Base class for classes implementing vertex projection in GLSL. More...

Public Member Functions
virtual bool	init (class StelGLSLShader *shader)=0
	Initialize GLSL projection. More...

virtual void	preDraw (class StelGLSLShader *shader)=0
	Called after init() succeeds, directly before drawing. More...

virtual void	postDraw (class StelGLSLShader *shader)=0
	Called after init() succeeds, after drawing. More...

Detailed Description

Base class for classes implementing vertex projection in GLSL.

Each StelProjector implementation can have its own GLSLProjector implementation implementing the project() member function in GLSL.

Definition at line 47 of file StelProjector.hpp.

Member Function Documentation

virtual bool StelProjector::GLSLProjector::init ( class StelGLSLShader * shader )

pure virtual

Initialize GLSL projection.

Called by renderer backend before drawing.

This attempts to attach (or re-enable, if already attached) the projection GLSL code to specified shader.

This function may fail (e.g. due to a build error). In that case, the renderer will fall back to CPU projection.

Parameters

shader Shader to attach the GLSL projection code to.

virtual void StelProjector::GLSLProjector::postDraw ( class StelGLSLShader * shader )

pure virtual

Called after init() succeeds, after drawing.

Used to disable the projection GLSL code.

virtual void StelProjector::GLSLProjector::preDraw ( class StelGLSLShader * shader )

pure virtual

Called after init() succeeds, directly before drawing.

This is used to set up uniforms.

Parameters

shader Shader previously passed to init() in bound state, ready to set uniforms.

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