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uianimation/README.md

Praneeth Kawya Thathsara

Freelance Rive Animator · Character Rigging · Interactive App Mascots

I design expressive, interactive characters that respond to real product states — onboarding, listening, thinking, speaking, success and failure.

Hire a Rive animator Explore Mascot Engine Send a project brief

What I build

🎭 App mascots

Onboarding companions, login interactions, progress feedback and expressive product reactions.

🦴 Rive character rigging

Production-ready rigs for reusable animation, State Machines and interactive behavior.

🤖 AI avatars

Speaking/listening states, viseme lip sync, audio-level responses and gaze controls.

🔌 Developer handoff

Runtime-ready .riv deliverables, named controls and integration notes for Web, Flutter and React Native.

Selected work

AI avatar starter

Bring-your-own-Rive playground with activity states, gaze controls and a documented input contract.

Open the live playground →

Character rigging showcase

A real interactive mascot with thinking, success, failure and authored animation studies.

Explore the showcase →

AI avatar viseme kit

TypeScript provider contracts, viseme mapping and a runtime adapter for LLM, TTS and lip-sync services.

Rive skill

Reusable guidance for the Rive Editor, runtime, State Machines, Data Binding and production handoff.

How I work

A good mascot is not only beautiful — it makes the product state easier to understand.

I start with the behaviors your product needs, define a clear interaction contract, then build the character, animation system and developer handoff around that contract.

A useful first brief includes: platform · character references · required states · voice/lip-sync needs · timeline · budget range

Read the project brief checklist →

Have a product that needs a little more personality?

Discuss your project on WhatsApp →

Website · Mascot Engine · LinkedIn · YouTube

Popular repositories Loading

  1. rive-skill rive-skill Public

    Production-ready Rive guidance for AI agents. covering the Editor, State Machines, Data Binding, scripting, runtimes, performance, accessibility, and handoff.

    PowerShell 6 2

  2. portfolio portfolio Public

    Rive animation portfolio of Praneeth Kawya Thathsara: interactive app mascots, character rigging, AI avatar resources and project briefs. Founder of Mascot Engine.

  3. rive-ai-avatar-viseme-kit rive-ai-avatar-viseme-kit Public

    Open-source TypeScript toolkit for connecting Rive AI avatars and mascots to LLM, TTS, and viseme lip-sync APIs.

    TypeScript

  4. rive-ai-avatar-starter rive-ai-avatar-starter Public

    Bring-your-own-Rive AI avatar starter: activity states, gaze, speaking controls, Data Binding and a documented developer handoff. By Mascot Engine.

    JavaScript

  5. rive-character-rigging-showcase rive-character-rigging-showcase Public

    Real interactive Rive mascot showcase by Praneeth Kawya Thathsara / Mascot Engine. Six animations, typed State Machine controls and a documented developer handoff.

    HTML

  6. uianimation uianimation Public

    Praneeth Kawya Thathsara — freelance Rive animator. Interactive app mascots, character rigging, AI avatars and developer handoff.