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using UnityEngine;
using UnityEditor;
using System.Collections.Generic;
using System.Linq;
public class ImageSequenceToTexture3D : EditorWindow
{
private string sourcePath = "";
private string textureName = "Texture3DFromSequence";
private FilterMode filterMode = FilterMode.Bilinear;
private TextureWrapMode wrapMode = TextureWrapMode.Repeat;
[MenuItem("Tools/yum_food/Image Sequence to Texture3D")]
public static void ShowWindow()
{
GetWindow<ImageSequenceToTexture3D>("Image Sequence to Texture3D");
}
private void OnGUI()
{
GUILayout.Label("Image Sequence to Texture3D Converter", EditorStyles.boldLabel);
EditorGUILayout.HelpBox("Select a folder containing the image sequence (sorted by filename)", MessageType.Info);
EditorGUILayout.BeginHorizontal();
sourcePath = EditorGUILayout.TextField("Source Folder", sourcePath);
if (GUILayout.Button("Browse", GUILayout.Width(60)))
{
string path = EditorUtility.OpenFolderPanel("Select Image Sequence Folder", "", "");
if (!string.IsNullOrEmpty(path))
{
sourcePath = path;
}
}
EditorGUILayout.EndHorizontal();
textureName = EditorGUILayout.TextField("Texture Name", textureName);
filterMode = (FilterMode)EditorGUILayout.EnumPopup("Filter Mode", filterMode);
wrapMode = (TextureWrapMode)EditorGUILayout.EnumPopup("Wrap Mode", wrapMode);
if (GUILayout.Button("Generate 3D Texture"))
{
if (ValidateInputs())
{
Generate3DTexture();
}
}
}
private bool ValidateInputs()
{
if (string.IsNullOrEmpty(sourcePath))
{
EditorUtility.DisplayDialog("Error", "Please select a source folder.", "OK");
return false;
}
string[] files = GetImageFiles();
if (files.Length == 0)
{
EditorUtility.DisplayDialog("Error", "No supported image files found in the selected folder.", "OK");
return false;
}
// Load first image to check dimensions
Texture2D firstImage = LoadImage(files[0]);
int width = firstImage.width;
int height = firstImage.height;
DestroyImmediate(firstImage);
// Verify all images have the same dimensions
for (int i = 1; i < files.Length; i++)
{
Texture2D img = LoadImage(files[i]);
if (img.width != width || img.height != height)
{
DestroyImmediate(img);
EditorUtility.DisplayDialog("Error",
$"All images must have the same dimensions. Expected {width}x{height}, but image {files[i]} is {img.width}x{img.height}",
"OK");
return false;
}
DestroyImmediate(img);
}
return true;
}
private string[] GetImageFiles()
{
string[] files = System.IO.Directory.GetFiles(sourcePath, "*.*")
.Where(file => file.ToLower().EndsWith(".png") ||
file.ToLower().EndsWith(".jpg") ||
file.ToLower().EndsWith(".jpeg"))
.OrderBy(file => file)
.ToArray();
return files;
}
private Texture2D LoadImage(string path)
{
byte[] fileData = System.IO.File.ReadAllBytes(path);
Texture2D tex = new Texture2D(2, 2);
tex.LoadImage(fileData);
return tex;
}
private void Generate3DTexture()
{
string[] files = GetImageFiles();
if (files.Length == 0) return;
Texture2D firstImage = LoadImage(files[0]);
int width = firstImage.width;
int height = firstImage.height;
int depth = files.Length;
DestroyImmediate(firstImage);
// Create the 3D texture
Texture3D texture3D = new Texture3D(width, height, depth, TextureFormat.RGBA32, false);
texture3D.filterMode = filterMode;
texture3D.wrapMode = wrapMode;
// Prepare the color array
Color[] colors = new Color[width * height * depth];
// Copy the pixel data from each source image
for (int z = 0; z < depth; z++)
{
Debug.Log($"Processing layer {z + 1} of {depth}: {System.IO.Path.GetFileName(files[z])}");
Texture2D img = LoadImage(files[z]);
Color[] imageColors = img.GetPixels();
System.Array.Copy(imageColors, 0, colors, z * width * height, width * height);
DestroyImmediate(img);
}
texture3D.SetPixels(colors);
texture3D.Apply();
// Save the texture asset
string path = $"Assets/{textureName}.asset";
AssetDatabase.CreateAsset(texture3D, path);
AssetDatabase.SaveAssets();
AssetDatabase.Refresh();
EditorUtility.DisplayDialog("Success", $"3D texture generated and saved at {path}", "OK");
}
}
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