Pascal Cotte said da Vinci built the painting up in layers, the last being a special glaze whose optical properties increased the illusion of a three-dimensional face.

帕斯卡尔·柯特称，达芬奇在绘制这张画时使用了多层颜料，最表面的一层使用了一种特殊釉料，这种颜料的光学性能可增加人物面部的三维效果。

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Pascal Cotte said Leonardo built the painting up in layers, the last being a special glaze whose optical properties increased the illusion of a three-dimensional face.

Pascal Cotte认为达芬奇是分层完成名画《蒙娜·丽莎》的，油画的最上面一层是某种特殊的透明色料层，其光学特性增加了人物面部的三维立体效果。

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Because painting is the plane twice the space, stone is three dimensional space. So it is necessary to have principles to make painting the stone, there is a sense of three-dimensional.

因为画是平面的两度空间，山石是立体的三度空间，所以须有原则才使画中之石有立体感。

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The purpose, he says, is to evoke joy through spectacular beauty, a feat he intends to achieve by painting the 410, 000 barrels, producing a three-dimensional mosaic of red and blue and yellow in the desert 100 miles outside Abu Dhabi City.

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Finally, he began painting, capturing the images flowing through his brain in a singular three-dimensional style.

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