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Celestine's Portfolio

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I'm Celestine Valan

I'm
Celestine

Environment & Lighting Artist in Game Design | Graphics Programmer | Co-creator of Fractal Game Engine

Gothenburg, Sweden: ,

About Me

With a background in computer science and hands-on experience as Lead Environment Artist at Xivon Interactive, I have contributed to creating immersive digital worlds. My expertise lies in environment design, supported by skills in Game Engine Architecture, Object-Oriented Programming, and C++.

Currently pursuing a Master of Science in Computer Science at the University of Gothenburg, I aim to deepen my understanding of human-computer interaction through gaming and virtual environments. My work reflects a commitment to blending technical precision with creative expression to deliver engaging user experiences

Countries visited/worked in:

Drivenbycuriosityandadesiretokeepimproving,I’malwaysexploringnewtoolsandwaysofworking.WhetherI’mfocusedonsetdesign,lighting,orgraphicalprogramming,Icaredeeplyaboutcreatinghigh-qualityworkthat’smeaningfulforbothusersandbusinesses.

Work Experience

Lead environment artist

2021 - 2023

Xivon Interactive

At Xivon Interactive, I led the environment design team across 45 projects, focusing on creating high-quality 3D worlds for games and interactive media. I collaborated closely with art direction and technical teams to streamline workflows, improve visual quality, and introduce new tools like Blender to enhance creativity and production efficiency.

Promoted from Environment Artist to Lead Environment Artist, managing a team of 4-5.

Delivered 45 environment projects across diverse visual styles and settings.

Optimized production workflows, reducing project turnaround from 7 weeks to 3 weeks.

Integrated Blender into the studio pipeline, enhancing creative flexibility and lowering costs.

VR Development intern

2020

Meraki Studio

At Meraki, I worked on immersive VR and AR applications, contributing to both visual development and technical implementation. I collaborated with designers and engineers to build interactive experiences—from virtual office tours to product try-ons—using Unity, Vuforia, ARCore, and Meta Quest to deliver engaging and intuitive user interactions.

Collaborated with a dynamic team to design and develop virtual environments for immersive VR/AR applications.

Developed an immersive VR cooking show experience involving celebrity chef Vikas Khanna in collaboration with Sairam Sagiraju, a GRAMMY® Award winning music director.

Built wireframes, user flows, and prototypes to visualize design concepts

Engaged in coding and building interactive experiences that enhance user engagement.

Contributed to a startup environment at Meraki Studio, fostering creativity and technical skill development.

summer intern

2019

Institut Catholique d'Arts et Métiers

During my internship in Nantes, I collaborated with mechanical and electronics engineers on a renewable energy prototype, designing and 3D-printing turbine blades while integrating Arduino-based Bluetooth monitoring. I supported both design and technical development, ensuring our concepts were functional, testable, and grounded in real-world engineering practice.

Collaborated in an interdisciplinary team to design a wind turbine with a Bluetooth module.

Developed custom 3D printed blades using SOLIDWORKS, enhancing the turbine's efficiency.

Programmed Arduino for real-time data collection, enabling monitoring of parameters like voltage.

Gained hands-on experience in renewable energy technology and IoT applications.

Skills & Tools

Environmental Lighting

C++/C#/UE Blueprints

Set and Level Design

Graphics Programming

Texturing

Engine Design

International Experience

Framer

Figma

Substance Painter

Unreal Engine

Unity

Daz 3D

Blender

Languages

English

French

Swedish

Education & Certificates

University of Gothenburg / Chalmers

Masters in Science in Computer Science — 2026

California Institute of the Arts (CalArts)

Specialization in Game Design - The Arts & Concepts — 2020


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