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    [讨论]LightToolsVsTracePro [复制链接]

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    离线shiloh
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    只看楼主 倒序阅读 楼主  发表于: 2005-09-22
      TracePro Overview  0dh#/  
    M*H< n*  
    Like LightTools, TracePro is an solid-modeling based illumination modeling program with a Windows-based interface and CAD import/export capability K6(.KEW  
    1uC;$Aj6:  
    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 &GU@8  
    +',^((o  
    TracePro analysis features are similar to LightTools, but LightTools is much stronger as an interactive design AND analysis tool
     
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    只看该作者 1楼 发表于: 2005-09-22
    TracePro Weaknesses L^jaBl  
    55,=[  
    User Interface rV~T>x  
    Must move/rotate objects by dialog box only ~BtKd*~*  
    Default naming convention (for spheres/elements, etc) is confusing and ambiguous Hy;901( %  
    e^Aa!  
    Modeling k%^<}s@  
    Most elements cannot be edited n_u`B|^Pj  
      Must be deleted and recreated (including optical properties) PC[cHgSYU  
    No unboolean capability []r T? -  
    Boolean limited to two objects at a time 9,w}Xe=C  
    3D texture very limited vs. LT
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    只看该作者 2楼 发表于: 2005-09-22
    TracePro Weaknesses k3C"  
    m,=)qex  
    Ray Trace Tt`L(oF  
    No interactive (point & shoot) ray trace ^t`f1rGR  
    No point sources; no volume sources z;U LQ  
    Clipped Lambertian sources are difficult (LED or fiber output) 8znj~7}#  
    0n\^$WY  
    Analysis Uld_X\;Q4  
    No illumination error estimate 'xQna+%h  
    Only 4 preset bins “available” R04.K !  
    No 2D intensity distributions of full spheres 'N*!>mZ<  
    Limited ray sorting options
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    只看该作者 3楼 发表于: 2005-09-22
    LT Strengths vs. TracePro yLjV[ qP  
    4 U}zJP(L  
    LT has excellent design features vs. TracePro %A8Pkr<&E  
    Interactive ray trace *Ao2j;  
    Editable geometry )\0Ug7]?  
    More powerful macro language in LT (VB/COM/Excel/etc. vs. Scheme) T!Xm")d  
    qbEKp HnB  
    TracePro features not fully or well implemented p(~Y" H  
    3D textures <%M\7NDWDA  
    Source definition (D0C#<4P  
    Many others
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    只看该作者 4楼 发表于: 2005-09-22
    TracePro/LT Feature Checklist /&*m1EN#o  
    K5 5} Wi  
    Recent LT features addressing TracePro competition ub[""M?  
    New LT 4.0 User Interface @YEw^J~  
    Accelerated Ray Tracing (improved in 5.0) "kcpA#uD|  
    AOI and Wavelength Scattering capabilities u+I3IdU3  
    Powerful 3D texture modeling for backlights (greatly expanded in v5.1 available 12/04) kX@ bv"i  
    {9h`$e=  
    TracePro features not in LT UN-T ^  
    Ray trace through GRIN material o9_(DJ<{  
    Birefringent ray tracing
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    只看该作者 5楼 发表于: 2005-09-22
    Misc. Comparisons, LT vs. TP ,:v.L}+Z  
    V<7R_}^_7  
    Some large CAD models consume 20-30% more RAM and more CPU time in TP vs. LT fKPiRlLS  
    ZmEG<T05  
    TP CAD import repair feature much slower than LT JN{<oxI  
    \?bwm&6+r  
    Inability to edit properties of Booleaned objects in TP (easy and unlimited in LT) ?l6>6a7  
    HF*j`}  
    Luminance meter simulation is simple approximation in TP, much more flexible and accurate in LT 1 ;cv-W  
    C_;HaQiu  
    Most operations in LT can be done by mouse, by numeric input, or any combination (fewer TP features are mouse-enabled) &Pmc"9Rl  
    :*mA,2s  
    LT online help is extensive and useful, but very limited in TP l84h%,  
    h g%@W  
    ORA Tech Support for LT is by a dedicated team or experience illumination and optical engineers
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    只看该作者 6楼 发表于: 2005-09-22
    3D Texture Comparisons 1Pud,!\%q  
    YWt"|  
    3D texture modeling more flexible and much faster to ray trace in LT vs. TP Jo6~r-  
    q`/amI0  
    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 Ft3N#!ubl  
    tb-OKZq  
    When optimization is available in 2005, these parametric textures will make it much easier to design backlight systems
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    只看该作者 7楼 发表于: 2005-09-22
    Coming Soon in LightTools |@o]X?^  
    <.PPs:{8#  
    w5dI k]T  
    Photorealistic rendering will be introduced in LightTools in 2005 09}f\/  
        Available now in TP, but feature is poorly implemented R$!;J?SS  
    K#9(|2 J%  
    Illumination optimization including special backlight design features will be introduced in 2005 bR>o!(M'Z\  
        Has been demonstrated in papers, ORA demos, and limited customer testing in 2004 $I}Hk^X  
        9#Aipu\  
        Is now being developed for maximum ease of use for typical users and applications       without user programming
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    只看该作者 8楼 发表于: 2005-09-29
    看来楼主对这两个软件深有了解吗！佩服佩服...
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    只看该作者 9楼 发表于: 2005-10-12
    Shiloh,你好！你的帖子非常好！谢谢！
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