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成龙	2009-05-14 20:28
lighttools背光模拟初上手lighttools做背光贴几个图大家看看大家给点建议： biw2f~V [attachment=18503] >Lrud{ [attachment=18504] q'~F6$kv5 [attachment=18502] _\|%l) KO 3D/<R\|p 交流探讨QQ：859504158 f))'8 希望大家都多给点意见

成龙	2009-05-18 19:31
欢迎广大背光朋友提出见解！！！

cheering	2009-05-20 11:37
我不是做背光的，对背光也不太了解 skRI\ 我想请教一下，做背光和做一般照明的区别。 TB jVhfpS[ 谢谢！

myjobpeter	2009-07-15 14:54
还不错，挺均匀，不过真够亮的

yanglm	2009-08-13 15:23
我也是做背光的，不知为什么，借用一下楼主的图说明一下问题，得到的总是发光强度的分布，不像楼主是照度的分布，请大家指点。。。

加勒比海盗	2009-08-13 16:12
新手看不懂哦

barryrao	2009-08-13 19:13
学习中.........

成龙	2009-08-28 08:51
你可以建立空间亮度接受器！！

chengipx	2009-09-04 15:49
学习一下。。

成龙

2009-09-15 14:42

How Many Rays Do I Need for Monte Carlo Optimization?
While it is important to ensure that a sufficient number of rays are traced to
distinguish the merit function value from the noise floor, it is often not necessary to
trace as many rays during optimization as you might to obtain a given level of
accuracy for analysis purposes. What matters during optimization is that the
changes the optimizer makes to the model affect the merit function in the same way
that the overall performance is affected. It is possible to define the merit function so
that it has less accuracy and/or coarser mesh resolution than meshes used for
analysis and yet produce improvements during optimization, especially in the early
stages of a design.
A rule of thumb for the first Monte Carlo run on a system is to have an average of at
least 40 rays per receiver data mesh bin. Thus, for 20 bins, you would need 800 rays
on the receiver to achieve uniform distribution. It is likely that you will need to
define more rays than 800 in a simulation in order to get 800 rays on the receiver.
When using simplified meshes as merit functions, you should check the before and
after performance of a design to verify that the changes correlate to the changes of
the merit function during optimization. As a design reaches its final performance
level, you will have to add rays to the simulation to reduce the noise floor so that
sufficient accuracy and mesh resolution are available for the optimizer to find the
best solution.

mengying97

2009-10-15 14:28

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tym1311	2009-10-16 23:40
一个项目多少钱。年薪大概多少？

杨惠尹	2011-06-30 20:32
可否把操作步骤或者参数分享一下

leeysoccer	2012-05-31 16:27
感謝分享

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