2 files changed, 64 insertions, 3 deletions
diff --git a/indra/llmath/v3color.h b/indra/llmath/v3color.h
index 60353bea6e..d925f56e97 100644
--- a/indra/llmath/v3color.h
+++ b/indra/llmath/v3color.h
@@ -88,6 +88,16 @@ public:
 	const LLColor3&	set(F32 x, F32 y, F32 z);	// Sets LLColor3 to (x, y, z)
 	const LLColor3&	set(const LLColor3 &vec);	// Sets LLColor3 to vec
 	const LLColor3&	set(const F32 *vec);		// Sets LLColor3 to vec
+    
+    // set from a vector of unknown type and size
+    // may leave some data unmodified
+    template<typename T>
+    const LLColor3& set(const std::vector<T>& v);
+
+    // write to a vector of unknown type and size
+    // maye leave some data unmodified
+    template<typename T>
+    void write(std::vector<T>& v) const;
 
 	F32		magVec() const;				// deprecated
 	F32		magVecSquared() const;		// deprecated
@@ -485,7 +495,7 @@ inline const LLColor3 srgbColor3(const LLColor3 &a) {
 	return srgbColor;
 }
 
-inline const LLColor3 linearColor3(const F32* v) {
+inline const LLColor3 linearColor3p(const F32* v) {
     LLColor3 linearColor;
     linearColor.mV[0] = sRGBtoLinear(v[0]);
     linearColor.mV[1] = sRGBtoLinear(v[1]);
@@ -496,12 +506,34 @@ inline const LLColor3 linearColor3(const F32* v) {
 
 template<class T>
 inline const LLColor3 linearColor3(const T& a) {
-    return linearColor3(a.mV);
+    return linearColor3p(a.mV);
 }
 
 template<class T>
 inline const LLVector3 linearColor3v(const T& a) {
-    return LLVector3(linearColor3(a.mV).mV);
+    return LLVector3(linearColor3p(a.mV).mV);
+}
+
+template<typename T>
+const LLColor3& LLColor3::set(const std::vector<T>& v)
+{
+    for (S32 i = 0; i < llmin((S32)v.size(), 3); ++i)
+    {
+        mV[i] = v[i];
+    }
+
+    return *this;
+}
+
+// write to a vector of unknown type and size
+// maye leave some data unmodified
+template<typename T>
+void LLColor3::write(std::vector<T>& v) const
+{
+    for (int i = 0; i < llmin((S32)v.size(), 3); ++i)
+    {
+        v[i] = mV[i];
+    }
 }
 
 #endif
diff --git a/indra/llmath/v4color.h b/indra/llmath/v4color.h
index f2863be531..daa61594fb 100644
--- a/indra/llmath/v4color.h
+++ b/indra/llmath/v4color.h
@@ -91,6 +91,15 @@ class LLColor4
         const LLColor4&	set(const F64 *vec);			// Sets LLColor4 to (double)vec
         const LLColor4&	set(const LLColor4U& color4u); // Sets LLColor4 to color4u, rescaled.
 
+        // set from a vector of unknown type and size
+        // may leave some data unmodified
+        template<typename T> 
+        const LLColor4& set(const std::vector<T>& v);
+
+        // write to a vector of unknown type and size
+        // maye leave some data unmodified
+        template<typename T>
+        void write(std::vector<T>& v) const;
 
 		const LLColor4&    setAlpha(F32 a);
 
@@ -690,5 +699,25 @@ inline const LLColor4 linearColor4(const LLColor4 &a)
     return linearColor;
 }
 
+template<typename T>
+const LLColor4& LLColor4::set(const std::vector<T>& v)
+{
+    for (S32 i = 0; i < llmin((S32)v.size(), 4); ++i)
+    {
+        mV[i] = v[i];
+    }
+
+    return *this;
+}
+
+template<typename T>
+void LLColor4::write(std::vector<T>& v) const
+{
+    for (int i = 0; i < llmin((S32)v.size(), 4); ++i)
+    {
+        v[i] = mV[i];
+    }
+}
+
 #endif