From 71b459c0246d70d0bba5dd49662b5534c579251e Mon Sep 17 00:00:00 2001
From: hyzboy <hyzboy@gmail.com>
Date: Wed, 18 Jun 2025 01:56:20 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=AD=A3=E9=80=8F=E8=A7=86=E7=9F=A9?=
 =?UTF-8?q?=E9=98=B5=E8=AE=A1=E7=AE=97X=E8=BD=B4=E6=96=B9=E5=90=91?=
 =?UTF-8?q?=E4=B8=8D=E5=AF=B9=E9=97=AE=E9=A2=98?=
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---
 inc/hgl/math/Matrix.h | 2 +-
 src/Math/Matrix4f.cpp | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/inc/hgl/math/Matrix.h b/inc/hgl/math/Matrix.h
index 5c84df0..4bebb65 100644
--- a/inc/hgl/math/Matrix.h
+++ b/inc/hgl/math/Matrix.h
@@ -110,7 +110,7 @@ namespace hgl
      * @param target 目标位置
      * @param up 向上向量
      */
-    Matrix4f lookat(const Vector3f &eye,const Vector3f &target,const Vector3f &up);
+    Matrix4f lookat(const Vector3f &eye,const Vector3f &target,const Vector3f &up=AxisVector::Z);
 
     inline Matrix4f translate(const Vector3f &v)
     {
diff --git a/src/Math/Matrix4f.cpp b/src/Math/Matrix4f.cpp
index 0fce0a6..92e91bf 100644
--- a/src/Math/Matrix4f.cpp
+++ b/src/Math/Matrix4f.cpp
@@ -81,7 +81,7 @@ namespace hgl
         float f = 1.0f / tanf( deg2rad( 0.5f * field_of_view ) );
 
         return Matrix4f(
-          f / aspect_ratio,
+          -f / aspect_ratio,
           0.0f,
           0.0f,
           0.0f,