From b5f81958df720136e5f6e89ba2212dadb12b2390 Mon Sep 17 00:00:00 2001
From: SepComet <2428390463@qq.com>
Date: Thu, 19 Mar 2026 20:12:55 +0800
Subject: [PATCH] =?UTF-8?q?bug=20fix=EF=BC=9A=E6=AD=A3=E6=96=B9=E4=BD=93?=
 =?UTF-8?q?=E9=81=AE=E6=8C=A1=E5=88=A4=E6=96=AD=E9=97=AE=E9=A2=98?=
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---
 CPU-Software-Renderer/RenderData/Color.h | 6 ++++++
 CPU-Software-Renderer/main.cpp           | 2 +-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/CPU-Software-Renderer/RenderData/Color.h b/CPU-Software-Renderer/RenderData/Color.h
index 1aa5ba6..e95739b 100644
--- a/CPU-Software-Renderer/RenderData/Color.h
+++ b/CPU-Software-Renderer/RenderData/Color.h
@@ -30,5 +30,11 @@ namespace RenderData
 			if (value > 255) return 255;
 			return static_cast<uint8_t>(value);
 		}
+
+		static Color Red() { return Color(255, 0, 0, 255); }
+		static Color Green() { return Color(0, 255, 0, 255); }
+		static Color Blue() { return Color(0, 0, 255, 255); }
+		static Color White() { return Color(255, 255, 255, 255); }
+		static Color Black() { return Color(0, 0, 0, 255); }
 	};
 }
\ No newline at end of file
diff --git a/CPU-Software-Renderer/main.cpp b/CPU-Software-Renderer/main.cpp
index 119a337..7e423d5 100644
--- a/CPU-Software-Renderer/main.cpp
+++ b/CPU-Software-Renderer/main.cpp
@@ -171,7 +171,7 @@ static bool IsFaceVisible(const CubeFace& face, const std::array<Math::Vector3,
 			viewSpaceVertices[face.vertices[2]] +
 			viewSpaceVertices[face.vertices[3]]) / 4.0f;
 
-	return faceNormal.dot(faceCenter) < 0.0f;
+	return faceNormal.dot(faceCenter) > 0.0f;
 }
 
 int main(int argc, char* argv[])