Ra::Core::Geometry::CatmullClarkSubdivider Class Reference

#include <Core/Geometry/CatmullClarkSubdivider.hpp>

Collaboration diagram for Ra::Core::Geometry::CatmullClarkSubdivider:

Public Member Functions
	CatmullClarkSubdivider (deprecated::TopologicalMesh &mesh)
const char *	name (void) const override
void	recompute (const Vector3Array &newCoarseVertices, const Vector3Array &newCoarseNormals, Vector3Array &newSubdivVertices, Vector3Array &newSubdivNormals, deprecated::TopologicalMesh &mesh)

Protected Member Functions
bool	prepare (deprecated::TopologicalMesh &_m) override
bool	cleanup (deprecated::TopologicalMesh &_m) override
bool	subdivide (deprecated::TopologicalMesh &_m, size_t _n, const bool _update_points=true) override

Detailed Description

This class implements the Catmull-Clark subdivision algorithm

This class extends OpenMesh's CatmullClarkT subdivider to handle attributes.

Note

We here consider that boundary halfedges do not store attributes.

Definition at line 17 of file CatmullClarkSubdivider.hpp.

Constructor & Destructor Documentation

CatmullClarkSubdivider() [1/2]

Ra::Core::Geometry::CatmullClarkSubdivider::CatmullClarkSubdivider ( )

inline

Definition at line 29 of file CatmullClarkSubdivider.hpp.

CatmullClarkSubdivider() [2/2]

Ra::Core::Geometry::CatmullClarkSubdivider::CatmullClarkSubdivider ( deprecated::TopologicalMesh & mesh )

inlineexplicit

Definition at line 31 of file CatmullClarkSubdivider.hpp.

~CatmullClarkSubdivider()

Ra::Core::Geometry::CatmullClarkSubdivider::~CatmullClarkSubdivider ( )

inline

Definition at line 35 of file CatmullClarkSubdivider.hpp.

Member Function Documentation

cleanup()

bool Ra::Core::Geometry::CatmullClarkSubdivider::cleanup ( deprecated::TopologicalMesh & _m )

overrideprotected

Definition at line 27 of file CatmullClarkSubdivider.cpp.

name()

const char * Ra::Core::Geometry::CatmullClarkSubdivider::name ( void ) const

inlineoverride

Definition at line 38 of file CatmullClarkSubdivider.hpp.

prepare()

bool Ra::Core::Geometry::CatmullClarkSubdivider::prepare ( deprecated::TopologicalMesh & _m )

overrideprotected

Definition at line 7 of file CatmullClarkSubdivider.cpp.

recompute()

void Ra::Core::Geometry::CatmullClarkSubdivider::recompute	(	const Vector3Array &	newCoarseVertices,
		const Vector3Array &	newCoarseNormals,
		Vector3Array &	newSubdivVertices,
		Vector3Array &	newSubdivNormals,
		deprecated::TopologicalMesh &	mesh )

In the case one wants to apply the subdivision on the same mesh topology, but with a different geometry (e.g. for an animated character), one may want to just reapply the subdivision operations instead for performance reasons. This can be achieved with the following code:

// 1- apply subdivision once
Ra::Core::Geometry::TriangleMesh triangleMesh;
Ra::Core::Geometry::deprecated::TopologicalMesh topoMesh( triangleMesh );
Ra::Core::CatmullClarkSubdivider subdiv( topoMesh );
subdiv( 2 );
// get back to TriangleMesh (mandatory before re-applying)
TriangleMesh subdividedMesh = topoMesh.toTriangleMesh();
 
// 2- re-apply operations on new geometry (new_vertices, new_normals)
m_subdivider.recompute( new_vertices, new_normals, subdividedMesh.vertices(),
                        subdividedMesh.normals(), topoMesh );

Definition at line 431 of file CatmullClarkSubdivider.cpp.

Here is the call graph for this function:

subdivide()

bool Ra::Core::Geometry::CatmullClarkSubdivider::subdivide ( deprecated::TopologicalMesh & _m, size_t _n, const bool _update_points = true )

overrideprotected

Definition at line 37 of file CatmullClarkSubdivider.cpp.

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The documentation for this class was generated from the following files:

• /home/runner/work/Radium-Engine/Radium-Engine/src/Radium-Engine/src/Core/Geometry/CatmullClarkSubdivider.hpp
• /home/runner/work/Radium-Engine/Radium-Engine/src/Radium-Engine/src/Core/Geometry/CatmullClarkSubdivider.cpp