Fix compilation for real

rts/System/float3.cpp

@@ -14,6 +14,19 @@ CR_REG_METADATA(float3, (CR_MEMBER(x), CR_MEMBER(y), CR_MEMBER(z)))
 float float3::maxxpos = -1.0f;
 float float3::maxzpos = -1.0f;
 
+float3 float3::PickNonParallel() const
+{
+	// https://math.stackexchange.com/questions/3122010/how-to-deterministically-pick-a-vector-that-is-guaranteed-to-be-non-parallel-to
+	auto mi = std::min_element(std::begin(xyz), std::end(xyz), [](const auto& a, const auto& b) { return math::fabs(a) < math::fabs(b); });
+	auto Mi = std::max_element(std::begin(xyz), std::end(xyz), [](const auto& a, const auto& b) { return math::fabs(a) > math::fabs(b); });
+	float3 npVec{ 0.0f };
+	npVec.xyz[std::distance(std::begin(xyz), mi)] = *Mi;
+
+	// don't normalize as it most likely will go as argument to cross,
+	// and the cross result will need to be normalized anyway
+	return npVec;
+}
+
 bool float3::IsInBounds() const
 {
 	assert(maxxpos > 0.0f); // check if initialized

rts/System/float3.h

@@ -752,17 +752,7 @@ class float3
 	*/
 
 	// deterministically pick a non-parallel vector to the current one
-	float3 PickNonParallel() const {
-		// https://math.stackexchange.com/questions/3122010/how-to-deterministically-pick-a-vector-that-is-guaranteed-to-be-non-parallel-to
-		auto mi = std::min_element(std::begin(xyz), std::end(xyz), [](const auto& a, const auto& b) { return math::fabs(a) < math::fabs(b); });
-		auto Mi = std::max_element(std::begin(xyz), std::end(xyz), [](const auto& a, const auto& b) { return math::fabs(a) > math::fabs(b); });
-		float3 npVec{ 0.0f };
-		npVec.xyz[std::distance(std::begin(xyz), mi)] = *Mi;
-
-		// don't normalize as it most likely will go as argument to cross,
-		// and the cross result will need to be normalized anyway
-		return npVec;
-	}
+	float3 PickNonParallel() const;
 
 	bool Normalized() const { return math::fabs(1.0f - SqLength()) <= cmp_eps(); }
 	static bool CheckNaN(float c) { return (!math::isnan(c) && !math::isinf(c)); }