PYME.LMVis.shader_programs.shader_program module

exception PYME.LMVis.shader_programs.shader_program.GLProgramException(*args, **kwargs)

Bases: OSError

This class is used if an error in the OpenGLProgramHandler occurs You usually only pass the text message to the constructor and raise the exception

class PYME.LMVis.shader_programs.shader_program.ShaderProgram(shader_path='./shaders/')

Bases: object

This class handles all OpenGl-PROGRAM related stuff

This includes loading and adding shaders, compiling them and handling or raising exceptions.

Parameters

shader_path – the folder that contains the shader sources ending with a ‘/’ It can be relative or absolute.

:raises GLProgramException if glUseProgram is not successful

add_shader(shader_name, shader_type)

This method adds a new shader module to the program.

Parameters

  • shader_name – the filename of the shader that should be loaded keep in mind that the shader_path was set in __init__

  • shader_type – defines the stage the shader should be added e.g. GL_VERTEX_SHADER, GL_FRAGMENT_SHADER

Returns

nothing

Raises

GLShaderLoadException if the shader could not be loaded

Raises

GLProgramException if the shader could not be compiled

get_uniform_location(uniform_name)
use()
PYME.LMVis.shader_programs.shader_program.read_shader(shader_name, path)

This method reads a given shader within a given file path

Parameters

  • shader_name – the name of the shader file

  • path – the path where the shader is stored on disk

Returns

a string representing the shader

Raises

GLShaderLoadException if the shader could not be loaded