材质在UE4中进一步改进，除了给树叶和葡萄增加了半透明度外，树叶还添加了颜色变化。

The material is further developed in UE4 adding translucency to leaves and grapes and a node that gives a color variation to the leaves.

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为了修正这个问题，我在坡道上增加了一种低透明度的浅蓝色来代表半透明材质。

To fix this, a light blue paint with low opacity representing the translucent material was added above the ramps.

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在体绘制算法中，提出了基于体素的投影算法，将不透明度参数引入绘制过程，得到具有半透明效果的三维图像。

Based on the volume rendering algorithms, the dissertation presents Projection algorithm based on Voxel, in which the opacity parameter is introduced to achieve an 3d image with translucent effect.

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