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@sugi-cho(ひろのり すぎの)

WorldSpaceにおけるカメラの方向(UnityShader)

Posted at

カメラ空間への変換行列から取得できる

  • カメラ右方向: UNITY_MATRIX_V[0].xyz
  • カメラ上方向: UNITY_MATRIX_V[1].xyz
  • カメラ前方向: -UNITY_MATRIX_V[2].xyz

情報源

i-saintさんのブログ記事です(._.)
http://i-saint.hatenablog.com/entry/2015/03/18/194818

使用例

ビルボードの法線はカメラの方向を向いていることから、ビルボードのライティングに利用。
https://github.com/sugi-cho/BillboardStandardLit

Billboards.png

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