spin::Shader Class Reference

A wrapper for GLSL shaders. More...

#include <Shader.h>

Inheritance diagram for spin::Shader:

List of all members.

Public Member Functions
	Shader (SceneManager *sceneManager, const char *initID)
virtual void	updateCallback ()
virtual void	debug ()
void	printShaderSource ()
void	clearUniforms ()
void	registerUniform (const char *name, const char *type)
void	registerUniform (const char *name, const char *type, const char *defaultValue)
bool	loadJitterShader (std::string path)
void	loadGLSLShader (std::string path)
void	setUniform_bool (const char *name, int b)
void	setUniform_int (const char *name, int b)
void	setUniform_float (const char *name, float f)
void	setUniform_vec2 (const char *name, float x, float y)
void	setUniform_vec3 (const char *name, float x, float y, float z)
void	setUniform_vec4 (const char *name, float x, float y, float z, float w)
void	setShader (const char *path)
const char *	getShader () const
virtual std::vector< lo_message >	getState () const
Protected Attributes
osg::ref_ptr< osg::Program >	programObject_
osg::ref_ptr< osg::Shader >	vertexObject_
osg::ref_ptr< osg::Shader >	fragmentObject_
std::string	shaderPath_
float	updateRate_
osg::Timer_t	lastTick_

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Detailed Description

A wrapper for GLSL shaders.

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Member Function Documentation

void spin::Shader::clearUniforms

(

)

Remove all uniforms from this stateset

void spin::Shader::debug

(

)

[virtual]

Print debug information to console.

Reimplemented from spin::ReferencedStateSet.

Reimplemented in spin::ImageTexture, spin::SharedVideoTexture, spin::SyphonTexture, and spin::VideoTexture.

std::vector< lo_message > spin::Shader::getState

(

)

const [virtual]

Just like a ReferencedNode, each subclass of ReferencedStateSet must override the getState() method to pass it's current state.

Reimplemented from spin::ReferencedStateSet.

Reimplemented in spin::ImageTexture, spin::SharedVideoTexture, spin::SyphonTexture, and spin::VideoTexture.

void spin::Shader::registerUniform	(	const char *	name,
		const char *	type
	)

Create a uniform with the provided name and type. The value will be set to some default value

void spin::Shader::registerUniform	(	const char *	name,
		const char *	type,
		const char *	defaultValue
	)

Create a uniform with the provided name and type, and set the initial value for the uniform.

Note that defaults are provided as strings in all cases. So in the case of several values, the defaultValue would be a space-separated list of values.

It is also possible to specify an array of vectors. For example, if the type is vec2, you can specify a defaultValue of 0.0 0.1 1.0 1.0 and this will generate two vec2 uniforms with indexes automatically added to the name: uniform name[0] = vec2(0.0,0.1); uniform name[1] = vec2(1.0,1.0); To send OSC messages to control these uniforms, you need to use the full name including square brackets. For example: /SPIN/default/shader setUniform_vec2 name[0] 0.0 0.0

void spin::Shader::setShader

(

const char *

path

)

Creates a texture from a path on disk.

void spin::Shader::updateCallback

(

)

[virtual]

This callback occurs every frame to update the state with any parameter changes.

Reimplemented from spin::ReferencedStateSet.

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

• include/Shader.h
• src/spin/Shader.cpp