打造科幻太空激战效果maya教程（下）

上节maya教程“打造科幻太空激战效果maya教程（上）”，本节汇宝盆为大家讲解了MAYA,3DS,PS共同打造科幻太空激战效果，今天的maya教程将继续讲解。

Progression of my texture work , at this point I begun lighting work. I used Dome light script for GI ambient atmostphere light. After I finished lighting, I begun to fine tune my texture. I wanted my model to look old as it was used for a long time so I added more dirt to texture map. Alien shader used subsurface scattering in maya to acheive the creature-skin look.
在进行纹理制作的过程中，我也着手光线制作。我选择半球体灯光材质来做周围环境、大气的全局光线。结束光 线制作后，我开始仔细调整纹理。我希望我的模型看起来象是用过很久那样陈旧，所以我在纹理贴图里加入了更多的颗粒。在MAYA里使用Alien shader的子面散射（subsurface scattering）来完成外星人皮肤的外表。


--==太空船渲染==--


Spaceship was rendered in multi-pass method. I seperated it in several parts:1.color with ambient light pass, 2.sun light diffuse pass. 3. specular pass 4.shadow pass. 5.ambient-occlusion pass,6.effect pass. with this method. I had more freedom to fine tune it without rerender.
太 空船的渲染必须采用多通道的方法。我把它分成几个部分：1、color with ambient light pass，2、阳光 diffuse pass，3、specular pass，4、shadow pass,5、ambient-occlusion pass,6、effect pass。通过这个方法，我可以不用上色，更自由地调整飞船的细节。（译者注：作者提过他是采用Mental ray进行渲染的。所以相关术语保留英文原文）

--==驾驶员渲染==--


Main element of image the pilot was made by the same technics and concept with spaceship but needed more details. At this stage I begun to combine all element to see the overall composition.
图片的主要元素驾驶员采用太空船的制作方法和理念，但要注意更多细节调整。在这里我开始把所有的元素放在一起来观察整体作品的效果。


--==开始后期制作==--



Lighting and texturing was done. I begun to experiment with the final composition. I put my rendered element in differnt position, sit back and post my experiment in forum and recieved many valuable comments. Finally I decided to follow my old composition . At this point I used photoshop to desaturate my render into mono-tone image to "seperate" value and add depth to my image.
光线和纹理渲染都完成了。我开始尝试完成整个作品。我把上好色的元素放到不同 的位置，然后反思我的尝试并标上许多比例的注释。最终我决定按照我开始的想法完成作品。这时我用Photoshop降低图片的色彩饱和度直至变成单色图 片，以找到不同的比例并增加这份作品的层次感。

--==爆炸和导弹轨迹==--


I used maya fluid effect for sky explosion and missle trails.
我使用玛雅的流效果来制作天空中爆炸以及到达导弹碎片。


--==最终处理==--


I composited all elements with adobe photoshop, desaturated, blur, I added glow effect, paint fog to seperate my element. With my greyscale reference from my earlier step, I adjusted contrast and value of pilot to seperate it from the spaceship .

我开始用photoshop混合所有的元素——褪色、模糊……，并且给不同元素加上glow effect（微光），雾化效果。参考之前的步骤适当改变图片的灰度。我不断调整对驾驶员和太空船的比例。

I begun to fine tune all detail point, retouche some problem spots and I used photoshop`s liquify to add "heat wave"effect to spaceship jet. Finally it was done!
我开始最终调整所有的细节部分，不断修改一些问题，并且使用Photoshop的liquify滤镜来实现太空船喷射出的尾气效果。这份作品终于完成了!!

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