Added 8bit pack and unpack to GTC_packing

test/gtc/gtc_packing.cpp

@@ -650,6 +650,26 @@ int test_packUnorm1x5_1x6_1x5()
 	return Error;
 }
 
+int test_packUnorm2x3_1x2()
+{
+	int Error = 0;
+
+	std::vector<glm::vec3> A;
+	A.push_back(glm::vec3(1.0f, 0.7f, 0.5f));
+	A.push_back(glm::vec3(0.5f, 0.1f, 0.0f));
+
+	for(std::size_t i = 0; i < A.size(); ++i)
+	{
+		glm::vec3 B(A[i]);
+		glm::uint8 C = glm::packUnorm2x3_1x2(B);
+		glm::vec3 D = glm::unpackUnorm2x3_1x2(C);
+		Error += glm::all(glm::epsilonEqual(B, D, 1.0f / 3.f)) ? 0 : 1;
+		assert(!Error);
+	}
+
+	return Error;
+}
+
 int main()
 {
 	int Error = 0;
@@ -677,6 +697,7 @@ int main()
 	Error += test_packUnorm4x4();
 	Error += test_packUnorm3x5_1x1();
 	Error += test_packUnorm1x5_1x6_1x5();
+	Error += test_packUnorm2x3_1x2();
 
 	Error += test_F2x11_1x10();
 	Error += test_F3x9_E1x5();