NAME

  Graphics::GVG::OpenGLRenderer - Take a GVG file and turn it into Perl/OpenGL code

DESCRIPTION

ATTRIBUTES

circle_segments / ellipse_segments

In OpenGL, circles aren't really circles. They're polygons with a large number of sides, which blur together enough to look like a circle.

These attributes control how many sides those polygons will have. A circle or ellipse that appears larger on the screen will need to be rendered with a larger number of sides to maintain the illusion.

The default is 40 for both.

METHODS

make_drawer_obj

  my $opengl = $renderer->make_drawer_obj( $ast );

Given an Graphics::GVG::AST object, generates a new Perl object that, when you call its draw() method, will output the GVG description to OpenGL.

The package will be uniquely created under Graphics::GVG::OpenGLRenderer.

make_code

  my $pack_code = $renderer->make_code( $ast );

Given an Graphics::GVG::AST object, returns the code that can be used to create the same kind of Perl object made by make_drawer_obj().

LICENSE

    Copyright (c) 2016  Timm Murray
    All rights reserved.

    Redistribution and use in source and binary forms, with or without 
    modification, are permitted provided that the following conditions are met:

        * Redistributions of source code must retain the above copyright notice, 
          this list of conditions and the following disclaimer.
        * Redistributions in binary form must reproduce the above copyright 
          notice, this list of conditions and the following disclaimer in the 
          documentation and/or other materials provided with the distribution.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 
    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
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