f07542d8cb
Hair and Curves need to call `DRW_curves_update` before `geometry_steps_fill`, otherwise the copied geometry is just uninitialized data. However, doing so triggers an assertion: > DRW_render_instance_buffer_finish had not been called before drawing. This PR ports the `DRW_hair/curves_pos_buffer_get` functions to the new `draw::Manager` API, so it can be called at any arbitrary point. It also changes `VelocityModule::geometry_map` to use `uint64` keys instead of `ID` pointers, since the same particle system can be used on different objects and have multiple geometries. Notes: * The new functions are only used for `VelocityModule::step_object_sync` on image renders. Using them elsewhere would require modifying the old draw manager to do the init/update/free setup. * Only the compute shader version has been ported. Pull Request: https://projects.blender.org/blender/blender/pulls/112425
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