Home / Guide / Dialogue Region

Setup guide

Draw the OCR box once, then stop thinking about it

The Dialogue Region is the part of the screen Kaption reads. Put it around the game text, size it for a long NPC line, and keep your translated overlay outside it.

Best sample: 3+ lines Shortcut: Ctrl+Shift+R Keep overlay outside
Jump to the steps Fix overlay warnings
Genshin Impact dialogue scene with Kaption's Polish translation above the game dialogue box; a green rectangle marks the user-drawn Dialogue Region around the text
green box = OCR region · top text = translated overlay · bottom text = game dialogue

Before you draw

Auto-detect first, draw manually if needed

Auto-detect regions

Use this from Kaption's Regions screen when the game UI is standard. If it finds the dialogue box cleanly, you are done.

Choose region

Use manual selection when auto-detect picks the wrong place, your UI scale is unusual, or you want to be precise.

Manual selection also opens from in-game with Ctrl + Shift + R. You can change the shortcut in Settings → Shortcuts.

Manual setup

Draw it like this

  1. 01

    Open a dialogue with a long NPC line

    Quest NPCs, Paimon monologues, and cutscene chatter are useful. Shopkeepers and one-liners are too small and make you draw a box that cuts off later dialogue.

  2. 02

    Press Ctrl + Shift + R

    The screen dims and a crosshair appears. Drag around the actual dialogue text, not the portrait, not the speaker name, and not the button hint.

  3. 03

    Leave room under the last line

    Add roughly 20-40 pixels below the text. That is where a fourth line lands when the game wraps a sentence late.

  4. 04

    Release the mouse and test one more line

    Kaption remembers the region per game. Redraw it only after a resolution change, UI-scale change, monitor change, or a game patch that moves the dialogue box.

What to include

Good region

  • Full width of the dialogue text
  • Enough height for a 3-line sample
  • Small vertical buffer, especially at the bottom
  • One monitor only

Bad region

  • Built around a one-liner
  • Includes the speaker portrait or name strip
  • Catches "Press SPACE" or other blinking UI hints
  • Overlaps your translated subtitle overlay
⚠

Most OCR problems are overlay overlap

If OCR flickers, repeats, or turns into nonsense, check this before changing anything else.

Incorrect layout — overlay inside the capture region Capture region Subtitle overlay ← inside
Wrong. OCR reads the translation, translates it again, then keeps looping.
Correct layout — overlay above the capture region Subtitle overlay Capture region
Right. Overlay above or below the region is fine. Inside the region is not.

How to fix it

  1. Press Ctrl + Shift + D to show your region. Green is fine; red means the overlay is inside it.
  2. Redraw with Ctrl + Shift + R. Cover only the game dialogue text.
  3. If the overlay keeps landing inside, open Settings → Display. Lower Max overlay height or increase vertical padding so the translated text sits farther away.

Kaption warns while you drag: the selection box turns red before you release the mouse. Use Reselect region from the warning dialog if it appears.

When translations still look wrong

The last line of a long dialogue is missing

The region is too short. Redraw it against a longer NPC line and add another 20 pixels below the text.

Translations flicker or keep repeating

The region is catching something that changes every frame, like a continue prompt, particles, or the translated overlay. Tighten the box around the dialogue text.

The speaker name appears in the translation

The top edge starts too high. Move it down so the region begins at the first line of dialogue, not at the name strip.

Still not sure? Screenshot the green box and ask in Discord. Someone can usually spot the problem from one image.

Ask on Discord