三维动画中灯光渲染的探索与实现毕业论文.docVIP

三维动画中灯光与渲染的探索与实现 摘要 随着科技的动画产业的近几年的飞速发展，新兴的动画产业三维动画的地位无论是在国内外都是不可动摇的。在我国的三维动画产业正以突飞猛进速度向前发展的同时，不得不提到在制作影片的过程中灯光与渲染的布局直接关系到了这些沁入大量心血作品的成败。 在一部三维动画的制作中，只依靠精致的模型和剧本的编排是不可能构成一部吸引观众眼球的作品的。要想达到完美的动画效果，场景的基调和气氛是不可或缺的。这些是可以通过灯光技巧的运用达到一定较为完美的程度。由于软件只是没有真实的自然灯光，在动画中看似真实的自然灯光实际上也是有很多软件自带的简单灯光根据明暗关系相互依赖形成的[1]。本文在灯光方面通过对三维动画中角色与场景灯光的布局，遵循的常规设置等的探讨结合作品中的实现来体现灯光技术的应用。例如在灯光的布局总是要遵循自然环境的明暗关系。体现场景的明暗分布结合真实场景。我们不可能随意摆放几盏灯光就可以达到某种效果的，其中的技巧十分深奥。 同时前后期渲染工作的加入可以提高动画作品的质量，本文也就渲染的前后期工作进行研究和设计。前期动画渲染工作主要对动画单帧图片进行渲染，考虑到后期制作的简便性，前期渲染往往采用分成渲染技术。而后期渲染技术主要是在后期的合成软件中单帧图片的分层图层进行调节例如AE, Vegas, Premiere等。最后渲染输出视频。这样的视频就是所谓的毛片。 关键词：三维动画，渲染，灯光 The Exploration and Implementation of The 3D Animation about Lighting and Rendering Abstract Along with the development of science and technology of the animation industry in recent years, the status of the emerging animation industry the three dimensional animation, wherever at home or abroad, is unshakable. At the same time, we have to mention that the layout of the light to render directly related to the success or failure of the works, during the production of the film. In a three dimensional animation production, it is impossible that attracting audiences’ eyes only depended on the model or episode. So, only include the atmosphere and mood can the production get the perfect. And the light could be helpful. But the light in the soft is not the real natural light. In order to get the real effect, using the various lights is necessary. Through discussing the layout of the light, parametric setting and the presentation of production, we can get concrete realization. For instance, it is have to comply with the regular of the natural light and pay attention to the incorporation with light and shade. Wherever, we cannot expect getting the effect by putting several lights. Meanwhile, the render give a positive influence on the final presentation of production. Studying and designing the rendering in all the progress is another main point in this paper. Early ren