diff --git a/src/Sky.hx b/src/Sky.hx
index 3434a145..567d5c9d 100644
--- a/src/Sky.hx
+++ b/src/Sky.hx
@@ -35,6 +35,8 @@ class Sky extends Object {
 			var lines = dmlFile.split('\n').map(x -> x.toLowerCase());
 			var skyboxImages = [];
 
+			// 5: bottom, to be rotated/flipped
+			// 0: front
 			var skyboxIndices = [3, 1, 2, 0, 4, 5];
 
 			for (i in 0...6) {
@@ -56,7 +58,16 @@ class Sky extends Object {
 					maxwidth = texture.width;
 			}
 
-			Util.rotateImage(skyboxImages[0], Math.PI / 2);
+			Util.flipImage(skyboxImages[0], true, false);
+			Util.flipImage(skyboxImages[4], true, false);
+			Util.rotateImage(skyboxImages[5], Math.PI);
+			Util.flipImage(skyboxImages[5], true, false);
+			Util.rotateImage(skyboxImages[1], -Math.PI / 2);
+			Util.flipImage(skyboxImages[1], true, false);
+			Util.rotateImage(skyboxImages[2], Math.PI);
+			Util.flipImage(skyboxImages[2], true, false);
+			Util.rotateImage(skyboxImages[3], Math.PI / 2);
+			Util.flipImage(skyboxImages[3], true, false);
 
 			var cubemaptexture = new Texture(maxheight, maxwidth, [Cube]);
 			for (i in 0...6) {
diff --git a/src/Util.hx b/src/Util.hx
index d68fc1f5..d34c9a15 100644
--- a/src/Util.hx
+++ b/src/Util.hx
@@ -1,5 +1,7 @@
 package src;
 
+import h2d.Tile;
+import h3d.mat.Texture;
 import hxd.BitmapData;
 import h3d.Vector;
 
@@ -35,11 +37,44 @@ class Util {
 	}
 
 	public static function rotateImage(bitmap:BitmapData, angle:Float) {
-		// var bmp = new Bitmap(Tile.fromBitmap(bitmap));
-		// bmp.rotate(angle);
-		// var output = new Texture(bitmap.width, bitmap.height, [TextureFlags.Target]);
-		// bmp.drawTo(output);
-		// var pixels = output.capturePixels();
-		// bitmap.setPixels(pixels);
+		var curpixels = bitmap.getPixels().clone();
+		bitmap.lock();
+		if (angle == Math.PI / 2)
+			for (x in 0...curpixels.width) {
+				for (y in 0...curpixels.height) {
+					bitmap.setPixel(x, y, curpixels.getPixel(y, curpixels.height - x - 1));
+				}
+			}
+		if (angle == -Math.PI / 2)
+			for (x in 0...curpixels.width) {
+				for (y in 0...curpixels.height) {
+					bitmap.setPixel(x, y, curpixels.getPixel(curpixels.width - y - 1, x));
+				}
+			}
+		if (angle == Math.PI)
+			for (x in 0...curpixels.width) {
+				for (y in 0...curpixels.height) {
+					bitmap.setPixel(x, y, curpixels.getPixel(curpixels.width - x - 1, curpixels.height - y - 1));
+				}
+			}
+		bitmap.unlock();
+	}
+
+	public static function flipImage(bitmap:BitmapData, hflip:Bool, vflip:Bool) {
+		var curpixels = bitmap.getPixels().clone();
+		bitmap.lock();
+		if (hflip)
+			for (x in 0...curpixels.width) {
+				for (y in 0...curpixels.height) {
+					bitmap.setPixel(x, y, curpixels.getPixel(curpixels.height - x - 1, y));
+				}
+			}
+		if (vflip)
+			for (x in 0...curpixels.width) {
+				for (y in 0...curpixels.height) {
+					bitmap.setPixel(x, y, curpixels.getPixel(x, curpixels.width - y - 1));
+				}
+			}
+		bitmap.unlock();
 	}
 }