Vray for Rhino小贴士与小技巧(收集中~~~~~~~)

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所有有关渲染的小贴士与小技巧,
您常用的,
觉得有用的,
请您拿出来与大家一起分享吧!!
关于secondary ray bias

有时它对有相互交叉的模型很有用处,如果不使用二次光线偏移,光线就会在两两相交的地方产生黑色斑块,为避免这种情况就可以使用二次光线偏移设置.

(Sometimes it is useful to model intersecting objects. If no bias is used, than Vray marks the intersection black. To avoid this

black artifact it helps to set a secondary ray bias and a bias in the shadow properties of all lights.)

对相交物体模型,二次光线偏移设置与否的对比.

关于渲染的基础书籍 能在这里找到 http://www.3drender.com/.它适合每一位初学者 (can be found here - http://www.3drender.com/. It's a must for every beginner.) PS:关于 http://www.3drender.com/,是一个介绍计算机绘图的网页,上面有它出版过的书籍, 市面上有翻译的版本出售.有兴趣的可以了解一下. More:过几天传上它的第一本关于计算机绘图的中文译本.

多层材质-------示例


多层贴图示例(框架外围线为物体面积大小)
(Example of a material with textured layers (the line around the mirror show the rhino geometrie))


PS:大家讨论一下作者为什么要在中间加个反射贴图层.俺不太明白是啥意思.


基于图像照明
(Image Based Lighting)


VFR的贴图编辑器能支持HDRI图像作为GI照明或场景背景
(The V-Ray for Rhino texture editor can be used to load high dynamic range images (HDRI) as GI and Background maps of your scene environment.
The HDRI image will be used to illuminate the geometry in your scene. )


原文件与HDRI文件下载链接: http://pan.baidu.com/s/1kVohBaJ 密码: 2ugf
PS:原教程的原文件下载连接失效,本文件是我自己制作,仅作为参考用.


步骤:

• In the V-Ray for Rhino RenderOptions > EnvironmentSettings, select the "m" button to use a map instead of a floating point color.
• In the V-Ray for Rhino Texture Editor, in the Common section, set the map type as Bitmap.
• Under the Bitmap section, choose "m" and locate the alt55.hdr file.
• Select Environment mapping type from the UVW section. Choose the Mirror_Ball mapping type for this HDR image.
• Use the Multiplier to control the amount of light being transmitted by the HDR image. In this case we set it to 1.5.
• Follow steps 2-5 for setting the reflection map.
  

以下是我制作的场景文件渲染示例

关于secondary ray bias

有时它对有相互交叉的模型很有用处,如果不使用二次光线偏移,光线就会在两两相交的地方产生黑色斑块,为避免这种情况就可以使用二次光线偏移设置.

(Sometimes it is useful to model intersecting objects. If no bias is used, than Vray marks the intersection black. To avoid this

black artifact it helps to set a secondary ray bias and a bias in the shadow properties of all lights.)

对相交物体模型,二次光线偏移设置与否的对比.

关于渲染的基础书籍

能在这里找到 http://www.3drender.com/.它适合每一位初学者

(can be found here - http://www.3drender.com/. It's a must for every beginner.)

PS:关于 http://www.3drender.com/,是一个介绍计算机绘图的网页,上面有它出版过的书籍,

市面上有翻译的版本出售.有兴趣的可以了解一下.

More:过几天传上它的第一本关于计算机绘图的中文译本.

多层材质-------示例


多层贴图示例(框架外围线为物体面积大小)
(Example of a material with textured layers (the line around the mirror show the rhino geometrie))



PS:大家讨论一下作者为什么要在中间加个反射贴图层.俺不太明白是啥意思.

基于图像照明
(Image Based Lighting)


VFR的贴图编辑器能支持HDRI图像作为GI照明或场景背景
(The V-Ray for Rhino texture editor can be used to load high dynamic range images (HDRI) as GI and Background maps of your scene environment.
The HDRI image will be used to illuminate the geometry in your scene. )


原文件与HDRI文件下载:
Image Based Lighting.rar (509.86 KB, 下载次数: 526)

2008-9-5 19:41 上传

点击文件名下载附件

PS:原教程的原文件下载连接失效,本文件是我自己制作,仅作为参考用.


步骤:

• In the V-Ray for Rhino RenderOptions > EnvironmentSettings, select the "m" button to use a map instead of a floating point color.
• In the V-Ray for Rhino Texture Editor, in the Common section, set the map type as Bitmap.
• Under the Bitmap section, choose "m" and locate the alt55.hdr file.
• Select Environment mapping type from the UVW section. Choose the Mirror_Ball mapping type for this HDR image.
• Use the Multiplier to control the amount of light being transmitted by the HDR image. In this case we set it to 1.5.
• Follow steps 2-5 for setting the reflection map.

以下是我制作的场景文件渲染示例

MY  怎么现在才拿这些好东西出来啊

谢谢了.,:up :up :up

这个是在假期里的学习笔记,零碎,没怎么整理,以后再慢慢发.
再者晕文菜的很,译时无法准确用词.见笑了.:down

My非常不错的想法和资料,加晕支持

非常好的資料，謝謝！:up :up :up

久违的好贴！
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