material id

[raja]

hi; I have been faced with this matter pleas help me I want the middle box during the colliding time by any other objects, it Get material of them and changed.

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  materail test.rar (Size: 44 KB / Downloads: 193)

  materail test.rar (Size: 44 KB / Downloads: 193)
  materail test.rar (Size: 44 KB / Downloads: 193)
  materail test.rar (Size: 44 KB / Downloads: 193)
  materail test.rar (Size: 44 KB / Downloads: 193)
  materail test.rar (Size: 44 KB / Downloads: 193)
  materail test.rar (Size: 44 KB / Downloads: 193)