Interactive Rive mascots can react, think, talk, and connect to real AI, SaaS, web, and mobile products.
A lot of products have mascots.
They look great on landing pages.
Maybe they wave.
Maybe they blink.
Maybe there is a small looping animation.
And that's it.
But I think a product mascot can do much more.
What if your mascot actually knew what was happening inside your
product?
That's the idea I've been exploring with Mascot Engine.
I don't just want to animate characters.
I want to build interactive mascot systems that connect to real products.
Imagine you're building an AI app.
A user opens the app.
The mascot is idle.
The user sends a message.
The mascot starts thinking.
The AI begins responding.
The mascot switches to talking.
The task completes.
The mascot celebrates.
Something goes wrong?
The mascot reacts to the error.
The flow could look like this:
User Action
↓
Product State
↓
Runtime Input
↓
Rive State Machine
↓
Mascot Reaction
This isn't a video.
It isn't a GIF.
It isn't a pre-rendered animation playing randomly.
The product controls the mascot at runtime.
That's where things become interesting.
Well... not literally understand them 😄
The application still owns the logic.
But we can expose a small runtime contract from the Rive file.
For example:
emotion = 2
isTalking = true
lookX = 40
lookY = -10
celebrate = trigger
error = false
The developer controls these values from the application.
The Rive State Machine handles the character behavior.
The application controls what happened.
The mascot system controls how the character reacts.
I really like this separation.
Traditional animation tools are great for videos and motion design.
But product animation has different requirements.
The character needs to react to application events.
The animation may need runtime values.
Developers may need to control emotions.
An AI assistant may need lip sync.
A character's eyes may need to follow a pointer or touch position.
This is where Rive becomes interesting.
With Rive, I can build systems using:
Instead of delivering:
mascot-animation.mp4
I can deliver something closer to:
mascot.riv
State Machine: MascotState
Inputs:
- emotion
- isTalking
- lookX
- lookY
- celebrate
- error
Now the mascot is part of the product.
Not just decoration.
AI apps are one of my favorite use cases for this.
Most AI interfaces currently look similar.
You have an input, a send button, a indicator, and a response.
It works.
But sometimes the experience can feel a little lifeless.
Now imagine an AI character.
When you're speaking, it listens.
When the model is processing, it thinks.
When TTS starts, it talks.
Its mouth reacts using viseme-based lip sync.
Its eyes can move using runtime gaze values.
The product can change its emotion based on the current experience.
Listening
↓
Thinking
↓
Answering
↓
Talking
↓
Idle
The important part is that these states aren't random.
They can be connected to actual product events.
This is another area I've been exploring.
If an AI assistant uses Text-to-Speech, the mascot shouldn't just play a
generic talking loop.
We can create different mouth shapes.
For example:
REST
A
E
I
O
U
MBP
FV
L
The application or TTS pipeline provides the current viseme value.
The mascot reacts.
TTS Audio
↓
Viseme Data
↓
Runtime Value
↓
Rive Mouth Shape
The result is a character that feels more connected to the voice.
For AI tutors, assistants, learning apps, and companion products, this
can completely change the personality of the experience.
Pointer tracking is fun on the web.
The mascot can follow your mouse.
But what happens on mobile?
There is no mouse cursor.
That's why I prefer exposing runtime gaze values.
lookX = -100 to 100
lookY = -100 to 100
A Flutter, React Native, React, or web application can control these
values.
The mascot can look at touch positions, UI elements, notifications,
buttons, user interactions, or camera-based face tracking.
The Rive animation handles the visual movement.
The application provides the data.
Working with developers taught me something important.
A beautiful animation can still be difficult to integrate.
Imagine receiving a Rive file with inputs like:
Input 1
Bool 2
Trigger
New Number
😅
Now the developer has to guess everything.
I try to think about the runtime structure while building the mascot.
Inputs should be predictable.
emotion
ageMode
isTalking
lookX
lookY
Celebrating
Error
The developer shouldn't need to reverse-engineer the animation.
That's also why I've started building Mascot Engine Developer Docs.
The goal is to create a practical integration reference for Web,
JavaScript, React, Flutter, React Native, State Machines, Data Binding,
pointer interactions, TTS, viseme lip sync, and runtime inputs.
Because delivering the .riv
file is only part of the job.
The mascot needs to work inside the real product.
Maybe you're using AI coding tools.
Maybe you're building a SaaS alone.
Maybe you're an indie hacker.
Maybe you're shipping a strange app at 3 AM because the idea wouldn't
leave your head 😄
That's fine.
If you can explain your product flow, I can help think about the mascot
behavior.
User opens app
→ Mascot wakes up
User starts typing
→ Mascot watches the input
AI is processing
→ Mascot thinks
AI starts TTS
→ Mascot talks
Task completed
→ Mascot celebrates
API error
→ Mascot reacts
You don't need to know everything about Rive State Machines.
Tell me what happens inside your product.
We can turn those events into character behavior.
I don't think every product needs a mascot.
The mascot should have a purpose.
Maybe it guides the user.
Maybe it represents the AI.
Maybe it reacts to progress.
Maybe it makes an educational product friendlier.
Maybe it gives a SaaS product a recognizable personality.
The question I like asking is:
What does the mascot know about the current product state?
If the answer is nothing, it's probably just decoration.
If the product can control the character, that's where we can build
something interesting.
I'm currently opening a limited number of project slots for AI, SaaS,
web, and mobile products.
.riv
deliveryBuilt for real products using Rive.
Send me your product.
I'll take a look.
If I see an interesting way an interactive mascot could fit into the
experience, I'll tell you.
No complicated animation brief needed.
You can simply send me:
Product link:
What the product does:
Framework:
What the mascot should react to:
Visit:
I'm Praneeth Kawya Thathsara.
I'm a Rive animator and interactive product designer building Mascot Engine.
I don't just want to make mascots move.
I want to connect them to products.
Make them react.
Make them think.
Make them talk.
Make the product feel a little more alive. 👀
If you're building something interesting, feel free to reach out.
Vibe coders welcome too 😄⚙️