can i change opacity of part of static mesh?

Development Rendering
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1

i try to change opacity where i click

not the whole mesh, i want to change part of i clicked

static mesh is no seperated.

is it possible?

2

Yes its Possible.

  1. Find a way to find the point of click in World Position, like channel trace. Here has some examples. Remember this Vector (ie.: Impact Point).
  2. Use this vector, with this method: