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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 ;"d,~nLn  
    kO..~@ aY  
    Like LightTools, TracePro is an solid-modeling based illumination modeling program with a Windows-based interface and CAD import/export capability &AQg'|  
    k7yv>iN  
    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 ;B|^2i1Wi  
    >}dTO/  
    TracePro analysis features are similar to LightTools, but LightTools is much stronger as an interactive design AND analysis tool
     
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    离线shiloh
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    只看该作者 1楼 发表于: 2005-09-22
    TracePro Weaknesses :"OZc7 ~  
     95.qAFB1  
    User Interface 7gVh!rm  
    Must move/rotate objects by dialog box only iXUWIgr  
    Default naming convention (for spheres/elements, etc) is confusing and ambiguous g:3d<CS  
    P[Y{LKAbb  
    Modeling iwG>]:K3  
    Most elements cannot be edited 86;+r'3p.  
      Must be deleted and recreated (including optical properties) u"`5  
    No unboolean capability N `,7FI}  
    Boolean limited to two objects at a time qy7hkq.uX  
    3D texture very limited vs. LT
    离线shiloh
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    只看该作者 2楼 发表于: 2005-09-22
    TracePro Weaknesses B,~f "  
    [n!$D(|"!V  
    Ray Trace 8fJR{jD(s  
    No interactive (point & shoot) ray trace ]%gp?9wy  
    No point sources; no volume sources ;Ri 3#*a=  
    Clipped Lambertian sources are difficult (LED or fiber output) g8%MOhg  
    #5'c\\?Q  
    Analysis :.C+?$iuX  
    No illumination error estimate r5f^WZ$-  
    Only 4 preset bins “available” >|l;*Kw,/P  
    No 2D intensity distributions of full spheres IY];Ss&i  
    Limited ray sorting options
    离线shiloh
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    只看该作者 3楼 发表于: 2005-09-22
    LT Strengths vs. TracePro |?\gEY-Se  
    * <B)Z  
    LT has excellent design features vs. TracePro 5."5IjZu  
    Interactive ray trace >nc4v6s  
    Editable geometry whV&qe;sw  
    More powerful macro language in LT (VB/COM/Excel/etc. vs. Scheme) Q{H17]W  
    }*?yHJ3  
    TracePro features not fully or well implemented k%{ l4  
    3D textures aXRv}WO$>k  
    Source definition m,\i  
    Many others
    离线shiloh
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    只看该作者 4楼 发表于: 2005-09-22
    TracePro/LT Feature Checklist 9 TqoLX  
    fr8Xoa%1=  
    Recent LT features addressing TracePro competition pI  &o?n  
    New LT 4.0 User Interface `Ac:f5a  
    Accelerated Ray Tracing (improved in 5.0) LEWa6'0rq  
    AOI and Wavelength Scattering capabilities 0Xp nbB~~I  
    Powerful 3D texture modeling for backlights (greatly expanded in v5.1 available 12/04) cN62M=**  
    - o4@#p>>  
    TracePro features not in LT xcHen/4X  
    Ray trace through GRIN material  ,Qat  
    Birefringent ray tracing
    离线shiloh
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    只看该作者 5楼 发表于: 2005-09-22
    Misc. Comparisons, LT vs. TP &j3` )N  
    a|U}Ammr  
    Some large CAD models consume 20-30% more RAM and more CPU time in TP vs. LT y7>iz6N  
    3Hs$]nQ_X  
    TP CAD import repair feature much slower than LT oBb?"2~9  
    \$j^_C>  
    Inability to edit properties of Booleaned objects in TP (easy and unlimited in LT) Z*h43  
    5bXHz5i  
    Luminance meter simulation is simple approximation in TP, much more flexible and accurate in LT )^&,Dj   
    A1Ka(3"  
    Most operations in LT can be done by mouse, by numeric input, or any combination (fewer TP features are mouse-enabled) e$HQuA~Q;  
    4b]_ #7Qm  
    LT online help is extensive and useful, but very limited in TP JfbKf~g  
    %Mh Q  
    ORA Tech Support for LT is by a dedicated team or experience illumination and optical engineers
    离线shiloh
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    只看该作者 6楼 发表于: 2005-09-22
    3D Texture Comparisons W,DZ ;). %  
    NIaF5z  
    3D texture modeling more flexible and much faster to ray trace in LT vs. TP 3B;}j/h2  
    @^'$r&M  
    LT (5.1) has flexible features to parametrically vary all 3D texture features (spacing, size, angles, depth, etc.) by equation or by direct “placement lists” imported from spreadsheet or other software ALfiR(!  
    MA$Xv`6I\  
    When optimization is available in 2005, these parametric textures will make it much easier to design backlight systems
    离线shiloh
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    只看该作者 7楼 发表于: 2005-09-22
    Coming Soon in LightTools Ge^Qar  
    9qr UM`z$g  
    Fom>'g*  
    Photorealistic rendering will be introduced in LightTools in 2005 c yP,[?N  
        Available now in TP, but feature is poorly implemented 0vn[a,W<A  
    0aogBg_@K  
    Illumination optimization including special backlight design features will be introduced in 2005 9#Bx]wy  
        Has been demonstrated in papers, ORA demos, and limited customer testing in 2004 8aZ$5^z  
        t7bqk!6hM\  
        Is now being developed for maximum ease of use for typical users and applications       without user programming
    离线结构设计
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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...
    离线robin
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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!