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@Boy1developer Boy1developer released this 03 Oct 18:35
· 9 commits to main since this release
v0.2.0
81cd4a7
Lempo Particle Editor icon

Lempo Particle Editor v0.2.0

Design 2D & 3D particle effects visually — and play them in GDevelop.

Trails & Ribbons · Rebuilt 2D zoom · New Lempo brand

🧩 Compatibility
Effect format v1.1 (v1.0 files are migrated automatically)
GDevelop extension Pairs with Advanced Particle Emitter v0.2.0
Platform Windows 10/11 (64-bit), GPU with OpenGL 3.3

✨ Highlights

  • 🎀 Trails & Ribbons — a full ribbon system with a Unity-style inspector, 27 ready-made templates, and Godot-style distance emission.
  • 🎮 In-game trails — the Advanced Particle Emitter extension v0.2.0 renders exported trail effects as ribbons inside GDevelop (2D and 3D).
  • 🌐 Fast preview now renders trails in 2D and 3D and hides the particle dots, exactly like the editor.
  • 🔍 Rebuilt 2D zoom — world-space simulation with cursor-anchored zoom.
  • 🥕 New Lempo brand (formerly Carrot Particle Editor) — new name, icon, and topbar.

🆕 Added

🎀 Trails & Ribbons

  • 4 editor modes from the startup dialog (keys 2 / 3 / 4 / 5): 2D / 3D particles plus 2D / 3D Trails & Ribbons.
  • TRAIL_SCHEMA (79 keys) with a foldout inspector: Trail / Shape / Color / Texture / Per-Particle / Lighting & Sorting / Tools & Motion — curve and gradient editors, drag-labels, steppers, per-section reset and copy/paste.
  • 27 templates across combat, magic, movement, nature, and stylized, with a template browser (search, favorites, recent, and your own saved presets).
  • Emit modes:
    • time — classic lifetime trails.
    • distance — fixed sections × section length, speed-independent, Godot-style (0 = every-frame tick).
  • Ribbon look — glow + edge + core strips, gradient colors, width curves, flicker, taper, and screen-width floor.
  • Display modes — trail mode shows ribbons only; an optional hybrid mode keeps dots + ribbons.
2D Trails 3D Trails
2D trails and ribbons 3D trails and ribbons
2D trail preview

🎮 In-game (GDevelop extension v0.2.0)

Exported trail effects render as ribbons inside GDevelop — 2D quad strips and 3D billboard strips, pooled and blend-aware, with hideParticle honored. No new objects are needed: the existing emitters gain trail support, and effects without trails render exactly as before.

🌐 Fast preview

The browser preview now draws the same ribbons (Three.js in 3D, PixiJS in 2D) and hides dots in trail mode, with 500 ms live-sync.

2D Fast Preview 3D Fast Preview
2D fast preview 3D fast preview

⚡ Improved

2D viewport

  • Simulation moved to world space — panning never strands old particles, and zoom anchors correctly (cursor-anchored wheel, centered Q / E keys).
  • The purple splitter bar between the settings panel and the viewport drags reliably again.

🐛 Fixed

Issue Cause / Fix
Templates showed orange dots 9 templates carried a hybrid flag and the apply path didn't enforce ribbons-only. All 27 templates are now verified ribbons-only in 2D and 3D, and applying a template can never bring dots back.
Fast preview showed particles in trail mode The preview ignored the trails block entirely.
Shortcut kept the old icon Windows held a stale cached bitmap. The icon now lives at a fresh path (assets/lempo.ico) and every rebuild refreshes the icon cache.

📦 Downloads

File Description
LempoParticleEditor.exe Windows editor. No Python installation required.
AdvancedParticleEmitter.json GDevelop extension (v0.2.0). Import it into your GDevelop project.

Requirements: Windows 10/11 (64-bit) · GPU with OpenGL 3.3

Full changelog: v0.1.2...v0.2.0

Assets 4
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