Reference TShaderProgram

  TShaderProgram = class(TShaderObject)
  public
    { Create an empty shader program with nothing attached }
    constructor Create;
    { Create a shader given a vertex and fragement source }
    constructor CreateFromSource(const VertSource, FragSource: string);
    { Create a shader program from a resource or asset }
    constructor CreateFromAsset(const Name: string); overload;
    { Create a shader program with two files ending in .vert and .frag }
    constructor CreateFromFile(const ProgramName: string); overload;
    { Create a shader program two specific vert and frag files }
    constructor CreateFromFile(const VertFileName, FragFileName: string); overload;
    destructor Destroy; override;
    { Add the shader to the program stack and activate it }
    procedure Push;
    { Remove the shader to from the program stack and deactivate it }
    procedure Pop;
    { Attach a vertex or fragment source }
    procedure Attach(Source: TShaderSource);
    { Perform linking of attached sources returning true if there were no errors }
    function Link: Boolean;
    { Update the modelview and projection matrix uniforms for this program }
    procedure UpdateMatrix;
    { Active is the same as pushing or popping }
    property Active: Boolean read GetActive write SetActive;
  end;