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o3de/Gems/PhysX/Code/NumericalMethods/Source/Optimization/Constants.h

29 lines
954 B
C++

/*
* Copyright (c) Contributors to the Open 3D Engine Project.
* For complete copyright and license terms please see the LICENSE at the root of this distribution.
*
* SPDX-License-Identifier: Apache-2.0 OR MIT
*
*/
#pragma once
#include <AzCore/base.h>
namespace NumericalMethods::Optimization
{
const AZ::u32 lineSearchIterations = 100;
const AZ::u32 solverIterations = 500;
// value of the gradient norm used for terminating the search
const double gradientTolerance = 1e-6;
// used in finite difference evaluation of derivatives
// a value close to the square root of the machine precision is recommended in Nocedal and Wright
const double epsilon = 1e-7;
// values recommended in Nocedal and Wright for constants in the Wolfe conditions for satisfactory solution improvement
const double WolfeConditionsC1 = 1e-4;
const double WolfeConditionsC2 = 0.9;
} // namespace NumericalMethods::Optimization