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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 }URdoTOvb  
    0jlM~H  
    Like LightTools, TracePro is an solid-modeling based illumination modeling program with a Windows-based interface and CAD import/export capability C'|9nK$%  
    X:g5;NT  
    TracePro modeling capabilities are similar to LightTools but with significant weaknesses that make it harder to use and less flexible, and is especially limited in 3D texture modeling compared to LightTools m","m  
    *$-X&.h[  
    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 =;uMrb4  
    ,.QJ S6Yv  
    User Interface &=kv69v  
    Must move/rotate objects by dialog box only U_5`  
    Default naming convention (for spheres/elements, etc) is confusing and ambiguous `_OrBu[  
    "Esl I  
    Modeling #Z2 'Y[@.  
    Most elements cannot be edited Dc-K08c  
      Must be deleted and recreated (including optical properties) %T]^,y$n  
    No unboolean capability F&czD;F  
    Boolean limited to two objects at a time 37zB X~  
    3D texture very limited vs. LT
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    只看该作者 2楼 发表于: 2005-09-22
    TracePro Weaknesses O0qG 6a  
    r/!,((Z\  
    Ray Trace cWkg.ri-x  
    No interactive (point & shoot) ray trace 6AAvsu:  
    No point sources; no volume sources H:~p5t  
    Clipped Lambertian sources are difficult (LED or fiber output) -`k>(\Q< d  
    F0U %m   
    Analysis R xITMt  
    No illumination error estimate X#&5?oq`  
    Only 4 preset bins “available” Z\IM~-  
    No 2D intensity distributions of full spheres ISpV={$Zd  
    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 zVS{X=u  
    , lR(5ZI  
    LT has excellent design features vs. TracePro *m"9F'(Sd  
    Interactive ray trace gFTU9k<  
    Editable geometry {S=<(A @  
    More powerful macro language in LT (VB/COM/Excel/etc. vs. Scheme) utZI'5i  
    }gv'r ";  
    TracePro features not fully or well implemented ^@V*:n^  
    3D textures ,zoHmV1Wd+  
    Source definition .z,-ThTH@\  
    Many others
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    只看该作者 4楼 发表于: 2005-09-22
    TracePro/LT Feature Checklist NRx 7S 9W  
    $ Lstq_x+  
    Recent LT features addressing TracePro competition uBww  
    New LT 4.0 User Interface eV?%3h.   
    Accelerated Ray Tracing (improved in 5.0) j-1V,V=  
    AOI and Wavelength Scattering capabilities 1/9*c *w  
    Powerful 3D texture modeling for backlights (greatly expanded in v5.1 available 12/04) j_rO_m<8  
    0OHXg=  
    TracePro features not in LT vb~%u;zrC@  
    Ray trace through GRIN material @sn:%/x_  
    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 ]  & ]G  
    DL bP$&o  
    Some large CAD models consume 20-30% more RAM and more CPU time in TP vs. LT -I5]#%eX^  
    js"Yh  
    TP CAD import repair feature much slower than LT }` 3-  
    {O _X/y~  
    Inability to edit properties of Booleaned objects in TP (easy and unlimited in LT) k H65k (  
    -4QZ/*  
    Luminance meter simulation is simple approximation in TP, much more flexible and accurate in LT co\?SgE35  
    Mt4]\pMUb  
    Most operations in LT can be done by mouse, by numeric input, or any combination (fewer TP features are mouse-enabled) h{mzYy} b  
    l)$mpMgAD  
    LT online help is extensive and useful, but very limited in TP 5]*lH t  
    ByjfPb#  
    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 ^kNVQJiZyG  
    ;fqp!|J  
    3D texture modeling more flexible and much faster to ray trace in LT vs. TP R~oY R,L;  
    puMVvo  
    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 3\ajnd|  
    ?T73BL=  
    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 rs4:jS$)  
    Qq{tX  
    ;woK96"{t  
    Photorealistic rendering will be introduced in LightTools in 2005 ui8$F "I*  
        Available now in TP, but feature is poorly implemented EM<W+YU  
    0e>?!Z E  
    Illumination optimization including special backlight design features will be introduced in 2005 fPN/Mxu  
        Has been demonstrated in papers, ORA demos, and limited customer testing in 2004 d.ywH;  
        OtL~NTY  
        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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