[讨论]LightToolsVsTracePro [复制链接]

  TracePro Overview {Kz
,_bo  
6SSDc/  
Like LightTools, TracePro is an solid-modeling based illumination modeling program with a Windows-based interface and CAD import/export capability sV^:
u^  
jG5HW*>k0  
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 4w4B\Na>l  
gEASYIQ  
TracePro analysis features are similar to LightTools, but LightTools is much stronger as an interactive design AND analysis tool

TracePro Weaknesses 8~sP{V%  
&y[NCAeA  
User Interface M>Q]{/V7T  
Must move/rotate objects by dialog box only ==[,;g
x  
Default naming convention (for spheres/elements, etc) is confusing and ambiguous 6|TSH$w_  
1GY2aZ@  
Modeling {K(mfTqm  
Most elements cannot be edited `]Bb0h1![  
  Must be deleted and recreated (including optical properties) 98m|&7  
No unboolean capability K%^n.  
Boolean limited to two objects at a time (!j#u)O  
3D texture very limited vs. LT

TracePro Weaknesses h}bfZL  
1uF$$E6[  
Ray Trace cby#  
No interactive (point & shoot) ray trace ?ukw6T  
No point sources; no volume sources rIb+c=|F  
Clipped Lambertian sources are difficult (LED or fiber output) Tt;F-  
Lu.zc='\  
Analysis _z5/&tm_H  
No illumination error estimate c]=2>ov)hR  
Only 4 preset bins “available” f|RmAP;X,  
No 2D intensity distributions of full spheres }xZi Ct  
Limited ray sorting options

LT Strengths vs. TracePro -(VJ,)8t2  
>mGH4{H  
LT has excellent design features vs. TracePro Ts iJK  
Interactive ray trace ez4!5&TzRm  
Editable geometry _ _Of0<  
More powerful macro language in LT (VB/COM/Excel/etc. vs. Scheme) 1/_g36\l$  
z^Q'GBoBA  
TracePro features not fully or well implemented Xxq
GsGx4  
3D textures 'r;mm^cS?  
Source definition "W<Y1$Y=Y  
Many others

TracePro/LT Feature Checklist -Cf)`/  
3bEcKA_z(  
Recent LT features addressing TracePro competition ~uQ*u.wi  
New LT 4.0 User Interface =~^b  
Accelerated Ray Tracing (improved in 5.0) ]>3Y~KH(  
AOI and Wavelength Scattering capabilities [-~pDkf:  
Powerful 3D texture modeling for backlights (greatly expanded in v5.1 available 12/04) 43=v2P0=Tj  
kR]P/4r  
TracePro features not in LT 8
NN+Z<  
Ray trace through GRIN material Xfiwblg  
Birefringent ray tracing

Misc. Comparisons, LT vs. TP mxNd
  
*>fr'jj1$  
Some large CAD models consume 20-30% more RAM and more CPU time in TP vs. LT /VR~E'Cy%  
1M ?BSH{  
TP CAD import repair feature much slower than LT r. 82RoG?G  
MU<(O}  
Inability to edit properties of Booleaned objects in TP (easy and unlimited in LT) $4bc!  
_!xrBdaJ  
Luminance meter simulation is simple approximation in TP, much more flexible and accurate in LT ^WA7X9ed  
@]uqC~a^  
Most operations in LT can be done by mouse, by numeric input, or any combination (fewer TP features are mouse-enabled) R%r bysP  
]#
0 (  
LT online help is extensive and useful, but very limited in TP WjD885Xo  
OB>Hiy   
ORA Tech Support for LT is by a dedicated team or experience illumination and optical engineers

3D Texture Comparisons `_/bg(E  
N0 {e7M  
3D texture modeling more flexible and much faster to ray trace in LT vs. TP cILS  
+n^M+ea;  
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 Gxr\a2Z&r%  
|q`NJ  
When optimization is available in 2005, these parametric textures will make it much easier to design backlight systems

Coming Soon in LightTools ?N kKDvv  
RZ6y5  
*g5bdQ:Av~  
Photorealistic rendering will be introduced in LightTools in 2005 /x3*oO1  
    Available now in TP, but feature is poorly implemented 0C4eer+D  
uq5?t  
Illumination optimization including special backlight design features will be introduced in 2005 XgxE M1(  
    Has been demonstrated in papers, ORA demos, and limited customer testing in 2004 _CD~5EA:  
    w8lrpbLh  
    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！