float3 getNewVertPos(float3 pos){ float4 hoge = float4(0,0,0,0); hoge.y = _Amp+_Amp*sin( (pos.x*_Detail.x+pos.z*_Detail.z) *3.1415 + _Time.y*4 ); hoge.y *= step(0,pos.y);//マイナスyは無効化する return pos + hoge; } float3 getNewNormal(floa…