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Artur Raffael profile photo. Person with black hair styled upward wearing glasses.

Artur Raffael

tucoff

Graphics Programming | Unity Generalist | Researcher

My dream is to see a true curved line in a computer.
I love GPU programming & Geometry.

Featured Highlights

Bending the Ray (Thesis)

Visual simulation of spacetime distortions applied to Ray Tracing.

C++Ray TracingPhysics
View Website
Crônicas Oscilantes de Yùhui Logo

Crônicas Oscilantes de Yùhui

Original Tabletop RPG system set in the illuminated lands of Yùhui.

Tabletop RPGGame Design
View Website
DEV

IN the wake of FINITO

Original game project with focus on narrative and unique storytelling.

Game DesignNarrative
In Progress...

Games & Projects

SS2K

SS2K

Project developed at Abdu Labs.

Abdu LabsUnity
Play on Itch.io
Wall Wall Crazy Pose: Vibrant game logo with neon blue text 'WALL WALL CRAZY POSE' on a stage-like background with bright circular lights. Two silhouettes of people in dynamic action poses are shown in blue and magenta, suggesting movement and dance. The background features strong blue and cyan rays of light creating an energetic atmosphere.

Wall Wall Crazy Pose

Fun project developed at Abdu Labs.

Abdu LabsUnity
Play on Itch.io
Hexa Tour: Colorful hexagon puzzle grid showing various ingredients for sushi. The hexagons display different colors representing: red for fish roe, orange for salmon, white and pink spiral for narutomaki, yellow for corn, and green for cucumber. Below the icon it shows 'Hexa Food Tour: World of Sushi' and developer 'Zoyd'.

Hexa Tour

Mobile puzzle game developed at Zoyd Games.

Zoyd GamesMobile
Google Play
Cardeais Digital: Pixelated game title screen with Asian-inspired aesthetic in red, pale pink and cream tones. Features a large rounded rectangle with thick red border filled with pale pink. The word 'CARDEAIS' is written in large pixel art style with varied colored blocks (white, gray, blue, red, green, cyan) mixed together. Below it shows 'Artur Raffael' in red letters with a small yellow and red pixel art symbol beneath.

Cardeais Digital

Digital implementation of a Card Game.

Card GameDigital
Watch Video
InsiDiamond: 3D simulation scene with light blue and cyan geometric planes creating depth. A small yellow sphere (atom) is pulled by a purple line connecting to a larger pixelated form at the top (possibly a force field or tool). In the top right corner, a 2D pixel art sprite of a character with red hair and glasses is visible with an illegible text block, suggesting this character is a narrator or tutorial guide in the game.

InsiDiamond

Beam lasers inside the diamond while quantum echoes resonate.

ArcadeIndie
Play on Itch.io
Brain Is A Muscle: 3D isometric perspective game screenshot showing a simple low-poly interior room with pale pink walls and darker floor. A 2D pixel art character with black tied-up hair wearing white shirt and dark pants stands in the center room. A small red and white object sits on a pedestal. Game UI in top right shows controls and power information. Bottom left shows dialogue box com bearded pixel sprite character saying 'THIS WALL IS KIND OF SOFT, I HOPE THEY FIX IT SOON.'

Brain Is A Muscle

Project focused on puzzles solved by punching.

PuzzlePunches2.5D
Watch Gameplay
Tamtam Adventures: 3D low-poly game screenshot showing an open field com green grass and brown wooden fences delimiting the space. A female character com red hair tied up wears dark clothes and runs across the grass. Small cubic white and black objects resembling sheep are scattered in the field. Top left HUD displays 'Life: 100' and 'Sheeps: 0' statistics. A large black cubic block or obstacle rises in the background creating depth and challenge.

Tamtam Adventures

Help Tamtam rescue their dogs from Mr. Sheep while protecting the Great White Cube.

Tower DefenseVoxel
Watch Gameplay
Arokin: Game title screen com African-inspired aesthetic using earthy tones of orange and brown. The background is vibrant orange com geometric triangular patterns in dark brown on the sides. A large Baobab-like tree com bare thin branches is drawn in brown in the center. The words 'AROKIN' in large black font and 'DESVENDANDO REINOS' in thinner white font are centered over the tree trunk. Below is a large oval button com yellow borders and light beige-yellow fill containing the word 'Início' in black, indicating the game's start point.

Arokin Project

A game about African storytellers called Arokin.

Somos CordelAfrica
Watch Demo
Detetive Castelo Branco: Top-down perspective pixel art detective game showing an apartment interior. The scene displays sand-colored tiled floor and brown walls com various furniture including a bed and nightstand in the sleeping area, sofa and center tables in the living room, and refrigerator and stove in the kitchen area. A detective character in pixel art wearing a brown hat and coat stands near the kitchen. At the top in red text reads the objective: 'SEARCH FOR THE TABLE WITH THE BADGE AND NOTEBOOK.'

Detetive Castelo Branco

Investigation prototype.
(Note: AI art used only for prototyping. I'm against commercial use.)

PrototypeInvestigation
View Prototype

Published Articles

Relativistic Raytracer: A GPU Benchmark Across Metrics, Integrators, and Platforms

39th Conference on Graphics, Patterns and Images (SIBGRAPI 2026)

"Interactive relativistic ray tracing has shifted from offline pipelines to real-time GPU workloads, allowing the visualization of gravitational light deflection via per-pixel geodesic integration. However, developers face critical engineering tradeoffs between high-level engine abstractions (e.g., Unity) and low-level APIs (e.g., Vulkan), as well as the choice of numerical integrators across different spacetime geometries. This paper introduces A Multi-Engine Benchmark for Relativistic Raytracing, a comprehensive performance-accuracy dataset spanning 16,656 timed renders across three spacetime metrics (Newton, Schwarzschild, Kerr), four integrators, and six scenes of varying multi-body complexity..."

Project Page & Dataset

Automating Test Design Using LLM: Results from an Empirical Study on the Public Sector

Conference on Digital Government Research (DGO2025)

"An efficient test process can detect failures earlier in software development, contributing to the quality of software produced by governmental entities and bringing the potential to improve government service delivery. Due to the high cost and the reduced resources available, the automation of the test activities plays a strategic role in improving testing efficiency. Designing test cases from user stories is a common approach to assessing the quality of a system under testing. This paper reports on the research, implementation, and evaluation of a tool that automatically generates system test designs from user stories with the support of Generative Pre-trained Transformer 4 (GPT-4) in the context of a public sector organization..."

Read Full Paper
Foto de perfil de Artur Raffael. Pessoa com cabelo preto penteado para cima usando óculos.

Artur Raffael

tucoff

Graphics Programming | Unity Generalist | Pesquisador

Meu sonho é ver uma linha verdadeiramente curvada em um computador.
Amo GPU programming & Geometria.

Destaques

Dobrando o Raio (TCC)

Simulação Visual das distorções do espaço-tempo aplicada ao Ray Tracing.

C++Ray TracingFísica
Ver Site
Logo de Crônicas Oscilantes de Yùhui

Crônicas Oscilantes de Yùhui

Sistema original de RPG de mesa ambientado nas terras iluminadas de Yùhui.

RPG de MesaGame Design
Ver Site
DEV

IN the wake of FINITO

Jogo autoral com foco em narrativa e história própria.

Game DesignNarrativa
Em Progresso...

Jogos & Projetos

SS2K

SS2K

Projeto desenvolvido na Abdu Labs.

Abdu LabsUnity
Jogar no Itch.io
Wall Wall Crazy Pose: Logo do jogo vibrante com texto em neon azul 'WALL WALL CRAZY POSE' em um fundo estilo palco com luzes circulares brilhantes. Duas silhuetas de pessoas em poses de ação dinâmicas são mostradas em azul e magenta, sugerindo movimento e dança. O fundo apresenta fortes raios de luz azul e ciano criando uma atmosfera energética.

Wall Wall Crazy Pose

Projeto divertido desenvolvido na Abdu Labs.

Abdu LabsUnity
Jogar no Itch.io
Hexa Tour: Grade colorida de hexágonos em quebra-cabeça mostrando vários ingredientes para sushi. Os hexágonos exibem cores diferentes representando: vermelho para ovas de peixe, laranja para salmão, branco e espiral rosa para narutomaki, amarelo para milho e verde para pepino. Abaixo do ícone mostra 'Hexa Food Tour: World of Sushi' e desenvolvedora 'Zoyd'.

Hexa Tour

Jogo mobile de puzzle desenvolvido na Zoyd Games.

Zoyd GamesMobile
Google Play
Cardeais Digital: Tela de título do jogo pixelada com estética inspirada na Ásia em tons de vermelho, rosa pálido e creme. Apresenta um grande retângulo arredondado com borda grossa vermelha preenchida com rosa pálido. A palavra 'CARDEAIS' é escrita em grande estilo pixel art com blocos de cores variadas (branco, cinza, azul, vermelho, verde, ciano) misturados. Abaixo mostra 'Artur Raffael' em letras vermelhas com um pequeno símbolo pixel art amarelo e vermelho abaixo.

Cardeais Digital

Implementação digital de um Card Game.

Card GameDigital
Ver Vídeo
InsiDiamond: Cena de simulação 3D com planos geométricos azul claro e ciano criando profundidade. Uma pequena esfera amarela (átomo) é puxada por uma linha roxa conectando a uma forma pixelada maior no topo (possivelmente um campo de força ou ferramenta). No canto superior direito, um sprite pixel art 2D de um personagem com cabelo vermelho e óculos é visível com um bloco de texto ilegível, sugerindo que este personagem é um narrador ou guia de tutorial no jogo.

InsiDiamond

Jogo arcade frenético focado na coleta de diamantes.

ArcadeIndie
Jogar no Itch.io
Brain Is A Muscle: Captura de tela de jogo em perspectiva isométrica 3D mostrando um simples interior de sala low-poly com paredes rosa pálido e piso mais escuro. Um personagem pixel art 2D com cabelo preto amarrado usando camisa branca e calças escuras fica no centro da sala. Um pequeno objeto vermelho e branco fica em um pedestal. A UI do jogo no canto superior direito mostra controles e informações de poder. O canto inferior esquerdo mostra caixa de diálogo com sprite pixel barbudo dizendo 'ESSA PAREDE TA MEIO FOFA, ESPERO QUE CONSERTEM LOGO.'

Brain Is A Muscle

Projeto focado em mecânicas de puzzle sendo resolvidas com socos.

PuzzlePunches2.5D
Ver Gameplay
Tamtam Adventures: Captura de tela de jogo 3D low-poly mostrando um campo aberto com grama verde e cercas de madeira marrom delimitando o espaço. Uma personagem feminina com cabelo vermelho amarrado usa roupas escuras e corre sobre a grama. Pequenos objetos cúbicos brancos e pretos assemelhando ovelhas estão espalhados no campo. O HUD do canto superior esquerdo exibe estatísticas 'Life: 100' e 'Sheeps: 0'. Um grande bloco cúbico preto ou obstáculo se eleva ao fundo criando profundidade e desafio.

Tamtam Adventures

Ajude tamtam a resgatar seus cachorros do Sr. Ovelha enquanto protege o grande cubo branco.

Tower DefenseVoxel
Ver Gameplay
Arokin: Tela de título do jogo com estética inspirada na África usando tons terrosos de laranja e marrom. O fundo é laranja vibrante com padrões triangulares geométricos em marrom escuro nas laterais. Uma grande árvore semelhante a uma Baobá com galhos nus e finos é desenhada em marrom no centro. As palavras 'AROKIN' em fonte grossa preta e 'DESVENDANDO REINOS' em fonte mais fina branca estão centralizadas sobre o tronco da árvore. Abaixo há um grande botão oval com bordas amarelas e preenchimento bege-amarelo claro contendo a palavra 'Início' em preto, indicando o ponto de partida do jogo.

Projeto Arokin

Jogo sobre contadores de história Africanos chamados Arokin.

Somos CordelAfrica
Ver Demo
Detetive Castelo Branco: Perspectiva de cima para baixo jogo pixel art de detetive mostrando interior de apartamento. A cena exibe piso revestido de cor areia e paredes marrons com vários móveis incluindo cama e criado-mudo na área de dormir, sofá e mesas de centro na sala de estar, e geladeira e fogão na área de cozinha. Um personagem detetive em pixel art usando chapéu marrom e casaco fica perto da cozinha. No topo em texto vermelho lê-se o objetivo: 'PROCURE A MESA COM O DISTINTIVO E O BLOQUINHO.'

Detetive Castelo Branco

Protótipo de investigação.
(Nota: Arte de IA utilizada apenas para prototipagem. Sou contra o uso comercial.)

ProtótipoInvestigação
Ver Protótipo

Artigos Publicados

Relativistic Raytracer: A GPU Benchmark Across Metrics, Integrators, and Platforms

39th Conference on Graphics, Patterns and Images (SIBGRAPI 2026)

"Interactive relativistic ray tracing has shifted from offline pipelines to real-time GPU workloads, allowing the visualization of gravitational light deflection via per-pixel geodesic integration. However, developers face critical engineering tradeoffs between high-level engine abstractions (e.g., Unity) and low-level APIs (e.g., Vulkan), as well as the choice of numerical integrators across different spacetime geometries. This paper introduces A Multi-Engine Benchmark for Relativistic Raytracing, a comprehensive performance-accuracy dataset spanning 16,656 timed renders across three spacetime metrics (Newton, Schwarzschild, Kerr), four integrators, and six scenes of varying multi-body complexity..."

Página do Projeto & Dataset

Automating Test Design Using LLM: Results from an Empirical Study on the Public Sector

Conference on Digital Government Research (DGO2025)

"An efficient test process can detect failures earlier in software development, contributing to the quality of software produced by governmental entities and bringing the potential to improve government service delivery. Due to the high cost and the reduced resources available, the automation of the test activities plays a strategic role in improving testing efficiency. Designing test cases from user stories is a common approach to assessing the quality of a system under testing. This paper reports on the research, implementation, and evaluation of a tool that automatically generates system test designs from user stories with the support of Generative Pre-trained Transformer 4 (GPT-4) in the context of a public sector organization..."

Ler Artigo Completo