squash commits

2025-01-07 18:54:46 +02:00
parent 855639487b
commit 62c0a21987
3632 changed files with 708443 additions and 999 deletions
@@ -0,0 +1,92 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEditor;
+using System;
+
+public class ConvertToSubstance : EditorWindow
+{
+    private MonoScript targetMonoScript;
+    private Vector2 scrollPos;
+    Texture2D texture;
+
+    [MenuItem("UMA/Tools/Convert ZB Alpha to Substance Alpha")]
+    public static void ShowWindow()
+    {
+        GetWindow<ConvertToSubstance>(true, "Convert Grayscale to Subtance Alpha", true);
+    }
+
+    void OnGUI()
+    {
+        texture = (Texture2D)EditorGUILayout.ObjectField("Texture (2D)", texture, typeof(Texture2D), false);
+        if (GUILayout.Button("Convert"))
+        {
+            if (texture == null)
+            {
+                EditorUtility.DisplayDialog("Error", "Please select a texture", "OK");
+                return;
+            }
+            string path = EditorUtility.SaveFilePanel("Save Texture", "","file.png", "png");
+
+            if (!string.IsNullOrEmpty(path))
+            {
+                var newTex = ConvertTexture(texture);
+                if (newTex == null)
+                {
+                    EditorUtility.DisplayDialog("Error", "Texture is not readable", "OK");
+                    return;
+                }
+                byte[] bytes = newTex.EncodeToPNG();
+                System.IO.File.WriteAllBytes(path, bytes);
+                GameObject.DestroyImmediate(newTex);
+            }
+        }
+    }
+
+    private static Texture2D ConvertTexture(Texture TextureToConvert)
+    {
+        if (TextureToConvert != null)
+        {
+            Texture2D tex = (Texture2D)TextureToConvert;
+            Color32[] pixels = tex.GetPixels32();
+            byte alphabase = pixels[0].r;
+
+            for (int i = 0; i < pixels.Length; i++)
+            {
+                Color32 pixel = pixels[i];
+                float alpha = 1.0f;
+                float dist = Mathf.Abs(pixel.r - alphabase);
+                if (pixel.r > alphabase)
+                {
+                     
+                    float upperRange = 255 - alphabase;
+                    if (upperRange == 0)
+                    {
+                        alpha = 1;
+                    }
+                    else
+                    {
+                        alpha = dist / upperRange;
+                    }
+                }
+                else
+                {
+                    float lowerRange = alphabase;
+                    if (lowerRange == 0)
+                    {
+                        alpha = 0;
+                    }
+                    else
+                    {
+                        alpha = dist / lowerRange;
+                    }
+                }
+                pixels[i].a = (byte)(alpha * 255);
+            }
+            Texture2D newTex = new Texture2D(tex.width, tex.height, TextureFormat.RGBA32,false);
+            newTex.SetPixels32(pixels);
+            newTex.Apply();
+        }
+        return null;
+    }
+}