NodeIcon DecimateGeom

Decimates geometry to lower number of triangles.

The node only allows manifold geometry as input. If the geometry is non-manifold please use RepairGeom node to fix it. The DecimateGeom node preserves boundary edges.

../../_images/DecimateGeom.png

It is recommended to clean up the model (using RemoveSpikes and remove small components) before decimation to get better results.

Note

When using on photogrammetry data it is highly recommended to generate new UVs and re-project texture on the decimated model instead of using keep UVs option.

Inputs

geometry

Geometry A geometry to be decimated. Only manifold topology is allowed. If the geometry contains polygons with more than 3 vertices, they will be triangulated beforehand.

Output

Geometry Decimated geometry

Parameters

triangles

desired number of triangles in resulting geometry.

The actual number of triangles can be bigger if further decimation is not possible.

keep UVs

if set, the decimation will also decimate texture-coordinates.

While providing UVs for decimated model it may lead to unwanted seams on resulting geometry.