1 files changed, 16 insertions, 0 deletions
diff --git a/samples/OpenGL/qt_terr/vecmath.h b/samples/OpenGL/qt_terr/vecmath.h
new file mode 100644
index 0000000..0c27eff
--- /dev/null
+++ b/samples/OpenGL/qt_terr/vecmath.h
@@ -0,0 +1,16 @@
+#ifndef VECMATH_H
+#define VECMATH_H
+
+double DOT(double a[3], double b[3]);
+
+void ADD(double out[3], double a[3], double b[3]);
+
+void SUB(double out[3], double a[3], double b[3]);
+
+void SCALE(double out[3], double v[3], double scalar);
+
+double length(double v[3]);
+
+void normalize(double out[3], double in[3]);
+
+#endif/*VECMATH_H*/