Branched Path Tracing crashes openGL driver #40730

New Issue

Jaroslav Novotny · 2014-06-20T15:36:19+02:00

Jaroslav Novotny commented

2014-06-20 15:36:19 +02:00

System Information
win7
tested on 4 PCs:

i7 4770K + GeForceTitanBlack 6GB (pc no.1)
i7 4820 + GeForce 680GTX 4GB (pc no.2 + 3 + 4)

Blender Version
Broken: 4.70a f93bc76 + 2.71 b49e6d0

Short description of error
OpenGL driver is crashing on multiple pc configurations with different nvidia drivers(tested with 337.88, 335.23, 331.82). The openGL error messages system gives differ on each computer(sometimes its only error code 3, sometimes its code 7 and 3 together or 2 messages with code 3). In the blender test release b49e6d0 4 diffuse and glossy samles are enough to produce error, in 2.70a it crashes at 64 samples in both diffuse and glossy.

On a single pc openGL driver does not crash, but its hard to say why. All other PCs with same driver, hardware and blender release crashes.

The other thing not working perfectly is stopping the branched path render, it makes the system unresponsive and its hard to stop. When rendering on CPU the system is more responsive, but clicking the X "stop_job_button" does not end it immediately, the tiles in progress need to be rendered and after then it stops.

Exact steps for others to reproduce the error
Open attached BranchedPathTracingCrash.blend file, render on gpu (in 2.70a set diffuse and glosy samples to 64). The driver should crash with message . Lower samples does not produce crash, sometimes its needed to increase those numbers.

**System Information** win7 tested on 4 PCs: - i7 4770K + GeForceTitanBlack 6GB (pc no.1) - i7 4820 + GeForce 680GTX 4GB (pc no.2 + 3 + 4) **Blender Version** Broken: 4.70a f93bc76 + 2.71 b49e6d0 **Short description of error** OpenGL driver is crashing on multiple pc configurations with different nvidia drivers(tested with 337.88, 335.23, 331.82). The openGL error messages system gives differ on each computer(sometimes its only error code 3, sometimes its code 7 and 3 together or 2 messages with code 3). In the blender test release b49e6d0 4 diffuse and glossy samles are enough to produce error, in 2.70a it crashes at 64 samples in both diffuse and glossy. On a single pc openGL driver does not crash, but its hard to say why. All other PCs with same driver, hardware and blender release crashes. The other thing not working perfectly is stopping the branched path render, it makes the system unresponsive and its hard to stop. When rendering on CPU the system is more responsive, but clicking the X "stop_job_button" does not end it immediately, the tiles in progress need to be rendered and after then it stops. **Exact steps for others to reproduce the error** Open attached [BranchedPathTracingCrash.blend](https://archive.blender.org/developer/F94967/BranchedPathTracingCrash.blend) file, render on gpu (in 2.70a set diffuse and glosy samples to 64). The driver should crash with message ![blend_render_error.png](https://archive.blender.org/developer/F94969/blend_render_error.png). Lower samples does not produce crash, sometimes its needed to increase those numbers.

Jaroslav Novotny commented

2014-06-20 15:36:19 +02:00

Changed status to: 'Open'

Jaroslav Novotny commented

2014-06-20 15:36:19 +02:00

Added subscriber: @jerryno

Thomas Dinges commented

2014-06-20 16:08:59 +02:00

Changed status from 'Open' to: 'Archived'

Thomas Dinges closed this issue

2014-06-20 16:08:59 +02:00

Thomas Dinges self-assigned this 2014-06-20 16:08:59 +02:00

Thomas Dinges commented

2014-06-20 16:08:59 +02:00

Hi,
this is not a bug in Cycles, but a Windows - GPU Timeout. It's documented in the Cycles manual: http://wiki.blender.org/index.php/Doc:2.6/Manual/Render/Cycles/GPU_Rendering See the point "The NVIDIA OpenGL driver lost connection with the display driver".

Hi, this is not a bug in Cycles, but a Windows - GPU Timeout. It's documented in the Cycles manual: http://wiki.blender.org/index.php/Doc:2.6/Manual/Render/Cycles/GPU_Rendering See the point "The NVIDIA OpenGL driver lost connection with the display driver".

Sign in to join this conversation.

No Label

Download

What's New

Blender Studio

Manual

Developers Blog

Documentation

Benchmark

Blender Conference

Development Fund

One-time Donations

Branched Path Tracing crashes openGL driver #40730