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The Gnomon Workshop – Global Illumination and Caustics in Maya & mental ray
在這次教程中，作者展示了多種技術(shù)，在Maya和mental ray卟使用全局照明和焦散。全局照明和焦散渲染技術(shù)利用光子來創(chuàng)建自然采光現(xiàn)象的方法。光子為基礎(chǔ)的照明讓光線反彈和創(chuàng)建復(fù)雜的效果，是不可能與其他渲染方法。與全局光照理論的引進(jìn)培養(yǎng)，并開始迅速移動(dòng)到如何控制基本GI渲染設(shè)置。弗雷德展示如何平衡精度，強(qiáng)度和光子發(fā)射創(chuàng)建快速，優(yōu)質(zhì)的產(chǎn)品呈現(xiàn)使用全局光照沿著決賽聚集。燒堿照明技術(shù)和藝術(shù)的挑戰(zhàn)都覆蓋了非常詳細(xì)。材料，如玻璃，金屬光澤和半透明的塑料作為案例研究。合成的地址應(yīng)為任何照明工作流程的一個(gè)組成部分，因?yàn)樗兄谔岣吖ぷ餍剩瑫r(shí)渲染通行證是任何成功的照明戰(zhàn)略的關(guān)鍵。對(duì)于那些有興趣在掌握的mental ray，這個(gè)標(biāo)題提供了從經(jīng)驗(yàn)豐富的行業(yè)藝術(shù)家的寶貴技術(shù)。

In this lecture, Frederic Durand demonstrates a variety of techniques for using Global Illumination and Caustics within Maya and mental ray. Global Illumination and Caustics
rendering techniques use photons as the method to create natural lighting phenomenon. Photon based lighting allows light rays to bounce and create complex effects that are not possible with other rendering methods. The training begins with an introduction on Global Illumination theory and quickly moves into how to control the basic GI render settings. Fred shows how to balance accuracy, intensity and photon emission to create fast, production quality renders using Global Illumination alongside of Final Gather. The technical and artistic challenges of caustic lighting are covered in great detail. Materials such as glass, shiny metals and translucent plastics are used as case studies. Compositing is addressed as an integral part of any lighting workflow, as it helps to work more efficiently, while rendering in passes is critical to any successful lighting strategy. For those interested in mastering mental ray, this title offers invaluable techniques from an experienced industry artist.

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