From dd5504352776d5a58315e3ac3d69fa96eab1e9e2 Mon Sep 17 00:00:00 2001
From: James Fulop <jameslynnfulop@gmail.com>
Date: Sat, 17 Sep 2016 19:01:43 -0400
Subject: [PATCH] add lerp macro

---
 renderdoc/common/common.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/renderdoc/common/common.h b/renderdoc/common/common.h
index 6951f95cf..ac9dfa531 100644
--- a/renderdoc/common/common.h
+++ b/renderdoc/common/common.h
@@ -121,6 +121,12 @@ T RDCMAX(const T &a, const T &b)
   return a > b ? a : b;
 }
 
+template <typename T>
+T RDCLERP(const T &a, const T &b, const T &step)
+{
+  return (1.0f - step) * a + step * b;
+}
+
 template <typename T>
 inline T AlignUp4(T x)
 {