Code/HumanoidRetargeter/Core/Formats/Mmd/Bullet/BulletDynamics/SolverMode.cs

An internal flagged enum that defines solver mode bitflags for the Bullet physics solver. It lists various options like warmstarting, friction behaviors, SIMD/CUDA optimizations and ordering/cache options used by the dynamics solver.

/*
 * C# / XNA  port of Bullet (c) 2011 Mark Neale <[email protected]>
 *
 * Bullet Continuous Collision Detection and Physics Library
 * Copyright (c) 2003-2008 Erwin Coumans  http://www.bulletphysics.com/
 *
 * This software is provided 'as-is', without any express or implied warranty.
 * In no event will the authors be held liable for any damages arising from
 * the use of this software.
 *
 * Permission is granted to anyone to use this software for any purpose,
 * including commercial applications, and to alter it and redistribute it
 * freely, subject to the following restrictions:
 *
 * 1. The origin of this software must not be misrepresented; you must not
 *    claim that you wrote the original software. If you use this software
 *    in a product, an acknowledgment in the product documentation would be
 *    appreciated but is not required.
 * 2. Altered source versions must be plainly marked as such, and must not be
 *    misrepresented as being the original software.
 * 3. This notice may not be removed or altered from any source distribution.
 */
// Adapted from BulletXNA 73b2e1b9: namespace isolation, no XNA rendering, one type per file.
#nullable disable
#pragma warning disable CS1591, CS0168, CS0219, CS0414, CS0660, CS0661, CS0659, CS0693, CS8981, CS0108, CS0114
using System;

namespace HumanoidRetargeter.Core.Formats.Mmd.Bullet.BulletDynamics;

[Flags]
internal enum SolverMode
{
	SOLVER_RANDMIZE_ORDER = 1,
	SOLVER_FRICTION_SEPARATE = 2,
	SOLVER_USE_WARMSTARTING = 4,
	SOLVER_USE_FRICTION_WARMSTARTING = 8,
	SOLVER_USE_2_FRICTION_DIRECTIONS = 16,
	SOLVER_ENABLE_FRICTION_DIRECTION_CACHING = 32,
	SOLVER_DISABLE_VELOCITY_DEPENDENT_FRICTION_DIRECTION = 64,
	SOLVER_CACHE_FRIENDLY = 128,
	SOLVER_SIMD = 256, //enabled for Windows, the solver innerloop is branchless SIMD, 40% faster than FPU/scalar version
	SOLVER_CUDA = 512 //will be open sourced during Game Developers Conference 2009. Much faster.
}