From 8b7b42d96059320e86678c85c48147daebe8add0 Mon Sep 17 00:00:00 2001
From: jiangheng90 <jiangheng90@live.com>
Date: Thu, 27 Jul 2023 09:38:01 +0800
Subject: [PATCH] fix(matrix4): Fix ortho projection error (#249)

Fix projection error in ortho & orthoOffCenter
---
 src/math/Matrix4.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/math/Matrix4.ts b/src/math/Matrix4.ts
index f8c67845..157e20e7 100644
--- a/src/math/Matrix4.ts
+++ b/src/math/Matrix4.ts
@@ -648,7 +648,7 @@ export class Matrix4 {
 
         data[12] = 0;
         data[13] = 0;
-        data[14] = zn / (zn - zf);
+        data[14] = (zn + zf) / (zn - zf);
         data[15] = 1;
 
         return this
@@ -711,7 +711,7 @@ export class Matrix4 {
 
         data[12] = (l + r) / (l - r);
         data[13] = (t + b) / (b - t);
-        data[14] = zn / (zn - zf);
+        data[14] = (zn + zf) / (zn - zf);
         data[15] = 1;
     }