The Isotropic Remesh
mesh operation restructures the topology of the input mesh so that all edges have the same size. In doing so, some small details and features of the mesh might be distorted or removed. To mitigate thiss, there are two parameters in the Isotropic Remesh Settings to prioritize geometric consistency over isotropy. They are Collapse Threshold
and Geometric Feature Angle In Degrees
.
The Collapse Threshold
parameter collapses edges based on the Target Edge Size
in favor of preserving geometric features over isotropy. By lowering the threshold, smaller details will be preserved.
Notice how these tendrils are losing their cohesiveness when the Collapse Threshold is at the default of 75%
.
By lowering the percentage to 20%
, the volume of the tendrils is preserved.
The Geometric Feature Angle In Degrees
parameter preserves the geometric features of the input mesh based on the chosen dihedral angle. Feature angles above the threshold will be preserved. This is useful when the mesh has many sharp angles such as a hard surface object.
With 'Geometric Feature Angle In Degrees' turned off, the edges appear distorted.
By setting the angle to "5" degrees. The angles are preserved.