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HM - Volume Filters: OpenVDB

HM - Volume Filters: OpenVDB

OpenVDB meshes always require a certain amount of filtering. For this purpose we have added three additional filter types for refining your meshes. These volume filters

In order to apply volume filters, expand the appropriate section and click on “+” to add a filter. "Add default filters" creates a "Dilate" and an "Erode" filter.

 

 

Dilate

This filter type is used to blow up the mesh, fill holes and create thicker fluid edges:

  • Every positive number including 0 is accepted.
  • Offset” strongly depends on the amount of particles, but we recommend starting with values smaller than 1.0.
  • Higher settings increase mesh creation time.
Erode

This filter type creates more details and a closer representation of the underlying particle cloud, but you will also get a rougher surface and more holes:

  •  Every positive number including 0 is accepted.
  • Offset” strongly depends on the amount of particles, but we recommend starting with values smaller than 1.0.
  • Higher settings have a stronger erosion effect.
Smooth

This filter type smoothes the surface and reduces the mesh's amount of details:

  • Only integers including 0 (disables the filter) are accepted.
  • Iterations” determines how often the filter is applied.
  • The filter is very sensitive, but strongly depends on the fluid's quality. We recommend starting with Iterations = 1.
  • Higher settings have a stronger smoothing effect and the mesh will shrink.