[讨论]LightToolsVsTracePro [复制链接]

  TracePro Overview *UVjN_na5  
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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 BcV;EEi  
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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  |u8hxa  
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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 <x@\3{{U  
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User Interface z79L2lJn  
Must move/rotate objects by dialog box only p}uTqI  
Default naming convention (for spheres/elements, etc) is confusing and ambiguous Y1A
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Modeling @t`|w.]ml  
Most elements cannot be edited z.23i^Q  
  Must be deleted and recreated (including optical properties) @%J?[PG  
No unboolean capability 9m56oT'U{  
Boolean limited to two objects at a time [ d<|Cde  
3D texture very limited vs. LT

TracePro Weaknesses Fy-nV%P  
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Ray Trace ;3\Fb3d  
No interactive (point & shoot) ray trace g2C-)*'{yh  
No point sources; no volume sources tZ>>aiI3  
Clipped Lambertian sources are difficult (LED or fiber output) l>"gO9j  
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Analysis L
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No illumination error estimate =B1t?("  
Only 4 preset bins “available” 5`oor86  
No 2D intensity distributions of full spheres Fhn883  
Limited ray sorting options

LT Strengths vs. TracePro F)e*w:D  
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LT has excellent design features vs. TracePro oZ6xHdPc4  
Interactive ray trace pRc(>P3;  
Editable geometry 6z%3l7#7Yi  
More powerful macro language in LT (VB/COM/Excel/etc. vs. Scheme) r_)-NOp  
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TracePro features not fully or well implemented 9][Mw[k>  
3D textures 8f^URN<x  
Source definition i04Sf^  
Many others

TracePro/LT Feature Checklist (-dJ0!  
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Recent LT features addressing TracePro competition fil6w</L  
New LT 4.0 User Interface Arp4$h  
Accelerated Ray Tracing (improved in 5.0) DA@ { d-A  
AOI and Wavelength Scattering capabilities 8QC:ro  
Powerful 3D texture modeling for backlights (greatly expanded in v5.1 available 12/04) W]Ph:O^5c  
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TracePro features not in LT L6 _Sc-sU  
Ray trace through GRIN material T82=R@7  
Birefringent ray tracing

Misc. Comparisons, LT vs. TP &OzJ^G\o  
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Some large CAD models consume 20-30% more RAM and more CPU time in TP vs. LT aO<d`DTyJ  
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TP CAD import repair feature much slower than LT ~Q%QA._R?  
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Inability to edit properties of Booleaned objects in TP (easy and unlimited in LT) xq~=T:>/A  
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Luminance meter simulation is simple approximation in TP, much more flexible and accurate in LT W\KZFrV@  
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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) v#/,,)m  
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LT online help is extensive and useful, but very limited in TP ,~4(td+R7  
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ORA Tech Support for LT is by a dedicated team or experience illumination and optical engineers

3D Texture Comparisons UNAuF8>K  
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3D texture modeling more flexible and much faster to ray trace in LT vs. TP &WRoNc  
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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 TX+t   
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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 SwL\=nq+~  
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Photorealistic rendering will be introduced in LightTools in 2005 nbRg<@  
    Available now in TP, but feature is poorly implemented >L(F{c:  
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Illumination optimization including special backlight design features will be introduced in 2005 @]7\.>)  
    Has been demonstrated in papers, ORA demos, and limited customer testing in 2004 ejQCMG7  
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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！