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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 {JCz^0DV  
    gzCMJ<3!D  
    Like LightTools, TracePro is an solid-modeling based illumination modeling program with a Windows-based interface and CAD import/export capability Ny,A#-?  
    0nq}SH  
    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 Tv,.  
    H9Q7({v  
    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 \.;ct  
    yb{{ z@  
    User Interface *RbOQ86vP  
    Must move/rotate objects by dialog box only <Z:8~:@  
    Default naming convention (for spheres/elements, etc) is confusing and ambiguous 4:eq{n  
    G q:4rG|  
    Modeling ddq 1NW  
    Most elements cannot be edited ciGpluQF  
      Must be deleted and recreated (including optical properties) ) ~)SCN>-  
    No unboolean capability d?&!y]RS#  
    Boolean limited to two objects at a time Prb_/B Dd  
    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 xngeV_xc2  
    e8ULf~I  
    Ray Trace F;Q_*0mIQ  
    No interactive (point & shoot) ray trace 2Z;`#{  
    No point sources; no volume sources *0&4mi8  
    Clipped Lambertian sources are difficult (LED or fiber output) BsK|:MM]  
    eC^0I78x  
    Analysis #7~tL23}]  
    No illumination error estimate %EVV-n@  
    Only 4 preset bins “available” TvWU[=4Yk  
    No 2D intensity distributions of full spheres pqH( Tbjq  
    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 (zS2Ndp  
    jiwpDB&[  
    LT has excellent design features vs. TracePro H b A3*2  
    Interactive ray trace @~$F;M=.*  
    Editable geometry J@ktj(  
    More powerful macro language in LT (VB/COM/Excel/etc. vs. Scheme) "GwWu-GS  
    qab) 1ft  
    TracePro features not fully or well implemented cyGN3t9`.  
    3D textures l$qStL*8O  
    Source definition to!mz\F  
    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 i O%Zd[  
    %;pD8WgJA  
    Recent LT features addressing TracePro competition b?Cmc  
    New LT 4.0 User Interface W>p\O9BG  
    Accelerated Ray Tracing (improved in 5.0) UOR _M5  
    AOI and Wavelength Scattering capabilities mD D4_E2*  
    Powerful 3D texture modeling for backlights (greatly expanded in v5.1 available 12/04) x1 ;rb8  
    %PQldPL8  
    TracePro features not in LT JdaFY+f :  
    Ray trace through GRIN material /e.FY9  
    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 q?;N7P  
    ?@Z7O.u  
    Some large CAD models consume 20-30% more RAM and more CPU time in TP vs. LT :0M' =~[  
    ]{K5zSK  
    TP CAD import repair feature much slower than LT (g%JK3  
    8s QQK.N(  
    Inability to edit properties of Booleaned objects in TP (easy and unlimited in LT) ltNuLZ  
    McT\ R{/  
    Luminance meter simulation is simple approximation in TP, much more flexible and accurate in LT Rz`@N`U  
    beJZ pg  
    Most operations in LT can be done by mouse, by numeric input, or any combination (fewer TP features are mouse-enabled) ..??O^   
    <8iYL`3  
    LT online help is extensive and useful, but very limited in TP H,(F1+~d  
    6b%`^B\  
    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 D4AEZgC F,  
    B1y<.1k  
    3D texture modeling more flexible and much faster to ray trace in LT vs. TP TRSOO}  
    jVX._bEGX  
    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 Bp &6x;MJf  
    B`LD7]ew  
    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 $RpF xi  
    d "2wO[  
    =nLO?qoe  
    Photorealistic rendering will be introduced in LightTools in 2005 s;s0}Td_1  
        Available now in TP, but feature is poorly implemented *:?QB8YJ  
    E yd$fcRK  
    Illumination optimization including special backlight design features will be introduced in 2005 \$'R+k-57;  
        Has been demonstrated in papers, ORA demos, and limited customer testing in 2004 uH $oGY  
        y*w"J3|29  
        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!