[讨论]LightToolsVsTracePro [复制链接]

  TracePro Overview L
T@OWH  
.12aUXo(  
Like LightTools, TracePro is an solid-modeling based illumination modeling program with a Windows-based interface and CAD import/export capability X/0v'N  
|L6&Gf]#5  
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 /JJw 6[N  
HMGB>  
TracePro analysis features are similar to LightTools, but LightTools is much stronger as an interactive design AND analysis tool

TracePro Weaknesses +IFw_3$  
N)2f7j4C&  
User Interface S$q=;"  
Must move/rotate objects by dialog box only IM@tN L  
Default naming convention (for spheres/elements, etc) is confusing and ambiguous b7`D|7D  
)cJ#-M2  
Modeling <O<LYN+(  
Most elements cannot be edited =+:{P?*}  
  Must be deleted and recreated (including optical properties) fxcc<h4  
No unboolean capability 4,Ic}CvM  
Boolean limited to two objects at a time ~&dyRtW
4  
3D texture very limited vs. LT

TracePro Weaknesses /^SAC%PD  
/*FH:T<V  
Ray Trace zET^T5>:  
No interactive (point & shoot) ray trace u7%D6W~m0  
No point sources; no volume sources ~
/pzxo$  
Clipped Lambertian sources are difficult (LED or fiber output) r|Z3$J{^"  
7,qYV}  
Analysis +j_;(Gw7  
No illumination error estimate ^FmU_Q0  
Only 4 preset bins “available” p@!nYPr.  
No 2D intensity distributions of full spheres Ks^6.)  
Limited ray sorting options

LT Strengths vs. TracePro u@'0Vk0zGH  
:bV mgLgG  
LT has excellent design features vs. TracePro l:
0s2  
Interactive ray trace q\Q{sv_  
Editable geometry omO S=d!o  
More powerful macro language in LT (VB/COM/Excel/etc. vs. Scheme) y.5/?{GL  
?_x q-  
TracePro features not fully or well implemented 6=4wp?  
3D textures ^'CPM6J  
Source definition jUv!9Y}F  
Many others

TracePro/LT Feature Checklist H9h@sSg  
q{s(.Uq$&  
Recent LT features addressing TracePro competition C{sLz9  
New LT 4.0 User Interface )vmA^nU>  
Accelerated Ray Tracing (improved in 5.0) j?y LDLj  
AOI and Wavelength Scattering capabilities ~!s-o|N_\  
Powerful 3D texture modeling for backlights (greatly expanded in v5.1 available 12/04) ur :i)~wXn  
t*@2OW`!  
TracePro features not in LT ~$'\L  
Ray trace through GRIN material sK{l 9  
Birefringent ray tracing

Misc. Comparisons, LT vs. TP j1_@qns{  
9lB]~,z  
Some large CAD models consume 20-30% more RAM and more CPU time in TP vs. LT ;Yi4Xva@  
wi9DhVvc 0  
TP CAD import repair feature much slower than LT *f,DhT/P  
M?=;JJ:  
Inability to edit properties of Booleaned objects in TP (easy and unlimited in LT) [M.f-x:  
fc/ &X  
Luminance meter simulation is simple approximation in TP, much more flexible and accurate in LT kYzC#.|1  
b-3*Nl_%  
Most operations in LT can be done by mouse, by numeric input, or any combination (fewer TP features are mouse-enabled) r]OK$Ql  
+C1QY'
>I  
LT online help is extensive and useful, but very limited in TP >^Se'SE]  
WL`9~S  
ORA Tech Support for LT is by a dedicated team or experience illumination and optical engineers

3D Texture Comparisons qlA7tU2p&  
{.yStB.T  
3D texture modeling more flexible and much faster to ray trace in LT vs. TP DE2a5+^  
1? FrJ6V  
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 1sPdz L  
8k(P,o  
When optimization is available in 2005, these parametric textures will make it much easier to design backlight systems

Coming Soon in LightTools y^]tahbo  
wH~kTU2br  
%*#n d  
Photorealistic rendering will be introduced in LightTools in 2005 w '3#&k+  
    Available now in TP, but feature is poorly implemented RT>{*E<I  
V138d?Mm  
Illumination optimization including special backlight design features will be introduced in 2005 ~EK'&Y"1  
    Has been demonstrated in papers, ORA demos, and limited customer testing in 2004 WD'#5]#Y  
    Isx#9C  
    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！