IGOR.MAKSIMOVIĆ
← Back to selected work
Case study 02 · Character development

Kaya — Consistent AI Persona

A reusable, photorealistic character system designed to keep Kaya recognizable across camera angles, expressions, poses, outfits and image-to-video shots.

Identity consistencyComfyUIMiniMax-H3Shot-by-shot QA
Kaya in a frame from the AI video development reel
One reusable personaCharacter objective
Multiple anglesIdentity coverage
Wardrobe controlVisual variations
Image to videoCurrent R&D
01 · Overview

Develop a character system, not a single hero image.

Kaya is a photorealistic AI persona developed as a reusable visual character. The goal is to preserve a recognizable identity as camera angle, expression, pose, wardrobe, lighting and environment change.

The work brings together character reference development and image-to-video testing, with a focus on visual continuity and practical usability across a growing set of shots.

02 · Core challenge

Keep identity stable while the conditions change.

Face and identity

Preserve facial features through front, three-quarter and profile views, expressions and motion.

Photorealism

Maintain believable skin, hair, eyes, facial proportions and anatomy.

Wardrobe changes

Change styling while keeping the same recognizable character and stable body proportions.

Video-ready references

Build reference images that support image-to-video generation and help reduce artifacts and continuity drift.

03 · Character reference system

Organized coverage for identity, expression and pose.

Identity views

The reference set covers front, three-quarter and profile angles, plus close-up beauty framing. These views give later generations a consistent identity baseline.

Expression and full-body coverage

Expression tests include neutral, soft smile, laughing, surprised, thoughtful and conversational looks. Full-body references are used to check proportions, pose, outfit fit, front / side / rear coverage and usefulness as video references.

04 · Wardrobe variations

Change the styling while preserving Kaya.

The wardrobe system tests Kaya across distinct roles, using clothing references together with identity references and controlled generation.

Cream tailored suit

Polished professional and lifestyle direction.

Charcoal fashion look

Editorial and premium styling.

Light gray athletic set

Wellness, fitness and casual UGC direction.

Red dress

Evening and lifestyle variation.

05 · Image-to-video development

Extending the same identity into motion.

The current R&D workflow uses ComfyUI and MiniMax-H3 to test short, shot-based video. Selected clips are development material used to evaluate identity retention, motion, continuity, product interaction, camera discipline and editorial usability.

Each shot is reviewed for face preservation, hand and arm motion, intentional camera behavior, wardrobe and environment continuity, and enough usable duration for editing. Skin tone and texture consistency remain part of the look-development focus.

Character reference→Shot reference→Generation→Review→Edit test→Continuity check

Kaya development reelImage-to-video R&D · identity, motion and shot continuity review

Tools & why it matters

A reusable visual identity that can move into production.

Tools: ComfyUI, MiniMax-H3, reference-driven image-to-video workflows, Adobe Premiere Pro and editorial / color review.

Kaya demonstrates a practical approach to building a consistent AI persona: establish an identity, test its limits, develop controlled wardrobe changes and extend the same character into motion. Kaya was also applied in the Presretač client campaign.