Карта высот картинки
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{
вы знаете что такое карта высот?
можно создать супер эффект на простом Canvas
к сожалению мой код моргает при перерисовке,
но вы уж поковыряйтесь.... :)
}

unit Unit1;

interface

uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
ExtCtrls, StdCtrls, ExtDlgs, math, ComCtrls, ShellApi;

type
TForm1 = class(TForm)
Image1: TImage;
OpenDialog1: TOpenDialog;
Timer1: TTimer;
PageControl1: TPageControl;
Specular: TTabSheet;
sRed: TEdit;
Label1: TLabel;
ScrollBar1: TScrollBar;
Label2: TLabel;
sGreen: TEdit;
ScrollBar2: TScrollBar;
ScrollBar3: TScrollBar;
sBlue: TEdit;
Label3: TLabel;
Label4: TLabel;
Edit1: TEdit;
ScrollBar4: TScrollBar;
Diffuse: TTabSheet;
Ambient: TTabSheet;
Label5: TLabel;
Label6: TLabel;
Label7: TLabel;
dGreen: TEdit;
dBlue: TEdit;
dRed: TEdit;
ScrollBar5: TScrollBar;
ScrollBar6: TScrollBar;
ScrollBar7: TScrollBar;
Label8: TLabel;
Label9: TLabel;
Label10: TLabel;
aBlue: TEdit;
aGreen: TEdit;
aRed: TEdit;
ScrollBar8: TScrollBar;
ScrollBar9: TScrollBar;
ScrollBar10: TScrollBar;
Label11: TLabel;
Label12: TLabel;
Edit2: TEdit;
Label13: TLabel;
procedure FormCreate(Sender: TObject);
procedure Image1MouseMove(Sender: TObject; Shift: TShiftState; X,
Y: Integer);
procedure ScrollBarChange(Sender: TObject);
procedure Label11Click(Sender: TObject);
procedure Timer1Timer(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;

type
normal = record
x: integer;
y: integer;
end;

type
rgb32 = record
b: byte;
g: byte;
r: byte;
t: byte;
end;
type
rgb24 = record
r: integer;
g: integer;
b: integer;
end;

var
Form1: TForm1;
bumpimage: tbitmap;
current_X, Current_Y: integer;
var
Bump_Map: array[0..255, 0..255] of normal;
Environment_map: array[0..255, 0..255] of integer;
Palette: array[0..256] of rgb24;

implementation

{$R *.DFM}

procedure TForm1.FormCreate(Sender: TObject);
type
image_array = array[0..255, 0..255] of byte;
var
x, y: integer;
Buffer: image_array;
bump_file: file of image_array;
ny2, nx, nz: double;
c: integer;
ca, cap: double;
begin
assignfile(bump_File, 'bump.raw');
reset(Bump_File);
Read(Bump_File, buffer);
for y := 1 to 254 do
begin
for x := 1 to 254 do
begin
Bump_Map[x, y].x := buffer[y + 1, x] - buffer[y + 1, x + 2];
bump_map[x, y].y := buffer[y, x + 1] - buffer[y + 2, x + 1];
end;
end;
closefile(bump_File);

for y := -128 to 127 do
begin
nY2 := y / 128;
nY2 := nY2 * nY2;
for X := -128 to 127 do
begin
nX := X / 128;
nz := 1 - SQRT(nX * nX + nY2);
c := trunc(nz * 255);
if c 255 then
palette[y].r := 255;
palette[y].G := trunc((128 * ca) + (245 * cap));
if palette[y].g > 255 then
palette[y].g := 255;
palette[y].B := trunc(5 + (170 * ca) + (255 * cap));
;
if palette[y].b > 255 then
palette[y].b := 255;
end;
bumpimage := TBitmap.create;
bumpimage.width := 255;
bumpimage.height := 255;
bumpimage.PixelFormat := pf32bit;
Image1.Picture.Bitmap := bumpimage;
image1mousemove(self, [], 128, 128);
application.ProcessMessages;

end;

procedure TForm1.Image1MouseMove(Sender: TObject; Shift: TShiftState; X,
Y: Integer);
begin
Current_X := x;
Current_Y := y;
end;

procedure TForm1.Timer1Timer(Sender: TObject);
var
x, y, x2, y2, y3: integer;
Scan: ^Scanline;
bx, by: longint;
c: byte;
begin
x := Current_X;
y := Current_Y;
for y2 := 0 to 253 do
begin
scan := image1.Picture.Bitmap.ScanLine[y2];
y3 := 128 + y2 - y;
for x2 := 0 to 253 do
begin
bx := bump_Map[x2, y2].x + 128 + x2 - x;
by := bump_Map[x2, y2].y + y3;
if (bx 0) and (by 0) then
begin
c := Environment_Map[bx, by];
scan^[x2].r := palette[c].r;
scan^[x2].g := palette[c].g;
scan^[x2].b := palette[c].b;
end
else
begin
scan^[x2].r := palette[0].r;
scan^[x2].g := palette[0].g;
scan^[x2].b := palette[0].b;
end;
{image1.Canvas.Pixels[x,y] := rgb(r,g,b);}
end;
end;
image1.Refresh;

end;

procedure TForm1.ScrollBarChange(Sender: TObject);
var
ny2, nx: double;
c: integer;
ca, cap: double;
begin
sRed.Text := inttostr(scrollbar1.position);
sGreen.Text := inttostr(scrollbar2.position);
sBlue.Text := inttostr(scrollbar3.position);
edit1.Text := inttostr(scrollbar4.position);

dRed.Text := inttostr(scrollbar5.position);
dGreen.Text := inttostr(scrollbar6.position);
dBlue.Text := inttostr(scrollbar7.position);

aRed.Text := inttostr(scrollbar8.position);
aGreen.Text := inttostr(scrollbar9.position);
aBlue.Text := inttostr(scrollbar10.position);

nx := pi / 2;
ny2 := nx / 256;
for C := 0 to 255 do
begin
ca := cos(nx);
cap := power(ca, scrollbar4.position);
nx := nx - ny2;
palette[c].r := trunc(scrollbar8.position + (scrollbar5.position * ca) +
(scrollbar1.position * cap));
if palette[c].r > 255 then
palette[c].r := 255;
palette[c].G := trunc(scrollbar9.position + (scrollbar6.position * ca) +
(scrollbar2.position * cap));
if palette[c].g > 255 then
palette[c].g := 255;
palette[c].B := trunc(scrollbar10.position + (scrollbar7.position * ca) +
(scrollbar3.position * cap));
;
if palette[c].b > 255 then
palette[c].b := 255;
end;
image1mousemove(self, [], Current_X, Current_Y);
application.ProcessMessages;

end;

procedure TForm1.Label11Click(Sender: TObject);
begin
ShellExecute(handle, 'open', 'http://wkweb5.cableinet.co.uk/daniel.davies/',
nil, nil, SW_SHOWNORMAL);
end;

end.