Unity ARCore动态增加识别图
2024-09-18 17:21:37
项目需要，有两点要求说明一下
1.如果你的图片是下载生成的，那没什么问题
2.如果你的识别图是存储在APK包里的话需要调整图片属性：
代码如下：
using QFramework;
using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using Unity.Jobs;
using UnityEditor;
using UnityEngine; using UnityEngine.XR.ARFoundation;
using UnityEngine.XR.ARSubsystems; namespace UnityEngine.XR.ARFoundation.Samples
{
/// <summary>
/// Adds images to the reference library at runtime.
/// </summary>
[RequireComponent(typeof(ARTrackedImageManager))]
public class DynamicLibrary : MonoSingleton<DynamicLibrary>
{
[Serializable]
public class ImageData
{
[SerializeField, Tooltip("The source texture for the image. Must be marked as readable.")]
Texture2D m_Texture; public Texture2D texture
{
get => m_Texture;
set => m_Texture = value; } [SerializeField, Tooltip("The name for this image.")]
string m_Name; public string name
{
get => m_Name;
set => m_Name = value;
} [SerializeField, Tooltip("The width, in meters, of the image in the real world.")]
float m_Width; public float width
{
get => m_Width;
set => m_Width = value;
} public AddReferenceImageJobState jobState { get; set; }
} [SerializeField, Tooltip("The set of images to add to the image library at runtime")]
ImageData[] m_Images; /// <summary>
/// The set of images to add to the image library at runtime
/// </summary>
public ImageData[] images
{
get => m_Images;
set => m_Images = value;
} enum State
{
NoImagesAdded,
AddImagesRequested,
AddingImages,
Done,
Error
} State m_State; string m_ErrorMessage = ""; StringBuilder m_StringBuilder = new StringBuilder(); private void Start()
{ //var pathName = Application.persistentDataPath + "/3.jpg";
//Debug.Log(pathName);
//var bytes = ReadFile(pathName);
//int width = Screen.width;
//int height = Screen.height;
//Texture2D texture = new Texture2D(width, height, TextureFormat.RGB24, false);
//texture.LoadImage(bytes);
//texture = SettingTexture(texture); //ImageData data = new ImageData();
//data.texture = texture;
//data.name = "3Test";
//data.width = 0.5f; //m_Images[0] = data;
manager = GetComponent<ARTrackedImageManager>();
}
public void AddImageTracked(List<string> list_SavePath)
{
m_Images = new ImageData[list_SavePath.Count]; for (int i = 0; i < list_SavePath.Count; i++)
{
int width = Screen.width;
int height = Screen.height;
var bytes = ReadFile(list_SavePath[i]);
Texture2D texture = new Texture2D(width, height, TextureFormat.RGB24, false);
texture.LoadImage(bytes);
texture = SettingTexture(texture);
ImageData data = new ImageData();
data.texture = texture;
data.name = i.ToString();
data.width = 0.5f;
m_Images[i] = data;
}
m_State = State.AddImagesRequested;
}
public void AddImageTracked(List<string> list_SavePath,Dictionary<string,Sprite>dicImageTracked)
{
m_Images = new ImageData[list_SavePath.Count]; Debug.Log(list_SavePath.Count +" "+ dicImageTracked.Count); for (int i = 0; i < list_SavePath.Count; i++)
{
Debug.Log("SavePath "+list_SavePath[i]);
} foreach (var item in dicImageTracked)
{
Debug.Log(item.Key);
} for (int i = 0; i < list_SavePath.Count; i++)
{
if (dicImageTracked.ContainsKey(list_SavePath[i]))
{
int width = dicImageTracked[list_SavePath[i]].texture.width;
int height = dicImageTracked[list_SavePath[i]].texture.height;
var bytes = dicImageTracked[list_SavePath[i]].texture.EncodeToPNG();
Texture2D texture = new Texture2D(width, height, TextureFormat.RGB24, false);
texture.LoadImage(bytes);
texture = SettingTexture(texture);
ImageData data = new ImageData();
data.texture = texture;
data.name = i.ToString();
data.width = 0.5f;
m_Images[i] = data;
}
else
Debug.LogError("Image Not SavePath"); }
m_State = State.AddImagesRequested;
} byte[] ReadFile(string filePath)
{
var fs = new FileStream(filePath, FileMode.Open, FileAccess.Read);
fs.Seek(0, SeekOrigin.Begin);
var binary = new byte[fs.Length];
fs.Read(binary, 0, binary.Length);
fs.Close();
return binary;
}
void OnGUI()
{ var fontSize = 50;
GUI.skin.button.fontSize = fontSize;
GUI.skin.label.fontSize = fontSize; float margin = 100; GUILayout.BeginArea(new Rect(margin, margin, Screen.width - margin * 2, Screen.height - margin * 2)); switch (m_State)
{
case State.NoImagesAdded:
{
//if (GUILayout.Button("Add images" + manager.trackables.count))
//{
// m_State = State.AddImagesRequested;
//} break;
}
case State.AddingImages:
{
m_StringBuilder.Clear();
m_StringBuilder.AppendLine("Add image status:");
foreach (var image in m_Images)
{
m_StringBuilder.AppendLine($"\t{image.name}: {(image.jobState.status.ToString())}");
}
// GUILayout.Label(m_StringBuilder.ToString());
break;
}
case State.Done:
{
// GUILayout.Label("All images added " + manager.trackables.count);
break;
}
case State.Error:
{
GUILayout.Label(m_ErrorMessage);
break;
}
} GUILayout.EndArea();
} void SetError(string errorMessage)
{
m_State = State.Error;
m_ErrorMessage = $"Error: {errorMessage}";
}
ARTrackedImageManager manager;
void Update()
{
switch (m_State)
{
case State.AddImagesRequested:
{
if (m_Images == null)
{
SetError("No images to add.");
break;
} manager = GetComponent<ARTrackedImageManager>();
if (manager == null)
{
SetError($"No {nameof(ARTrackedImageManager)} available.");
break;
} // You can either add raw image bytes or use the extension method (used below) which accepts
// a texture. To use a texture, however, its import settings must have enabled read/write
// access to the texture.
for (int i = 0; i < m_Images.Length; i++)
{
if (!m_Images[i].texture.isReadable)
{
Texture2D tex = SettingTexture(m_Images[i].texture);
m_Images[i].texture = tex;
}
} foreach (var image in m_Images)
{
if (!image.texture.isReadable)
{ SetError($"Image {image.name} must be readable to be added to the image library.");
break; }
// else
// Debug.LogError(" IsReadable = true "+image.name);
} if (manager.referenceLibrary is MutableRuntimeReferenceImageLibrary mutableLibrary)
{
try
{
foreach (var image in m_Images)
{
// Note: You do not need to do anything with the returned JobHandle, but it can be
// useful if you want to know when the image has been added to the library since it may
// take several frames.
image.jobState = mutableLibrary.ScheduleAddImageWithValidationJob(image.texture, image.name, image.width);
} m_State = State.AddingImages;
}
catch (InvalidOperationException e)
{
SetError($"ScheduleAddImageJob threw exception: {e.Message}");
}
}
else
{
SetError($"The reference image library is not mutable.");
} break;
}
case State.AddingImages:
{
// Check for completion
var done = true;
foreach (var image in m_Images)
{
if (!image.jobState.jobHandle.IsCompleted)
{
done = false;
break;
}
} if (done)
{
m_State = State.Done;
GameManager.Instance.finish = true;
} break;
}
}
} Texture2D SettingTexture( Texture2D texture)
{
//TextureImporter ti = (TextureImporter)TextureImporter.GetAtPath(AssetDatabase.GetAssetPath(texture));
//ti.isReadable = true;
//AssetDatabase.ImportAsset(AssetDatabase.GetAssetPath(texture)); Texture2D tex = new Texture2D(texture.width, texture.height, TextureFormat.RGB24,false);
byte[] data = texture.EncodeToPNG();
tex.LoadImage(data);
Debug.Log(tex.isReadable);
return tex;
}
} }
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