in this page UNITY_MATRIX_IT_MV From SL-UnityShaderVariables.html built-in Unity shader variable _ScreenParams.xy https://docs.unity3d.com/Manual/SL-UnityShaderVariables.html 組み込みの変数一覧は公式にあります T https://docs.unity3d.com/Manual/SL-UnityShaderVariables.html _ScreenParams.xy UNITY_MATRIX_IT_MV From SL-UnityShaderVariables.html https://docs.unity3d.com/Manual/SL-UnityShaderVariables.html Built-in shader variables shader variables https://docs.unity3d.com/Manual/SL-UnityShaderVariables.html Unity - Manual: Built-in shader variables built-in variables Built-in shader variables Unity - Manual: Built-in shader variables UNITY_MATRIX_IT_MV From SL-UnityShaderVariables.html