赫特纳使用一种由蛋黄、动物血液以及废弃的机油混和而成的蛋彩涂料涂抹在工作室的玻璃幕墙上以挡住光线。
The artist has also blocked out the light from the gallery 's existing windows using a specially created tempera , mixing egg yoke with pig 's blood and used motor oil .
赫特纳