NAME

OpenGL::Shader::Common - copyright 2007 Graphcomp - ALL RIGHTS RESERVED
Author: Bob "grafman" Free - grafman@graphcomp.com

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

DESCRIPTION

This module provides a base class for OpenGL shader types.
Requires the OpenGL module.

SYNOPSIS

##########
# Instantiate a shader

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();