ComfyUI-Ethanfel-Prompt-Builder/docs/krea2-prompt-guide.md

Krea2 Prompt Guide

This document records prompt rules discovered from actual SxCP generator outputs tested in Krea2. It is not a generic prompt cookbook. Add a rule only when an A/B image comparison shows that the wording improves or breaks Krea2 behavior.

Core Rule

Krea2 responds best when the prompt gives one clear visual hierarchy:

1. subject/cast descriptor,
2. action or pose,
3. clothing state,
4. location,
5. camera/layout,
6. expression,
7. composition/crop,
8. style.

Avoid letting two sections describe incompatible camera or framing intents.

Prompt Output Contract

• sxcp_eval_out must contain only the prompt being tested.
• Analysis, scoring, and generator notes belong in chat or sxcp_eval_log.
• Keep one experiment variable per cycle when possible.
• Lock seed, character, location, and camera when testing wording changes.

Camera And Composition

Orbit / Multiangle Camera

When Krea2 receives an orbit or multiangle camera, avoid selfie-specific wording unless the intended camera is actually a handheld or mirror selfie.

Works better:

• lifestyle portrait frame
• creator portrait frame
• outfit-check pose
• wide environmental coworking camera layout
• camera placed several meters away
• full seated body from head to knees
• room depth surrounding the subject

Conflicting wording:

• selfie frame
• phone selfie
• holding the phone
• creator-shot phone photo
• handheld camera realism

Observed result: selfie words pulled a back-right elevated wide shot into an arm-length selfie. Removing selfie terms made the image follow the rear-quarter view much better.

Wide Shots

Krea2 tends to keep attractive subjects large in frame. To get a real wide or environmental frame, be explicit about distance and visible environment.

Useful phrasing:

• camera placed several meters away across the desk aisle
• full seated body from head to knees remains visible
• nearby desk edge, laptop corner, repeated desk rows, and tall-window depth clearly readable
• wide environmental room framing

Avoid relying on wide shot alone.

Location Layout

Location-aware camera text works when it describes the room around the subject without stealing the foreground from the subject.

For coworking lounge:

• Keep warm desks, laptop tables, glass partition seams, repeated desk rows, plants, and tall windows.
• Mention foreground anchors only when the camera should actually see them.
• In POV, keep location anchors beside or behind the bodies, not in the lower foreground.

Clothing Continuity

When a softcore outfit is reused in a later branch, name what happens to actual outfit pieces instead of using generic fabric language.

Works better:

• denim shorts are pulled aside or removed below the hips
• button-down shirt tied at the waist and fitted bralette remain visible from the same outfit

Avoid generic fallback wording:

• fabric slipping off
• partly exposed
• outfit pushed aside where needed

Use generic wording only when no source outfit exists.

POV

In POV prompts, the visible subject should still be established first. The POV participant is the camera viewpoint, not a normal visible cast member.

Works better:

• visible subject descriptor first,
• then POV action,
• then foreground hands/body/clothing cues.

For POV clothing, describe only visible body/clothing fragments:

• foreground hands, hips, thighs, or lowered waistband
• foreground hands, forearms, sleeves, or torso edge

Avoid:

• full third-person Man A wears... phrasing for the POV participant,
• making the viewer the first subject before the visible character is established.

Style

Style should describe rendering, not camera mechanics.

Use style presets to choose between:

• natural photo,
• creator/social-media photo,
• documentary/direct-flash photo,
• cinematic realism,
• illustration/comic.

If a controlled camera is active, avoid style suffixes that imply a conflicting camera such as phone photo or handheld selfie.

Guide Update Format

When adding a new rule, include:

• observed prompt,
• observed image failure,
• edited prompt wording,
• image improvement or regression,
• generator path if known,
• final rule.