X-Git-Url: http://git.localhorst.tv/?a=blobdiff_plain;f=src%2Fmath%2Fglm.hpp;h=0d344e6e7879bbb4786aecb64266060854154f7a;hb=d921cba26f21e4a75b22f5e9d9be988707bf6a8f;hp=46843db4ca2850603d4ca9001dab12b1cc302bae;hpb=5b2ab168a9b3c05082bd9cd924f548bc90fc8efa;p=blobs.git

diff --git a/src/math/glm.hpp b/src/math/glm.hpp
index 46843db..0d344e6 100644
--- a/src/math/glm.hpp
+++ b/src/math/glm.hpp
@@ -16,10 +16,14 @@
 #if GLM_VERSION < 96
 
 namespace glm {
-	using tvec1 = detail::tvec1;
-	using tvec2 = detail::tvec2;
-	using tvec3 = detail::tvec3;
-	using tvec4 = detail::tvec4;
+	template<class T, precision P = defaultp>
+	using tvec1 = detail::tvec1<T, P>;
+	template<class T, precision P = defaultp>
+	using tvec2 = detail::tvec2<T, P>;
+	template<class T, precision P = defaultp>
+	using tvec3 = detail::tvec3<T, P>;
+	template<class T, precision P = defaultp>
+	using tvec4 = detail::tvec4<T, P>;
 }
 
 #endif
@@ -36,6 +40,17 @@ inline bool anynan(const T &v) noexcept {
 	return glm::any(glm::isnan(v));
 }
 
+template<class Vec>
+inline Vec limit(const Vec &v, typename Vec::value_type max) noexcept {
+	typename Vec::value_type len2 = glm::length2(v);
+	typename Vec::value_type max2 = max * max;
+	if (len2 > max2) {
+		return glm::normalize(v) * max;
+	} else {
+		return v;
+	}
+}
+
 template<class T>
 inline T rgb2hsl(const T &rgb) {
 	using Vec4 = glm::tvec4<typename T::value_type>;
@@ -55,8 +70,8 @@ template<class T>
 inline T hsl2rgb(const T &hsl) {
 	using Vec3 = glm::tvec3<typename T::value_type>;
 	using Vec4 = glm::tvec4<typename T::value_type>;
-	const Vec4 K(0.0, -1.0/3.0, 2.0/3.0, -1.0);
-	const Vec3 p(glm::abs(glm::fract(Vec3(hsl.h) + Vec3(K)) * 6.0 - Vec3(K.w)));
+	const Vec4 K(1.0, 2.0/3.0, 1.0/3.0, 3.0);
+	const Vec3 p(glm::abs(glm::fract(Vec3(hsl.x) + Vec3(K)) * 6.0 - Vec3(K.w)));
 	T rgb = hsl.z * glm::mix(Vec3(K.x), glm::clamp(p - Vec3(K.x), 0.0, 1.0), hsl.y);
 	return rgb;
 }