it. But that’s the most I can think of at the moment.

Good luck~

6

Got your fix dude. I hope… I have almost the same computer and had the same issue. My card is a NIVIDIA but it may be the same problem.

Here’s the fix

  1. Download/install the latest CUDA driver on your MAC. There is actually a specific section in the lectures where he shows you how to do this and test it.
  2. Here’s the major point: In User Preferences select CUDA NOT the OpenCL option. Your GPU render will work fine with CUDA selected but will crash Blender like you described if you have OpenCL selected.

That’s the fix and you will be fine.

THAT SAID… I have NO IDEA why it crashes with OpenCL selected particularly as it seems to use both the Iris and Nividia options in OpenCL as opposed to just the Nividia with CUDA. If anyone else has any input, feel free to pipe in.