加载中…[转载]光与形体1（大师James Gurney专辑）
(2011-09-26 23:02:22)
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分类： 绘画教程 |
Light and Form, Part 1
作者：James Gurney（恐龙帝国）
翻译：DylanZhang（http://blog.sina.com.cn/ts152154539）
（译者注：for personal study purpose，I translate this article by James Gurney。I am grateful to James for his share。 Commercial purposes is not permitted！
出于个人学习目的，我翻译了James Gurney的这篇文章。衷心感谢James分享的知识。切勿用于商业用途！）
![[转载]光与形体1（大师James <wbr>Gurney专辑）](//simg.sinajs.cn/blog7style/images/common/sg_trans.gif "[转载]光与形体1（大师James <wbr>Gurney专辑）")
翻译完了没保存真不爽啊，我就捡重点。
Light striking a geometric solid such as a sphere or a cube creates an orderly and predictable series of tones. Learning to identify these tones and to place them in their proper relationship is one of the keys to achieving a look of solidity.
光打到几何体比如球体或者立方体上产生了一系列有序的调子。学会分辨这些调子并且把它们以合适的关系组织起来就会让东西看起来很立体。
The form principle is the analysis of nature in terms of geometrical solids, which can be rendered according to laws of tonal contrast.
Modeling Factors（我真不知道这个术语叫啥，意思上是素描关系）
The photograph above shows a sphere in direct sunlight. It has a distinct set of tonal steps from light to shadow, known as modeling factors.
照片展示了直射阳光下的球体。它从亮部到暗部的调子泾渭分明。这个就是素描关系。
In direct sunlight, there’s a strong division of light and shade. The light side includes the light and dark halftones, the center light, and the highlight. The center light is the point at which the light rays strike the form most vertically. The highlight is the point where, in a shiny surface, we see a reflection of the light source.
直射光下，光与影区分明显。亮区域包括亮和暗的中间调，中央光区，高光。（译者：这里和我们说的五大调子理解上稍有不同）。中央光区就是光线垂直打到物体表面的那个部分。高光区是光滑表面上我们看见光源反射的那个点（译者：注意是光滑表面上——其实就是镜面反射的意思，请参见讲反射的那篇——比如擦干净的苹果。但我觉得石膏也是具备光滑属性，只是值很低，所以高光不如金属亮，也没有镜面反射。了解3d的会更好理解）
Note that the center light and highlight are not at the same location. The Terminator The terminator is the area where the form transitions from light into shadow. It occurs where the light rays from the source are tangent to the edge of the form. If the source is soft and indirect, the transition from light to shadow at the terminator will be more gradual. The form shadow begins just beyond the terminator.
注意中央光和高光的位置是不一样的。明暗交界线是物体从亮部转入暗部的区域。这个就是光线和表面相切。假如光源柔和非直射，那么明暗交界线上从亮部转入暗部的变化也更柔和趋于渐变（反之强光下则显得比较锐利））。明暗交界线后方就是物体投影的开始啊
To test which areas are in light and which are in shadow, you can cast a shadow with a pencil on the object. The cast shadow will show up only on the lighted side, not on the shadow side.
作者：James Gurney（恐龙帝国）
翻译：DylanZhang（http://blog.sina.com.cn/ts152154539）
（译者注：for personal study purpose，I translate this article by James Gurney。I am grateful to James for his share。 Commercial purposes is not permitted！
出于个人学习目的，我翻译了James Gurney的这篇文章。衷心感谢James分享的知识。切勿用于商业用途！）
翻译完了没保存真不爽啊，我就捡重点。
Light striking a geometric solid such as a sphere or a cube creates an orderly and predictable series of tones. Learning to identify these tones and to place them in their proper relationship is one of the keys to achieving a look of solidity.
光打到几何体比如球体或者立方体上产生了一系列有序的调子。学会分辨这些调子并且把它们以合适的关系组织起来就会让东西看起来很立体。
The form principle is the analysis of nature in terms of geometrical solids, which can be rendered according to laws of tonal contrast.
Modeling Factors（我真不知道这个术语叫啥，意思上是素描关系）
The photograph above shows a sphere in direct sunlight. It has a distinct set of tonal steps from light to shadow, known as modeling factors.
照片展示了直射阳光下的球体。它从亮部到暗部的调子泾渭分明。这个就是素描关系。
In direct sunlight, there’s a strong division of light and shade. The light side includes the light and dark halftones, the center light, and the highlight. The center light is the point at which the light rays strike the form most vertically. The highlight is the point where, in a shiny surface, we see a reflection of the light source.
直射光下，光与影区分明显。亮区域包括亮和暗的中间调，中央光区，高光。（译者：这里和我们说的五大调子理解上稍有不同）。中央光区就是光线垂直打到物体表面的那个部分。高光区是光滑表面上我们看见光源反射的那个点（译者：注意是光滑表面上——其实就是镜面反射的意思，请参见讲反射的那篇——比如擦干净的苹果。但我觉得石膏也是具备光滑属性，只是值很低，所以高光不如金属亮，也没有镜面反射。了解3d的会更好理解）
Note that the center light and highlight are not at the same location. The Terminator The terminator is the area where the form transitions from light into shadow. It occurs where the light rays from the source are tangent to the edge of the form. If the source is soft and indirect, the transition from light to shadow at the terminator will be more gradual. The form shadow begins just beyond the terminator.
注意中央光和高光的位置是不一样的。明暗交界线是物体从亮部转入暗部的区域。这个就是光线和表面相切。假如光源柔和非直射，那么明暗交界线上从亮部转入暗部的变化也更柔和趋于渐变（反之强光下则显得比较锐利））。明暗交界线后方就是物体投影的开始啊
To test which areas are in light and which are in shadow, you can cast a shadow with a pencil on the object. The cast shadow will show up only on the lighted side, not on the shadow side.
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