OpenPoiesis/poietic-playground

Prevent geometry update on viewport offset change

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#18 opened on Aug 8, 2026

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enhancementgood first issue

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Description

Updating geometry on panning is not necessary (unless we want to align some annotations).

Changes required:

  • Renderer gets viewport offset and sets appropriate transformation
  • On offset change the geometry is not changed, just mark overlays as dirty

Contributor guide

Research direction
Inspect the renderer's geometry update logic and how it handles viewport offset changes. Identify where offset updates trigger geometry changes, then modify so that offset changes only mark overlays as dirty and apply a transformation instead.
Tech stack
None
Domain
computer graphicsdesktop
Issue type
Performance
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
GitGodot
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75