STK::FBODepthTexture Class Reference

#include <StkFBODepthTexture.h>

Inheritance diagram for STK::FBODepthTexture:

Public Member Functions
	FBODepthTexture (int width, int height, int depth_bits=24)
void	setWidth (int w)
void	setHeight (int h)
int	getFBHandle ()
void	setDepthBits (int depth)
int	getDepthBits () const
void	beginRTT ()
void	endRTT ()
void	activate ()
bool	loadInternal ()
void	upload ()
void	clearFBO ()
Public Member Functions inherited from STK::Texture
	Texture (TextureManager *tex_mgr, int texture_unit=0)
	Texture (int texture_unit=0)
GLuint	getHandle () const
virtual void	activate ()=0
virtual void	upload ()=0
void	deactivate (GLenum target)
void	unload (GLenum target)
void	setHorizontalWrap (GLenum wrap)
void	setVerticalWrap (GLenum wrap)
void	setAnisotropy (float anisotropy)
float	getAnisotropy () const
GLenum	getHorizontalWrap () const
GLenum	getVerticalWrap () const
void	setMinFilter (GLenum min)
void	setMagFilter (GLenum mag)
GLenum	getMinFilter () const
GLenum	getMagFilter () const
int	getTextureUnit () const
void	setTextureUnit (int texture_unit)
void	setStatus (LoadState state)
LoadState	getStatus () const
void	clear ()
int64_t	getTimestamp () const

Protected Member Functions
bool	checkFBOStatus () const
bool	initFBO ()
Protected Member Functions inherited from STK::Texture
void	applyTextureParameters (GLenum target)
void	getGLFormat (Image::Format fmt, GLenum &int_fmt, GLenum &data_fmt, GLenum &data_type)
void	uploadTexture (const STK::Image &img, GLenum target)
virtual bool	loadInternal ()=0

Protected Attributes
GLint	prev_fb_ {0}
GLuint	fb_ { 0 }
GLuint	rb_ { 0 }
int	width_ { 0 }
int	height_ { 0 }
int	depth_bits_ { 0 }
Protected Attributes inherited from STK::Texture
TextureManager *	tex_mgr_
GLuint	handle_
int	texture_unit_
GLenum	vertical_wrap_
GLenum	horizontal_wrap_
GLenum	mag_filter_
GLenum	min_filter_
GLfloat	anisotropy_
int64_t	timestamp_
int	memsize_
std::atomic< int >	load_state_

Additional Inherited Members
Public Types inherited from STK::Texture
enum	LoadState { INITIAL , LOADING , LOADED , FAILED }
Static Public Member Functions inherited from STK::Texture
static int	getNumActiveTextures ()
Static Protected Attributes inherited from STK::Texture
static int	s_numActiveTextures = 0

Detailed Description

FBODepthTexture - FBO Depth texture. This class can be used for rendering to a depth texture. This is for instance used in shadow mapping.

Member Function Documentation

activate()

void FBODepthTexture::activate ( )

virtual

Activate texture. This method will upload the texture data to OpenGL if not already done, and set this texture as current texture for all texture operations on the current texture unit.

Implements STK::Texture.

beginRTT()

void FBODepthTexture::beginRTT

(

)

Start rendering to texture. This method will initialize the the frame buffer if necessary All OpenGL drawing after this is done in the frame buffer

endRTT()

void FBODepthTexture::endRTT

(

)

Finish rendering to texture. This method will finish the rendering and create a GL texture from the contents of the frame buffer.

loadInternal()

bool FBODepthTexture::loadInternal ( )

virtual

Load from disk and upload to graphics card. This method should load the texture resources from disk.

Implements STK::Texture.

setDepthBits()

void STK::FBODepthTexture::setDepthBits ( int  depth )

inline

Set z buffer depth for offscreen rendering. If this value > 0, an offscreen render buffer for z buffering will be created with the specified depth or closest matching depth.

upload()

void FBODepthTexture::upload ( )

virtual

Upload texture data to graphics card. This requires a valid OpenGL context. If threaded GL and shared contexts are supported this can be done from the texture loader thread.

Implements STK::Texture.

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

• Native/SilentToolkit/StkScene/StkFBODepthTexture.h
• Native/SilentToolkit/StkScene/StkFBODepthTexture.cpp