unit fPostEffectD;

interface

uses
  Winapi.OpenGL,
  System.SysUtils,
  System.Classes,
  Vcl.Graphics,
  Vcl.Controls,
  Vcl.Forms,
  Vcl.Dialogs,
  Vcl.StdCtrls,
  Vcl.ExtCtrls,
  Vcl.ComCtrls,
  Vcl.Imaging.Jpeg,

  
  GLS.Scene,
  GLS.PersistentClasses,
  GLS.VectorFileObjects,
  GLS.Objects,
  GLS.Texture,
  GLS.VectorLists,
  GLS.Cadencer,
  GLS.SceneViewer,
  GLS.SimpleNavigation,
  GLSL.PostEffects,
 
  GLS.MeshUtils,
  Stage.VectorGeometry,
  GLS.Material,
  GLS.Coordinates,
  GLS.BaseClasses,
  GLS.RenderContextInfo,
  Stage.Utils,
  GLS.FileMD2,
  GLS.FileTGA,
  GLS.FileOBJ,
  GLS.File3DS,
  GLS.FileSMD;


type
  TFormPostEffect = class(TForm)
    GLScene1: TGLScene;
    GLCamera1: TGLCamera;
    GLMaterialLibrary1: TGLMaterialLibrary;
    GLCadencer1: TGLCadencer;
    GLActor1: TGLActor;
    Label1: TLabel;
    GLLightSource1: TGLLightSource;
    Panel1: TPanel;
    GLSceneViewer1: TGLSceneViewer;
    ComboBox1: TComboBox;
    GLPostEffect1: TGLPostEffect;
    Label2: TLabel;
    GLSimpleNavigation1: TGLSimpleNavigation;
    procedure GLCadencer1Progress(Sender: TObject; const DeltaTime, newTime: Double);
    procedure FormCreate(Sender: TObject);
    procedure ComboBox1Change(Sender: TObject);
    procedure GLPostEffect1CustomEffect(Sender: TObject;
      var rci: TGLRenderContextInfo; var Buffer: TGLPostEffectBuffer);
  private
  end;

var
  FormPostEffect: TFormPostEffect;

implementation

{$R *.dfm}

procedure TFormPostEffect.GLCadencer1Progress(Sender: TObject; const DeltaTime, newTime: Double);
begin
  GLSceneViewer1.Invalidate;
end;

procedure TFormPostEffect.FormCreate(Sender: TObject);
begin
  var Path: TFileName := GetCurrentAssetPath();
  SetCurrentDir(Path  + '\modelext');
  GLActor1.LoadFromFile('waste.md2');

  GLMaterialLibrary1.TexturePaths := GetCurrentDir();
  GLActor1.Material.Texture.Image.LoadFromFile('waste.jpg');
  GLActor1.Material.Texture.Enabled := True;
  GLActor1.SwitchToAnimation(GLActor1.Animations[0]);

  GLActor1.AnimationMode := aamLoop;
  GLActor1.ObjectStyle := GLActor1.ObjectStyle + [osDirectDraw];
  GLActor1.Reference := aarMorph;
end;

procedure TFormPostEffect.ComboBox1Change(Sender: TObject);
begin
  case ComboBox1.ItemIndex of
    0: GLPostEffect1.Preset := pepNone;
    1: GLPostEffect1.Preset := pepGray;
    2: GLPostEffect1.Preset := pepNegative;
    3: GLPostEffect1.Preset := pepDistort;
    4: GLPostEffect1.Preset := pepNoise;
    5: GLPostEffect1.Preset := pepNightVision;
    6: GLPostEffect1.Preset := pepBlur;
    7: GLPostEffect1.Preset := pepCustom;
  end;
end;

{$R-} // Turn off range checking.
procedure TFormPostEffect.GLPostEffect1CustomEffect(Sender: TObject;
  var rci: TGLRenderContextInfo; var Buffer: TGLPostEffectBuffer);
var
  I: Longword;
begin
  for I := 0 to High(Buffer) do
  begin
    Buffer[I].r := Round(Buffer[I + 5].r * 2);
    Buffer[I].g := Round(Buffer[I].g * 1.5);
    Buffer[I].b := Round(Buffer[I + 5].b * 1.5);
  end;
end;
{$R+}
end.