Enlarge glyph size more for \blur to avoid artefacts.

diff --git a/libass/ass_bitmap.c b/libass/ass_bitmap.c
index 15d583ac48fe6ece292494dc4ab7979cdc95d125..eac8223eff87636c9861abc86d5973956c379f7f 100644 (file)
--- a/libass/ass_bitmap.c
+++ b/libass/ass_bitmap.c
@@ -288,7 +288,7 @@ int glyph_to_bitmap(ass_synth_priv_t* priv_blur,
 {
        int bord = be ? (be/4+1) : 0;
        blur_radius *= 2;
-       bord = (blur_radius > 0.0) ? blur_radius : bord;
+       bord = (blur_radius > 0.0) ? blur_radius+1 : bord;
 
        assert(bm_g && bm_o && bm_s);