Cycles Rendering Tiles Indicator Limited to 16 #47132

New Issue

Pavol Klacansky · 2016-01-07T01:28:12+01:00

Pavol Klacansky commented

2016-01-07 01:28:12 +01:00

System Information
openSuse 13.1; nvidia GTX 750

Blender Version
Broken: 2.76b
Worked: (optional)

Short description of error
When tiled rendering is used with cycles (blender render is fine) the orange indicators of the individual tiles are limited to 16.

Exact steps for others to reproduce the error
The default blend file works, only difference is setting up samples to 20k or something so it does not immediately finish rendering in Cycles. All other settings are default.
And you need probably more than 16 cores/threads,

**System Information** openSuse 13.1; nvidia GTX 750 **Blender Version** Broken: 2.76b Worked: (optional) **Short description of error** When tiled rendering is used with cycles (blender render is fine) the orange indicators of the individual tiles are limited to 16. **Exact steps for others to reproduce the error** The default blend file works, only difference is setting up samples to 20k or something so it does not immediately finish rendering in Cycles. All other settings are default. And you need probably more than 16 cores/threads,

Pavol Klacansky commented

2016-01-07 01:28:12 +01:00

Changed status to: 'Open'

Pavol Klacansky commented

2016-01-07 01:28:12 +01:00

Added subscriber: @pavolzetor

Pavol Klacansky commented

2016-01-07 01:31:11 +01:00

Since I do not know how to attach an image within xmonad (drag & drop), here is a link to screenshot. Also, blender crashes a lot on that many threads.

http://sci.utah.edu/~klacansky/img/blender_144thread.png

Since I do not know how to attach an image within xmonad (drag & drop), here is a link to screenshot. Also, blender crashes a lot on that many threads. http://sci.utah.edu/~klacansky/img/blender_144thread.png

Thomas Dinges commented

2016-01-07 01:42:30 +01:00

Added subscriber: @ThomasDinges

Thomas Dinges commented

2016-01-07 01:42:30 +01:00

I cannot confirm this. Setting threads manually to e.g. 64, results in 64 orange tiles.

Sergey Sharybin commented

2016-01-07 15:52:56 +01:00

Added subscriber: @Sergey

Sergey Sharybin commented

2016-01-07 15:52:56 +01:00

@ThomasDinges, not being able to reproduce the issue does not mean report is incomplete.

@pavolzetor, some questions:

Does it happen when you run blender --factory-startup ?
Does it happen with Blender Internal rendering?
Does using blender-softwaregl make any different to the behavior?

@ThomasDinges, not being able to reproduce the issue does not mean report is incomplete. @pavolzetor, some questions: - Does it happen when you run `blender --factory-startup` ? - Does it happen with Blender Internal rendering? - Does using `blender-softwaregl` make any different to the behavior?

Pavol Klacansky commented

2016-01-07 18:07:29 +01:00

no (although I can't set more than 64 threads, but it still start rendering 144 tiles - same us number of available threads)
no
no

This is the blend file I am using.
http://sci.utah.edu/~klacansky/data/gto67_mod_pt.blend

- no (although I can't set more than 64 threads, but it still start rendering 144 tiles - same us number of available threads) - no - no This is the blend file I am using. http://sci.utah.edu/~klacansky/data/gto67_mod_pt.blend

Bastien Montagne commented

2016-01-15 11:11:58 +01:00

Added subscriber: @mont29

Bastien Montagne commented

2016-01-15 11:11:58 +01:00

So what’s the status here? If issue does not happen with --factory-settings then it’s just an addon doing stupid things probably…

So what’s the status here? If issue does not happen with `--factory-settings` then it’s just an addon doing stupid things probably…

Sergey Sharybin was assigned by Bastien Montagne

2016-01-22 16:16:20 +01:00

Thomas Dinges commented

2016-01-22 18:00:23 +01:00

I cannot imagine that there is a bug in Cycles itself here...

blender-admin commented

2016-01-23 21:31:36 +01:00

This issue was referenced by 398baef6c8

This issue was referenced by 398baef6c830fad7ec2ffb75801713775c348f7c

Sergey Sharybin commented

2016-01-23 21:52:39 +01:00

Changed status from 'Open' to: 'Resolved'

Sergey Sharybin closed this issue

2016-01-23 21:52:39 +01:00

Peter Boos commented

2016-01-24 02:22:41 +01:00

Added subscriber: @PeterBoos

Peter Boos commented

2016-01-24 02:22:41 +01:00

if there are more threads active then there are cores then code execution might not be ideal, perhaps tuning on parallelism ea the tasker might solve it. (i've seen this in other parralel code that wasnt optimal, but i'm into the dark of how blender deals with it)

merely an advice for parallel coding. *

if there are more threads active then there are cores then code execution might not be ideal, perhaps tuning on parallelism ea the tasker might solve it. (i've seen this in other parralel code that wasnt optimal, but i'm into the dark of how blender deals with it) * merely an advice for parallel coding. *

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Cycles Rendering Tiles Indicator Limited to 16 #47132