.abc Loads On Ubuntu Fails To Load On Windows 7 #53839
Labels
No Label
Interest
Alembic
Interest
Animation & Rigging
Interest
Asset Browser
Interest
Asset Browser Project Overview
Interest
Audio
Interest
Automated Testing
Interest
Blender Asset Bundle
Interest
BlendFile
Interest
Collada
Interest
Compatibility
Interest
Compositing
Interest
Core
Interest
Cycles
Interest
Dependency Graph
Interest
Development Management
Interest
EEVEE
Interest
EEVEE & Viewport
Interest
Freestyle
Interest
Geometry Nodes
Interest
Grease Pencil
Interest
ID Management
Interest
Images & Movies
Interest
Import Export
Interest
Line Art
Interest
Masking
Interest
Metal
Interest
Modeling
Interest
Modifiers
Interest
Motion Tracking
Interest
Nodes & Physics
Interest
OpenGL
Interest
Overlay
Interest
Overrides
Interest
Performance
Interest
Physics
Interest
Pipeline, Assets & IO
Interest
Platforms, Builds & Tests
Interest
Python API
Interest
Render & Cycles
Interest
Render Pipeline
Interest
Sculpt, Paint & Texture
Interest
Text Editor
Interest
Translations
Interest
Triaging
Interest
Undo
Interest
USD
Interest
User Interface
Interest
UV Editing
Interest
VFX & Video
Interest
Video Sequencer
Interest
Virtual Reality
Interest
Vulkan
Interest
Wayland
Interest
Workbench
Interest: X11
Legacy
Blender 2.8 Project
Legacy
Milestone 1: Basic, Local Asset Browser
Legacy
OpenGL Error
Meta
Good First Issue
Meta
Papercut
Meta
Retrospective
Meta
Security
Module
Animation & Rigging
Module
Core
Module
Development Management
Module
EEVEE & Viewport
Module
Grease Pencil
Module
Modeling
Module
Nodes & Physics
Module
Pipeline, Assets & IO
Module
Platforms, Builds & Tests
Module
Python API
Module
Render & Cycles
Module
Sculpt, Paint & Texture
Module
Triaging
Module
User Interface
Module
VFX & Video
Platform
FreeBSD
Platform
Linux
Platform
macOS
Platform
Windows
Priority
High
Priority
Low
Priority
Normal
Priority
Unbreak Now!
Status
Archived
Status
Confirmed
Status
Duplicate
Status
Needs Info from Developers
Status
Needs Information from User
Status
Needs Triage
Status
Resolved
Type
Bug
Type
Design
Type
Known Issue
Type
Patch
Type
Report
Type
To Do
No Milestone
No project
No Assignees
5 Participants
Notifications
Due Date
No due date set.
Dependencies
No dependencies set.
Reference: blender/blender#53839
Loading…
Reference in New Issue
No description provided.
Delete Branch "%!s(<nil>)"
Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?
System Information
Windows 7 and Ubuntu 17.10
nVidia 660 and nVidia 1070
Operating system and graphics card
Blender Version
2.79
Worked: (optional)
Short description of error
On Ubuntu, I exported a nurbs circle from Houdini Indie using the Alembic ROP.
On same Ubuntu I run Blender 2.79 and import the .abc file.
It works as shown.
I try to import the same .abc file using Blender 2.79 on Windows 7 and a console error is produced. The file is not loaded.
Added subscriber: @AtomP
Added subscriber: @lichtwerk
is this exported as HDF5?
afaik, blender releases build without it?
WITH_ALEMBIC_HDF5
is off and not supported anymore, see 2.79 release , should now use Ogawa always.So you might have a custom build on your ubuntu?
should be an option in houdini, see here
Marking as incomplete until this question is out of the way...
Added subscriber: @LazyDodo
I can't load this file neither on linux nor windows, it's also suspiciously small you sure it's not just a corrupt file?
Added subscriber: @SteffenD
Well, here is what Houdini 16.5 says to the attached .abc file.
hm, true, file seems to be currupt, no?
abcecho
andabcls
even crash...It does look like the original attached file was corrupted on upload somehow? I am re-uploading the same exact file, which does work on both Houdini 16.5.332 and Blender 2.79. I have removed the bad file from the first post.
My Ubuntu system is a standard install of 17.10. I installed Houdini, Redshift and Blender. I am no Linux guru so there are no other tools installed.
Please give this .abc file a try.
nurbs_circle.abc
I re-conducted the import test on Windows 7 downloading the new file I posted.
This does produce working results. However, the result in 2.79 are wrong while the results in 2.78c are correct.
In both cases, there are extra points on the circle causing it to not form a perfect nurbs circle.
In 2.79 it looks like Blender treats the nurbs circle import as a mesh based circle that has been turned into a polygon based circle.
In 2.78c the import looks much better but has over hanging extra points.
It looks like we are losing functionality in Alembic import on 2.79, compared to 2.78c.
Added subscriber: @dr.sybren
Well hm, afaiks this is a matter of setting the curve resolution.
In 278c curve resolution wasnt really considered at all thus defaulting to U=12
in
5bdbc88ab8
this (curve resolution) was implemented [export>import in blender works], but for files not having this new user property set this would now default to a resolution of 1.While not really a bug, I think D3031: fix #53839: better default for curve resolution in abc import makes more sense? @dr.sybren : could you check?
@AtomP please attach example files to the task description, so that people interested in solving this don't have to read through each individual comment to see which file(s) they should be using.
Apart from the resolution now defaulting to 1 instead of 12 (let's discuss that further in D3031), is there anything else that could be seen as a bug in Blender?
Changed status from 'Open' to: 'Archived'
Seems like a default resolution of 1 (current behaviour) is indeed the wiser choice here (see reasoning in D3031).
Will archive this then as there is nothing else that can be seen as a bug here afaics.