Bug fix: address implicit conversion.

Signed-off-by: apradhana <[email protected]>

Author: apradhana

openvdb/openvdb/math/Math.h

@@ -147,15 +147,15 @@ template<> inline std::string negative(const std::string& val) { return val; }
 //@{
 /// Tolerance for floating-point comparison
 template<typename T> struct Tolerance   { static T value() { return zeroVal<T>(); } };
-template<> struct Tolerance<math::half> { static math::half value() { return 0.00097656; } };
+template<> struct Tolerance<math::half> { static math::half value() { return static_cast<math::half>(0.00097656f); } };
 template<> struct Tolerance<float>      { static float value() { return 1e-8f; } };
 template<> struct Tolerance<double>     { static double value() { return 1e-15; } };
 //@}
 
 //@{
 /// Delta for small floating-point offsets
 template<typename T> struct Delta   { static T value() { return zeroVal<T>(); } };
-template<> struct Delta<math::half> { static math::half value() { return 0.00390625; } };
+template<> struct Delta<math::half> { static math::half value() { return static_cast<math::half>(0.00390625f); } };
 template<> struct Delta<float>      { static float value() { return  1e-5f; } };
 template<> struct Delta<double>     { static double value() { return 1e-9; } };
 //@}