  With the popularity of implicit neural representations, or neural radiance
fields (NeRF), there is a pressing need for editing methods to interact with
the implicit 3D models for tasks like post-processing reconstructed scenes and
3D content creation. While previous works have explored NeRF editing from
various perspectives, they are restricted in editing flexibility, quality, and
speed, failing to offer direct editing response and instant preview. The key
challenge is to conceive a locally editable neural representation that can
directly reflect the editing instructions and update instantly. To bridge the
gap, we propose a new interactive editing method and system for implicit
representations, called Seal-3D, which allows users to edit NeRF models in a
pixel-level and free manner with a wide range of NeRF-like backbone and preview
the editing effects instantly. To achieve the effects, the challenges are
addressed by our proposed proxy function mapping the editing instructions to
the original space of NeRF models in the teacher model and a two-stage training
strategy for the student model with local pretraining and global finetuning. A
NeRF editing system is built to showcase various editing types. Our system can
achieve compelling editing effects with an interactive speed of about 1 second.
