[讨论]LightToolsVsTracePro [复制链接]

  TracePro Overview Gr5`1`8|  
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Like LightTools, TracePro is an solid-modeling based illumination modeling program with a Windows-based interface and CAD import/export capability (
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TracePro modeling capabilities are similar to LightTools but with significant weaknesses that make it harder to use and less flexible, and is especially limited in 3D texture modeling compared to LightTools M!N` Orz  
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TracePro analysis features are similar to LightTools, but LightTools is much stronger as an interactive design AND analysis tool

TracePro Weaknesses `[WyHO|8  
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User Interface 89zuL18V  
Must move/rotate objects by dialog box only ^DBD63N"  
Default naming convention (for spheres/elements, etc) is confusing and ambiguous q}>M& *  

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Modeling sf Dg/ a  
Most elements cannot be edited C@%iQ]=  
  Must be deleted and recreated (including optical properties) o;3j:#3 |  
No unboolean capability SK's!m:r=  
Boolean limited to two objects at a time "E.\6sC  
3D texture very limited vs. LT

TracePro Weaknesses /x$}D=(CZ  
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Ray Trace a;%I\w;2  
No interactive (point & shoot) ray trace d>UnJ)V}  
No point sources; no volume sources 8+9\7*  
Clipped Lambertian sources are difficult (LED or fiber output) 5i6VZv  
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Analysis \H^;'agA  
No illumination error estimate $Jcq7E~  
Only 4 preset bins “available” \fTTkpM  
No 2D intensity distributions of full spheres 6VC-KY  
Limited ray sorting options

LT Strengths vs. TracePro 0 <
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LT has excellent design features vs. TracePro d,UCH  
Interactive ray trace M_Bu,<q^  
Editable geometry ^+wk  
More powerful macro language in LT (VB/COM/Excel/etc. vs. Scheme) opXDm\  
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TracePro features not fully or well implemented h(nj,X+  
3D textures Y3k[~A7X  
Source definition ;`+`#h3-V  
Many others

TracePro/LT Feature Checklist tF^g<)S;t  

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Recent LT features addressing TracePro competition o5SQ1;`   
New LT 4.0 User Interface ya.n'X14  
Accelerated Ray Tracing (improved in 5.0) d*2u}1Jo8  
AOI and Wavelength Scattering capabilities P_&p=${  
Powerful 3D texture modeling for backlights (greatly expanded in v5.1 available 12/04) JGis"e  
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TracePro features not in LT RJhK$\  
Ray trace through GRIN material wx*1*KZ  
Birefringent ray tracing

Misc. Comparisons, LT vs. TP /P:EWUf'  
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Some large CAD models consume 20-30% more RAM and more CPU time in TP vs. LT :^#vxdIC?  
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TP CAD import repair feature much slower than LT UFw](%=&M  
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Inability to edit properties of Booleaned objects in TP (easy and unlimited in LT) 
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Luminance meter simulation is simple approximation in TP, much more flexible and accurate in LT |55dbL$w  
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Most operations in LT can be done by mouse, by numeric input, or any combination (fewer TP features are mouse-enabled) T<yb#ak  
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LT online help is extensive and useful, but very limited in TP m*Cu-6&qd  
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ORA Tech Support for LT is by a dedicated team or experience illumination and optical engineers

3D Texture Comparisons x+7*ADKb  
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3D texture modeling more flexible and much faster to ray trace in LT vs. TP prrT:Y  
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LT (5.1) has flexible features to parametrically vary all 3D texture features (spacing, size, angles, depth, etc.) by equation or by direct “placement lists” imported from spreadsheet or other software X{Zm9T  
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When optimization is available in 2005, these parametric textures will make it much easier to design backlight systems

Coming Soon in LightTools efOjTA%  
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Photorealistic rendering will be introduced in LightTools in 2005 8ObeiVXf)  
    Available now in TP, but feature is poorly implemented tC)6  
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Illumination optimization including special backlight design features will be introduced in 2005 G%{0i20_  
    Has been demonstrated in papers, ORA demos, and limited customer testing in 2004 D$q'FZH  
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    Is now being developed for maximum ease of use for typical users and applications       without user programming

看来楼主对这两个软件深有了解吗！佩服佩服...

Shiloh,你好！你的帖子非常好！谢谢！