Crash when baking normals with Cycles from object with dupli children #54133

New Issue

Susanne H. · 2018-02-22T18:40:53+01:00

Susanne H. commented

2018-02-22 18:40:53 +01:00

System Information
OS: Arch Linux
GPU: Nvidia GeForce GT 220

Blender Version
Broken: buildbot version 2.79.2, Date: 2018-02-21, Hash: 5d5c6bb5ef
Doesn't crash, but doesn't bake either: release 2.79, Date 2017-09-11, Hash: 5bd8ac9abf

Short description of error
Trying to bake a normalmap with Cycles from a plane with duplicated children to another uv-unwrapped plane crashes Blender.

Exact steps for others to reproduce the error
Open attached blend file:

Selected: PlaneDupli, has a child DupliObject that is duplicated on the plane's faces
Active: PlaneBake, is uv-unwrapped and has a material with selected image texture to bake to

Hit bake:
Blender buildbot version segfaults and closes, see attached dupli-bake-normal.crash.txt.
Blender release 2.79 doesn't crash, but baked normal map is plain grey.

dupli-bake-normal.blend
dupli-bake-normal.crash.txt

**System Information** OS: Arch Linux GPU: Nvidia GeForce GT 220 **Blender Version** Broken: buildbot version 2.79.2, Date: 2018-02-21, Hash: 5d5c6bb5efe Doesn't crash, but doesn't bake either: release 2.79, Date 2017-09-11, Hash: 5bd8ac9abfa **Short description of error** Trying to bake a normalmap with Cycles from a plane with duplicated children to another uv-unwrapped plane crashes Blender. **Exact steps for others to reproduce the error** Open attached blend file: - Selected: PlaneDupli, has a child DupliObject that is duplicated on the plane's faces - Active: PlaneBake, is uv-unwrapped and has a material with selected image texture to bake to Hit bake: Blender buildbot version segfaults and closes, see attached dupli-bake-normal.crash.txt. Blender release 2.79 doesn't crash, but baked normal map is plain grey. [dupli-bake-normal.blend](https://archive.blender.org/developer/F2341474/dupli-bake-normal.blend) [dupli-bake-normal.crash.txt](https://archive.blender.org/developer/F2341475/dupli-bake-normal.crash.txt)

Susanne H. commented

2018-02-22 18:40:53 +01:00

Added subscriber: @sanne

Susanne H. changed title from ~~Crash when baking normals from object with dupli children~~ to Crash when baking normals with Cycles from object with dupli children

2018-02-26 17:02:06 +01:00

Ray molenkamp commented

2018-03-17 02:14:54 +01:00

Added subscriber: @LazyDodo

Ray molenkamp commented

2018-03-17 02:14:54 +01:00

can confirm on windows with latest master. looks like an out of bounds array access.

Dalai Felinto commented

2018-04-30 17:02:29 +02:00

Added subscriber: @dfelinto

Dalai Felinto commented

2018-04-30 17:02:29 +02:00

This can be isolated to P665.

Basically in the example file, the PlaneDupli object is not found in scene->objects.

This can be isolated to [P665](https://archive.blender.org/developer/P665.txt). Basically in the example file, the `PlaneDupli` object is not found in `scene->objects`.

Philipp Oeser commented

2020-01-28 13:36:43 +01:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2020-01-28 13:36:43 +01:00

I cannot reproduce the crash anymore, so that seems to be resolved.

But they are not really baking correctly [in that: resulting bake will be a blank image...].
This however seems to be the same as #43553 (Cycles dupli object baking issues)

@sanne : if you are still getting crashes, please comment again and we can always reopen in that case... as a workaround, making the instances real, selecting all of them and baking is working correctly...
Will merge this into #43553 then...

I cannot reproduce the crash anymore, so that seems to be resolved. But they are not really baking correctly [in that: resulting bake will be a blank image...]. This however seems to be the same as #43553 (Cycles dupli object baking issues) @sanne : if you are still getting crashes, please comment again and we can always reopen in that case... as a workaround, making the instances real, selecting all of them and baking is working correctly... Will merge this into #43553 then...

Philipp Oeser commented

2020-01-28 13:37:08 +01:00

Closed as duplicate of #43553

Philipp Oeser closed this issue

2020-01-28 13:37:08 +01:00

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Crash when baking normals with Cycles from object with dupli children #54133