Work with adaptive meshes in Bifröst aero simulations

Adaptive meshes are voxelized objects that specify regions of adaptivity in aero simulations. Within the adaptive mesh's bounding box, aero simulates at full resolution, as defined by the container's Master Voxel Size setting. Areas outside the adaptive mesh simulate at lower resolutions. You can add a mesh object, including arbitrary shapes, as an adaptive mesh.

Add adaptive meshes

1. Select one or more polygon meshes to act as adaptive meshes (instances are not supported), as well as either one of the following:
   • The main container (e.g. bifrostAero) to add all selected meshes to a new shared emitter property. Alternatively, you can select the shape (e.g. aero) .
   • An existing adaptive mesh property to share its attribute values with the selected meshes.
2. Select Bifrost Fluids > (Add) Adaptive Mesh.

   Enable gets automatically activated in the Spatial group of the main aero property's Adaptivity attributes.

3. (Optional) To preview the resolution levels in the simulation tile tree, turn on Tile View in the shape's attributes. See Tile View controls.

Remove adaptive meshes

1. Select the following:
   • One or more adaptive meshes.
   • The main container.
2. Select Bifrost Fluids > Remove > Adaptive Mesh.

   When you remove the last mesh that uses a particular property, the property node is removed as well.