PropaneShader Class Reference

A cross platform GLSL shader object. More...

#include <PropaneShader.h>

List of all members.

Public Member Functions
bool	hasExtensionsInstalled ()
	Returns true if the fragment and vertex shader extensions are enabled.
bool	hasMultitexture ()
	Returns true if the device has multitexture support.
bool	functional () const
	Returns true if the shader functionality is usable.
void	configureGL (int width, int height)
	Sets up OpenGL for your platform to use shaders.
	~PropaneShader ()
	Destroy the shader and free the temporary texture.
	PropaneShader (int t_width, int t_height, bool disableRTT=false)
	Load the shader from a vertex and fragment source code file.
bool	load (char *vertexfile, char *fragmentfile)
	Load the shader from a vertex and fragment source code file.
int	loadShaderFile (char *vertexfile, char *fragmentfile)
	Loads the shader from file.
int	compileShader (const std::string &vertexProgram, const std::string &fragmentProgram)
	Loads the shader from a character buffer, made by first running loadShaderFile.
void	dumpLog (char *filename)
	Drops the compile log to file.
void	passTexture (GLuint *mtexture)
	Passes a texture to the shader.
GLint	getUniformLocation (const std::string &name)
	Gets the value for a uniform from the shader.
void	passUniform (GLint location, GLfloat value)
	Passes a value to the shader.
void	turnOn ()
	Enables the shader.
void	turnOff ()
	Disables the shader.
void	beginRenderToTexture ()
	Starts rendering to texture.
void	endRenderToTexture ()
	Stops rendering to texture.
GLuint *	getRenderTexture ()
	Allows you to get a pointer to the render texture.
void	initRenderToTexture (int t_width, int t_height)
	Clears the render target texture.
Protected Attributes
GLhandleARB	v
	Handles to the vertex shader, fragment shader, and program.
GLuint *	texture
	The render-target texture.
GLuint *	framebuffer
	The FBO framebuffer texture.
int	iWidth
	The width and height of the render-target.
bool	hasFBO
	If the machine has the Frame Buffer Object extension installed, otherwise put them in "dumb" RTT mode.
bool	hasNonPow2
	If the machine has non-power of 2 extension installed.
bool	shaderCapable
	An internal variable if the current machine is shader capable.

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Detailed Description

A cross platform GLSL shader object.

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Member Function Documentation

GLint PropaneShader::getUniformLocation (  const std::string &  name  )

Gets the value for a uniform from the shader. Get a uniform's location from the video card using glGetUniformLocation Parameters: name  The name of the uniform (for example, "time") Returns: The handle to the uniform's address

void PropaneShader::passUniform (  GLint  location, GLfloat  value )

Passes a value to the shader. Passes a floating point value to a uniform using glUniform1f Parameters: location  The handle to the uniform (obtained from PropaneShader::getUniformLocation) value  The floating point value to pass to the shader

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

• OldShaders/PropaneShader.h
• PropaneRenderToTexture.cpp
• OldShaders/PropaneShader.cpp

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