NAME¶

OpenGL::Shader::Common - base class for use with OpenGL::Shader

SYNOPSIS¶

  # Instantiate a shader
  use OpenGL::Shader;
  my $shdr = new OpenGL::Shader();

DESCRIPTION¶

This module provides a base class for OpenGL shader types. Example usage:

  use OpenGL::Shader;
  my $shdr = new OpenGL::Shader();
  ##########
  # Methods defined in this module:
  # Get shader type.
  my $type = $shdr->GetType();
  # Get shader version
  my $ver = $shdr->GetVersion();
  # Get shader description
  my $desc = $shdr->GetDescription();
  # Load shader files.
  my $stat = $shdr->LoadFiles($fragment_file,$vertex_file);
  # Get shader GL constants.
  my $fragment_const = $shdr->GetFragmentConstant();
  my $vertex_const = $shdr->GetVertexConstant();
  # Get objects.
  my $fragment_shader = $shdr->GetFragmentShader();
  my $vertex_shader = $shdr->GetVertexShader();
  my $program = $shdr->GetProgram();
  ##########
  # Methods defined in subclasses:
  # Load shader text.
  $shdr->Load($fragment,$vertex);
  # Enable shader.
  $shdr->Enable();
  # Set Vertex Attribute
  my $attr_id = $self->MapAttr($attr_name);
  glVertexAttrib4fARB($attr_id,$x,$y,$z,$w);
  # Get Global Variable ID (uniform/env)
  my $var_id = $self->Map($var_name);
  # Set float4 vector variable
  $stat = $self->SetVector($var_name,$x,$y,$z,$w);
  # Set float4x4 matrix via OGA
  $stat = $self->SetMatrix($var_name,$oga);
  # Disable shader.
  $shdr->Disable();
  # Destructor.
  $shdr->DESTROY();

AUTHOR¶

Bob "grafman" Free - grafman@graphcomp.com. Copyright 2007 Graphcomp - ALL RIGHTS RESERVED

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.