漫射

When the viewpoint is changing quickly, the rendering algorithm ignores some details of the diffuse component, otherwise the scene is rendered more precisely. The Specula highlight is dependent of the viewpoint, it must be processed in real time. We present an algorithm to get rid of the area that does not contain specula highlight quickly and calculate only the area that contains the specula highlight. In order to calculate the specula reflection and refraction component, we presented a new raytracing algorithm based on the environment map transformation. The environment maps are constructed at the sample points of the scene in the preprocessing phase. We add depth information in the environment maps and generate the exact reflection and refraction intensity with the transformation of a few pixels.

对于表面光亮度漫射分量，由于它与视点无关，可以把面片按照光照细节的分布预剖分成层次结构，然后在实时漫游时根据场景变化的快慢决定绘制的细致程度；对于镜面高光分量，由于它与视点有关，必须实时处理，我们提出了一种快速高光裁剪算法，通过简单测试，去除那些不包含高光的区域，只处理包含高光的区域；对于镜面反射分量和折射分量，我们提出了一种基于环境映照变换的快速光线跟踪算法，预先在场景的离散采样点处建立环境映照，然后根据入射点的位置，把邻近采样点处的环境映照上相关象素处的可见点变换过来，求取反射分量和折射分量。

The above definition of diffuse density implies that the input light is collimated and that all the output flux is collected.

上面定义的漫射密度意味着输入光先经过准直，然后收集所有的输出量。

On the earth, our atmosphere diffuses light so that, when the sun is up, light seems to be everywhere.

在地球上，我们的大气层使光发生漫射，结果，当太阳升起时，似乎阳光无处不在。

On the earth, when the sun is up, our atmosphere diffuses light, making it seem to be everywhere.

在地球上，当有太阳光时，大气使光线漫射，从而使光线似乎无处不在。

And some discussions are included. Additionally, the probable structure information for the finite-thickness two-layered slab tissue can be obtained from the diffusion reflectance and transmittance measurements according to the discrepancies of fitting reduced scattering coefficient and the sign of the amplitude factor.

标 签 医用光学与生物技术光学参数测量时间分辨漫射光谱多程测量蒙特卡罗模拟最小二乘拟合 medical optics and biotechnology optical parameters determination time-resolved diffusion spectroscopy multi-distance measurements Monte-Carlo simulation least square fitting algorithm

Tip 5 : A mirror material is very similar to Chrome: Black diffuse colour, no specular highlights and Raytrace 100% in the reflection map.

提示5：镜面材质与鉻合金很像：黑色的漫射颜色，没有高光，反射通道数量为100。

A light-diffusing shutter (522) is used for generating the differently blurred images.

用光漫射快门（522）来生成不同模糊度的图像。

Lingyun, Guangxi music industry is located in the north-western mountain districts, near the Yunnan-Guizhou Plateau, high and steep terrain, which rise amid undulating, tree height Lin Micronesia, spring over, vertical and horizontal streams, lush, cloud the fine mist, sunshine appropriate diffuse light, and the climate mild and humid, spring Summer is "sooner or later all over the sunny mountain fog, rain all day Manshan clouds" is not cold in winter and summer without heat, the annual average temperature of 19-23 ℃, annual rainfall 1700-1800 mm, more than tea grown in 800-1500 m peaks of the mountains, the lace tea plantations are located in Canyon Creek, the soil most of the plateau forest soil, organic matter content was high, deep fertile soil suitable for growing tea.

凌云、乐业是位于广西西北部的山区县，靠近云贵高原，地势高峻，峰峦起伏，树高林密，山泉遍布，溪流纵横，郁郁葱葱，云雾蒙蒙，日照适宜，漫射光多，气候温和湿润，春夏更是&晴时早晚遍山雾，阴雨成天满山云&，冬不严寒，夏无酷暑，年平均温度19-23℃，年降雨量1700-1800毫米，茶树多生长在800-1500米的群山峻岭上，连片茶园多分布在峡谷溪间，土壤多为高原森林土，有机质含量高，土层深厚肥沃，适宜茶树生长。

This work mainly studies the application of MAXWELL fisheye micro-sphere-lens of virtual parameter with gradient refractive index distributing on dispersion material and the characteristic of MAXWELL fisheye lens with virtual parameter.

本工作研究的主要是具有梯度折射率(Gradient refractive index，GRIN)分布的虚宗量麦克斯韦鱼眼微球的光学性质、在表面漫射材料上的应用和虚宗量麦克斯韦鱼眼微球透镜的性质特点。

To help address the 2nd weakness above, three levels of optimization were added to the Diff Engine.

为了帮助解决第二弱点，3个级别的优化被添加到漫射引擎。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失