[讨论]LightToolsVsTracePro [复制链接]

  TracePro Overview xO>z )3A  
/kK*%TP  
Like LightTools, TracePro is an solid-modeling based illumination modeling program with a Windows-based interface and CAD import/export capability }lX$KuD  
`b8nz7  
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 Y0|){&PCt  
[.xY>\e
 
TracePro analysis features are similar to LightTools, but LightTools is much stronger as an interactive design AND analysis tool

TracePro Weaknesses &-Ch>:[  
^;a .;wR  
User Interface ( `bb1g
z  
Must move/rotate objects by dialog box only M KW~rrR  
Default naming convention (for spheres/elements, etc) is confusing and ambiguous .uauSx/#4  
-F`GZ  
Modeling 8=L"rekV_  
Most elements cannot be edited Bh=t%#y|`  
  Must be deleted and recreated (including optical properties) >YWK"~|i~  
No unboolean capability K<5yjG8&  
Boolean limited to two objects at a time N7lg6$s Aj  
3D texture very limited vs. LT

TracePro Weaknesses uoE+:,P  
/+%aSPQ  
Ray Trace K% FK  
No interactive (point & shoot) ray trace '9WTz(0?  
No point sources; no volume sources Lw[=pe0
e  
Clipped Lambertian sources are difficult (LED or fiber output) 1O0. CC,p  
%<DdX*Qp  
Analysis 9:@Xz5  
No illumination error estimate U"8Hw@  
Only 4 preset bins “available” co8R-AB  
No 2D intensity distributions of full spheres P-2DBNB7  
Limited ray sorting options

LT Strengths vs. TracePro H*k\C  
KPz0;2}  
LT has excellent design features vs. TracePro #$S~QS.g  
Interactive ray trace a+lNX
lh=  
Editable geometry JjI1^FRd  
More powerful macro language in LT (VB/COM/Excel/etc. vs. Scheme) Q3hf =&$  
};rp25i  
TracePro features not fully or well implemented i@rUZYF  
3D textures Z+U -+eG  
Source definition FNraof @Oy  
Many others

TracePro/LT Feature Checklist B<BS^waU  
d.w]\  
Recent LT features addressing TracePro competition ~Sb)i f  
New LT 4.0 User Interface \Db`RvEmR  
Accelerated Ray Tracing (improved in 5.0) ;Ngk"5  
AOI and Wavelength Scattering capabilities H%l-@::+$  
Powerful 3D texture modeling for backlights (greatly expanded in v5.1 available 12/04) LYYz=oZOE!  
~v\ W[  
TracePro features not in LT QlB9m2XB  
Ray trace through GRIN material . U6(>6-  
Birefringent ray tracing

Misc. Comparisons, LT vs. TP c0e[vrP:  
;|XX^  
Some large CAD models consume 20-30% more RAM and more CPU time in TP vs. LT >G!=lLyR  
+@fE
w  
TP CAD import repair feature much slower than LT xPm{'J+b~  
O95gdxc  
Inability to edit properties of Booleaned objects in TP (easy and unlimited in LT) |H5GWZ O{^  
bnL!PsG$K,  
Luminance meter simulation is simple approximation in TP, much more flexible and accurate in LT & .1-6  
MkGQ  
Most operations in LT can be done by mouse, by numeric input, or any combination (fewer TP features are mouse-enabled) w6>P[oW  
]Kjt@F";  
LT online help is extensive and useful, but very limited in TP p8j4Tc5tQ>  
E7R%G OH  
ORA Tech Support for LT is by a dedicated team or experience illumination and optical engineers

3D Texture Comparisons ;TDvk]:  
Kp7)my  
3D texture modeling more flexible and much faster to ray trace in LT vs. TP E83$(6z  
O\cc=7  
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 uAnL`
 
&X~8S/nPAw  
When optimization is available in 2005, these parametric textures will make it much easier to design backlight systems

Coming Soon in LightTools 1+3-Z>^e  
-0;{  
WRbdv{1E  
Photorealistic rendering will be introduced in LightTools in 2005 -@w}}BR  
    Available now in TP, but feature is poorly implemented ,H?e23G  
DsxNg  
Illumination optimization including special backlight design features will be introduced in 2005 4@F8-V3q4  
    Has been demonstrated in papers, ORA demos, and limited customer testing in 2004 $Sy}im
\H  
    N@Ap|`Ei  
    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！