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Displacement Method: true Crashing
Closed, ResolvedPublic

Description

System Information
Windows 7 Professional
Cpu: i5-3470
gpu: gtx 970 4gb

Blender Version
Broken: (example: 2.73 (b4d8fb5)
Worked: (unknown)

Short description of error
When using the displacement method of "True" and using a bump map in the node setup (using cpu and experimental) it crashes every time on render no matter how low or high the resolution of the mesh is.

Exact steps for others to reproduce the error
Open Blender 2.73>add a mesh>create a node setup with displacement>turn on cpu rendering> turn on experimental>enable "true" displacement method under
object data panel for your mesh> Render with either real time or f12> watch blender crash :(

Event Timeline

Mason (Mason) added a project: BF Blender.
Mason (Mason) set Type to Bug.
Mason (Mason) added a subscriber: Mason (Mason).
Mason (Mason) created this task.
Mason (Mason) raised the priority of this task from to Needs Triage by Developer.
Bastien Montagne (mont29) triaged this task as Needs Information from User priority.

Please always attach a .blend file to help us reproduce the issue.

How? just with dropbox or something?

just drag and drop it in a comment here…

Mason (Mason) added a comment.EditedJan 18 2015, 10:26 PM

Alright, here it is, when i hit render it crashes all the time. even without the subsurface on :\

Bastien Montagne (mont29) raised the priority of this task from Needs Information from User to Normal.Jan 19 2015, 1:00 PM

Confirm the crash, with debug build got:

read blend: /home/i74700deb64/Téléchargements/Bug_Report.blend
blender: /home/i74700deb64/blender/__work__/src/intern/cycles/kernel/kernel_compat_cpu.h:51: T ccl::texture<T>::fetch(int) [with T = unsigned int]: Assertion `index >= 0 && index < width' failed.
blender: /home/i74700deb64/blender/__work__/src/intern/cycles/kernel/kernel_compat_cpu.h:51: T ccl::texture<T>::fetch(int) [with T = unsigned int]: Assertion `index >= 0 && index < width' failed.
blender: /home/i74700deb64/blender/__work__/src/intern/cycles/kernel/kernel_compat_cpu.h:51: T ccl::texture<T>::fetch(int) [with T = unsigned int]: Assertion `index >= 0 && index < width' failed.
blender: /home/i74700deb64/blender/__work__/src/intern/cycles/kernel/kernel_compat_cpu.h:51: T ccl::texture<T>::fetch(int) [with T = unsigned int]: Assertion `index >= 0 && index < width' failed.
Abort

i'm not sure what all this means :\ is there some form of a fix for the issue? is it just my computer? please let me know. thanks

-Mason

The bug as been fixed a working version of blender can be found here https://builder.blender.org/download/

This fix will probably make it into 2.73a

You may have to wait for tomorrow for the fix to be implemented

@Mason (Mason) you don't have know what the code change means

so what your saying is it's been seen as a bug and will be fixed in the next build?

Yes tomorrow Build bot version will contain the fix and it might already be in there if i am looking at the build times correctly

wow, really? that's awesome! well thanks guys for sorting that out :)

does anyone know if the fix has been posted up yet? i downloaded the latest build (the page said it was updated today) but it's still crashing. anyone know if it is up?

Buildbot builds are built once a day (usually during european night), the one done this night should have the fix, the previous one probably didn’t…

The latest builds which are a1f4821 should have the fix included. I also downloaded the build and can't reproduce the crash.