BlenderMCP

Feature: Decimation As a retopology artist I want to reduce polygon count while preserving shape So that I can create LODs or optimize heavy meshes Background: Given the MCP server is running And the Blender addon is connected And a mesh object is active Scenario Outline: Decimate with collapse mode Given a dense mesh with <initial_faces> faces When I call decimate with ratio=<ratio> and mode="COLLAPSE" Then the face count is reduced to approximately <ratio> of original And the shape is preserved with minimal distortion And boundaries and sharp edges are preserved if specified Examples: | initial_faces | ratio | expected_faces | | 10000 | 0.5 | ~5000 | | 10000 | 0.25 | ~2500 | | 5000 | 0.1 | ~500 | Scenario: Decimate with planar mode Given a mesh with flat surfaces When I call decimate with ratio=0.5 and mode="DISSOLVE" Then planar faces are dissolved And edge loops on curved surfaces are preserved And the polygon count is reduced Scenario: Decimate with un-subdivide mode Given a heavily subdivided mesh When I call decimate with mode="UNSUBDIVIDE" and iterations=2 Then the mesh is simplified by reversing subdivision And the basic form is maintained Scenario: Decimate preserves UVs and vertex colors Given a mesh with UV maps and vertex colors When I call decimate with ratio=0.5 Then UV coordinates are preserved on remaining vertices And vertex colors are interpolated correctly