OpenXRay/xray-16

Try to use ozz-animation

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#1,675 opened on May 16, 2024

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AnimationDeveloper ExperienceEnhancementHelp wantedPerformancePortabilityRenderer

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Description

Remove original animation system code from xrRender and use https://github.com/guillaumeblanc/ozz-animation

Advantages:

  1. Animation system has reasonably big amount of code that takes time to compile and it gets compiled two times because we have two renderers. Putting it into separate library is problematic due to #ifdefs in the code. With ozz-animation we can just use separate GAPI-agnostic library.
  2. More advanced features available.
  3. Designed with multithreading in mind. (https://guillaumeblanc.github.io/ozz-animation/samples/multithread/) Since animations calculations take reasonable amount of time during the frame, it's a good place for significant improvement.
  4. High-quality third party library – reduces code that we need to support ourselves.

Disadvantages, limitations?

To be identified.

Contributor guide

Research direction
Study the existing animation code in xrRender and understand how to integrate ozz animation as an external dependency. Identify the necessary changes to replace the current system and ensure compatibility with both renderers.
Tech stack
cpp
Domain
game dev
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Over 1 week
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
GitC++
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
25