aka_chang, born in 1979, Taipei. He is a Taiwanese media artist who specializes in using light to create spectacular scenes. Early in his career, he entered the field of visual arts as a VJ. As he grew older, it became apparent to him that even the most complex and dazzling images could be reduced to a single light source. This realization led to experimentation with various luminous materials and smoke, logically replicating and combining light arrays in symmetrical or asymmetrical patterns. Observations were made on their textures, their relationships with the medium, and their potential impact on human perception, establishing three-dimensional light and sound structures connected to time, space, sound, and people.

Currently, his art represents an ongoing process of reduction.

His work “Rainforest of Oslo” was selected for the Taipei Digital Art Awards (2008). The audiovisual piece “June Orbs” was chosen for the Kaohsiung Awards in 2020. In recent years, several interactive audiovisual works have been created, combining multiple optical media, including “Void Jungle” and “Struct by Kindling” (2018), and the “Multimmersion” series (2017-2021). The latest audiovisual concert, “December Nite,” premiered at the National Taichung Theater in April 2024.

張方禹，生於1979年台北，台灣媒體藝術家，擅長運用光線創造奇景。早期以VJ的身份進入視覺藝術領域，隨年歲漸長他感受到再複雜絢麗的影像減少到最低限其實是一個光源。於是他開始實驗各種發光媒材與煙霧，透過邏輯性地複製、對稱或不對稱地組合光陣列，觀察其質地、與介質間的關係，乃至影響人類感知的可能，建立與時間、空間、聲音和人有所連結的立體聲光結構。

曾經創始 muse-whisper VJ團隊。曾經合辦以中⽂書寫的VJ資訊平台 ”燧⼈氏 Zuirens”，是台灣當代VJ⽂化曾經興起的推⼿。現階段他的藝術僅代表一個繼續減化的過程。

作品《奧斯陸的雨林》入選台北數位藝術獎(2008）。音像交互作品《六月球兒》入選2020高雄獎。近年幾則複合多重光媒材的音畫互動作品包括：《白靄林》、《光形成的結構》(2018)、《浸漬的()線》(2017-2021)。音像專場作品《December Nite》2024年四月於臺中國家歌劇院首演。