b183e3ae89
The Alembic importer can optionnaly interpolate vertex and matrix data. To detect if two samples can be interpolated `get_weight_and_index` needs to be called which output the interpolation weight and the indices for the floor and ceil samples separately. Either the weight or the indices could be used to determine if interpolation was needed. This adds a `SampleInterpolationSettings` structure to hold the weight and indices together so we don't need to manage multiple local variables, and replaces `get_weight_and_index` with `get_sample_interpolation_settings` which returns either a `SampleInterpolationSettings` or nothing if no interpolation is necessary. This also modifies `AbcMeshData` to have an optional `SampleInterpolationSettings` and removes members used for interpolation from `CDStreamConfig`, which simplifies the latter structure as well as the check in `read_mverts` to verify if interpolation is needed. `get_config` also no longer needs a parameter for setting the now removed `use_vertex_interpolation` member from `CDStreamConfig`. This was only used for Mesh vertex interpolation despite also being set in the points reader (which does not yet support any interpolation). No functional changes. Pull Request: #109155 |
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