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所属分类:百科知识
在Unity中,要获取Texture的内存文件大小,可以使用UnityEditor.TextureUtil类中的一些函数。这些函数提供了获取存储内存大小和运行时内存大小的方法。由于UnityEditor.TextureUtil是一个内部类,我们需要使用反射来访问它。
步骤
- 导入UnityEditor命名空间和System.Reflection命名空间:
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using UnityEditor; using System.Reflection; |
- 创建一个函数来获取Texture的内存文件大小:
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public static long GetTextureFileSize(Texture2D texture) { long fileSize = 0; // 使用反射获取UnityEditor.TextureUtil类的Type Type textureUtilType = typeof (TextureImporter).Assembly.GetType( "UnityEditor.TextureUtil" ); // 使用反射获取UnityEditor.TextureUtil类的GetStorageMemorySizeLong方法 MethodInfo getStorageMemorySizeLongMethod = textureUtilType.GetMethod( "GetStorageMemorySizeLong" , BindingFlags.Static | BindingFlags.Public); // 调用GetStorageMemorySizeLong方法获取存储内存大小 fileSize = ( long )getStorageMemorySizeLongMethod.Invoke( null , new object [] { texture }); return fileSize; } |
- 创建一个函数来获取Texture的运行时内存大小:
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public static long GetTextureRuntimeMemorySize(Texture2D texture) { long memorySize = 0; // 使用反射获取UnityEditor.TextureUtil类的Type Type textureUtilType = typeof (TextureImporter).Assembly.GetType( "UnityEditor.TextureUtil" ); // 使用反射获取UnityEditor.TextureUtil类的GetRuntimeMemorySizeLong方法 MethodInfo getRuntimeMemorySizeLongMethod = textureUtilType.GetMethod( "GetRuntimeMemorySizeLong" , BindingFlags.Static | BindingFlags.Public); // 调用GetRuntimeMemorySizeLong方法获取运行时内存大小 memorySize = ( long )getRuntimeMemorySizeLongMethod.Invoke( null , new object [] { texture }); return memorySize; } |
示例代码
示例 1:获取Texture的存储内存大小
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using UnityEngine; using UnityEditor; using System.Reflection; public class TextureSizeExample : MonoBehaviour { [SerializeField] private Texture2D texture; private void Start() { long fileSize = GetTextureFileSize(texture); Debug.Log( "Texture File Size: " + fileSize + " bytes" ); } private static long GetTextureFileSize(Texture2D texture) { long fileSize = 0; Type textureUtilType = typeof (TextureImporter).Assembly.GetType( "UnityEditor.TextureUtil" ); MethodInfo getStorageMemorySizeLongMethod = textureUtilType.GetMethod( "GetStorageMemorySizeLong" , BindingFlags.Static | BindingFlags.Public); fileSize = ( long )getStorageMemorySizeLongMethod.Invoke( null , new object [] { texture }); return fileSize; } } |
示例 2:获取Texture的运行时内存大小
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using UnityEngine; using UnityEditor; using System.Reflection; public class TextureSizeExample : MonoBehaviour { [SerializeField] private Texture2D texture; private void Start() { long memorySize = GetTextureRuntimeMemorySize(texture); Debug.Log( "Texture Runtime Memory Size: " + memorySize + " bytes" ); } private static long GetTextureRuntimeMemorySize(Texture2D texture) { long memorySize = 0; Type textureUtilType = typeof (TextureImporter).Assembly.GetType( "UnityEditor.TextureUtil" ); MethodInfo getRuntimeMemorySizeLongMethod = textureUtilType.GetMethod( "GetRuntimeMemorySizeLong" , BindingFlags.Static | BindingFlags.Public); memorySize = ( long )getRuntimeMemorySizeLongMethod.Invoke( null , new object [] { texture }); return memorySize; } } |
示例 3:同时获取Texture的存储内存大小和运行时内存大小
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using UnityEngine; using UnityEditor; using System.Reflection; public class TextureSizeExample : MonoBehaviour { [SerializeField] private Texture2D texture; private void Start() { long fileSize = GetTextureFileSize(texture); long memorySize = GetTextureRuntimeMemorySize(texture); Debug.Log( "Texture File Size: " + fileSize + " bytes" ); Debug.Log( "Texture Runtime Memory Size: " + memorySize + " bytes" ); } private static long GetTextureFileSize(Texture2D texture) { long fileSize = 0; Type textureUtilType = typeof (TextureImporter).Assembly.GetType( "UnityEditor.TextureUtil" ); MethodInfo getStorageMemorySizeLongMethod = textureUtilType.GetMethod( "GetStorageMemorySizeLong" , BindingFlags.Static | BindingFlags.Public); fileSize = ( long )getStorageMemorySizeLongMethod.Invoke( null , new object [] { texture }); return fileSize; } private static long GetTextureRuntimeMemorySize(Texture2D texture) { long memorySize = 0; Type textureUtilType = typeof (TextureImporter).Assembly.GetType( "UnityEditor.TextureUtil" ); MethodInfo getRuntimeMemorySizeLongMethod = textureUtilType.GetMethod( "GetRuntimeMemorySizeLong" , BindingFlags.Static | BindingFlags.Public); memorySize = ( long )getRuntimeMemorySizeLongMethod.Invoke( null , new object [] { texture }); return memorySize; } } |
注意事项
- 确保在使用反射访问UnityEditor.TextureUtil类之前,已经导入了UnityEditor命名空间和System.Reflection命名空间。
- 使用反射时,需要使用BindingFlags.Static | BindingFlags.Public来获取静态公共方法。
- 在示例代码中,我们使用了Texture2D类型的变量来表示Texture,你可以根据实际情况修改代码以适应不同的Texture类型。