[讨论]LightToolsVsTracePro [复制链接]

  TracePro Overview &{&lCBN  
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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 z1!ya#,$  
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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 L3q)j\ls  
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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 o~P8=1t  
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User Interface U YUIpe  
Must move/rotate objects by dialog box only Zpb3>0<R  
Default naming convention (for spheres/elements, etc) is confusing and ambiguous 4)Pt
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Modeling 58e{WC  
Most elements cannot be edited $6!`  
  Must be deleted and recreated (including optical properties) }WI24|`zM  
No unboolean capability .e.vh:Sz  
Boolean limited to two objects at a time I4|p;\`fK  
3D texture very limited vs. LT

TracePro Weaknesses {zF  
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Ray Trace k}T~N.0  
No interactive (point & shoot) ray trace 0l 3RwWj  
No point sources; no volume sources >^InNJd  
Clipped Lambertian sources are difficult (LED or fiber output) |?8CV\D!  
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Analysis H50nR$$<*Y  
No illumination error estimate eazP'(rc  
Only 4 preset bins “available” e:7aVOm  
No 2D intensity distributions of full spheres Q^39Wk@  
Limited ray sorting options

LT Strengths vs. TracePro fZ %ZV  
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LT has excellent design features vs. TracePro &P+cTN9)
  
Interactive ray trace `7 B [<  
Editable geometry KPO((G0&  
More powerful macro language in LT (VB/COM/Excel/etc. vs. Scheme) m",bfZ  
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TracePro features not fully or well implemented qob!!A14p  
3D textures cxv)LOl-  
Source definition G:
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Many others

TracePro/LT Feature Checklist iH$N HfH  
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Recent LT features addressing TracePro competition Ebk@x=
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New LT 4.0 User Interface .ev]tu2N  
Accelerated Ray Tracing (improved in 5.0) d)AkA\neWo  
AOI and Wavelength Scattering capabilities p,0 \NUC  
Powerful 3D texture modeling for backlights (greatly expanded in v5.1 available 12/04) D2mB4  
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TracePro features not in LT 2>r.[
  
Ray trace through GRIN material (#,.;Y  
Birefringent ray tracing

Misc. Comparisons, LT vs. TP 3_>1j  
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Some large CAD models consume 20-30% more RAM and more CPU time in TP vs. LT OH(+]%B78  
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TP CAD import repair feature much slower than LT FSB$D)4z>b  
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Inability to edit properties of Booleaned objects in TP (easy and unlimited in LT) ]aR4U`  
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Luminance meter simulation is simple approximation in TP, much more flexible and accurate in LT lyPXlt  
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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) GwV FD%  
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LT online help is extensive and useful, but very limited in TP {3Rax5Ty  
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ORA Tech Support for LT is by a dedicated team or experience illumination and optical engineers

3D Texture Comparisons 6.jZy~  
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3D texture modeling more flexible and much faster to ray trace in LT vs. TP ChGM7uu2  
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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 ?X1#b2s  
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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 ->8q, W2A  
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Photorealistic rendering will be introduced in LightTools in 2005 _vH!0@QFU  
    Available now in TP, but feature is poorly implemented SZ{cno1`  
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Illumination optimization including special backlight design features will be introduced in 2005 `uA&w}(G  
    Has been demonstrated in papers, ORA demos, and limited customer testing in 2004 g{hA,-3  
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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！