[讨论]LightToolsVsTracePro [复制链接]

  TracePro Overview [3t N-aj[  
Crm](Z?  
Like LightTools, TracePro is an solid-modeling based illumination modeling program with a Windows-based interface and CAD import/export capability P,CJy|[L  
4kxy7]W  
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 XRJ<1w:  

a%Mbq;  
TracePro analysis features are similar to LightTools, but LightTools is much stronger as an interactive design AND analysis tool

TracePro Weaknesses 84e)huAs  
aNv6 "  
User Interface \P&'4y~PL  
Must move/rotate objects by dialog box only #++MoW}'g  
Default naming convention (for spheres/elements, etc) is confusing and ambiguous b0m1O.&I_  
q<,?:g$k  
Modeling nU[ROy5  
Most elements cannot be edited h9>~?1$lz  
  Must be deleted and recreated (including optical properties) YPf&y"E&H  
No unboolean capability ,UH`l./3DX  
Boolean limited to two objects at a time W{=>c/  
3D texture very limited vs. LT

TracePro Weaknesses TcO@q ]+S  
&q``CCOF&  
Ray Trace 5W 5\*L  
No interactive (point & shoot) ray trace
XZZ Ml  
No point sources; no volume sources Yt0 l'B%[u  
Clipped Lambertian sources are difficult (LED or fiber output) CuT[V?^iD  
Uu }ai."iB  
Analysis S>*i^If  
No illumination error estimate jW?.>(  
Only 4 preset bins “available” SobK<6  
No 2D intensity distributions of full spheres d[-w&[iy  
Limited ray sorting options

LT Strengths vs. TracePro n8iejdA'  
Ur?a%]  
LT has excellent design features vs. TracePro L$i&>cF\_>  
Interactive ray trace w<-CKM3qe  
Editable geometry /3'-+bp^=  
More powerful macro language in LT (VB/COM/Excel/etc. vs. Scheme) G/N'8Q)  
vT\`0di~  
TracePro features not fully or well implemented ]*ZL>fuD|  
3D textures 42ttmN1F  
Source definition i/-Xpj]Zf  
Many others

TracePro/LT Feature Checklist 7MOjZD4?  
MftX~+  
Recent LT features addressing TracePro competition efl6U/'Ij  
New LT 4.0 User Interface +>44'M^Z|(  
Accelerated Ray Tracing (improved in 5.0) zRL[.O9  
AOI and Wavelength Scattering capabilities J+Q ;'J  
Powerful 3D texture modeling for backlights (greatly expanded in v5.1 available 12/04) #wk'&XsC#z  
-81usu&NH  
TracePro features not in LT jiC;*]n  
Ray trace through GRIN material 8e[kE>tS._  
Birefringent ray tracing

Misc. Comparisons, LT vs. TP %kKe"$)0  
H}dsd=yO  
Some large CAD models consume 20-30% more RAM and more CPU time in TP vs. LT B&O931E7  
FxTOc@<  
TP CAD import repair feature much slower than LT CJ {?9z@$.  
hz>&E,<8q  
Inability to edit properties of Booleaned objects in TP (easy and unlimited in LT) s'tmak-}|  
R1&(VK{  
Luminance meter simulation is simple approximation in TP, much more flexible and accurate in LT 6wqq"6w  
O)Nj'Hcu  
Most operations in LT can be done by mouse, by numeric input, or any combination (fewer TP features are mouse-enabled) Tm.(gK  
*G.6\  
LT online help is extensive and useful, but very limited in TP z"Gk K
T  
BN|+2D+S  
ORA Tech Support for LT is by a dedicated team or experience illumination and optical engineers

3D Texture Comparisons <q~&g &&+  
=L 7scv%i  
3D texture modeling more flexible and much faster to ray trace in LT vs. TP 8]YFlW9  
"6gu6f  
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 H8`K?SXU  
V+nqQ~pJ&  
When optimization is available in 2005, these parametric textures will make it much easier to design backlight systems

Coming Soon in LightTools  =SRp  
c#<v:b  
3G~ T_J&  
Photorealistic rendering will be introduced in LightTools in 2005 _WVeb}  
    Available now in TP, but feature is poorly implemented >Yl?i&3n  
9} :n  
Illumination optimization including special backlight design features will be introduced in 2005 ;4z6="<Y  
    Has been demonstrated in papers, ORA demos, and limited customer testing in 2004 l-Xxur5M'  
    W=M]1hy  
    Is now being developed for maximum ease of use for typical users and applications       without user programming

看来楼主对这两个软件深有了解吗！佩服佩服...

Shiloh,你好！你的帖子非常好！谢谢！