Reference TShaderSource

  TShaderSource = class(TShaderObject)
  public
    destructor Destroy; override;
    { Compile the shader and return the compile status. If the source does not
      begin with a #version directive one is added to match the OpenGL API
      selected in render.inc, so the same source can target desktop and ES. }
    function Compile(Source: string): Boolean;
    { The source code as stored by the compile method }
    property Source: string read FSource;
  end;