gazebosim/gz-common

Analysis of external mesh loading libraries and comparison with the existing approach

Open

#344 opened on Apr 16, 2022

View on GitHub
 (20 comments) (2 reactions) (0 assignees)C++ (59 forks)auto 404
enhancementhelp wanted

Repository metrics

Stars
 (28 stars)
PR merge metrics
 (PR metrics pending)

Description

Desired behavior

Be able to load glTF2 and FBX mesh files into Gazebo.

Alternatives considered

Only alternative is on the user side, which creates additional step for converting mesh files into Ignition Gazebo readable format.

Implementation suggestion

There are two ways to extend the capabilities of the Gazebo's mesh loading system; (A) Using an external open-source library or (B) Writing glTF2 and FBX mesh loaders in a consistent way with the current approach.

Analysis is required to decide which approach is better. I am planning to generate such analysis in the next couple of days, so any idea is welcome. Currently gathering ideas around the internet to make a suitable comparision.

I created an additional document for this analysis in here. I will start my analysis with assimp.

Additional context

  1. Currently working on a creating a connection between the assimp library and Ignition Gazebo.
  2. Possible related issues #173,

Contributor guide

Research direction
Analyze external mesh loading libraries like assimp and compare with writing custom loaders to support glTF2 and FBX in Gazebo.
Tech stack
cpp
Domain
computer graphics
Issue type
Research
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
C++3D mesh formats
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60