How to solve the problem of stretching and enlarging the InstanceMesh in the material, or cropping the viewport according to the original size

Development Programming & Scripting C++
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1.Use materials to offset the world position of InstanceMesh (enlarge and stretch the model)
2.When my camera zooms in to view the details of the model, it will be cropped out
3.After research, it was found that the pruning principle is based on the original Transform size of the instance model for pruning,

Excuse me, how can this problem be solved?