ACG::SceneGraph::TextureNode Class Reference

#include <ACG/Scenegraph/TextureNode.hh>

Inheritance diagram for ACG::SceneGraph::TextureNode:

Collaboration diagram for ACG::SceneGraph::TextureNode:

Classes
class	TextureInfo
Public Member Functions
	TextureNode (BaseNode *_parent=0, const std::string &_name="<TextureNode>", bool _texture_repeat=true, GLint _texture_filter=GL_LINEAR)
	Default constructor. Applies all properties.
virtual	~TextureNode ()
	Destructor.
	ACG_CLASSNAME (TextureNode)
	set class name
bool	alpha ()
	get transparency status
void	set_alpha (bool _status)
	set transparency status
bool	repeat ()
	get texture repeat status
void	set_repeat (bool _status)
	set texture repeat status
GLint	filter ()
	get texture filter
void	set_filter (GLint _filter)
	set texture filter
void	set_texture_mode (GLenum _mode)
Change active texture

bool	activateTexture (GLuint _id)
	Set active Texture.
GLuint	activeTexture ()
	Get active Texture.
bool	read (const char *_filename)
	Uses a QImage to load the texture from the given file.
void	set_texture (const QImage &_image)
	Uses a QImage to set the texture.
void	set_texture (const float *_image, int _width, int _height)
	Uses a float buffer to set the texture.
void	set_texture (const unsigned char *_image, int _width, int _height)
	Uses a byte buffer to set the texture.
Change specific texture

bool	read (const char *_filename, GLuint _id)
	Uses a QImage to load the texture from the given file.
void	set_texture (const QImage &_image, GLuint _id)
	Uses a QImage to set the texture.
void	set_texture (const float *_image, int _width, int _height, GLuint _id)
	Uses a float buffer to set the texture.
void	set_texture (const unsigned char *_image, int _width, int _height, GLuint _id)
	Uses a byte buffer to set the texture.
SceneGraph traversal functions

void	enter (GLState &_state, unsigned int _drawmode)
	set default texture and states for the nodes children
void	leave (GLState &_state, unsigned int _drawmode)
	Unbind Texture.
void	enterPick (GLState &_state, PickTarget _target, unsigned int _drawMode)
	Do nothing in picking.
void	leavePick (GLState &_state, PickTarget _target, unsigned int _drawMode)
	Do nothing in picking.
Private Member Functions
void	setTextureDataGL (GLuint _textureId, GLenum _target, GLint _width, GLint _height, GLenum _format, GLenum _type, const void *_data)
void	checkEmpty ()
	Check if a texture is already generated by this Node.
int	available (GLuint _id)
	check this node for a texture
Private Attributes
std::vector< TextureInfo >	textures_
bool	alpha_
bool	texture_repeat_
GLenum	tex_mode_
GLint	texture_filter_
int	activeTexture_
	currently active texture
Setting textures

GLuint	add_texture (const QImage &_image)
	Add a texture to this node.
void	applyTextureParameters (int _id)
void	applyGLSettings ()

Detailed Description

Set Texture for this node and all its children. All changes will be done in the enter() method undone in the leave() method. Enable Environment Mapping if you need it. To use Blending or AlphaTest use a MaterialNode.

Definition at line 84 of file TextureNode.hh.

Member Function Documentation

bool ACG::SceneGraph::TextureNode::activateTexture ( GLuint _id )

Set active Texture.

Sets the active texture of this node to the given id

Definition at line 500 of file TextureNode.cc.

References activeTexture_, and available().

GLuint ACG::SceneGraph::TextureNode::activeTexture ( )

Get active Texture.

Gets the currently active texture of this node

Definition at line 493 of file TextureNode.cc.

References activeTexture_.

GLuint ACG::SceneGraph::TextureNode::add_texture ( const QImage & _image )

Add a texture to this node.

Definition at line 399 of file TextureNode.cc.

References activeTexture_, and checkEmpty().

void ACG::SceneGraph::TextureNode::applyGLSettings ( ) [private]

Set basic gl settings

Definition at line 125 of file TextureNode.cc.

void ACG::SceneGraph::TextureNode::applyTextureParameters ( int _id ) [private]

Apply the internal texture properties to the currently active texture

Definition at line 139 of file TextureNode.cc.

int ACG::SceneGraph::TextureNode::available ( GLuint _id ) [private]

check this node for a texture

Returns the id of the texture if this node handles the texture.
If not -1.

Definition at line 320 of file TextureNode.cc.

Referenced by activateTexture(), read(), and set_texture().

void ACG::SceneGraph::TextureNode::checkEmpty ( ) [private]

Check if a texture is already generated by this Node.

This function will create a texture if no texture exists and set the activeTexture_ to the new one.

Definition at line 306 of file TextureNode.cc.

References activeTexture_.

Referenced by add_texture(), and set_texture().

bool ACG::SceneGraph::TextureNode::read	(	const char *	_filename,
		GLuint	_id
	)

Uses a QImage to load the texture from the given file.

This function will change the given texture if available.

Definition at line 331 of file TextureNode.cc.

References activeTexture_, available(), and read().

bool ACG::SceneGraph::TextureNode::read ( const char * _filename )

Uses a QImage to load the texture from the given file.

This function will change the active texture.

Definition at line 105 of file TextureNode.cc.

References set_texture().

Referenced by read().

void ACG::SceneGraph::TextureNode::set_texture	(	const unsigned char *	_image,
		int	_width,
		int	_height,
		GLuint	_id
	)

Uses a byte buffer to set the texture.

This function will change the given texture if available.

Assumptions: Buffer is in RGBA format, and either power of two size or using a graphics card that supports arbitrary textures.

Definition at line 380 of file TextureNode.cc.

References activeTexture_, available(), checkEmpty(), and set_texture().

void ACG::SceneGraph::TextureNode::set_texture	(	const float *	_image,
		int	_width,
		int	_height,
		GLuint	_id
	)

Uses a float buffer to set the texture.

This function will change the given texture if available.

Assumptions: Buffer is in RGBA format, and either power of two size or using a graphics card that supports arbitrary textures.

Definition at line 364 of file TextureNode.cc.

References activeTexture_, available(), checkEmpty(), and set_texture().

void ACG::SceneGraph::TextureNode::set_texture	(	const QImage &	_image,
		GLuint	_id
	)

Uses a QImage to set the texture.

This function will change the given texture if available.

Definition at line 347 of file TextureNode.cc.

References activeTexture_, available(), checkEmpty(), and set_texture().

void ACG::SceneGraph::TextureNode::set_texture	(	const unsigned char *	_image,
		int	_width,
		int	_height
	)

Uses a byte buffer to set the texture.

This function will change the active texture.

Assumptions: Buffer is in RGBA format, and either power of two size or using a graphics card that supports arbitrary textures.

Definition at line 230 of file TextureNode.cc.

References activeTexture_, and checkEmpty().

void ACG::SceneGraph::TextureNode::set_texture	(	const float *	_image,
		int	_width,
		int	_height
	)

Uses a float buffer to set the texture.

This function will change the active texture.

Assumptions: Buffer is in RGBA format, and either power of two size or using a graphics card that supports arbitrary textures.

Definition at line 286 of file TextureNode.cc.

References activeTexture_, and checkEmpty().

void ACG::SceneGraph::TextureNode::set_texture ( const QImage & _image )

Uses a QImage to set the texture.

This function will change the active texture.

Definition at line 252 of file TextureNode.cc.

References activeTexture_, and checkEmpty().

Referenced by read(), and set_texture().

Member Data Documentation

int ACG::SceneGraph::TextureNode::activeTexture_ [private]

currently active texture

This index is an index to the textures_ vector! Not the GLuint!!

Definition at line 321 of file TextureNode.hh.

Referenced by activateTexture(), activeTexture(), add_texture(), checkEmpty(), enter(), read(), and set_texture().

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

/data/home1/moebius/projects/release/OpenFlipper-1.0-RC5/ACG/Scenegraph/TextureNode.hh
/data/home1/moebius/projects/release/OpenFlipper-1.0-RC5/ACG/Scenegraph/TextureNode.cc

ACG::SceneGraph::TextureNode Class Reference

Classes

Public Member Functions

Private Member Functions

Private Attributes

Setting textures

Detailed Description

Member Function Documentation

Member Data Documentation