Edge Fusion: Smooth Surface Contacts

Edge Fusion is a post-processing effect for Universal Render Pipeline that blends edges between objects to eliminate hard seams and produce cohesive, natural-looking scenes. Add it as a Render Feature and control it through a Volume, with both global and per-object settings to target exactly where blending should occur.

🌟 Key features:

- Edge blending: smooths transitions between meshes, terrain, and props without changing materials or geometry.

- Global control via Volume: intensity, world‑space radius, max blend distance, and max screen radius.

- Intra-object fusion (optional): blends within the same mesh based on normal/depth discontinuities.

- Per-object overrides with Edge Fusion Object: custom radius (0 disables), include children with layer mask.

- Performance tuning: sample count, binary search steps, jitter (TAA-friendly), 3D noise (intensity/scale), shadow protection.

- Blend layers: choose precisely which objects participate in blending, including exclusion rules.

- Debug views: object IDs, Edges, Blending, Normals, and Depth.

- Compare mode: realtime side-by-side view to compare the original with the applied effect.

- Editor friendly: optional Scene View rendering; can run even if the camera’s post processing is off.

🎯 Ideal usecases:

• Modular environments: hide seams between tiles, walls, floors, cliffs.
• Terrain + props/materials: blend contacts for rocks, sand, snow, mud, gravel, dust, ice, ash, soil, moss, roots, asphalt/roads, ...
• Kitbashing/mixed packs: unify assets from different styles and PBR setups.
• Photogrammetry: soften scan boundaries when merging with terrain/meshes.
• Foliage/debris contacts: reduce harsh intersections for more believable placement.
• Intra‑object smoothing: reduce visible splits/normal seams on segmented meshes.
• Cinematics/marketing: fast polish without editing materials or geometry.
• Prototyping/blockouts: Instant cohesion while iterating layouts.

➡️ Getting started:

1) Add the Edge Fusion Render Feature to your URP Renderer.

2) Create a Global Volume (or use an existing one) and add “Kronnect/Edge Fusion”.

3) Adjust intensity and radius; set your blend layers.

4) Optionally add Edge Fusion Object to specific GameObjects for fine control.

Related assets:

Edge Fusion is included in our Visual Fidelity Ultra and Ultimate Bundle. You can buy Edge Fusion now and upgrade later to any of these bundles with a discount.

- Looking for HDRP support? Check out Edge Fusion HDRP.

📖 Documentation | 💬 Support | 🎬 YouTube | 🏢 Publisher Page

Kronnect is dedicated to high-quality Unity assets with continuous updates and responsive support.

Release Notes

Version 3.2:

- Added support for Unity 6.4

- Added "Distance Compensation" option. Scales the effective radius with distance from camera, keeping blending smooth up close while increasing reach for distant objects.

- Internal improvements and fixes

Version 3.1.4:

- [Fix] Reflection probes rendering magenta on Mac/Metal - effect now skips non-game cameras

Version 3.1.3:

- Minor inspector changes and internal fixes

Version 3.1.2:

- [Fix] Fixed an issue with Edge Fusion Object component when enabled at runtime

Version 3.1.1:

- Added option for Intra-Object Fusion so it only applies to objects that contain the Edge Fusion Object script

- Added option to Edge Fusion Object script to disallow intra-object fusion per object

- Added DOTS support

- Fixes

Version 3.0.3:

- Special group can now be blended even with blend layers set to nothing

- [Fix] Fixed an issue when excluding objects by overriding the radius to zero

Version 3.0.2:

- Added "Exclusion Pairs" option. Exclude blending between specific objects with custom Ids.

- Added "Blend With Others" option. Defaults to true, can be used to prevent selected layers to blend with anything else.

Full change-log can be found in the README file included with the package.