Júlia Serra Trujillo

Ray casting Audio: Dynamic audio techniques in video games
Developer, Audio Programmer, General Programmer, Sound Designer, Level Designer, UI Designer, QA.

This project intends to enhance the player’s immersion by implementing ray casting systems to make audio feel more immersive and dynamic for users, without impacting the performance of the game or the editor, to enhance the systems in the Unity Engine following the approach of other AAA companies. It focus on systems to average the distances between the player and the other elements in the scene and calculating the occlusion of sound emitters by taking into account the materials of the objects around the player, using optimized systems implemented in Unity to be used in the future as tools by other developers

TO BE RELEASED
Programmer, QA.

Song of the Peacock is a graphic adventure where your protagonist, heir to a kingdom in crisis, embarks on a journey to request the help of your god spirit, Xoria.

C++ Game created in C++ Custom Game Engine
Code Lead, lead of a group of 11 programmers, Audio Programmer, Sound Designer, Gameplay Programmer, Interface and Systems Programmer.

Alien: Nemesis is a low-poly, fast-paced shooter with exploration, narrative, and fast-paced combat. Developed by Shadow Wizard Games Studios, a team of 23 students at CITM-UPC, developed on our own C++ game engine: TheOneEngine.

Custom C++ Game Engine
Programmer, Audio Programmer.

Game Engine programmed in C++ developed for the subject Game Engines. The engine was later used for the subject Project III as a base for the final game. TheOneEngine is a 3D game engine developed in C++ using different libraries, such as SDL2, OpenGL, GLEW, GML, imGui, imPlot, DeVil and rapidjson. Following the structure that Unity has, the engine features different options to move and control gameobjects, as well as serialisation of the scene, Unity-like camera-controls, model and texture import. It also features an audio system supported by Wwise with audio listener and source components.

Biggest stdent Hackathon in Europe
Designer

HackUPC is the first student hackathon in Spain and the biggest one in Europe, organized by Hackers@UPC, a non-profit student organization at Universitat Politècnica de Catalunya. Worked as part of the design team, I collaborated in the design of the website, merchandising and promotional materials for HackUPC 2026.

3D Website
Programmer, UI Designer, QA Tester, Audio Programmer.

3D Website of the company, showing relevant information about the company's values, portfolio, services, research projects and more. Worked in the design of the UI, as well as the programming and optimization part of the website in order to be supported in all platforms.

Submission for the 8a Gran CITM Game Jam, Winner of the award "Premi DonesTech/F5"
Programmer, Tool Developer, UI Designer and Integrator.

Winner of the award "Premi DonesTech/F5", that recognized games that included social criticism and accessible design.

In the Tracks of Fate is a point and click, fantasy, graphic adventure submitted for the 8a Gran CITM Game Jam. While on a train on their way to the capital, Aleck's life gets thrown on a literal loop. Now trapped reliving the same day, they'll need to interact and befriend the different characters in the train to get out of the time loop and, maybe, discover a few new things about their world and their being along the way.

Submission for the Premis Ludi 2025
Sound Designer, Programmer.

Submission for the Premis Ludi 2025, Brincaments is a serious, educational game for kids aged 6 to 8 where they can learn math concepts while having fun. The game is 3D low-poly and features different questions that the player can answer them by jumping on one the four different platforms.

Submission for the Premis Ludi 2024
Programmer.

Submission for Premis Ludi 2024, Catadex is a serious puzzle game where you have to guess from which region are the words that appear in the middle of the screen. You will need to guess the maximum number of words possible, and if you fail, you will have to start again! All the words that you guess will appear in the Catadex, where you will learn additional information from each of them.

Virtual Reality (VR Game)
Programmer, Sound Designer, UI Designer.

The Hound of Hades is a VR game where the player, portrayed as Persephone, has to take care of Cerberus, the hound of Hades. There are multiple actions (pet, shower, feed, play) that the player can do to interact with Cerberus, and each action has an audio, haptic and visual response, depending on the action, the object used to interact and the head out of the three heads you are interacting with.

SSubmission for the 7a Gran CITM Game Jam
Programmer, UI Designer.

Submission for the 7a Gran CITM Game Jam, hosted by Delegació CITM and with the theme “Dreams and Nightmares”, ranked 10th.

Morpheus’ Dream is a 3D low-poly, first-person game where the player faces how his reality and his daily routine changes and distorts in what seems to be a nightmare everyday after he goes to sleep.

Mobile App using APIs
Programmer, UI Designer

Mobile app programmed in Dart for the subject Mobile Devices using different APIs related to its theme. The project features different information relating to all the elements we can find in the Solar System separated by body type, the astronauts that are right now in space, a daily image of the space with its information, information about the International Space Station location and daily images of the Earth.

RPG 2D Topdown C++ game
Programmer, Audio Programmer, Sound Designer, Composer.

The Toy Box is role playing game in which a group of friends go into a gigantic toy store that has recently settled in town at the request of the main character’s little sister, when the group goes in they find themselves surrounded by shelves filled with toys and games for all ages and some incredible displays but there is no one inside; the group goes to explore the store separately.Programmed in C++ and using SDL2, Optick and Box2D, developed by Fun Makers Studios for the subject Project 2.

2D Platformer Video Game
Programmer.

2D platformer video game project for the class Development of Video Games. Programmed in C++ and using SDL2, Optick and Box2D. The project features an interactive non-static UI, God Mode, loading and saving state of the player using XML, enemies that move using a pathfinding method, collectibles, health bar, timer, score, and control of frames and delta time.

2D Physics Simulation Game
Programmer.

2D multiplayer game inspired by the games with the same name for the class Physics II where we had to create our own physics engine. Programmed in C++ using the libraries SDL2, the game displays the information of an environment with water and solid elements showing the values of the player position, buoyancy, wind, drag coefficients, gravity and velocity and acceleration of the weapon thrown by the user. The game also lets the player change the value of any of the variables mentioned. The game also displays one of the players in God Mode and the other not, to display how many health points can be extracted with the weapons, and features a game loop when one of the players dies or drowns.

2D Pinball Video Game
Programmer.

2D Pinball video game developed for the class Physics II inspired by the 3D Pinball Windows. Programmed in C++ using the libraries SDL2 and Box2D, the games features changing UI, Ranking, editable Physics (gravity, coefficients, etc) and number of frames, as well as an interactive display of the pinball that send feedback to the player with changing lights and audio. It also features Highscore, Current Score, Previous Score, multipliers and a timer.

Submission for the GMTK Game Jam 2022
Programmer, 2D Artist.

Submission for the GMTK Game Jam 2022 hosted by Game Maker's Toolkit, result in the #1287 (Enjoyment: #1169, Creativity: #1453, Presentation: #1489, Overall: #1287).

Top-down shooter where you seek revenge to save your dice friend programmed in C++ and with the library SDL2. The game displays a health bar where the amount of health points are represented with dice, power-ups, different types of enemies, a final boss and a game loop.

Recreation of the Arcade Game Guerrilla War (1987)
Programmer, Audio Programmer.

Project for the class Project I where we had to recreate an Arcade game entirely and program it. Guerrilla War is the recreation of the arcade game Guerrilla War (1987) programmed in C++ and C and with the libraries SDL and can be played on keyboard and gamepad. The game features God Mode, UI, health bar, HighScore, Current Score, a game loop.