Reduce (Decimate)

Reduce lowers the polygon count of a mesh while preserving the overall shape. This is useful for simplifying highly detailed models, reducing file size, and speeding up operations on complex geometry.

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How to Use

  1. Select an object
  2. Apply the Reduce operation from the Mesh menu
  3. Choose your target (count or percentage) and adjust

Parameters

  • Mode - Choose how to specify the target:
    • Percent - Keep a percentage of the original polygons (default: 50%)
    • Count - Target a specific polygon count
  • Source Polygon Count - Original number of polygons (read only)
  • Target Percent - Percentage of polygons to keep (visible in Percent mode)
  • Target Count - Exact number of polygons to keep (visible in Count mode)
  • Count After Percent Reduction - Final polygon count after percentage reduction (read only)
  • Maintain Surface - Project vertices back to the original surface for higher accuracy (slower but more faithful to the original shape)

Tips

  • 50% reduction usually preserves visual quality well
  • Enable Maintain Surface when accuracy matters more than speed
  • Reducing polygon count speeds up boolean operations on complex imported models
  • Very low polygon counts will visibly degrade the shape – check the result before committing