Descrição
Make any mesh render on both sides by adding real back faces - no special shader required. Built for the Universal Render Pipeline (URP) and works with any URP material.
BackNormal turns a single-sided mesh into a double-sided one by adding reversed back faces to the geometry. Unlike "Cull Off" shader tricks, it creates real back faces with correctly flipped normals and tangents, so the inside of your mesh is lit properly, casts and receives shadows, and looks right under URP lighting. Ideal for leaves and foliage, cloth, capes, flags, paper, hair cards, curtains, hollow models and any imported mesh whose back faces disappear.
Key features:
• One-click editor window: Tools ▸ BackNormal ▸ Double Sided Mesh.
• Right-click a mesh in the Project view → Create Double Sided Mesh.
• Right-click a GameObject in the Hierarchy → Make Double Sided.
• Runtime component (DoubleSidedMesh) with Apply() / Revert().
• Two modes: Duplicate Vertices (correct two-sided lighting) and Share Vertices (smaller, for unlit/cheap cases).
• Preserves all submeshes, UV0–UV7, vertex colors, skinning (bone weights + bind poses) and blend shapes.
• Handles meshes above 65k vertices automatically (32-bit indices).
• Saves results as reusable .asset files or ready-to-use prefabs. Original meshes are never modified.
• Clean, documented, assembly-defined C# source.
Why modify the mesh instead of using a shader:
• Works with any URP material — no shader to write or maintain.
• Correct lighting, shadows and normal maps on the back side.
• No per-frame cost and no extra draw calls — it is just geometry.
Full user manual and API reference are included as a PDF.
Technical Information:
• Number of C# scripts: 7 (Runtime + Editor).
• Supported Unity version: Unity 6 (6000.x) and newer.
• Render pipeline: URP (works with any URP material).
• Platforms: all (utility is pure C#, no editor-only runtime dependency; works on mobile/standalone/console).
• Dependencies / prerequisites: None (no third-party packages required).
• Audio: None / N/A (this product contains no audio).
• Documentation: Included — BackNormal_Manual.pdf (user manual + API reference).
• Third-party assets / licenses: None.
Supported engine version & render pipeline: Unity 6 (6000.x)+ · URP.