BL Objector

BL Objector lets you randomize your scene by swapping BlenderKit assets with similar alternatives — perfect for environment artists, level designers, and anyone iterating on dressed scenes.

• Replace Active Asset — pick one BlenderKit object and swap it for a random asset of the same type and category.
• Replace Selected Assets — select many objects at once and replace them all with random alternatives in a single click. Each selected asset is processed in turn so nothing is skipped.
• Smart asset detection — works even if you have a child mesh selected. The add-on walks up to the BlenderKit asset root automatically, and de-duplicates so the same asset is never replaced twice in one batch.
• Category-aware search — by default replacements stay inside the original asset's BlenderKit category subtree (e.g. trees stay trees, chairs stay chairs).
• Optional query refinement — toggle search by original asset name and/or its tags for tighter, more thematic matches.
• Configurable result pool — choose how many BlenderKit results (5–100) to randomize from.
• Random Z rotation — optionally apply a random Z-axis rotation on each replacement, with adjustable min/max range, so duplicated assets feel natural in the scene. Available as a standalone tool too (Randomize Selected Z Rotation).
• Clean scene output — leftover placeholder objects are flattened and any empty collections created by the replace are pruned automatically.

• 3D Viewport → N-panel → Objector tab: full settings + buttons.
• Right-click any object → Objector submenu: quick access to Replace Random, Replace for Selection, and Randomize Z Rotation.

• Blender 3.0 or newer (Blender 4.2+ extensions and legacy 4.x/3.x add-ons supported).
• BlenderKit add-on installed and signed in with your API key.

• Quickly try different tree, rock, prop or furniture variants without manually browsing.
• Generate visual variation across many duplicated assets in a forest, city or interior scene.
• Speed up scene iteration during look-development and previz.