Mesh Class Reference

Class representing a triangle mesh. More...

#include <mesh.h>

Inherits Primitive.

Inheritance diagram for Mesh:

[legend]List of all members.

Public Member Functions
	Mesh ()
	Creates a mesh primitive.
	Mesh (const std::string &filename, Material *m=0)
	Loads a mesh from the specified file.
virtual	~Mesh ()
	Destroys the mesh.
void	load (const std::string &filename)
	Loads a mesh from the specified file.
void	getGeometry (std::vector< Intersectable * > &geometry)
	Extract all intersectable geometry from the mesh, i.e.
void	setMaterial (Material *m)
	Sets the material of the primitive to the material pointed to by m, or if m is 0, the material is set to the default material (diffuse gray).
Material *	getMaterial () const
	Returns a pointer to the primitive's material.
void	setTransform (Matrix &M)
	Manually set the local transform matrix to M.
void	setTranslation (const Vector &T)
	Sets the translation of the node to T.
void	setTranslation (float tx, float ty, float tz)
	Sets the translation of the node to (tx,ty,tz).
void	setScale (float s)
	Sets the scale uniformly to s.
void	setScale (const Vector &S)
	Sets the scale non-uniformly to S.
void	setScale (float sx, float sy, float sz)
	Sets the scale non-uniformly to (sx,sy,sz).
void	setRotation (const Vector &R)
	Sets the rotation about the x,y,z axes to the components of R.
void	setRotation (float rx, float ry, float rz)
	Sets the rotation about the x,y,z axes to (rx,ry,rz) respectively.
Protected Types
typedef std::list< Node * >::iterator	t_itr
typedef std::list< Node * >::const_iterator	t_constitr
Protected Member Functions
void	prepare ()
	Prepares the mesh for rendering by transforming all vertex positions/normals to world space.
void	clear ()
	Clears all data associated with the mesh.
void	loadOBJ (const std::string &filename)
	Loads a mesh file in the OBJ format.
void	addChild (Node *child)
	Adds a node to the list of children.
bool	hasChild (const Node *child) const
	Returns true if a specific node is a child of this node.
void	setupTransform (const Matrix &world)
	Setup the local and world transform of the node.
Protected Attributes
std::vector< Point >	mVtxP
	Array of vertex positions.
std::vector< Vector >	mVtxN
	Array of vertex normals.
std::vector< UV >	mVtxUV
	Array of vertex UV coordinates.
std::vector< Triangle >	mFaces
	Array of triangles.
bool	mReady
	True if prepare() has been called.
Material *	mMaterial
	Ptr to the material used by the primitive.
Vector	mT
	Translation.
Vector	mS
	Scale.
Vector	mR
	Rotation.
bool	mTransformSet
	True if the local transform has been setup.
Matrix	mLocalTransform
	Local transform, created from the T,S,R parameters.
Matrix	mWorldTransform
	Object->World transform (local + inherited transform).
std::list< Node * >	mChildren
	List of children attached to the Node.

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Detailed Description

Class representing a triangle mesh.

The mesh can be loaded from an WaveFront (.obj) mesh file. Internally, the mesh's vertex positions, normals, and texture coordinates are stored in separate vectors. Each triangle has three sets of indices into these vectors. If the normals are not specified in the obj-file, these are computed by area-weighting the face normals.

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

• mesh.h
• mesh.cpp

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