Change Disable Tile Culling Default to False

Core/Data/GlobalSettings.cs

@@ -17,6 +17,11 @@ internal class GlobalConfig
     /// GlobalSettings.DefaultOutputDirectory. Ignored while the directory does not exist (see EffectiveOutputDirectory).
     /// </summary>
     public string? OutputDirectory { get; set; }
+    /// <summary>
+    /// File name format template chosen in the render configuration window; null or empty selects
+    /// GlobalSettings.DefaultFileNameFormat ("{date} {time}").
+    /// </summary>
+    public string? FileNameFormat { get; set; }
     /// <summary>Name of the preset last selected or saved in the render configuration window; selected again when it opens.</summary>
     public string? LastPresetName { get; set; }
     /// <summary>
@@ -72,6 +77,18 @@ internal static class GlobalSettings
         }
     }
 
+    /// <summary>Default file name format template: "{date} {time}".</summary>
+    public const string DefaultFileNameFormat = "{date} {time}";
+
+    /// <summary>
+    /// File name format used for renders without an explicit output path: Current.FileNameFormat when it is set,
+    /// otherwise <see cref="DefaultFileNameFormat"/>.
+    /// </summary>
+    public static string EffectiveFileNameFormat =>
+        string.IsNullOrWhiteSpace(Current.FileNameFormat)
+            ? DefaultFileNameFormat
+            : Current.FileNameFormat;
+
     static GlobalSettings()
     {
         Load();

Core/RenderManager.cs

@@ -940,6 +940,14 @@ internal class RenderManager : MonoBehaviour
         // Cancelled or failed during the countdown: do not start the encoder
         if (stage != RenderStage.OnScene) yield break;
 
+        if (Configuration.AdvancedConfig.DisableTileCulling && scrLevelMaker.instance)
+        {
+            foreach (var floor in scrLevelMaker.instance.listFloors)
+            {
+                if (floor) floor.enabled = true;
+            }
+        }
+
         frameCount = 0; framesSent = 0;
         _renderStopwatch.Restart();
             
@@ -1045,9 +1053,20 @@ internal class RenderManager : MonoBehaviour
         var startTime = DateTime.Now;
         if (RenderContext.OutputPath != null) CurrentOutPath = RenderContext.OutputPath;
         else {
-            var fileName = startTime.ToString("yyyy-MM-dd HH-mm-ss") +
-                           $".{Configuration.AdvancedConfig.FileExtension.TrimStart('.').ToLower()}";
-            CurrentOutPath = Path.Combine(GlobalSettings.EffectiveOutputDirectory, fileName);
+            var format = GlobalSettings.EffectiveFileNameFormat;
+            var ext = Configuration.AdvancedConfig.FileExtension;
+            var baseName = RenderFileNameUtil.FormatFileName(
+                format,
+                startTime,
+                Configuration,
+                GlobalSettings.Current.LastPresetName,
+                levelPath
+            );
+            CurrentOutPath = RenderFileNameUtil.GetUniqueFilePath(
+                GlobalSettings.EffectiveOutputDirectory,
+                baseName,
+                ext
+            );
         }
 
         FFmpegNativeEncoder? videoFFmpeg = null;

Data/RenderConfig.cs

@@ -102,14 +102,24 @@ public class AdvancedConfig
     /// </summary>
     public bool HighResBloomCorrection { get; set; } = false;
 
-    // === [MARKER: FIX_SET_FRAMERATE_BUG START] ===
     /// <summary>
     /// When true, fixes in-game and render bugs during SetFramerate events (where objects disappear on the first frame
     /// or parallax/tiles lag behind) by deferring manual camera rendering to the end of the frame after all LateUpdates.
     /// Default true.
     /// </summary>
     public bool FixCustomFrameRate { get; set; } = true;
-    // === [MARKER: FIX_SET_FRAMERATE_BUG END] ===
+
+    /// <summary>
+    /// When true, prevents floor tiles from being disabled when outside the camera frustum (scrFloor.OnBecameInvisible),
+    /// eliminating the 1-frame update lag/glitch when tiles enter the screen. Default false.
+    /// </summary>
+    public bool DisableTileCulling { get; set; } = false;
+
+    /// <summary>
+    /// When true, hides placeholder decorations (default tree-in-circle sprite) that failed to load or are empty.
+    /// Default false.
+    /// </summary>
+    public bool HideFailedDecorations { get; set; } = false;
 
     /// <summary>File extension of the default output file name, without the dot (e.g. "mkv", "mp4"); selects the container.</summary>
     public string FileExtension { get; set; } = "mkv";
@@ -137,9 +147,9 @@ public class AdvancedConfig
         ProcessAudio = source.ProcessAudio;
         NonTile = source.NonTile;
         HighResBloomCorrection = source.HighResBloomCorrection;
-        // === [MARKER: FIX_SET_FRAMERATE_BUG START] ===
         FixCustomFrameRate = source.FixCustomFrameRate;
-        // === [MARKER: FIX_SET_FRAMERATE_BUG END] ===
+        DisableTileCulling = source.DisableTileCulling;
+        HideFailedDecorations = source.HideFailedDecorations;
         FileExtension = source.FileExtension;
         firePlanetColor = source.firePlanetColor;
         icePlanetColor = source.icePlanetColor;

Localization/Locale/en.json

@@ -39,11 +39,16 @@
   "ui.render_config.output_dir": "Output Directory",
   "ui.render_config.browse": "Browse...",
   "ui.render_config.reset_default": "Reset to Default",
+  "ui.render_config.filename_format": "Filename Format",
+  "ui.render_config.filename_format_hint": "Tags: {song}, {artist}, {author}, {date}, {time}, {resolution}, {fps}, {preset}",
+  "ui.render_config.reset_filename_default": "Reset to Default",
   "ui.render_config.file_extension": "File Extension",
   "ui.render_config.process_audio": "Process Audio",
   "ui.render_config.non_tile": "Non-Tile Mode",
   "ui.render_config.high_res_bloom_correction": "High-Resolution Bloom Correction",
   "ui.render_config.fix_custom_frame_rate": "Fix Custom FPS Render Timing",
+  "ui.render_config.disable_tile_culling": "Disable Tile Culling",
+  "ui.render_config.hide_failed_decorations": "Hide Failed Decorations",
   "ui.render_config.random_seed": "Random Seed (Optional)",
   "ui.render_config.validation_title": "Invalid Settings",
   "ui.render_config.validation_error": "Please check your input values:\n- Width and Height must be integers > 0\n- Render FPS and Video FPS must be > 0\n- Delay After End must be >= 0",

Localization/Locale/ko.json

@@ -39,11 +39,16 @@
   "ui.render_config.output_dir": "출력 디렉토리",
   "ui.render_config.browse": "찾아보기...",
   "ui.render_config.reset_default": "기본값으로 초기화",
+  "ui.render_config.filename_format": "파일 이름 형식",
+  "ui.render_config.filename_format_hint": "태그: {song}, {artist}, {author}, {date}, {time}, {resolution}, {fps}, {preset}",
+  "ui.render_config.reset_filename_default": "기본값으로 초기화",
   "ui.render_config.file_extension": "파일 확장자",
   "ui.render_config.process_audio": "오디오 처리",
   "ui.render_config.non_tile": "논타일 모드",
   "ui.render_config.high_res_bloom_correction": "고해상도 블룸 보정",
   "ui.render_config.fix_custom_frame_rate": "커스텀 FPS 렌더 타이밍 보정",
+  "ui.render_config.disable_tile_culling": "타일 컬링 비활성화",
+  "ui.render_config.hide_failed_decorations": "로딩 실패한 장식 숨기기",
   "ui.render_config.random_seed": "랜덤 시드 (선택 사항)",
   "ui.render_config.validation_title": "설정 오류",
   "ui.render_config.validation_error": "입력값을 확인해 주세요:\n- 너비와 높이는 0보다 큰 정수여야 합니다.\n- 렌더 FPS와 영상 FPS는 0보다 커야 합니다.\n- 종료 후 대기 시간은 0 이상이어야 합니다.",

Patch/Game/CustomFrameRateDeferPatch.cs

@@ -6,7 +6,6 @@ using UnityEngine;
 
 namespace ADOFAIRenderer.Patch.Game;
 
-// === [MARKER: FIX_SET_FRAMERATE_BUG START] ===
 /// <summary>
 /// Fixes the in-game and render bug where objects (floors, decorations, planets) disappear on the first frame of
 /// a SetFramerate event (due to camera Z=0 near clip culling) and where parallax/tiles lag behind on subsequent frames.
@@ -112,4 +111,3 @@ internal class CustomFrameRateDeferredRunner : MonoBehaviour
         CustomFrameRateDeferPatch.ExecuteDeferredRender();
     }
 }
-// === [MARKER: FIX_SET_FRAMERATE_BUG END] ===

Patch/Game/DecorationPatch.cs

@@ -0,0 +1,93 @@
+using ADOFAIRenderer.Core;
+using HarmonyLib;
+using UnityEngine;
+
+namespace ADOFAIRenderer.Patch.Game;
+
+/// <summary>
+/// Patches decoration rendering to hide decorations that failed to load (or are empty) and fell back to the default
+/// placeholder sprite (tree inside a circle) during a render when <c>AdvancedConfig.HideFailedDecorations</c> is enabled.
+/// </summary>
+public static class DecorationPatch
+{
+    /// <summary>
+    /// True while a render is loading or active and <c>HideFailedDecorations</c> is enabled in the configuration.
+    /// </summary>
+    public static bool IsEnabled =>
+        RenderManager.Instance &&
+        RenderManager.Instance.stage >= RenderStage.Load &&
+        RenderManager.Instance.Configuration?.AdvancedConfig?.HideFailedDecorations == true;
+
+    /// <summary>
+    /// Checks whether the given sprite is the default placeholder or not-found sprite of the decoration manager.
+    /// </summary>
+    public static bool IsPlaceholderSprite(Sprite? sprite, scrDecorationManager? manager = null)
+    {
+        if (!sprite) return false;
+        manager ??= scrDecorationManager.instance;
+        if (!manager) return false;
+
+        return sprite == manager.defaultSprite || (manager.notFoundSprite && sprite == manager.notFoundSprite);
+    }
+
+    /// <summary>
+    /// Sweeps all visual decorations in <c>scrDecorationManager.instance.allDecorations</c> and clears any placeholder sprites.
+    /// Called from <see cref="scnGamePatch.ProcessFloors"/> when <c>scnGame.Play</c> runs.
+    /// </summary>
+    public static void ProcessDecorations()
+    {
+        if (!IsEnabled) return;
+        var manager = scrDecorationManager.instance;
+        if (!manager || manager.allDecorations == null) return;
+
+        foreach (var dec in manager.allDecorations)
+        {
+            if (dec is scrVisualDecoration visualDec && visualDec.spriteRenderer)
+            {
+                if (IsPlaceholderSprite(visualDec.spriteRenderer.sprite, manager))
+                {
+                    visualDec.SetSprite((Sprite)null!);
+                }
+            }
+        }
+    }
+
+    /// <summary>
+    /// Prefix of <c>scrVisualDecoration.SetSprite(Sprite)</c>: replaces placeholder default/not-found sprites with null
+    /// when <see cref="IsEnabled"/> is true.
+    /// </summary>
+    [HarmonyPatch(typeof(scrVisualDecoration), nameof(scrVisualDecoration.SetSprite), typeof(Sprite))]
+    // ReSharper disable once InconsistentNaming
+    public static class VisualDecorationSetSpritePatch
+    {
+        [HarmonyPrefix]
+        public static void Prefix(scrVisualDecoration __instance, ref Sprite? sprite)
+        {
+            if (!IsEnabled || !sprite) return;
+
+            if (IsPlaceholderSprite(sprite, __instance.manager))
+            {
+                sprite = null;
+            }
+        }
+    }
+
+    /// <summary>
+    /// Prefix of <c>scrDecorationManager.ShowEmptyDecorations(bool)</c>: suppresses showing placeholder default sprites
+    /// during render when <see cref="IsEnabled"/> is true.
+    /// </summary>
+    [HarmonyPatch(typeof(scrDecorationManager), nameof(scrDecorationManager.ShowEmptyDecorations))]
+    public static class ShowEmptyDecorationsPatch
+    {
+        [HarmonyPrefix]
+        public static bool Prefix(bool show)
+        {
+            if (show && IsEnabled)
+            {
+                return false;
+            }
+
+            return true;
+        }
+    }
+}

Patch/Game/scnGamePatch.cs

@@ -30,8 +30,21 @@ public static class scnGamePatch
     [HarmonyPatch("Play")]
     public static void ProcessFloors()
     {
-        var nonTile = RenderManager.Instance.stage >= RenderStage.Load &&
-                      RenderManager.Instance.Configuration.AdvancedConfig.NonTile;
+        if (RenderManager.Instance &&
+            RenderManager.Instance.stage >= RenderStage.Load &&
+            RenderManager.Instance.Configuration.AdvancedConfig.DisableTileCulling)
+        {
+            foreach (var floor in scrLevelMaker.instance.listFloors)
+            {
+                if (floor) floor.enabled = true;
+            }
+        }
+
+        DecorationPatch.ProcessDecorations();
+
+        var nonTile = RenderManager.Instance &&
+                      RenderManager.Instance.stage >= RenderStage.Load &&
+                      RenderManager.Instance.Configuration?.AdvancedConfig?.NonTile == true;
 
         if (!nonTile) return;
         foreach (var floor in scrLevelMaker.instance.listFloors)

Patch/Game/scrFloorPatch.cs

@@ -33,4 +33,41 @@ public class scrFloorPatch
                       RenderManager.Instance.Configuration.AdvancedConfig.NonTile;
         return !nonTile;
     }
+
+    /// <summary>
+    /// Postfix of <c>scrFloor.Start</c>.
+    /// The game sets <c>enabled = isVisible</c> in Start(), which disables all off-screen tiles right at spawn.
+    /// When <c>DisableTileCulling</c> is enabled, force every floor to remain enabled.
+    /// </summary>
+    [HarmonyPostfix]
+    [HarmonyPatch("Start")]
+    public static void ForceEnableOnStart(scrFloor __instance)
+    {
+        if (RenderManager.Instance &&
+            RenderManager.Instance.stage >= RenderStage.Load &&
+            RenderManager.Instance.Configuration.AdvancedConfig.DisableTileCulling)
+        {
+            __instance.enabled = true;
+        }
+    }
+
+    /// <summary>
+    /// Prefix of <c>scrFloor.OnBecameInvisible</c>.
+    /// Skips disabling the floor component (<c>enabled = false</c>) while rendering with
+    /// <c>AdvancedConfig.DisableTileCulling</c> enabled, preventing the 1-frame update lag/glitch
+    /// when tiles enter the camera view.
+    /// </summary>
+    [HarmonyPrefix]
+    [HarmonyPatch("OnBecameInvisible")]
+    // ReSharper disable once InconsistentNaming
+    public static bool PreventTileCulling(scrFloor __instance)
+    {
+        if (RenderManager.Instance &&
+            RenderManager.Instance.stage >= RenderStage.Load &&
+            RenderManager.Instance.Configuration.AdvancedConfig.DisableTileCulling)
+        {
+            return false;
+        }
+        return true;
+    }
 }

RenderMod.cs

@@ -9,7 +9,7 @@ using MelonLoader.Utils;
 using UnityEngine;
 using Object = UnityEngine.Object;
 
-[assembly: MelonInfo(typeof(RenderMod), "ADOFAI Renderer", "0.3.2-INDEV", "ADOFAI Editor Forum")]
+[assembly: MelonInfo(typeof(RenderMod), "ADOFAI Renderer", "0.3.3-INDEV", "ADOFAI Editor Forum")]
 [assembly: MelonGame("7th Beat Games", "A Dance of Fire and Ice")]
 
 namespace ADOFAIRenderer;

UI/Window/RenderConfigWindow.cs

@@ -135,14 +135,19 @@ internal static class RenderConfigWindow
     /// </summary>
     private static O5InputField? _outputDirInput;
 
+    /// <summary>
+    /// File name format template input. Bound to <c>GlobalSettings.Current.FileNameFormat</c>.
+    /// </summary>
+    private static O5InputField? _fileNameFormatInput;
+
     private static O5Dropdown<string>? _fileExtensionDropdown;
     private static O5InputField? _randomSeedInput;
     private static O5Toggle? _processAudioToggle;
     private static O5Toggle? _nonTileToggle;
     private static O5Toggle? _highResBloomCorrectionToggle;
-    // === [MARKER: FIX_SET_FRAMERATE_BUG START] ===
     private static O5Toggle? _fixCustomFrameRateToggle;
-    // === [MARKER: FIX_SET_FRAMERATE_BUG END] ===
+    private static O5Toggle? _disableTileCullingToggle;
+    private static O5Toggle? _hideFailedDecorationsToggle;
 
     // Planet color overrides: the toggle enables the override, the picker holds the color. A disabled toggle stores
     // null in AdvancedConfig (no override is applied by PersistencePatch) and blocks the picker.
@@ -698,6 +703,43 @@ internal static class RenderConfigWindow
             }
         );
 
+        // Filename format template: typing updates GlobalSettings.Current.FileNameFormat in memory only.
+        _fileNameFormatInput = CreateFullWidthInputField(
+            ctx, globalContent,
+            "ui.render_config.filename_format",
+            GlobalSettings.DefaultFileNameFormat,
+            GlobalSettings.EffectiveFileNameFormat,
+            "input_filename_format",
+            val =>
+            {
+                var trimmed = val?.Trim() ?? string.Empty;
+                if (string.IsNullOrWhiteSpace(trimmed) ||
+                    string.Equals(trimmed, GlobalSettings.DefaultFileNameFormat, StringComparison.Ordinal))
+                {
+                    GlobalSettings.Current.FileNameFormat = null;
+                }
+                else
+                {
+                    GlobalSettings.Current.FileNameFormat = trimmed;
+                }
+            }
+        );
+
+        var fnHint = CreateLabel(ctx, globalContent, "ui.render_config.filename_format_hint", 11f);
+        fnHint.color = new Color(ctx.Theme.TextDim.r, ctx.Theme.TextDim.g, ctx.Theme.TextDim.b, ctx.Theme.TextDim.a * 0.7f);
+
+        CreateButton(
+            ctx, globalContent,
+            "ui.render_config.reset_filename_default",
+            "btn_reset_filename_format",
+            () =>
+            {
+                _fileNameFormatInput.Set(GlobalSettings.DefaultFileNameFormat);
+                GlobalSettings.Current.FileNameFormat = null;
+                GlobalSettings.Save();
+            }
+        );
+
         // ---------------------------------------------------------------------------------------------
         // Section 6: Advanced Settings card (RenderConfig.AdvancedConfig)
         //   File Extension | Random Seed
@@ -761,6 +803,22 @@ internal static class RenderConfigWindow
             generateLabel: false
         );
         
+        // Disable Tile Culling (AdvancedConfig.DisableTileCulling): prevents tiles from being disabled outside the frustum
+        _disableTileCullingToggle = CreateToggleField(
+            ctx, CreateFieldSlot(advLeft),
+            labelKey: "",
+            defaultValue: false,
+            value: config.AdvancedConfig.DisableTileCulling,
+            toggleTextKey: "ui.render_config.disable_tile_culling",
+            id: "toggle_disable_tile_culling",
+            onChanged: val =>
+            {
+                config.AdvancedConfig.DisableTileCulling = val;
+                MarkConfigModified();
+            },
+            generateLabel: false
+        );
+
         // Random Seed (AdvancedConfig.RandomSeed): integer passed to UnityEngine.Random.InitState before the game scene
         // loads; empty text stores null (no seeding). Text that is neither empty nor an integer keeps the previous value.
         _randomSeedInput = CreateInputField(
@@ -794,7 +852,6 @@ internal static class RenderConfigWindow
             generateLabel: false
         );
         
-        // === [MARKER: FIX_SET_FRAMERATE_BUG START] ===
         // Fix SetFramerate Render Timing (AdvancedConfig.FixCustomFrameRate): defers manual camera rendering to frame end
         _fixCustomFrameRateToggle = CreateToggleField(
             ctx, CreateFieldSlot(advRight),
@@ -810,7 +867,22 @@ internal static class RenderConfigWindow
             },
             generateLabel: false
         );
-        // === [MARKER: FIX_SET_FRAMERATE_BUG END] ===
+
+        // Hide Failed Decorations (AdvancedConfig.HideFailedDecorations): hides placeholder tree decorations when decoration images fail to load
+        _hideFailedDecorationsToggle = CreateToggleField(
+            ctx, CreateFieldSlot(advRight),
+            labelKey: "",
+            defaultValue: false,
+            value: config.AdvancedConfig.HideFailedDecorations,
+            toggleTextKey: "ui.render_config.hide_failed_decorations",
+            id: "toggle_hide_failed_decorations",
+            onChanged: val =>
+            {
+                config.AdvancedConfig.HideFailedDecorations = val;
+                MarkConfigModified();
+            },
+            generateLabel: false
+        );
         
         // 7-1. Planet Color Settings (Optional).
         // For each planet: the toggle turns the override on/off (off stores null and blocks/collapses the picker);
@@ -1015,15 +1087,16 @@ internal static class RenderConfigWindow
         _audioBitrateSlider?.Set(config.AudioConfig.AudioBitrate / 1000.0, false, noFilter: true);
 
         _outputDirInput?.Set(GlobalSettings.EffectiveOutputDirectory, false);
+        _fileNameFormatInput?.Set(GlobalSettings.EffectiveFileNameFormat, false);
 
         _fileExtensionDropdown?.Set(config.AdvancedConfig.FileExtension, false);
         _randomSeedInput?.Set(config.AdvancedConfig.RandomSeed?.ToString() ?? "", false);
         _processAudioToggle?.Set(config.AdvancedConfig.ProcessAudio, false);
         _nonTileToggle?.Set(config.AdvancedConfig.NonTile, false);
         _highResBloomCorrectionToggle?.Set(config.AdvancedConfig.HighResBloomCorrection, false);
-        // === [MARKER: FIX_SET_FRAMERATE_BUG START] ===
         _fixCustomFrameRateToggle?.Set(config.AdvancedConfig.FixCustomFrameRate, false);
-        // === [MARKER: FIX_SET_FRAMERATE_BUG END] ===
+        _disableTileCullingToggle?.Set(config.AdvancedConfig.DisableTileCulling, false);
+        _hideFailedDecorationsToggle?.Set(config.AdvancedConfig.HideFailedDecorations, false);
 
         // Planet colors: toggle on when an override is stored; the picker shows the stored color or the default and is
         // blocked without an override
@@ -1141,6 +1214,20 @@ internal static class RenderConfigWindow
             }
         }
 
+        if (_fileNameFormatInput != null)
+        {
+            var format = _fileNameFormatInput.Value.Trim();
+            if (string.IsNullOrWhiteSpace(format) ||
+                string.Equals(format, GlobalSettings.DefaultFileNameFormat, StringComparison.Ordinal))
+            {
+                GlobalSettings.Current.FileNameFormat = null;
+            }
+            else
+            {
+                GlobalSettings.Current.FileNameFormat = format;
+            }
+        }
+
         GlobalSettings.Save();
         SetWindowActive(false);
 
@@ -1206,9 +1293,9 @@ internal static class RenderConfigWindow
         if (_processAudioToggle != null) target.AdvancedConfig.ProcessAudio = _processAudioToggle.Value;
         if (_nonTileToggle != null) target.AdvancedConfig.NonTile = _nonTileToggle.Value;
         if (_highResBloomCorrectionToggle != null) target.AdvancedConfig.HighResBloomCorrection = _highResBloomCorrectionToggle.Value;
-        // === [MARKER: FIX_SET_FRAMERATE_BUG START] ===
         if (_fixCustomFrameRateToggle != null) target.AdvancedConfig.FixCustomFrameRate = _fixCustomFrameRateToggle.Value;
-        // === [MARKER: FIX_SET_FRAMERATE_BUG END] ===
+        if (_disableTileCullingToggle != null) target.AdvancedConfig.DisableTileCulling = _disableTileCullingToggle.Value;
+        if (_hideFailedDecorationsToggle != null) target.AdvancedConfig.HideFailedDecorations = _hideFailedDecorationsToggle.Value;
 
         // Planet Colors
         target.AdvancedConfig.firePlanetColor = (_firePlanetToggle?.Value == true && _firePlanetPicker != null)

Util/RenderFileNameUtil.cs

@@ -0,0 +1,192 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Text.RegularExpressions;
+using ADOFAIRenderer.Core.Data;
+using ADOFAIRenderer.Data;
+
+namespace ADOFAIRenderer.Util;
+
+/// <summary>
+/// Formats and sanitizes render output file names according to customizable template patterns.
+/// </summary>
+internal static class RenderFileNameUtil
+{
+    private static readonly Regex RichTextRegex = new(@"<[^>]+>", RegexOptions.Compiled);
+    private static readonly Regex TokenRegex = new(@"\{([a-zA-Z0-9_]+)\}", RegexOptions.Compiled);
+
+    private static readonly HashSet<string> ReservedWindowsNames = new(StringComparer.OrdinalIgnoreCase)
+    {
+        "CON", "PRN", "AUX", "NUL",
+        "COM1", "COM2", "COM3", "COM4", "COM5", "COM6", "COM7", "COM8", "COM9",
+        "LPT1", "LPT2", "LPT3", "LPT4", "LPT5", "LPT6", "LPT7", "LPT8", "LPT9"
+    };
+
+    /// <summary>
+    /// Removes Unity rich text tags (such as &lt;color=...&gt;, &lt;b&gt;, etc.) from the given text.
+    /// </summary>
+    public static string StripRichText(string? input)
+    {
+        if (string.IsNullOrEmpty(input)) return string.Empty;
+        return RichTextRegex.Replace(input, string.Empty);
+    }
+
+    /// <summary>
+    /// Replaces invalid file name characters within a single token with an underscore.
+    /// </summary>
+    public static string SanitizeToken(string? token)
+    {
+        if (string.IsNullOrEmpty(token)) return string.Empty;
+
+        var invalidChars = Path.GetInvalidFileNameChars();
+        var sb = new StringBuilder(token.Length);
+        foreach (var c in token)
+        {
+            sb.Append(invalidChars.Contains(c) ? '_' : c);
+        }
+
+        return sb.ToString().Trim(' ', '.');
+    }
+
+    /// <summary>
+    /// Sanitizes the final formatted file name, ensuring no illegal characters or Windows reserved device names.
+    /// </summary>
+    public static string SanitizeFileName(string? fileName)
+    {
+        if (string.IsNullOrWhiteSpace(fileName)) return string.Empty;
+
+        var invalidChars = Path.GetInvalidFileNameChars();
+        var sb = new StringBuilder(fileName.Length);
+        foreach (var c in fileName)
+        {
+            sb.Append(invalidChars.Contains(c) ? '_' : c);
+        }
+
+        var result = sb.ToString().Trim(' ', '.');
+        if (ReservedWindowsNames.Contains(result))
+        {
+            result = "_" + result;
+        }
+
+        return result;
+    }
+
+    /// <summary>
+    /// Formats a file name without extension by substituting template variables.
+    /// Available tokens: {song}, {title}, {artist}, {author}, {level}, {preset},
+    /// {date}, {time}, {year}, {month}, {day}, {hour}, {minute}, {second},
+    /// {resolution}, {width}, {height}, {fps}.
+    /// </summary>
+    public static string FormatFileName(
+        string? formatTemplate,
+        DateTime startTime,
+        RenderConfig config,
+        string? presetName = null,
+        string? levelPath = null)
+    {
+        var scn = scnGame.instance;
+        string rawSong = "";
+        string rawArtist = "";
+        string rawAuthor = "";
+
+        if (scn != null && scn.levelData != null)
+        {
+            rawSong = scn.levelData.song ?? "";
+            rawArtist = scn.levelData.artist ?? "";
+            rawAuthor = scn.levelData.author ?? "";
+        }
+
+        if (string.IsNullOrWhiteSpace(rawSong) && !string.IsNullOrWhiteSpace(levelPath))
+        {
+            var dir = Path.GetDirectoryName(levelPath);
+            rawSong = !string.IsNullOrWhiteSpace(dir)
+                ? Path.GetFileName(dir)
+                : Path.GetFileNameWithoutExtension(levelPath);
+        }
+
+        var song = SanitizeToken(StripRichText(rawSong));
+        var artist = SanitizeToken(StripRichText(rawArtist));
+        var author = SanitizeToken(StripRichText(rawAuthor));
+        var level = !string.IsNullOrWhiteSpace(levelPath)
+            ? SanitizeToken(Path.GetFileNameWithoutExtension(levelPath))
+            : song;
+        var preset = SanitizeToken(presetName ?? "");
+
+        var date = startTime.ToString("yyyy-MM-dd");
+        var time = startTime.ToString("HH-mm-ss");
+        var year = startTime.ToString("yyyy");
+        var month = startTime.ToString("MM");
+        var day = startTime.ToString("dd");
+        var hour = startTime.ToString("HH");
+        var minute = startTime.ToString("mm");
+        var second = startTime.ToString("ss");
+
+        var width = config.RenderWidth.ToString();
+        var height = config.RenderHeight.ToString();
+        var resolution = $"{config.RenderWidth}x{config.RenderHeight}";
+
+        var effectiveFps = Math.Min(config.VideoFPS, config.RenderFPS);
+        var fps = Math.Abs(effectiveFps % 1) < 0.001
+            ? ((int)effectiveFps).ToString()
+            : effectiveFps.ToString("0.##");
+
+        var tokens = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
+        {
+            { "song", song },
+            { "title", song },
+            { "artist", artist },
+            { "author", author },
+            { "level", level },
+            { "preset", preset },
+            { "date", date },
+            { "time", time },
+            { "year", year },
+            { "month", month },
+            { "day", day },
+            { "hour", hour },
+            { "minute", minute },
+            { "second", second },
+            { "width", width },
+            { "height", height },
+            { "resolution", resolution },
+            { "fps", fps }
+        };
+
+        var template = string.IsNullOrWhiteSpace(formatTemplate)
+            ? GlobalSettings.DefaultFileNameFormat
+            : formatTemplate;
+
+        var replaced = TokenRegex.Replace(template, match =>
+        {
+            var key = match.Groups[1].Value;
+            return tokens.TryGetValue(key, out var val) ? val : match.Value;
+        });
+
+        var sanitized = SanitizeFileName(replaced);
+        return string.IsNullOrWhiteSpace(sanitized)
+            ? startTime.ToString("yyyy-MM-dd HH-mm-ss")
+            : sanitized;
+    }
+
+    /// <summary>
+    /// Returns a collision-free output file path by appending (1), (2), etc. if a file with the given name already exists.
+    /// </summary>
+    public static string GetUniqueFilePath(string directory, string fileNameWithoutExt, string ext)
+    {
+        var normalizedExt = "." + ext.TrimStart('.').ToLowerInvariant();
+        var fileName = $"{fileNameWithoutExt}{normalizedExt}";
+        var fullPath = Path.Combine(directory, fileName);
+
+        var counter = 1;
+        while (File.Exists(fullPath))
+        {
+            fileName = $"{fileNameWithoutExt} ({counter}){normalizedExt}";
+            fullPath = Path.Combine(directory, fileName);
+            counter++;
+        }
+
+        return fullPath;
+    }
+}