光照筆刷繪畫方式之燈光設計

Abstract

我們提出一個新的架構來處理燈光設計。使用者可以用光照筆刷直接在3D物件上著色，透過系統可以反向找出燈光的設定。這種燈光設計可以歸類於反向燈光問題，給定3D場景的描述以及使用者想看見的光照結果，找出光源的相關資訊，包括數量、位置、強度等。而我們的系統可以自動化找出這些光源訊息，協助使用者更方便的做燈光設計。

We present a new approach to lighting design with illumination brush. User can paint some illumination on object surface directly and then find lighting configuration backwardly through our system. It is based on the inverse lighting problem of determining light settings for an environment from a description of the desired illumination. Our method is useful for determining lighting layout to achieve a desired effect and can be used in conjunction with any rendering algorithm. Given the description of a scene, including geometry and material, and a desired illumination, our system finds an appropriate lighting configuration automatically. Experiments show that our system can produce good quality lighting setups.