cycles renders extremely slow #51281

New Issue

abraar · 2017-04-21T14:33:21+02:00

abraar commented

2017-04-21 14:33:21 +02:00

system info
intel i7-7500u
ram: 8 gb
64 bit

CPU render only

Blender Version
2.78c (cycles)

Short description of error
my file has suddenly start to render extremely slow. this happened before few weeks, before that if was rendering perfectly fine. can anyone help me to fix this please.

Exact steps for others to reproduce the error
Based on a (as simple as possible) attached .blend file with minimum amount of steps
render scene P DRIVE.blend

**system info** intel i7-7500u ram: 8 gb 64 bit CPU render only **Blender Version** 2.78c (cycles) **Short description of error** my file has suddenly start to render extremely slow. this happened before few weeks, before that if was rendering perfectly fine. can anyone help me to fix this please. **Exact steps for others to reproduce the error** Based on a (as simple as possible) attached .blend file with minimum amount of steps [render scene P DRIVE.blend](https://archive.blender.org/developer/F564343/render_scene_P_DRIVE.blend)

abraar commented

2017-04-21 14:33:21 +02:00

Changed status to: 'Open'

abraar commented

2017-04-21 14:33:21 +02:00

Added subscriber: @abraar04

Sergey Sharybin commented

2017-04-21 14:58:09 +02:00

Added subscriber: @Sergey

Sergey Sharybin commented

2017-04-21 14:58:09 +02:00

There is definitely lack of information here.

What happened in this few weeks? Is there still some older blender version which renders fast?

Also, i do see you have enabled Square Samples, with render samples set to 300. This makes it overall 90000 AA samples for final render. This i don't think it intended.

So maybe things are as simple as Square Samples enabled by accident?

There is definitely lack of information here. What happened in this few weeks? Is there still some older blender version which renders fast? Also, i do see you have enabled Square Samples, with render samples set to 300. This makes it overall 90000 AA samples for final render. This i don't think it intended. So maybe things are as simple as Square Samples enabled by accident?

abraar commented

2017-04-21 15:05:24 +02:00

@Sergey no this is not the same file . my actual file is quite big and has a lot of objects. i tried to remove objects which are not gonna be visible in the final render. and thanks a lot i have disabled square sampling and it works perfectly fine now. you are life saver! thank you.

Sergey Sharybin commented

2017-04-21 16:46:17 +02:00

Changed status from 'Open' to: 'Resolved'

Sergey Sharybin closed this issue

2017-04-21 16:46:17 +02:00

Sergey Sharybin self-assigned this 2017-04-21 16:46:17 +02:00

Sergey Sharybin commented

2017-04-21 16:46:17 +02:00

Guess we can close the report.

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cycles renders extremely slow #51281