Easy Import Export VPs

Version: 1.15.33 | Compatibility: Blender 5.1+ | Author: VP Studio 3D

Overview

Easy Import Export VPs is a comprehensive pipeline automation addon for Blender. Designed specifically for game developers (Unreal Engine, Unity) and 3D marketplace creators (Sketchfab, CGTrader), this tool completely automates the tedious processes of FBX import/export, asset cleanup, LOD generation, UCX collision creation, and PBR texture packing.

🚀 Main Operations

• IMPORT FBX: Imports selected FBX files, automatically creating a new Import_X collection. It automatically applies smart scaling to fix 0.01 scale issues, cleans leaf bones, and sorts objects into a neat grid layout.

• EXPORT FBX: Batch exports selected root objects into separate FBX files. Applies a x100 scale for Unreal Engine compatibility, centers objects to the world origin (0,0,0), and automatically adds prefixes (SM_, SKM_) and suffixes (_anim).

• IMPORT / EXPORT SCENE: Bypasses batching and grid layouts to handle the entire scene as a single FBX file.

• EXPORT SCENE (ONE RIG): Automatically merges multiple selected armatures and their meshes into a single, unified rig. Merges all animation data into a master action. Perfect for Sketchfab presentations.

⚙️ Advanced Settings Breakdown

Toggle "Advanced Settings" to access the full suite of automation tools.

1. OneRig Options

• Merge Selected Rigs: Manually trigger the OneRig merge process.

• Merge Meshes & Center Origin: When merging rigs, this merges all child meshes into one single mesh and resets the origin to the world center.

2. Layout & Placement

• Auto Grid Layout: Arranges imported or selected objects into a grid format.

  • Grid Step / Rows: Defines the distance (in meters) between objects and the number of rows.

  • Sort By: Sort objects based on Height (Z), Footprint (XY), Volume (XYZ), Alphabetical, Alphabetical (Rigs First), or Polycount.

• Smart Shift: Automatically shifts imported objects to the left if the current 3D cursor position is already occupied by other objects.

• Origin To Bottom Before Sort: Moves the origin point of all objects to their bottom-center bounding box before arranging them.

• Auto-Layout Selected / Move Selected Left: Manual triggers for layout organization.

3. Bones

• Auto Scale Bones: Automatically detects and scales down abnormally large bones (e.g., giant leaf bones imported from other software) without breaking the mesh skinning.

• Scale x2 / Scale x0.5: Manually scale selected bones up or down from their individual origins in Edit Mode.

4. Cleanup

• Auto Purge: Removes all unused data blocks (orphan materials, meshes, etc.).

• Cleanup Names (.001): Intelligently removes .001 numeric suffixes from all objects, meshes, and materials. Also converts Cyrillic characters to Latin automatically.

• Remap Duplicate Materials: Finds and merges duplicate materials (e.g., merges Material.001 into Material).

• Clean Empties (<2 Children): Deletes redundant empty objects that serve no structural purpose, preserving the world transforms of their children.

• Clean Mesh Geometry: Automatically deletes loose vertices/edges, dissolves degenerate geometry, and removes double vertices.

5. Batch Renaming

Select multiple objects and perform bulk renaming operations:

• Action: Choose between Add Prefix, Add Suffix, Replace text, or Delete text.

6. LODs (Level of Detail) & Collision

• LOD Count: Set the number of LODs to generate (1 to 6).

• Aggressiveness (0.0 - 0.95): The polygon reduction ratio per step. A value of 0.8 ensures aggressive optimization for background assets.

• Merge Child Meshes: Merges all child meshes of a root object before generating LODs to ensure clean decimation.

• Auto UCX Collision: Automatically generates a convex hull collision mesh named UCX_[ObjectName] using inverted normals, ready for Unreal Engine.

• Generate LODs: Manual trigger to create LOD hierarchies with proper _LOD0, _LOD1 suffixes and an empty controller (if not rigged).

7. Statistics (HUD)

Displays an interactive viewport HUD for selected objects.

• Display Toggles: Name, Polygons, Edges, Vertices, Bones, UV Maps Count.

• Texel Density: Calculates and displays the average Texel Density (px/m) based on a chosen texture resolution (e.g., 4K).

• Check UV Overlap: Detects if there are overlapping UV islands in the selected UV map.

• Geometry Errors: Highlights loose vertices, loose edges, and non-manifold geometry in red text.

• Auto Show: Automatically displays the HUD when selecting an object and hides it upon deselection.

8. Import Settings

• Smart Scale & Axis: Fixes massive dimensions and 0.01 scale issues common with raw FBX files.

• Clean Leaf Bones: Safely removes zero-weight end-bones generated by other software.

• Delete LODs / Delete Textures: Strips out existing LODs/UCX models or clears all material slots upon import for a clean slate.

• Mark UV Seams: Reconstructs and marks mesh seams based on existing UV island borders.

• Apply Auto Smooth 180: Fixes faceted shading by applying a Smooth by Angle modifier (180 degrees) if sharp edges are detected.

• Auto Setup Timeline: Automatically adjusts the Blender scene's start and end frames to fit the imported animation data.

9. Export Settings

• Batch Export Selected / Auto Detect Batch: Exports multiple root objects into separate FBX files automatically.

• Smart Scale & Axis: Scales objects by x100 during export to ensure 1:1 unit matching in Unreal Engine.

• Reset Position To Zero: Temporarily moves objects to the world center (0,0,0) during export.

• Auto Prefix / Auto Suffix: Automatically names files with SM_ (Static Mesh) or SKM_ (Skeletal Mesh) and adds _anim if animation tracks are present.

• Triangulate: Applies a Triangulate modifier before export while keeping custom normal shading intact.

• Generate Lightmap: Automatically creates a secondary UV map named Lightmap packed with optimal margins for light baking.

• Generate LODs / Generate UCX: Triggers the LOD and collision generation logic during the export phase, ensuring clean output files without cluttering your working scene.

• Embed Textures & Rebuild Nodes:

  • Automatically embeds textures into the FBX file.

  • ARM Splitting/Packing: Automatically identifies Ambient Occlusion, Roughness, and Metallic nodes and packs them into a single ARM texture.

  • Normal Inversion: Inverts the green channel of normal maps if required by the shader setup.

  • Downscale: Optionally divides texture resolutions by 2 or 4 to save file size during export.