usg::ShaderSource Class Reference

Interface to define shader source code. More...

#include <ShaderSource.h>

Public Member Functions
	ShaderSource (const MaterialSource &materialSourceGen, const ShaderSchema *schema, std::stringstream &sourceDest)
const SourceCodeGenerator &	sourceTypeGenerator () const
	Returns the SourceCodeGenerator that created this MaterialSource.
const usg::Token &	sourceType () const
	Returns the source target type of the generator.
const MaterialSource &	materialSource () const
	Returns the MaterialSource that created this ShaderSource.
virtual void	startFunction ()=0
	Starts a shader function with the given set of inputs.
virtual void	emitLine (const std::string &line)=0
	Emits the shader line source.
virtual std::string	input (const std::string &name)=0
	Returns code required to retrieve a value from the named input.
virtual std::string	sampleTexture (const std::string &inputName, const std::string &texCoordVarName)=0
	Returns code that allows sampling of a texture at the given texture coordinate.
virtual void	output (const std::string &name, const std::string &expression)=0
	Declares and defines a shader output to be equal to the given expression.
virtual void	endFunction ()=0
	Ends the shader function.
virtual fdk::StringList	inputs () const =0
	Return the list of named inputs created by calls to input().
virtual const fdk::StringSet &	textures () const =0
	Return the list of named texture inputs created by calls to input().

Protected Attributes
const MaterialSource &	_materialSource
const ShaderSchema *	_shaderSchema
std::stringstream &	_sourceDest

Detailed Description

Interface to define shader source code.