Import/export improvements

Assets/Editor/ConvertNormalMaps.cs

@@ -0,0 +1,94 @@
+using UnityEngine;
+using UnityEditor;
+using System.IO;
+using Unity.Collections;
+
+public static class ConvertNormalMaps
+{
+    [MenuItem("Open Brush/Toolkit/Convert Bump Maps to Normal Maps")]
+    static void Convert()
+    {
+        foreach (Object obj in Selection.objects)
+        {
+            if (obj is Material)
+            {
+                Material material = (Material)obj;
+                Shader shader = material.shader;
+                int propertiesCount = ShaderUtil.GetPropertyCount(shader);
+
+                for (int j = 0; j < propertiesCount; j++)
+                {
+                    if (ShaderUtil.GetPropertyType(shader, j) == ShaderUtil.ShaderPropertyType.TexEnv)
+                    {
+                        string propertyName = ShaderUtil.GetPropertyName(shader, j);
+                        Texture texture = material.GetTexture(propertyName);
+
+                        if (texture is Texture2D normalMap)
+                        {
+                            string texturePath = AssetDatabase.GetAssetPath(normalMap);
+                            bool isNormal = ReimportTexture(texturePath, true);
+                            if (!isNormal) continue;
+                            Texture2D remappedTexture = new Texture2D(normalMap.width, normalMap.height);
+
+                            // Get the pixels from the source texture
+                            NativeArray<Color32> pixels = normalMap.GetPixelData<Color32>(0);
+
+                            for (int i = 0; i < pixels.Length; i++)
+                            {
+                                byte red = pixels[i].a;
+                                byte green = pixels[i].g;
+                                byte blue = 255; // pixels[i].b;
+                                byte alpha = 255; // pixels[i].r;
+                                pixels[i] = new Color32(red, green, blue, alpha);
+                            }
+                            remappedTexture.SetPixels32(pixels.ToArray());
+
+                            // Apply changes
+                            remappedTexture.Apply();
+
+                            File.WriteAllBytes(texturePath, remappedTexture.EncodeToPNG());
+                            Debug.Log("Exported Normal Map: " + texturePath);
+                            RemoveConversion(texturePath);
+                        }
+                        else
+                        {
+                            Debug.LogWarning("No normal map found in material: " + material.name);
+                        }
+                    }
+                }
+            }
+        }
+        AssetDatabase.Refresh();
+    }
+
+    private static bool ReimportTexture(string assetPath, bool isReadable)
+    {
+        TextureImporter textureImporter = AssetImporter.GetAtPath(assetPath) as TextureImporter;
+        if (textureImporter != null)
+        {
+            if (textureImporter.textureType != TextureImporterType.NormalMap)
+            {
+                return false;
+            }
+            textureImporter.isReadable = isReadable;
+            textureImporter.textureCompression = TextureImporterCompression.Uncompressed;
+            AssetDatabase.ImportAsset(assetPath, ImportAssetOptions.ForceUpdate);
+        }
+        return true;
+    }
+
+    private static bool RemoveConversion(string assetPath)
+    {
+        TextureImporter textureImporter = AssetImporter.GetAtPath(assetPath) as TextureImporter;
+        if (textureImporter != null)
+        {
+            if (textureImporter.textureType != TextureImporterType.NormalMap)
+            {
+                return false;
+            }
+            textureImporter.convertToNormalmap = false;
+            AssetDatabase.ImportAsset(assetPath, ImportAssetOptions.ForceUpdate);
+        }
+        return true;
+    }
+}

Assets/Editor/GlTF_EditorExporter.cs

@@ -233,7 +233,7 @@ private static int RunCommand(string command, params string[] commandArgs)
         {
             System.Diagnostics.Process proc = new System.Diagnostics.Process();
             proc.StartInfo = new System.Diagnostics.ProcessStartInfo(
-                command, string.Join(" ", commandArgs));
+                command, string.Join(" ", commandArgs.Select(arg => $"\"{arg}\"")));
             proc.StartInfo.RedirectStandardOutput = true;
             proc.StartInfo.RedirectStandardError = true;
             proc.StartInfo.UseShellExecute = false;

Assets/Models/SceneLightCone.obj

@@ -0,0 +1,103 @@
+# Blender 4.0.2
+# www.blender.org
+o Cone
+v 0.000000 1.000000 -2.000000
+v 0.195090 0.980785 -2.000000
+v 0.382683 0.923880 -2.000000
+v 0.555570 0.831470 -2.000000
+v 0.707107 0.707107 -2.000000
+v 0.831470 0.555570 -2.000000
+v 0.923880 0.382683 -2.000000
+v 0.980785 0.195090 -2.000000
+v 1.000000 0.000000 -2.000000
+v 0.980785 -0.195090 -2.000000
+v 0.923880 -0.382683 -2.000000
+v 0.831470 -0.555570 -2.000000
+v 0.707107 -0.707107 -2.000000
+v 0.555570 -0.831470 -2.000000
+v 0.382683 -0.923879 -2.000000
+v 0.195090 -0.980785 -2.000000
+v 0.000000 -1.000000 -2.000000
+v -0.195090 -0.980785 -2.000000
+v -0.382683 -0.923879 -2.000000
+v -0.555570 -0.831470 -2.000000
+v -0.707107 -0.707107 -2.000000
+v -0.831470 -0.555570 -2.000000
+v -0.923880 -0.382683 -2.000000
+v -0.980785 -0.195090 -2.000000
+v -1.000000 0.000000 -2.000000
+v -0.980785 0.195090 -2.000000
+v -0.923880 0.382683 -2.000000
+v -0.831470 0.555570 -2.000000
+v -0.707107 0.707107 -2.000000
+v -0.555570 0.831470 -2.000000
+v -0.382683 0.923880 -2.000000
+v -0.195090 0.980785 -2.000000
+v 0.000000 -0.000000 0.000000
+vn 0.0878 0.8910 0.4455
+vn 0.2599 0.8567 0.4455
+vn 0.4220 0.7896 0.4455
+vn 0.5680 0.6921 0.4455
+vn 0.6921 0.5680 0.4455
+vn 0.7896 0.4220 0.4455
+vn 0.8567 0.2599 0.4455
+vn 0.8910 0.0878 0.4455
+vn 0.8910 -0.0878 0.4455
+vn 0.8567 -0.2599 0.4455
+vn 0.7896 -0.4220 0.4455
+vn 0.6921 -0.5680 0.4455
+vn 0.5680 -0.6921 0.4455
+vn 0.4220 -0.7896 0.4455
+vn 0.2599 -0.8567 0.4455
+vn 0.0878 -0.8910 0.4455
+vn -0.0878 -0.8910 0.4455
+vn -0.2599 -0.8567 0.4455
+vn -0.4220 -0.7896 0.4455
+vn -0.5680 -0.6921 0.4455
+vn -0.6921 -0.5680 0.4455
+vn -0.7896 -0.4220 0.4455
+vn -0.8567 -0.2599 0.4455
+vn -0.8910 -0.0878 0.4455
+vn -0.8910 0.0878 0.4455
+vn -0.8567 0.2599 0.4455
+vn -0.7896 0.4220 0.4455
+vn -0.6921 0.5680 0.4455
+vn -0.5680 0.6921 0.4455
+vn -0.4220 0.7896 0.4455
+vn -0.0000 -0.0000 -1.0000
+vn -0.2599 0.8567 0.4455
+vn -0.0878 0.8910 0.4455
+s 0
+f 1//1 33//1 2//1
+f 2//2 33//2 3//2
+f 3//3 33//3 4//3
+f 4//4 33//4 5//4
+f 5//5 33//5 6//5
+f 6//6 33//6 7//6
+f 7//7 33//7 8//7
+f 8//8 33//8 9//8
+f 9//9 33//9 10//9
+f 10//10 33//10 11//10
+f 11//11 33//11 12//11
+f 12//12 33//12 13//12
+f 13//13 33//13 14//13
+f 14//14 33//14 15//14
+f 15//15 33//15 16//15
+f 16//16 33//16 17//16
+f 17//17 33//17 18//17
+f 18//18 33//18 19//18
+f 19//19 33//19 20//19
+f 20//20 33//20 21//20
+f 21//21 33//21 22//21
+f 22//22 33//22 23//22
+f 23//23 33//23 24//23
+f 24//24 33//24 25//24
+f 25//25 33//25 26//25
+f 26//26 33//26 27//26
+f 27//27 33//27 28//27
+f 28//28 33//28 29//28
+f 29//29 33//29 30//29
+f 30//30 33//30 31//30
+f 1//31 2//31 3//31 4//31 5//31 6//31 7//31 8//31 9//31 10//31 11//31 12//31 13//31 14//31 15//31 16//31 17//31 18//31 19//31 20//31 21//31 22//31 23//31 24//31 25//31 26//31 27//31 28//31 29//31 30//31 31//31 32//31
+f 31//32 33//32 32//32
+f 32//33 33//33 1//33