[讨论]LightToolsVsTracePro [复制链接]

  TracePro Overview I*:qGr+ WJ  
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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 3Zaq#uA  
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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 qJX+[PJ  
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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 tKG;k"wk  
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User Interface nIV.
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Must move/rotate objects by dialog box only h9<mThvgn  
Default naming convention (for spheres/elements, etc) is confusing and ambiguous %\X P:  
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Modeling W$JY M3!  
Most elements cannot be edited S_T{L  
  Must be deleted and recreated (including optical properties) !B [1zE  
No unboolean capability P1)* q0  
Boolean limited to two objects at a time HUU >hq9  
3D texture very limited vs. LT

TracePro Weaknesses mD D4_E2*  
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Ray Trace oF%^QT"R  
No interactive (point & shoot) ray trace H_%d3 RI  
No point sources; no volume sources ee&nU(pK  
Clipped Lambertian sources are difficult (LED or fiber output) ur/Oc24i1n  
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Analysis 0M#N=%31  
No illumination error estimate :kWZSN8.D  
Only 4 preset bins “available” vQ:x%=]  
No 2D intensity distributions of full spheres -@%t"8  
Limited ray sorting options

LT Strengths vs. TracePro &q4ox71  
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LT has excellent design features vs. TracePro Rz`@N`U  
Interactive ray trace beJZpg  
Editable geometry ijvNmn1k  
More powerful macro language in LT (VB/COM/Excel/etc. vs. Scheme) @ \!KF*v  
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TracePro features not fully or well implemented i'M^ez)u  
3D textures jmR
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Source definition gb]hOB7g  
Many others

TracePro/LT Feature Checklist NV&;e[z  
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Recent LT features addressing TracePro competition |)^clkuGX  
New LT 4.0 User Interface HMF8;,<_w?  
Accelerated Ray Tracing (improved in 5.0) ;JAK[o8i  
AOI and Wavelength Scattering capabilities |$M@09,F"  
Powerful 3D texture modeling for backlights (greatly expanded in v5.1 available 12/04) ~;}\zKQKE  
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TracePro features not in LT *]Fg
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Ray trace through GRIN material O-i4_YdVt  
Birefringent ray tracing

Misc. Comparisons, LT vs. TP @o`sf-8x  
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Some large CAD models consume 20-30% more RAM and more CPU time in TP vs. LT uH$oGY  
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TP CAD import repair feature much slower than LT pV8[l)J  
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Inability to edit properties of Booleaned objects in TP (easy and unlimited in LT) P=2wkzeJj  
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Luminance meter simulation is simple approximation in TP, much more flexible and accurate in LT 6j_ 678  
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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) ya#RII']  
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LT online help is extensive and useful, but very limited in TP J)_>%.
 
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ORA Tech Support for LT is by a dedicated team or experience illumination and optical engineers

3D Texture Comparisons  %W(^6p!  

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3D texture modeling more flexible and much faster to ray trace in LT vs. TP 2H6:np|O  
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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 UnP|]]o:I  
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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  e#1.T  
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Photorealistic rendering will be introduced in LightTools in 2005 vG2.]?  
    Available now in TP, but feature is poorly implemented RJ@\W=aZ  
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Illumination optimization including special backlight design features will be introduced in 2005 #,TELzUVE  
    Has been demonstrated in papers, ORA demos, and limited customer testing in 2004 Vu%n&uF  
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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！