From 1fdee67f9d082f592cd16a8176d29f1c2d0d2182c71d60c3dc7e7f7d50d2b602 Mon Sep 17 00:00:00 2001
From: copecone <controld3785@gmail.com>
Date: Wed, 14 Oct 2026 20:20:16 +0900
Subject: [PATCH] Validate Even Render Resolution Before Starting

---
 Localization/Locale/en.json     | 1 +
 Localization/Locale/ko.json     | 1 +
 UI/Window/RenderConfigWindow.cs | 8 ++++++++
 3 files changed, 10 insertions(+)

diff --git a/Localization/Locale/en.json b/Localization/Locale/en.json
index 033d9d8..f40182b 100644
--- a/Localization/Locale/en.json
+++ b/Localization/Locale/en.json
@@ -45,6 +45,7 @@
   "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",
+  "ui.render_config.validation_even_size": "Render width and height must be even numbers (current: {0} x {1}).",
   "ui.render_config.invalid_path": "Output directory path is invalid:\n{0}",
   "ui.render_config.planet_colors": "Planet Colors (Optional)",
   "ui.render_config.fire_planet": "Fire Planet",
diff --git a/Localization/Locale/ko.json b/Localization/Locale/ko.json
index 8c02196..a201e08 100644
--- a/Localization/Locale/ko.json
+++ b/Localization/Locale/ko.json
@@ -45,6 +45,7 @@
   "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.",
+  "ui.render_config.validation_even_size": "렌더 해상도의 가로와 세로는 짝수여야 해요. (현재: {0} x {1})",
   "ui.render_config.invalid_path": "출력 디렉토리 경로가 올바르지 않습니다:\n{0}",
   "ui.render_config.planet_colors": "행성 색상 설정 (선택 사항)",
   "ui.render_config.fire_planet": "불 행성",
diff --git a/UI/Window/RenderConfigWindow.cs b/UI/Window/RenderConfigWindow.cs
index db8a826..087815c 100644
--- a/UI/Window/RenderConfigWindow.cs
+++ b/UI/Window/RenderConfigWindow.cs
@@ -846,6 +846,14 @@ internal static class RenderConfigWindow
         var config = UiConfig;
         SyncUItoConfig(config);
 
+        // The encoders use 4:2:0 chroma subsampling, which needs an even width and height.
+        if (config.RenderWidth % 2 != 0 || config.RenderHeight % 2 != 0)
+        {
+            ShowValidationError(LocalizationManager.Get(
+                "ui.render_config.validation_even_size", config.RenderWidth, config.RenderHeight));
+            return;
+        }
+
         // Sync Output Directory
         if (_outputDirInput != null)
         {