[讨论]LightToolsVsTracePro [复制链接]

  TracePro Overview A_ftf7,  
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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 Gy3t   
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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 `1hM3N.nO  
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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 i:@n6GW+iw  
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User Interface jx?"m=`s:  
Must move/rotate objects by dialog box only Z7Gl^4zn  
Default naming convention (for spheres/elements, etc) is confusing and ambiguous 5TB==Fj ?  
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Modeling Pi!3wy  
Most elements cannot be edited Z'V"nhL  
  Must be deleted and recreated (including optical properties) Bm\OH#  
No unboolean capability kvoEnwBe_  
Boolean limited to two objects at a time iDdmr32E  
3D texture very limited vs. LT

TracePro Weaknesses t)62_nu  
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Ray Trace 6tDCaB  
No interactive (point & shoot) ray trace ss4<s 5:y  
No point sources; no volume sources c9<&+  
Clipped Lambertian sources are difficult (LED or fiber output) b- FJMY  
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Analysis 4hLv"R.  
No illumination error estimate D,<#pNO_  
Only 4 preset bins “available” )`V__^  
No 2D intensity distributions of full spheres ywl7bU-f  
Limited ray sorting options

LT Strengths vs. TracePro wRLj>
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LT has excellent design features vs. TracePro w*-1*XNA  
Interactive ray trace : ~R:[T2P  
Editable geometry A>OGU ^  
More powerful macro language in LT (VB/COM/Excel/etc. vs. Scheme) HbUadPr  
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TracePro features not fully or well implemented "p[FFg  
3D textures ,2y" \_  
Source definition aDr
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Many others

TracePro/LT Feature Checklist Om/mpU/U  

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Recent LT features addressing TracePro competition $[NC$*N7  
New LT 4.0 User Interface ue~?xmZg  
Accelerated Ray Tracing (improved in 5.0) "k%B;!We)  
AOI and Wavelength Scattering capabilities /t<C_lLM  
Powerful 3D texture modeling for backlights (greatly expanded in v5.1 available 12/04) F]"Hs>  
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TracePro features not in LT ncy?w e  
Ray trace through GRIN material Z%uDz3I\Q"  
Birefringent ray tracing

Misc. Comparisons, LT vs. TP *Pmk1h2  
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Some large CAD models consume 20-30% more RAM and more CPU time in TP vs. LT t'F_1P^*
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TP CAD import repair feature much slower than LT KJf~9w9U  
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Inability to edit properties of Booleaned objects in TP (easy and unlimited in LT) .vbUv3NI  
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Luminance meter simulation is simple approximation in TP, much more flexible and accurate in LT )Fo1[:_B'  
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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) I}@m6D|\  
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LT online help is extensive and useful, but very limited in TP `PY>p!E  
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ORA Tech Support for LT is by a dedicated team or experience illumination and optical engineers

3D Texture Comparisons SuHv{u45  
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3D texture modeling more flexible and much faster to ray trace in LT vs. TP ;{Sgv^A  
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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 xGzp
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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 f.o,VVYi  
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Photorealistic rendering will be introduced in LightTools in 2005 [;Q8xvVZ'  
    Available now in TP, but feature is poorly implemented P`^{dH$P  
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Illumination optimization including special backlight design features will be introduced in 2005 bs%lMa.o  
    Has been demonstrated in papers, ORA demos, and limited customer testing in 2004 ;gh#8JkI  
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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！