From 5db2224f93a0f76c707d1c7e9f142e552ac46cf9 Mon Sep 17 00:00:00 2001
From: Brett <brettmaster1@gmail.com>
Date: Wed, 8 Mar 2023 21:26:42 -0500
Subject: [PATCH] matrix multiplcation with vector

---
 include/blt/math/matrix.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/include/blt/math/matrix.h b/include/blt/math/matrix.h
index 0358615..874e4c0 100644
--- a/include/blt/math/matrix.h
+++ b/include/blt/math/matrix.h
@@ -216,6 +216,18 @@ namespace blt {
         return mat;
     }
     
+    inline vec4 operator*(const mat4x4& left, const vec4& right){
+        vec4 ret{0,0,0,0};
+        
+        for (int m = 0; m < 4; m++) {
+            for (int n = 0; n < 4; n++) {
+                ret[m] = ret[m] + left.m(m, n) * right[n];
+            }
+        }
+    
+        return ret;
+    }
+    
     // multiplies the const c with each element in the mat4x4 v
     inline mat4x4 operator*(float c, const mat4x4& v) {
         mat4x4 mat{};