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unitycoder / UNITY_MATRIX_IT_MV.shader

Last active September 11, 2024 05:46

UNITY_MATRIX_IT_MV[] Vectors in Shader

	UNITY_MATRIX_IT_MV[0].xyz = ???
	UNITY_MATRIX_IT_MV[1].xyz = Camera Up
	UNITY_MATRIX_IT_MV[2].xyz = Camera Forward

	float3 forward = -normalize(UNITY_MATRIX_V._m20_m21_m22);
	cameraFwd = -unity_MatrixInvV._m02_m12_m22;
	float3 up = normalize(UNITY_MATRIX_V._m10_m11_m12);
	float3 right = normalize(UNITY_MATRIX_V._m00_m01_m02);

	float3 cameraUp = unity_CameraInvProjection[1].xyz;

luxuia / obb_md5_computer.cs

Created November 1, 2018 08:45

unity 会记录打出来的obb的hash在/assets/bin/Data/settings.xml 。修改obb或者想复用obb就需要修改apk内的hash字段。用obb的最后65558个字节计算的hash

	public static string CalculateObbDigest(string file)
	{
	byte[] arrayOfByte = null;

	using (var localMessageDigest = MD5.Create())
	using (var localFileInputStream = File.OpenRead(file))
	{
	long l1 = localFileInputStream.Length;
	localFileInputStream.Seek(l1 - Math.Min(l1, 65558L), SeekOrigin.Current);
	arrayOfByte = localMessageDigest.ComputeHash(localFileInputStream);

luxuia / obb_md5_computer.py

Created November 1, 2018 09:15

计算obb hash的python方法