beedama-korokoro
displacement map filterの練習用
物理演算にBox2Dを使おうとしたけど、導入に時間がかかりそうで１日１Flashを
まもれそうになかったので、擬似的に実装。振動があるけど雰囲気は楽しめると思う
玉の屈折なども完全に擬似的なもの。こちらも雰囲気だけお楽しみください
しかし、Flashはadobeなだけあってフィルタ類が充実していて高速でよいです
TODO：時間があればBox2Dで再実装
TODO：試行錯誤中にできたコードのゴミをリファクタリング
遊び方：中心からのマウスの位置でその方向に重力発生
玉をクリックすると、その玉を放り出す
玉が無いところをクリックすると、玉の追加
[Z]でランダムなサイズで玉を生成するモードに切り替え
2010.4.3 コメントアウトしていたコードを除去
2010.4.3 複数サイズの玉を出したさいの衝突判定バグ修正
2010.4.3 [Z]でランダムなサイズで玉を生成するモードに切り替え
/**
* Copyright zendenmushi ( http://wonderfl.net/user/zendenmushi )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/1qWQ
*/
// displacement map filterの練習用
// 物理演算にBox2Dを使おうとしたけど、導入に時間がかかりそうで１日１Flashを
// まもれそうになかったので、擬似的に実装。振動があるけど雰囲気は楽しめると思う
// 玉の屈折なども完全に擬似的なもの。こちらも雰囲気だけお楽しみください
// しかし、Flashはadobeなだけあってフィルタ類が充実していて高速でよいです
// TODO：時間があればBox2Dで再実装
// TODO：試行錯誤中にできたコードのゴミをリファクタリング
// 遊び方：中心からのマウスの位置でその方向に重力発生
// 玉をクリックすると、その玉を放り出す
// 玉が無いところをクリックすると、玉の追加
// [Z]でランダムなサイズで玉を生成するモードに切り替え
// 2010.4.3 コメントアウトしていたコードを除去
// 2010.4.3 複数サイズの玉を出したさいの衝突判定バグ修正
// 2010.4.3 [Z]でランダムなサイズで玉を生成するモードに切り替え
package
{
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.BitmapDataChannel;
import flash.display.BlendMode;
import flash.display.Sprite;
import flash.events.Event;
import flash.events.KeyboardEvent;
import flash.events.MouseEvent;
import flash.filters.DisplacementMapFilter;
import flash.geom.Matrix;
import flash.geom.Point;
import flash.geom.Rectangle;
import frocessing.core.F5BitmapData2D;
/**
* ...
* @author TMaeda
*/
[SWF(width=465,height=465,backgroundColor=0xcccccc,frameRate=60)]
public class Beedama extends Sprite
{
private var displacement : BitmapData;
private var wood : BitmapData;
private var wood2 : BitmapData;
private var back : F5BitmapData2D;
private var backRect : Rectangle = new Rectangle();
private var zeroPoint : Point = new Point(0,0);
private var temppos : Point = new Point();
private var displaceFilter : DisplacementMapFilter;
private var mouseIsDown : Boolean = false;
private var mouseClicked : Boolean = false;
private var lastPoint : Point = new Point();
private var randomSizeMode : Boolean = false;
//
private var tamas : Vector.<Tama> = new Vector.<Tama>;
private var freep : int = -1;
private const itemlimit : int = 5000;
public function Beedama()
{
if (stage) init();
else addEventListener(Event.ADDED_TO_STAGE, init);
}
private function init(e:Event=null):void
{
removeEventListener(Event.ADDED_TO_STAGE, init);
addEventListener(Event.ENTER_FRAME, enterFrame);
stage.addEventListener(MouseEvent.MOUSE_DOWN, mouseDown);
stage.addEventListener(MouseEvent.MOUSE_UP, mouseUp);
stage.addEventListener(KeyboardEvent.KEY_DOWN, keyDown);
wood = new BitmapData(stage.stageWidth*2, stage.stageHeight*2);
wood2 = new BitmapData(stage.stageWidth, stage.stageHeight);
wood.perlinNoise(stage.stageWidth * 2, stage.stageHeight / 2, 2, 0, true, false,7,true);
back = new F5BitmapData2D(stage.stageWidth, stage.stageHeight, true, 0);
displacement = new BitmapData(stage.stageWidth, stage.stageHeight, true, 0x808080);
displaceFilter = new DisplacementMapFilter(displacement,null,BitmapDataChannel.GREEN, BitmapDataChannel.BLUE,back.width/2, back.height/2);
addChild(new Bitmap(back.bitmapData));
backRect.x = 0;
backRect.y = 0;
backRect.width = stage.stageWidth;
backRect.height = stage.stageHeight;
wood2.lock();
for (var y : int = 0; y < wood2.height; y++) {
for (var x : int = 0; x < wood2.width; x++) {
var sum : Number = 0;
for (var i : int = 0; i < 4; i++) {
var g : Number = ((wood.getPixel32(x*2 + (i & 1), y*2 + (i >> 1)) & 0xff) / 256.0) * 20;
sum += (g - (g >> 0))*255;
}
var col : int = (sum / 4+10)*256/(256+10);
col = 0xff000000 | ((col*0.2) << 0) | ((col*0.6) << 8) | (col << 16);
wood2.setPixel32(x, y, col );
}
}
wood2.unlock();
randomSizeMode = false;
clear();
generateBalls(randomSizeMode,10);
}
private function keyDown(e:KeyboardEvent):void
{
if (e.charCode == 122) {
for (var i : int = freep; i >= 0; i--) {
var tama : Tama = tamas[i];
tama.drop = true;
//remove(tama.index);
tama.dx = tama.x > stage.stageWidth / 2 ? stage.stageWidth : 0;
tama.dy = 0;
}
randomSizeMode = !randomSizeMode;
generateBalls(randomSizeMode,10);
}
}
public function generateBalls(randomMode : Boolean, count : int) : void
{
for (var ball : int = 0 ; ball < count; ball++) {
var r : int = randomMode ? Math.random() * 40 + 24 : 32;
var tama : Tama = newItem(Math.random() * (stage.stageWidth - r * 2) + r, Math.random() * (stage.stageHeight - r * 2) + r, 0, 0, r, back);
if (tama) {
tama.image.rl.r = Math.random();
tama.image.rl.g = Math.random();
tama.image.rl.b = Math.random();
tama.image.tcol.r = Math.random();
tama.image.tcol.g = Math.random();
tama.image.tcol.b = Math.random();
tama.image.render(r, r, true);
}
}
}
private function newItem(x : Number, y : Number , dx : Number, dy : Number, r : int, back : F5BitmapData2D ) : Tama
{
var cnt : int = tamas.length;
if (((itemlimit > 0) && cnt >= itemlimit) && (freep >= cnt-1)) return null;
freep++;
if (freep == cnt) {
tamas[cnt] = new Tama(r*2,r*2, back.bitmapData);
} else {
tamas[freep].regenerate(r*2,r*2, back.bitmapData);
}
tamas[freep].index = freep;
tamas[freep].visible = true;
tamas[freep].x = x;
tamas[freep].y = y;
tamas[freep].dx = dx;
tamas[freep].dy = dy;
tamas[freep].r = r;
tamas[freep].drop = false;
tamas[freep].dropstate = 0;
tamas[freep].minx = false;
tamas[freep].maxx = false;
tamas[freep].miny = false;
tamas[freep].maxy = false;
return tamas[freep];
}
private function remove(index : int) : void
{
var cnt : int = tamas.length;
var temp : Tama = tamas[index];
var lastp : int = freep;
temp.visible = false;
if (lastp != index) {
tamas[index] = tamas[lastp];
tamas[index].index = index;
tamas[lastp] = temp;
}
freep = lastp - 1;
}
private function clear() : void
{
for (var i : int = freep; i >= 0; i--) {
var tama : Tama = tamas[i];
remove(i);
}
}
private function mouseUp(e:MouseEvent):void
{
mouseClicked = false;
if (Math.abs(lastPoint.x - stage.mouseX) + Math.abs(lastPoint.y - stage.mouseY) < 8) {
mouseClicked = true;
}
mouseIsDown = false;
}
private function mouseDown(e:MouseEvent):void
{
lastPoint.x = stage.mouseX;
lastPoint.y = stage.mouseY;
mouseIsDown = true;
}
private function enterFrame(e:Event):void
{
var i : int;
var tama : Tama, tama2 : Tama;
var gx : Number = (stage.mouseX - stage.stageWidth / 2)/4;
var gy : Number = (stage.mouseY - stage.stageHeight / 2)/4;
var l : Number = Math.sqrt(gx * gx + gy * gy);
var addflg : Boolean = mouseClicked;
if (l > 0) {
if (l >8) {
gx = (gx/l)*10;
gy = (gy/l)*10;
}
} else {
gx = 0;
gy = 0;
}
back.bitmapData.copyPixels(wood2, wood2.rect, zeroPoint);
for (i = freep; i >= 0; i--) {
tama = tamas[i];
var ax : Number = gx;
var ay : Number = gy;
var len : Number = Math.sqrt( (tama.x - stage.mouseX) * (tama.x - stage.mouseX) + (tama.y- stage.mouseY) * (tama.y - stage.mouseY));
if (!tama.drop) {
if (mouseClicked) {
if (len < tama.r) {
tama.drop = true;
//remove(tama.index);
tama.dx = tama.x > stage.stageWidth / 2 ? stage.stageWidth : 0;
tama.dy = 0;
addflg = false;
continue;
}
}
tama.x += tama.dx;
tama.y += tama.dy;
tama.maxx = (tama.x > stage.stageWidth - tama.r);
if (tama.maxx) {
tama.dx *= -1;
tama.x = stage.stageWidth - tama.r;
}
tama.minx = (tama.x < tama.r);
if (tama.minx) {
tama.dx *= -1;
tama.x = tama.r;
}
tama.maxy = (tama.y > stage.stageHeight - tama.r);
if (tama.maxy) {
tama.dy *= -1;
tama.y = stage.stageHeight - tama.r;
}
tama.miny = (tama.y < tama.r);
if (tama.miny) {
tama.dy *= -1;
tama.y = tama.r;
}
tama.dx += (ax - tama.dx) / 8;
tama.dy += (ay - tama.dy) / 8;
} else {
tama.x += (tama.dx - tama.x) / 16;
tama.y += (tama.dy - tama.y) / 4;
tama.dropstate++;
if (tama.dropstate > 8) remove(tama.index);
}
}
back.beginDraw();
back.stroke(0xff, 0xff, 0xff);
back.moveTo(stage.stageWidth / 2, stage.stageHeight / 2);
back.lineTo(stage.mouseX, stage.mouseY);
back.endDraw();
var cnt : int = tamas.length;
for (i = freep; i >= 0; i--) {
tama = tamas[i];
if (!tama.drop) {
for (var j : int = 0; j < cnt; j++) {
if (j != i) {
tama2 = tamas[j];
var d : Number = dist(tama, tama2);
var rr : int = tama.r + tama2.r;
if ((d < rr) && (!tama2.drop)) {
if (computeUnitVector(tama2.x, tama2.y, tama.x, tama.y, temppos)) {
var ox : Number = 0;
var oy : Number = 0;
tama2.x = tama.x + rr * temppos.x;
tama2.y = tama.y + rr * temppos.y;
ox = tama2.dx-(d-rr) * temppos.x;
if (tama2.minx && (tama2.x < tama2.r)) {
ox = 0;// -tama2.x;
tama2.x = tama2.r;
} else if (tama2.maxx && (tama2.x > stage.stageWidth - tama2.r)) {
ox = 0;// -tama2.x - (stage.stageWidth - tama2.r * 2);
tama2.x = stage.stageWidth - tama2.r;
}
oy = tama2.dy-(d-rr) * temppos.y;
if (tama2.miny && (tama2.y < tama2.r)) {
oy = 0;// -tama2.y;
tama2.y = tama2.r;
} else if (tama2.maxy && (tama2.y > stage.stageHeight - tama2.r)) {
oy = 0;// -tama2.y - (stage.stageHeight - tama2.r * 2);
tama2.y = stage.stageHeight - tama2.r;
}
tama.dx += (d - rr) * temppos.x;
tama.dy += (d - rr) * temppos.y;
tama2.dx = ox;
tama2.dy = oy;
//tama.x += ox;
//tama.y += oy;
}
}
}
}
}
}
for (i = freep; i >= 0; i--) {
tama = tamas[i];
temppos.x = tama.x - tama.r/2;
temppos.y = tama.y - tama.r/2;
back.bitmapData.copyPixels(tama.image.shadowBmp, backRect, temppos, tama.image.shadowBmp, null, true);
}
displacement.fillRect(displacement.rect, 0xff008080);
for (i = freep; i >= 0; i--) {
tama = tamas[i];
temppos.x = tama.x-tama.r ;
temppos.y = tama.y-tama.r ;
displacement.copyPixels(tama.image.refractionBmp, tama.image.refractionBmp.rect, temppos, null, null, true);
// back.bitmapData.copyPixels(sphere.layerBmp, sphere.layerBmp.rect, temppos, null, null, true);
}
//back.bitmapData.copyPixels(displacement, displacement.rect, new Point(0, 0));
back.bitmapData.applyFilter(back.bitmapData, back.bitmapData.rect, zeroPoint, displaceFilter);
for (i = freep; i >= 0; i--) {
tama = tamas[i];
temppos.x = tama.x-tama.r;
temppos.y = tama.y-tama.r;
back.bitmapData.copyPixels(tama.image.layerBmp, tama.image.layerBmp.rect, temppos, null, null, true);
}
if (addflg) {
var newr : int = randomSizeMode ? Math.random() * 40 + 24 : 32;
var newtama : Tama = newItem(stage.mouseX, stage.mouseY, 0, 0, newr, back);
newtama.image.rl.r = Math.random();
newtama.image.rl.g = Math.random();
newtama.image.rl.b = Math.random();
newtama.image.tcol.r = Math.random();
newtama.image.tcol.g = Math.random();
newtama.image.tcol.b = Math.random();
newtama.image.render(newr, newr, true);
}
mouseClicked = false;
}
private function dist(a : Tama, b : Tama): Number
{
return Math.sqrt((a.x - b.x)*(a.x - b.x) + (a.y - b.y)*(a.y - b.y));
}
public function computeUnitVector(x0 : Number, y0 : Number, x1 : Number, y1 : Number, /*out*/ u : Point) : Boolean
{
var len : Number = Math.sqrt( (y0 - y1) * (y0 - y1) + (x0 - x1) * (x0 - x1) );
if (len > 0) {
u.x = (x0 - x1) / len;
u.y = (y0 - y1) / len;
return true;
} else return false;
}
public function dotProduct(x0 : Number, y0 : Number, x1 : Number, y1 : Number) : Number
{
return x0 * x1 + y0 * y1;
}
public function crossProductZ(x0 : Number, y0 : Number, x1 : Number, y1 : Number) : Number
{
return x0 * y1 - y0 * x1;
}
}
}
import flash.display.Bitmap;
import flash.display.BlendMode;
import flash.display.Graphics;
import flash.display.Shape;
import flash.display.Sprite;
import flash.filters.BlurFilter;
import frocessing.core.F5BitmapData2D;
class Tama
{
public var x : Number;
public var y : Number;
public var r : Number;
public var dx : Number;
public var dy : Number;
public var minx : Boolean;
public var maxx : Boolean;
public var miny : Boolean;
public var maxy : Boolean;
public var index : int;
public var visible : Boolean = false;
public var drop : Boolean;
public var dropstate : int;
public var image : SphereRenderImage;
public function Tama(width : int, height : int, back : BitmapData)
{
regenerate(width, height, back);
}
public function regenerate(width : int, height : int, back : BitmapData) : void
{
image = new SphereRenderImage(width, height, back);
}
}
class Point3D
{
public var x : Number;
public var y : Number;
public var z : Number;
}
class Rgb
{
public var a : Number;
public var r : Number;
public var g : Number;
public var b : Number;
public function color(col : uint) : Rgb
{
a = (col >> 24) / 255;
r = ((col >> 16) & 0xff) / 255;
g = ((col >> 8) & 0xff) / 255;
b = ((col >> 0) & 0xff) / 255;
return this;
}
public static function pack32(r : Number, g : Number, b : Number, a : Number) : uint
{
return (Math.min(255, a * 255) << 24) | (Math.min(255, r * 255) << 16) | (Math.min(255, g * 255) << 8) | Math.min(255, b * 255);
}
public function color32() : uint
{
return pack32(r, g, b, a);
}
}
class SphereShadow
{
private var blur : BlurFilter = new BlurFilter(4, 4, 1);
public var shadowBmpData : BitmapData;
private var shadow : F5BitmapData2D;
public var shadowAlpha : BitmapData;
private var zeroPoint : Point = new Point(0, 0);
private var shape : Shape;
public function SphereShadow(width : int, height : int)
{
shadowBmpData = new BitmapData(width, height, true, 0);
}
public function render(col : uint) : void
{
var sp1:Sprite = new Sprite();
var g:Graphics = sp1.graphics;
g.beginFill(0x000000, .6);
g.drawCircle(shadowBmpData.width / 2, shadowBmpData.height / 2, shadowBmpData.width / 2);
g.endFill();
g.beginFill(col, .4);
g.drawCircle(shadowBmpData.width*6 / 10, shadowBmpData.height*6 / 10, shadowBmpData.width / 8);
g.endFill();
shadowBmpData.draw(sp1);
shadowBmpData.applyFilter(shadowBmpData, shadowBmpData.rect, zeroPoint, blur);
}
}
import flash.display.BitmapData;
import flash.filters.DisplacementMapFilter;
import flash.geom.Point;
class SphereRenderImage
{
private const PI : Number = 3.141592;
private var width : int;
private var height : int;
private var radius : int;
public var layerBmp : BitmapData;
public var refractionBmp : BitmapData;
public var shadowBmp : BitmapData;
private var backgroundBmp : BitmapData;
private var diffuseBmp : BitmapData = null; // not use yet
private var temppos : Point3D = new Point3D();
private var dcol : Rgb = new Rgb();
private var shadow : SphereShadow;
public var refraction : Number = 1.0;
public var shininess : Number = 1.0;
public var tcol : Rgb = new Rgb();
public var spec : Rgb = new Rgb();
public var amb : Rgb = new Rgb();
public var rl : Rgb = new Rgb();
public var bk : Rgb = new Rgb();
public function SphereRenderImage(width : int, height : int, background : BitmapData) : void
{
this.width = width;
this.height = height;
this.radius = Math.min(width, height) / 2;
backgroundBmp = background;
layerBmp = new BitmapData(width, height, true, 0);
refractionBmp = new BitmapData(width, height, true, 0);
shadow = new SphereShadow(width, height);
shadowBmp = shadow.shadowBmpData;
spec.a = 1.0;
spec.r = 1.0;
spec.g = 1.0;
spec.b = 1.0;
amb.a = .0;
amb.r = .0;
amb.g = .0;
amb.b = .0;
}
private function norm(x : Number, y : Number, z : Number ,/*out*/ o : Point3D) : void
{
var len : Number = Math.sqrt( x*x + y*y + z*z );
o.x = x / len;
o.y = y / len;
o.z = z / len;
}
public function render(posx : int, posy : int, use_displace : Boolean = false) : void
{
shadow.render(rl.color32());
if (use_displace) refractionBmp.lock();
layerBmp.lock();
var cx : int = Math.min( width, height )/2;
var cy : int = Math.min( width, height )/2;
var rr : Number = radius;
var tr : int = rr >> 0;
var tr_xscale : Number = backgroundBmp.width / width;
var tr_yscale : Number = backgroundBmp.height / height;
for (var i : int = 0; i < tr * 2 ; i++) {
var rad1 : Number = Math.acos( ((tr-i)/tr) );
var spanr : Number = Math.sin( rad1 ) * rr - 1;
var y : Number = (tr-i);
for (var j : int = 0; j < tr * 4 -1; j++) {
var rad2 : Number = (j / rr)*PI/4;
var x : Number = Math.cos( rad2 ) * spanr;
var z : Number = Math.sin( rad2 ) * spanr;
norm(0 - x, 0 - y, rr*10 - z, temppos);
var ex : Number = temppos.x;
var ey : Number = temppos.y;
var ez : Number = temppos.z;
norm(rr*10 - x,rr*10 - y,rr*10 - z, temppos);
var lx : Number = temppos.x;
var ly : Number = temppos.y;
var lz : Number = temppos.z;
norm(ex+lx,ex+lx,ex+lx, temppos);
var hx : Number = temppos.x;
var hy : Number = temppos.y;
var hz : Number = temppos.z;
norm(x,y,z, temppos);
var nx : Number = temppos.x;
var ny : Number = temppos.y;
var nz : Number = temppos.z;
var dr : Number = 0, dg : Number = 0 , db : Number = 0;
if (diffuseBmp) {
col = diffuseBmp.getPixel32( diffuseBmp.width * ((rad2 / PI / 1 )) , diffuseBmp.height * (rad1 / PI / 1 ));
dcol.color(col);
dcol.r = dcol.r * dr;
dcol.g = dcol.g * dg;
dcol.b = dcol.b * db;
} else {
dcol.r = dr;
dcol.g = dg;
dcol.b = db;
}
var tx : int = x;
var px : int = (cx - tr) + tr - tx;
var py : int = (cy - tr + i);
if ((tcol.r != 0.0) || (tcol.g != 0.0) || (tcol.b != 0.0)) {
var cosa : Number = nx * 0 + ny * 0 + nz * 1;
var tr_u : Number, tr_v : Number;
if (cosa != 0) tr_u = nx / cosa; else tr_u = 0;
if (cosa != 0) tr_v = ny / cosa; else tr_v = 0;
var tr_x : int = (backgroundBmp.width + ((cx+posx+tr_u*tr*refraction)*tr_xscale) >> 0) % backgroundBmp.width;
if (tr_x < 0) tr_x = 0;
var tr_y : int = (backgroundBmp.height + ((cy+posy+tr_v*tr*refraction)*tr_yscale) >> 0) % backgroundBmp.height;
if (tr_y < 0) tr_y = 0;
cosa = 1-cosa;
var reflection : Number = (1-0.2)*cosa;//0.0 + (1-0.0)*cosa*cosa*cosa*cosa*cosa; // fresnel
// pseudo refraction! not real! but look like
if (use_displace) {
var tu : int = Math.max(Math.min(255, (tr_u*tr*refraction*tr_xscale/backgroundBmp.width)*128 + 128), 0);
var tv : int = Math.max(Math.min(255, (tr_v*tr*refraction*tr_yscale/backgroundBmp.height)*128 + 128), 0);
refractionBmp.setPixel32(px, py, 0xff000000 | (tu << 8) | (tv));
dcol.r = (1-rl.r*reflection)*(dcol.r*(1-tcol.r)) + rl.r*reflection*1;
dcol.g = (1-rl.g*reflection)*(dcol.g*(1-tcol.g)) + rl.g*reflection*1;
dcol.b = (1-rl.b*reflection)*(dcol.b*(1-tcol.b)) + rl.b*reflection*1;
} else {
if (tr_y < backgroundBmp.height) {
col = backgroundBmp.getPixel32(tr_x, tr_y);
bk.color(col);
dcol.r = (1-rl.r*reflection)*(dcol.r*(1-tcol.r)+bk.r*tcol.r) + rl.r*reflection*1;
dcol.g = (1-rl.g*reflection)*(dcol.g*(1-tcol.g)+bk.g*tcol.g) + rl.g*reflection*1;
dcol.b = (1-rl.b*reflection)*(dcol.b*(1-tcol.b)+bk.b*tcol.b) + rl.b*reflection*1;
} else {
dcol.r = tcol.r;
dcol.g = tcol.g;
dcol.b = tcol.b;
}
}
}
var dot1 : Number;
if ((tcol.r != 0.0) || (tcol.g != 0.0) || (tcol.b != 0.0)) {
dot1 = Math.max(1, Math.abs(lx*nx + ly*ny + lz*nz));
} else {
dot1 = Math.max(0, lx*nx + ly*ny + lz*nz);
}
var kpow : Number = (shininess*128);
var dot2 : Number = Math.pow(Math.max(0, hx*nx + hy*ny + hz*nz), kpow);
var col : uint;
if (use_displace) {
col = Rgb.pack32(dot2*spec.r + dot1 * dcol.r + amb.r, dot2*spec.g + dot1 * dcol.g + amb.g, dot2*spec.b + dot1 * dcol.b + amb.b, dot2*spec.a+dot1*Math.max(dcol.r, dcol.g, dcol.b) );
} else {
col = Rgb.pack32(dot2 * spec.r + dot1 * dcol.r + amb.r, dot2 * spec.g + dot1 * dcol.g + amb.g, dot2 * spec.b + dot1 * dcol.b + amb.b, 1 );
}
if ((px >= 0) && (px < width) && (py >= 0) && (py < height)) {
layerBmp.setPixel32(px, py, col);
}
}
}
layerBmp.unlock();
if (use_displace) refractionBmp.unlock();
}
}