fix missing bottom surface in viewer (#1899)

* Update Korean translation

* 1. Fix blank button text after translation
2. Fix some mistranslated korean

* -fix bottom surface in gcode viewer
-update korean translation

localization/i18n/ko/OrcaSlicer_ko.po

@@ -8,7 +8,7 @@ msgstr ""
 "Project-Id-Version: Orca Slicer\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2023-08-22 19:19+0800\n"
-"PO-Revision-Date: 2023-08-21 19:07+0900\n"
+"PO-Revision-Date: 2023-08-23 15:56+0900\n"
 "Last-Translator: Hotsolidinfill\n"
 "Language-Team: \n"
 "Language: ko_KR\n"
@@ -4591,7 +4591,7 @@ msgid "Login Region"
 msgstr "로그인 지역"
 
 msgid "Stealth Mode"
-msgstr ""
+msgstr "스텔스 모드"
 
 msgid "Metric"
 msgstr "미터법"
@@ -5251,8 +5251,8 @@ msgstr ""
 msgid ""
 "When recording timelapse without toolhead, it is recommended to add a "
 "\"Timelapse Wipe Tower\" \n"
-"by right-click the empty position of build plate and choose \"Add Primitive"
-"\"->\"Timelapse Wipe Tower\"."
+"by right-click the empty position of build plate and choose \"Add "
+"Primitive\"->\"Timelapse Wipe Tower\"."
 msgstr ""
 "툴헤드 없이 시간 경과를 기록할 경우 \"시간 경과 제거 타워\"를 추가하는 것이 "
 "좋습니다\n"
@@ -6282,7 +6282,7 @@ msgid "Gap infill"
 msgstr "틈(갭) 채우기"
 
 msgid "Skirt"
-msgstr ""
+msgstr "스커트"
 
 msgid "Support interface"
 msgstr "지지대 접점"
@@ -6510,16 +6510,21 @@ msgid ""
 "each layer to prevent loss of floating point accuracy. Add \"G92 E0\" to "
 "layer_gcode."
 msgstr ""
+"상대 압출 모드에서는 부동 소수점 정확도를 위해 각 레이어에서 압출기 위치를 재"
+"설정해야 합니다. layer_gcode에 \"G92 E0\"을 추가하세요."
 
 msgid ""
 "\"G92 E0\" was found in before_layer_gcode, which is incompatible with "
 "absolute extruder addressing."
 msgstr ""
+"\"G92 E0\"이 before_layer_gcode에서 발견되었으며 절대 압출 모드와 호환되지 않"
+"습니다."
 
 msgid ""
 "\"G92 E0\" was found in layer_gcode, which is incompatible with absolute "
 "extruder addressing."
 msgstr ""
+"\"G92 E0\"이 layer_gcode에서 발견되었으며 절대 압출 모드와 호환되지 않습니다."
 
 #, c-format, boost-format
 msgid "Plate %d: %s does not support filament %s"
@@ -6970,7 +6975,7 @@ msgid "Mouse ear"
 msgstr "생쥐 귀"
 
 msgid "Outer brim only"
-msgstr "외부 챙(브림)만"
+msgstr "외부 챙만"
 
 msgid "Inner brim only"
 msgstr "내부 챙만"
@@ -7722,10 +7727,10 @@ msgstr "팬 최대 속도 레이어"
 
 msgid ""
 "Fan speed will be ramped up linearly from zero at layer "
-"\"close_fan_the_first_x_layers\" to maximum at layer \"full_fan_speed_layer"
-"\". \"full_fan_speed_layer\" will be ignored if lower than "
-"\"close_fan_the_first_x_layers\", in which case the fan will be running at "
-"maximum allowed speed at layer \"close_fan_the_first_x_layers\" + 1."
+"\"close_fan_the_first_x_layers\" to maximum at layer "
+"\"full_fan_speed_layer\". \"full_fan_speed_layer\" will be ignored if lower "
+"than \"close_fan_the_first_x_layers\", in which case the fan will be running "
+"at maximum allowed speed at layer \"close_fan_the_first_x_layers\" + 1."
 msgstr ""
 "팬 속도는 \"close_fan_the_first_x_layers\" 의 0에서 \"full_fan_speed_layer\" "
 "의 최고 속도까지 선형적으로 증가합니다. \"full_fan_speed_layer\"가 "
@@ -10193,6 +10198,9 @@ msgstr ""
 "모델의 강도를 개선하기 위해 더 많은 벽 루프와 더 높은 드문 채우기 밀도를 사용"
 "할 수 있다는 것을 알고 있습니까?"
 
+#~ msgid "outer_only"
+#~ msgstr "외부 챙(브림)만"
+
 #~ msgid ""
 #~ "The configuration may be generated by a newer version of BambuStudio."
 #~ msgstr "이 설정은 최신 버전의 뱀부 스튜디오에서 생성되었을 수 있습니다."

src/libslic3r/Fill/Fill.cpp

@@ -183,6 +183,8 @@ std::vector<SurfaceFill> group_fills(const Layer &layer)
                 } else if (surface.is_solid()) {
                     if (surface.is_top()) {
                         params.extrusion_role = erTopSolidInfill;
+                    } else if (surface.is_bottom()) {
+                        params.extrusion_role = erBottomSurface;
                     } else {
                         params.extrusion_role = erSolidInfill;
                     }