1 files changed, 21 insertions, 0 deletions
diff --git a/sdl/math3d.c b/sdl/math3d.c
index 775dabd..3277ede 100644
--- a/sdl/math3d.c
+++ b/sdl/math3d.c
@@ -7,6 +7,7 @@
  */
 
 #include <math.h>
+#include <stdio.h>
 #include <string.h>
 #include "math3d.h"
 
@@ -202,3 +203,23 @@ void m3dMatrixMultiply44f(M3DMatrix44f product, const M3DMatrix44f a,
     #undef P
 }
 
+void m3dPrintMatrix44f(const M3DMatrix44f m)
+{
+    int i, j;
+
+    #define M(row,col) m[col*4+row]
+
+    for (i = 0; i < 4; i++)
+    {
+        for (j = 0; j < 4; j++)
+        {
+            printf("%5.2f ", M(i, j));
+        }
+        puts("");
+    }
+
+    puts("");
+
+    #undef M
+}
+