From 880bbba4914f3675b92d3c9bf36123360e8a39ce Mon Sep 17 00:00:00 2001
From: lisyarus <lisyarus@gmail.com>
Date: Thu, 3 Sep 2026 12:14:54 +0300
Subject: [PATCH] Add 3-argument smoothstep and smootherstep

---
 libs/math/include/psemek/math/math.hpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/libs/math/include/psemek/math/math.hpp b/libs/math/include/psemek/math/math.hpp
index a84b7871..f734b6c4 100644
--- a/libs/math/include/psemek/math/math.hpp
+++ b/libs/math/include/psemek/math/math.hpp
@@ -230,6 +230,12 @@ namespace psemek::math
 		return x * x * (T{3} - T{2} * x);
 	}
 
+	template <typename T>
+	T smoothstep(T edge0, T edge1, T x)
+	{
+		return smoothstep(clamp((x - edge0) / (edge1 - edge0), T{0}, T{1}));
+	}
+
 	template <typename T>
 	T smootherstep(T x)
 	{
@@ -237,6 +243,12 @@ namespace psemek::math
 		return x * x2 * (T{10} - x * T{15} + x2 * T{6});
 	}
 
+	template <typename T>
+	T smootherstep(T edge0, T edge1, T x)
+	{
+		return smootherstep(clamp((x - edge0) / (edge1 - edge0), T{0}, T{1}));
+	}
+
 	template <typename T>
 	T inverse_smoothstep(T x)
 	{