Yen Chiang / Portfolio← Back to work

USC MFA · Technical Artist

Cemented Dreams

Cemented Dreams game cover

What I did

Unreal Engine · Materials · VFX · C++ · Blueprint · Niagara

01 / EFFECTS SHOWCASE

Materials, particles & energy

Selected development recordings show the effects in motion, from material studies to gameplay and interior tests. Choose a category, then open a clip to explore my work.

02 / DEVELOPMENT PROCESS

Prototype archive

Five supporting studies preserve the early blockout, noise tests, and particle variations. Similar experiments are grouped here so the main gallery stays focused.

Explore the early prototypes · 5 studies

03 / WEATHER SYSTEM

Data-Driven Weather System

A reusable Unreal Engine weather manager built with C++ and Blueprints. Data-table presets coordinate rain, wetness, fog, clouds, sky light, post-processing, and time-of-day behavior through a clean, designer-friendly interface.

Dark blue sky in the weather-system test scene
Dark sky · recorded test view
Gray cloudy sky in the weather-system test scene
Cloudy sky · recorded test view

These two screenshots show contrasting sky appearances in the weather test scene. Open either image to inspect the full editor capture.

Weather controls & implementation evidence

Curve-driven time of day

Weather manager with light references, intensity and color curves, time of day and day speed
The manager exposes sun, moon, sky light, and fog references; curves for moon intensity, sky-light intensity, fog density, sky-light color, and fog color; plus Time Of Day and Day Speed.

Selectable weather types

Weather type dropdown listing rain, snow, clear, and fog variants
The dropdown lists None, GreyRain, GreenRain, Snow, Clear, CleanFog, GreyFog, and GreenFog. It documents the available selections, rather than demonstrating every weather state's final appearance.

Artist-facing weather parameters

Weather manager component tree and exposed rain and fog parameters
The component tree includes RainNiagara, SkyLightRef, SunLight, and SkyAtmosphere. Exposed parameters include rain colors and intensities, fog density and color variants, height falloff, albedo, time of day, and day speed.
Technical breakdown

Architecture

A C++ manager owns time and weather state while Blueprints expose iteration-friendly controls to artists and designers.

Content

Presets include multiple rain and fog variants with coordinated lighting, tint, wetness, and atmosphere values.

Production

Developed for Cemented Dreams, then extended as a modular personal portfolio system.