From 7eb4c7848894bfa757abfcf946173c0d36d0a64b Mon Sep 17 00:00:00 2001
From: daoge <3523206925@qq.com>
Date: Tue, 3 Mar 2026 07:20:55 +0800
Subject: [PATCH] fix: fix gamma (#191)

---
 Minecraft.Client/Common/Consoles_App.cpp | 4 ++++
 Minecraft.Client/GameRenderer.cpp        | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/Minecraft.Client/Common/Consoles_App.cpp b/Minecraft.Client/Common/Consoles_App.cpp
index 30bc8533..38397814 100644
--- a/Minecraft.Client/Common/Consoles_App.cpp
+++ b/Minecraft.Client/Common/Consoles_App.cpp
@@ -1342,9 +1342,13 @@ void CMinecraftApp::ActionGameSettings(int iPad,eGameSetting eVal)
 	case eGameSetting_Gamma:
 		if(iPad==ProfileManager.GetPrimaryPad())
 		{
+#if defined(_WIN64) || defined(_WINDOWS64)
+			pMinecraft->options->set(Options::Option::GAMMA, ((float)GameSettingsA[iPad]->ucGamma) / 100.0f);
+#else
 			// ucGamma range is 0-100, UpdateGamma is 0 - 32768
 			float fVal=((float)GameSettingsA[iPad]->ucGamma)*327.68f;
 			RenderManager.UpdateGamma((unsigned short)fVal);
+#endif
 		}				
 
 		break;
diff --git a/Minecraft.Client/GameRenderer.cpp b/Minecraft.Client/GameRenderer.cpp
index 5e52459c..08c20cfb 100644
--- a/Minecraft.Client/GameRenderer.cpp
+++ b/Minecraft.Client/GameRenderer.cpp
@@ -903,7 +903,7 @@ void GameRenderer::updateLightTexture(float a)
 			if (_g > 1) _g = 1;
 			if (_b > 1) _b = 1;
 
-			float brightness = 0.0f;	// 4J - TODO - was mc->options->gamma;
+			float brightness = mc->options->gamma;
 
 			float ir = 1 - _r;
 			float ig = 1 - _g;