[讨论]LightToolsVsTracePro [复制链接]

  TracePro Overview QX
Q  
u}jrfKdE  
Like LightTools, TracePro is an solid-modeling based illumination modeling program with a Windows-based interface and CAD import/export capability +$pJ5+v  
YB!!/ SX4  
TracePro modeling capabilities are similar to LightTools but with significant weaknesses that make it harder to use and less flexible, and is especially limited in 3D texture modeling compared to LightTools ia{kab|_5  
:$H!@n*/R  
TracePro analysis features are similar to LightTools, but LightTools is much stronger as an interactive design AND analysis tool

TracePro Weaknesses 1L[S*X  
1D1b"o  
User Interface nR'#s%Kj  
Must move/rotate objects by dialog box only ,IjdO(?TC  
Default naming convention (for spheres/elements, etc) is confusing and ambiguous v]bAWo  
"{F;M{h$},  
Modeling *T4ge|zUc  
Most elements cannot be edited p.Y$A if.  
  Must be deleted and recreated (including optical properties) z\}!RBOq  
No unboolean capability 8~5|KO >F  
Boolean limited to two objects at a time Z{}+)Q*Q  
3D texture very limited vs. LT

TracePro Weaknesses \{>eOD_  
FOp_[rR   
Ray Trace "jGe^+9uT  
No interactive (point & shoot) ray trace ,k%8yK  
No point sources; no volume sources +{ab1))/  
Clipped Lambertian sources are difficult (LED or fiber output) >sV Bj(f  
VRhRwdC  
Analysis m|dF30~A  
No illumination error estimate Wf1-"Q  
Only 4 preset bins “available” h544dNo&  
No 2D intensity distributions of full spheres )/TVJAJ  
Limited ray sorting options

LT Strengths vs. TracePro !L$oAqW  
*<3iEeO/R  
LT has excellent design features vs. TracePro nP)-Y#`~7  
Interactive ray trace @}{VM)Fc+  
Editable geometry F\P!NSFZV  
More powerful macro language in LT (VB/COM/Excel/etc. vs. Scheme) ~p!QSRu~,b  
%>NRna  
TracePro features not fully or well implemented 9;:7e*x]lc  
3D textures n(# c`t*  
Source definition iy9VruT<x  
Many others

TracePro/LT Feature Checklist l?N`V2SuR  
Jz2q\42q  
Recent LT features addressing TracePro competition {kv
4g
\a;  
New LT 4.0 User Interface /3;=xZq  
Accelerated Ray Tracing (improved in 5.0) M,Po54u  
AOI and Wavelength Scattering capabilities B)(w%\M4^  
Powerful 3D texture modeling for backlights (greatly expanded in v5.1 available 12/04) "N]WL5$i  
:'TX"E!  
TracePro features not in LT +0)5H>h  
Ray trace through GRIN material ^&e;8d|f{  
Birefringent ray tracing

Misc. Comparisons, LT vs. TP iNMLYYq]l  
j=p|'`  
Some large CAD models consume 20-30% more RAM and more CPU time in TP vs. LT .jy)>"h0  
HXz iDnj  
TP CAD import repair feature much slower than LT S:DcfR=a  
aj+zmk~-  
Inability to edit properties of Booleaned objects in TP (easy and unlimited in LT) i,^>uf  
$4&8U~Zs  
Luminance meter simulation is simple approximation in TP, much more flexible and accurate in LT 4_Tb)?L+:  
4t"*)xy  
Most operations in LT can be done by mouse, by numeric input, or any combination (fewer TP features are mouse-enabled) _y.mpX&  
1"N/ZKF-x  
LT online help is extensive and useful, but very limited in TP R#rh  
6i55Ja  
ORA Tech Support for LT is by a dedicated team or experience illumination and optical engineers

3D Texture Comparisons 99=[>Ck)G  
yKel|vM#  
3D texture modeling more flexible and much faster to ray trace in LT vs. TP dpl"}+  
Z%(Df3~gmm  
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 f4qS OVv
 
UzP@{?  
When optimization is available in 2005, these parametric textures will make it much easier to design backlight systems

Coming Soon in LightTools W\ZV0T;<]  
Lcm~QF7cd  
Zi15wE  
Photorealistic rendering will be introduced in LightTools in 2005 +Px<DX+  
    Available now in TP, but feature is poorly implemented n:{-Vvt  
|~1rKzZwF  
Illumination optimization including special backlight design features will be introduced in 2005 OoA5!HEh  
    Has been demonstrated in papers, ORA demos, and limited customer testing in 2004 l[ZQ7$kL  
    D~t"9Z\  
    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！