In this step, the deformer iteratively compares both meshes to identify the best matching areas. It uses a combination of proprietary shape descriptors combined with proximity scores to calculate the optimal result while avoiding overshooting deformations.
Parameters:
- Register Iterations
Default: 0 | Min: 0 | Max: 50
This parameter sets the number of iterations for the comparison process. It’s recommended to begin with a modest number (e.g., 10), then revert to zero before adjusting upstream deformations such as initial alignment or pin weighting if you need enhanced responsiveness, and so on. A caching mechanism helps maintain smoother scrolling when iterations are set—provided no other parameters change. When iterations are cached, a yellow line is displayed up to the highest cached iteration. - Register Sampling
Default: 0.8 | Min: 0 | Max: 1
The percentage of points used for comparing mesh features. Reducing it will decrease the result quality, but will improve the compute time a lot. You can lower this value to 0.1 – 0.3 when you start the registration process, and set it back to 0.7 – 1 for the final result. - Register Search Distance
Default: 0.5 | Min: 0 | Max: 1
This factor establishes the base search radius for proximity comparison before evaluating features. Increasing this value can yield more candidate matches but may also lead to excessive distortion, so you may have to increase stiffness and iterations accordingly. - Register Stiffness
Default: 0.5 | Min: 0 | Max: 1
This setting controls the balance between resistance to deformation and the attraction to mesh features. Lower stiffness values allow for greater deformations, while higher values limit distortion. For the best quality, higher stiffness combined with more iterations is recommended.
Important: before pushing for maximum quality at this stage, it’s advisable to perform several tests using the next “refinement” step, which is much more responsive and can achieve excellent results on its own.