Placing actors cleanly on terrain or modular surfaces often requires tedious manual adjustment, especially on slopes, irregular meshes, or when working with mixed asset sizes.

LandSnap is an Unreal Editor utility that adds controlled, surface-aware snapping behavior for these scenarios. It supports tagged surfaces, size-aware settling, and conditional alignment to reduce repetitive transform tweaking during level design.

Why LandSnap is useful

LandSnap is designed for situations where default snapping tools become inefficient or unpredictable, particularly during environment and set-dressing workflows that require consistent, repeatable placement.

What LandSnap Is For

• Placing props or modular pieces on uneven or sloped terrain

• Aligning assets to non-flat surfaces without simulation

• Restricting snapping to specific, designer-defined surfaces

• Set dressing passes where consistency and speed matter

Snapping is explicit and user-invoked, with configurable behavior depending on asset scale and surface type.

Design Scope

LandSnap keeps its scope intentionally focused:

• Editor-only placement (no runtime behavior)

• Predictable, repeatable results over “smart” automation

• No physics simulation or continuous snapping

The goal is to reduce manual adjustment while keeping placement behavior understandable and controllable.

Tracing & Placement Model

• LandSnap is World Static–first for stability and performance

• Visibility channel tracing is supported, but typically benefits from:

  • Manual size presets

  • Custom trace distances

  • Per-asset tuning in edge cases

Defaults are chosen to work well for common editor use, with options available when projects require more control.

Accuracy & Scale Expectations

Supports a wide range of asset sizes:

• Tiny assets: accurate down to 0.01

• Typical assets: best results up to ~50 × 50 × 50

• Large assets: usable up to ~100 × 100 × 100, with reduced precision on complex surfaces

Very large footprints, extreme slopes, or thin meshes may require additional tuning.

Version 1.0.1
✨ New

• Bucket Classifier Options
  Added support for Linear, and Quantile bucket classification (Logarithmic is default).
  Users can now switch classification modes to better match asset scale distributions, dramatically reducing edge cases.

• Profiles (Macro Preset Handling)
  Introduced Profiles (e.g. Foliage, Props, Buildings) to group presets at a higher level.
  This makes per-project configuration significantly more user-friendly and reduces the need for manual preset tweaking.

🎯 Why this matters

• Makes LandSnap feel intent-driven instead of parameter-driven

• Cleaner UX for real production scenes with mixed-scale assets