Vine & Creeper System – Procedural Growth, Runtime API & Physics

Grow Vines on Any Surface — In the Editor or at Runtime Vine & Creeper System is a production-ready procedural vegetation tool. Place a seed on any surface, click Start Growth, and watch organic vines crawl across walls, arches, floors, ceilings, and overhangs — all in real time. Need runtime interactivity? Spawn, trim, and regrow vines from code in a single line. Need performance? GPU compute acceleration, 4-level automatic LOD, and spatial culling keep frame times low even with dozens of vines in a scene. Key Features Procedural Growth - Two growth algorithms: Surface Crawler (sine-wave wiggle, raycasting adhesion, corner wrapping) and Radial Spread (multi-branch fan ideal for ground cover) - Configurable step size, branch probability, gravity, stiffness, and organic randomness - Reproducible results via seed — same seed always produces the same vine Runtime Dynamics - Spawn vines at runtime with a single API call: VineSystem.Instance.CreateAndGrow(...) - Trim vines to length and regrow them from any state — ideal for gameplay mechanics like cutting vines or environmental storytelling - Full state machine: Growing → Paused → Trimmed → Regrowing - async/await support with cancellation token for non-blocking workflows Droop Physics - Three modes: Verlet (rope simulation), Catenary (analytic curve), Hybrid (blend of both) - Configurable stiffness and iteration count - Applied after growth completes for realistic sag and weight GPU-Accelerated Rendering - Dual render path: GPU compute shader on PC/Console, CPU fallback for Mobile/WebGL - Auto-detected at runtime — no manual configuration required - Billboard LOD2 for distant vines LOD & Culling System - 4-level LOD: Full mesh → Reduced mesh (~50% segments) → Billboard → Culled - Distance-based and screen-size-based switching - Grid-based spatial culling for large open-world scenes Editor Tools - Visual seed placement in Scene view - Optimize button to reduce segments while preserving shape - Unified Preset Manager tab: browse, filter, set default, save, and create presets - One-click bake to prefab with collider, lightmap UV, and mesh optimization options - Save/load vine state to JSON for procedural world persistence Preset Library (10 included) - Dense Forest Vines, Wall Climbing Ivy, Tropical Jungle Vines - Ground Covering Creepers, Fast Growing Creepers, Sparse Decorative Vines - Minimalist No Leaves, Low Poly, Atlased Leaves Example, Throne - Each preset is a standalone .asset file — duplicate and customise Performance Benchmarks - PC (mid-range): 5,000 segments @ ~4.15 ms/frame (240 FPS) - Mobile: 1,000 segments @ ~2.34 ms/frame (428 FPS) - 97%+ GC allocation reduction via dirty-flag mesh system and object pooling - CPU manager overhead: ≤ 1.5 ms/frame What's Included - 87 C# scripts across API, Algorithms, Core, Editor, Rendering, and Runtime modules - 4 Built-in pipeline shaders (Trunk, Leaves, Leaves Full, Leaves Simple) - 10 VinePreset .asset files - 4 demo scenes (Procedural Baked, Procedural Runtime, No Animated, Runtime Test) - Full documentation: User Manual, API Reference, Presets Guide Documentation All documentation is included in the package under Docs/: - USER_MANUAL — Installation, editor workflow, all 40+ parameters explained - API_REFERENCE — Full API reference with signatures and code examples - PRESETS_GUIDE — Every preset described with use-case guidance