[讨论]LightToolsVsTracePro [复制链接]

  TracePro Overview =gO4B-[  
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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 4R9y~~+  
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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 OJ<V<=MYZ  
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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 > |(L3UA9  
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User Interface T0%l$#6v  
Must move/rotate objects by dialog box only ^8 cq qu  
Default naming convention (for spheres/elements, etc) is confusing and ambiguous mh,a}bX{  
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Modeling [(Ihue  
Most elements cannot be edited f_|=EQ  
  Must be deleted and recreated (including optical properties) 4.q^r]m*  
No unboolean capability S.*LsrSV  
Boolean limited to two objects at a time !OMl-:KUzE  
3D texture very limited vs. LT

TracePro Weaknesses a[NR%Xq
  
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Ray Trace V6fJaZ  
No interactive (point & shoot) ray trace O+ xzM[[  
No point sources; no volume sources ]+T$D  
Clipped Lambertian sources are difficult (LED or fiber output) =!DpWVsQ  
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Analysis x,TnYqT^  
No illumination error estimate ) RNB;K~s9  
Only 4 preset bins “available” \qtdbi|Y  
No 2D intensity distributions of full spheres G@scz!Nt  
Limited ray sorting options

LT Strengths vs. TracePro R_Z9aQ  

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LT has excellent design features vs. TracePro XUTsW,WC  
Interactive ray trace aq- |  
Editable geometry ?vQ:z{BO  
More powerful macro language in LT (VB/COM/Excel/etc. vs. Scheme) ?b\oM v5y  
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TracePro features not fully or well implemented @x_0AkZU  
3D textures ku
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Source definition iKG,"  
Many others

TracePro/LT Feature Checklist  7MQxW<0  
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Recent LT features addressing TracePro competition 0U?(EJ  
New LT 4.0 User Interface aev(CY,z  
Accelerated Ray Tracing (improved in 5.0) |BXp`  
AOI and Wavelength Scattering capabilities DSlO.)dHu  
Powerful 3D texture modeling for backlights (greatly expanded in v5.1 available 12/04) /4KHf3Nr  
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TracePro features not in LT Z:YgG.z"  
Ray trace through GRIN material ^#U[v7y  
Birefringent ray tracing

Misc. Comparisons, LT vs. TP ?RS4oJz,5g  
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Some large CAD models consume 20-30% more RAM and more CPU time in TP vs. LT K$O2 Fq@y  
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TP CAD import repair feature much slower than LT v>_83P`  
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Inability to edit properties of Booleaned objects in TP (easy and unlimited in LT) z>)lp$  
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Luminance meter simulation is simple approximation in TP, much more flexible and accurate in LT /#zs  
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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) dFmpx%+p  
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LT online help is extensive and useful, but very limited in TP x<PJ5G L  
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ORA Tech Support for LT is by a dedicated team or experience illumination and optical engineers

3D Texture Comparisons n%Oq"`w4  
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3D texture modeling more flexible and much faster to ray trace in LT vs. TP @FF80U4'  
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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 q*kLi~Oe  
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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 BqUwvB4  
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Photorealistic rendering will be introduced in LightTools in 2005 W }v ,6Oe  
    Available now in TP, but feature is poorly implemented 'p@m`)Z  
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Illumination optimization including special backlight design features will be introduced in 2005 <p-@XzyE  
    Has been demonstrated in papers, ORA demos, and limited customer testing in 2004 .1z=VLKF'  
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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！