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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 x={t}qDS8  
    @iB**zR/  
    Like LightTools, TracePro is an solid-modeling based illumination modeling program with a Windows-based interface and CAD import/export capability T[a1S?_*T  
    ?15k~1nA  
    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 $>v^%E;Y4  
    //@_`.  
    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 7}Z.g9<  
    [UNfft=K3P  
    User Interface GiHJr1  
    Must move/rotate objects by dialog box only @A!Ef=R  
    Default naming convention (for spheres/elements, etc) is confusing and ambiguous i051qpj  
    pTUsdao^,  
    Modeling 9Q=g]int u  
    Most elements cannot be edited GW'=/ z7  
      Must be deleted and recreated (including optical properties) N rVQK}%K  
    No unboolean capability tnqW!F~  
    Boolean limited to two objects at a time o]n5pZ\\W<  
    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 GY,@jp|R  
    Y~=5umNSX  
    Ray Trace %P_\7YBC>  
    No interactive (point & shoot) ray trace &IT'%*Y:V  
    No point sources; no volume sources {xEX_$nv  
    Clipped Lambertian sources are difficult (LED or fiber output) jR@-h"2*A  
    1}S_CR4XBs  
    Analysis s`C#=l4  
    No illumination error estimate  i2)SSQ  
    Only 4 preset bins “available” SZG8@ !_}7  
    No 2D intensity distributions of full spheres 9<7Q{  
    Limited ray sorting options
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    只看该作者 3楼 发表于: 2005-09-22
    LT Strengths vs. TracePro 2yq.<Wz<  
    6J%SkuxR  
    LT has excellent design features vs. TracePro b@1QE  
    Interactive ray trace DX$`\PA  
    Editable geometry h^hEyrJw  
    More powerful macro language in LT (VB/COM/Excel/etc. vs. Scheme) ]-x#zp;=  
    9-Ib+/R0  
    TracePro features not fully or well implemented % Pa-fee  
    3D textures aE,x>I 7 D  
    Source definition cR@z^  
    Many others
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    只看该作者 4楼 发表于: 2005-09-22
    TracePro/LT Feature Checklist B.Xm*adBT  
    <mm}IdH  
    Recent LT features addressing TracePro competition N_gjOE`x5  
    New LT 4.0 User Interface VwC, +B  
    Accelerated Ray Tracing (improved in 5.0) m};_\Db`  
    AOI and Wavelength Scattering capabilities yaX,s 4p  
    Powerful 3D texture modeling for backlights (greatly expanded in v5.1 available 12/04) =<e#  2  
    "{V,(w8Dt  
    TracePro features not in LT ,E>VYkoA  
    Ray trace through GRIN material l^Lg"m2  
    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 d!gm4hQhl  
    oO UVU}H  
    Some large CAD models consume 20-30% more RAM and more CPU time in TP vs. LT Z].>U!7W  
     (K?[gI  
    TP CAD import repair feature much slower than LT s-C.+9  
    huq6rA/i  
    Inability to edit properties of Booleaned objects in TP (easy and unlimited in LT) Yd<~]aXM   
    g{D&|qWj  
    Luminance meter simulation is simple approximation in TP, much more flexible and accurate in LT lN1zfM  
    7=<PVJ*/  
    Most operations in LT can be done by mouse, by numeric input, or any combination (fewer TP features are mouse-enabled) D8dTw{C  
    VJ$C)0xQA  
    LT online help is extensive and useful, but very limited in TP aIfog+Lp  
    {:oZ&y)Ac  
    ORA Tech Support for LT is by a dedicated team or experience illumination and optical engineers
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    只看该作者 6楼 发表于: 2005-09-22
    3D Texture Comparisons c:$:j,i}  
    \E#r[9F{  
    3D texture modeling more flexible and much faster to ray trace in LT vs. TP 4sJx_Qi  
    ,v6Jr3  
    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 Wh<lmC50(  
    5Px.G*  
    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 1uH\Bn]p?  
    }3*h`(Bv7  
    M\<!m^~  
    Photorealistic rendering will be introduced in LightTools in 2005 |knP  
        Available now in TP, but feature is poorly implemented s<dD>SU  
    /Z% ?;  
    Illumination optimization including special backlight design features will be introduced in 2005 :E^B~ OuL  
        Has been demonstrated in papers, ORA demos, and limited customer testing in 2004 .ClCP?HG  
        5\'%zZ,l  
        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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