TrimeshHelperFunctions.h

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/*
Copyright 2007-2025. Algoryx Simulation AB.
 
All AGX source code, intellectual property, documentation, sample code,
tutorials, scene files and technical white papers, are copyrighted, proprietary
and confidential material of Algoryx Simulation AB. You may not download, read,
store, distribute, publish, copy or otherwise disseminate, use or expose this
material unless having a written signed agreement with Algoryx Simulation AB, or having been
advised so by Algoryx Simulation AB for a time limited evaluation, or having purchased a
valid commercial license from Algoryx Simulation AB.
 
Algoryx Simulation AB disclaims all responsibilities for loss or damage caused
from using this software, unless otherwise stated in written agreements with
Algoryx Simulation AB.
*/
 
#pragma once
 
#include <agx/agx.h>
#include <agxUtil/agxUtil.h>
 
namespace agxCollide
{
  class Box;
  class Cylinder;
  class Capsule;
}
 
namespace agxUtil {
  void AGXPHYSICS_EXPORT mergeDuplicateVertices(
    const agx::Vec3Vector& originalVertices,
    const agx::UInt32Vector& originalIndices,
    agx::Vec3Vector& remainingVertices,
    agx::UInt32Vector& remainingIndices,
    agx::Real precision);
 
  void AGXPHYSICS_EXPORT changeWindingToCounterclockwise (agx::UInt32Vector& indices);
 
 
  AGXPHYSICS_EXPORT bool reduceMesh(
      const agx::Vec3Vector& vertices, const agx::UInt32Vector& indices,
      agx::Vec3Vector& outVertices, agx::UInt32Vector& outIndices,
      double reductionRatio=0.5,
      double aggressiveness = 7.0);
 
 
  AGXPHYSICS_EXPORT bool computeOrientedBox(
    const agx::Vec3Vector& vertices,
    agx::Vec3& halfExtents,
    agx::AffineMatrix4x4& transform);
 
 
  struct ShapeOrientation
  {
    enum Orientation {
      X_AXIS,         
      Y_AXIS,         
      Z_AXIS,         
      MINIMIZE_VOLUME 
    };
  };
 
  AGXPHYSICS_EXPORT bool computeOrientedCylinder(
    const agx::Vec3Vector& vertices,
    agx::Vec2& radiusHeight,
    agx::AffineMatrix4x4& localRotation,
    agxUtil::ShapeOrientation::Orientation orientation = agxUtil::ShapeOrientation::MINIMIZE_VOLUME
    );
 
  AGXPHYSICS_EXPORT bool computeOrientedCapsule(
    const agx::Vec3Vector& vertices,
    agx::Vec2& radiusHeight,
    agx::AffineMatrix4x4& localRotation,
    agxUtil::ShapeOrientation::Orientation orientation = agxUtil::ShapeOrientation::MINIMIZE_VOLUME
    );
}