Index: C:/Users/jfs/Dev/Aegisub/vsfilter/subtitles/Rasterizer.h
===================================================================
--- C:/Users/jfs/Dev/Aegisub/vsfilter/subtitles/Rasterizer.h	(revision 2278)
+++ C:/Users/jfs/Dev/Aegisub/vsfilter/subtitles/Rasterizer.h	(revision 2279)
@@ -85,7 +85,7 @@
 	bool ScanConvert();
 	bool CreateWidenedRegion(int borderX, int borderY);
 	void DeleteOutlines();
-	bool Rasterize(int xsub, int ysub, bool fBlur);
+	bool Rasterize(int xsub, int ysub, int fBlur);
 	CRect Draw(SubPicDesc& spd, CRect& clipRect, byte* pAlphaMask, int xsub, int ysub, const long* switchpts, bool fBody, bool fBorder);
 };
 
Index: C:/Users/jfs/Dev/Aegisub/vsfilter/subtitles/RTS.cpp
===================================================================
--- C:/Users/jfs/Dev/Aegisub/vsfilter/subtitles/RTS.cpp	(revision 2278)
+++ C:/Users/jfs/Dev/Aegisub/vsfilter/subtitles/RTS.cpp	(revision 2279)
@@ -1550,9 +1550,9 @@
 		}
 		else if(cmd == L"be")
 		{
-			int n = wcstol(p, NULL, 10);
+			int n = (int)(CalcAnimation(wcstol(p, NULL, 10), style.fBlur, fAnimate)+0.5);
 			style.fBlur = !p.IsEmpty()
-				? (n == 0 ? false : n == 1 ? true : org.fBlur)
+				? n
 				: org.fBlur;
 		}
 		else if(cmd == L"b")
Index: C:/Users/jfs/Dev/Aegisub/vsfilter/subtitles/STS.cpp
===================================================================
--- C:/Users/jfs/Dev/Aegisub/vsfilter/subtitles/STS.cpp	(revision 2278)
+++ C:/Users/jfs/Dev/Aegisub/vsfilter/subtitles/STS.cpp	(revision 2279)
@@ -1578,7 +1578,7 @@
 				style->fItalic = !!GetInt(buff);
 				style->fUnderline = !!GetInt(buff);
 				style->fStrikeOut = !!GetInt(buff);
-				style->fBlur = !!GetInt(buff);
+				style->fBlur = GetInt(buff) ? 1 : 0;
 				style->fontScaleX = GetFloat(buff);
 				style->fontScaleY = GetFloat(buff);
 				style->fontSpacing = GetFloat(buff);
@@ -2906,7 +2906,7 @@
 	fItalic = false;
 	fUnderline = false;
 	fStrikeOut = false;
-	fBlur = false;
+	fBlur = 0;
 	fontShiftX = fontShiftY = fontAngleZ = fontAngleX = fontAngleY = 0;
 	relativeTo = 2;
 }
@@ -3004,7 +3004,7 @@
 		s.colors[0], s.colors[1], s.colors[2], s.colors[3], s.alpha[0], s.alpha[1], s.alpha[2], s.alpha[3],
 		s.charSet,
 		s.fontName, s.fontSize, s.fontScaleX, s.fontScaleY, s.fontSpacing, s.fontWeight,
-		(int)s.fItalic, (int)s.fUnderline, (int)s.fStrikeOut, (int)s.fBlur,
+		(int)s.fItalic, (int)s.fUnderline, (int)s.fStrikeOut, s.fBlur,
 		s.fontAngleZ, s.fontAngleX, s.fontAngleY,
 		s.relativeTo);
 
@@ -3027,7 +3027,7 @@
 		s.fontName = WToT(GetStr(str)); s.fontSize = GetFloat(str); 
 		s.fontScaleX = GetFloat(str); s.fontScaleY = GetFloat(str);
 		s.fontSpacing = GetFloat(str); s.fontWeight = GetInt(str);
-		s.fItalic = !!GetInt(str); s.fUnderline = !!GetInt(str); s.fStrikeOut = !!GetInt(str); s.fBlur = !!GetInt(str);
+		s.fItalic = !!GetInt(str); s.fUnderline = !!GetInt(str); s.fStrikeOut = !!GetInt(str); s.fBlur = GetInt(str);
 		s.fontAngleZ = GetFloat(str); s.fontAngleX = GetFloat(str); s.fontAngleY = GetFloat(str);
 		s.relativeTo = GetInt(str);
 	}
Index: C:/Users/jfs/Dev/Aegisub/vsfilter/subtitles/STS.h
===================================================================
--- C:/Users/jfs/Dev/Aegisub/vsfilter/subtitles/STS.h	(revision 2278)
+++ C:/Users/jfs/Dev/Aegisub/vsfilter/subtitles/STS.h	(revision 2279)
@@ -49,7 +49,7 @@
 	bool	fItalic;
 	bool	fUnderline;
 	bool	fStrikeOut;
-	bool	fBlur;
+	int		fBlur;
 	double	fontAngleZ, fontAngleX, fontAngleY;
 	double	fontShiftX, fontShiftY;
 	int		relativeTo; // 0: window, 1: video, 2: undefined (~window)
Index: C:/Users/jfs/Dev/Aegisub/vsfilter/subtitles/Rasterizer.cpp
===================================================================
--- C:/Users/jfs/Dev/Aegisub/vsfilter/subtitles/Rasterizer.cpp	(revision 2278)
+++ C:/Users/jfs/Dev/Aegisub/vsfilter/subtitles/Rasterizer.cpp	(revision 2279)
@@ -679,7 +679,7 @@
 	mOutline.clear();
 }
 
-bool Rasterizer::Rasterize(int xsub, int ysub, bool fBlur)
+bool Rasterizer::Rasterize(int xsub, int ysub, int fBlur)
 {
 	_TrashOverlay();
 
@@ -700,16 +700,17 @@
 
 	mWideBorder = (mWideBorder+7)&~7;
 
-	if(!mWideOutline.empty())
+	if(!mWideOutline.empty() || fBlur)
 	{
-		width += 2*mWideBorder;
-		height += 2*mWideBorder;
+		// Expand the buffer a bit when we're blurring, since that can also widen the borders a bit
+		width += 2*mWideBorder + (fBlur ? 16 : 0);
+		height += 2*mWideBorder + (fBlur ? 16 : 0);
 
-		xsub += mWideBorder;
-		ysub += mWideBorder;
+		xsub += mWideBorder + (fBlur ? 8 : 0);
+		ysub += mWideBorder + (fBlur ? 8 : 0);
 
-		mOffsetX -= mWideBorder;
-		mOffsetY -= mWideBorder;
+		mOffsetX -= mWideBorder + (fBlur ? 8 : 0);
+		mOffsetY -= mWideBorder + (fBlur ? 8 : 0);
 	}
 
 	mOverlayWidth = ((width+7)>>3) + 1;
@@ -760,32 +761,35 @@
 
 	// If we're blurring, do a 3x3 box blur
 	// Can't do it on subpictures smaller than 3x3 pixels
-	if(fBlur && mOverlayWidth >= 3 && mOverlayHeight >= 3)
+	for (int pass = 0; pass < fBlur; pass++)
 	{
-		int pitch = mOverlayWidth*2;
+		if(mOverlayWidth >= 3 && mOverlayHeight >= 3)
+		{
+			int pitch = mOverlayWidth*2;
 
-		byte* tmp = new byte[pitch*mOverlayHeight];
-		if(!tmp) return(false);
+			byte* tmp = new byte[pitch*mOverlayHeight];
+			if(!tmp) return(false);
 
-		memcpy(tmp, mpOverlayBuffer, pitch*mOverlayHeight);
+			memcpy(tmp, mpOverlayBuffer, pitch*mOverlayHeight);
 
-		int border = !mWideOutline.empty() ? 1 : 0;
+			int border = !mWideOutline.empty() ? 1 : 0;
 
-		// This could be done in a separated way and win some speed
-		for(int j = 1; j < mOverlayHeight-1; j++)
-		{
-			byte* src = tmp + pitch*j + 2 + border;
-			byte* dst = mpOverlayBuffer + pitch*j + 2 + border;
+			// This could be done in a separated way and win some speed
+			for(int j = 1; j < mOverlayHeight-1; j++)
+			{
+				byte* src = tmp + pitch*j + 2 + border;
+				byte* dst = mpOverlayBuffer + pitch*j + 2 + border;
 
-			for(int i = 1; i < mOverlayWidth-1; i++, src+=2, dst+=2)
-			{
-				*dst = (src[-2-pitch] + (src[-pitch]<<1) + src[+2-pitch]
-					+ (src[-2]<<1) + (src[0]<<2) + (src[+2]<<1)
-					+ src[-2+pitch] + (src[+pitch]<<1) + src[+2+pitch]) >> 4;
+				for(int i = 1; i < mOverlayWidth-1; i++, src+=2, dst+=2)
+				{
+					*dst = (src[-2-pitch] + (src[-pitch]<<1) + src[+2-pitch]
+						+ (src[-2]<<1) + (src[0]<<2) + (src[+2]<<1)
+						+ src[-2+pitch] + (src[+pitch]<<1) + src[+2+pitch]) >> 4;
+				}
 			}
+
+			delete [] tmp;
 		}
-
-		delete [] tmp;
 	}
 
 	return true;