[讨论]LightToolsVsTracePro [复制链接]

  TracePro Overview 9_07?`Jr  
)=:gO`"D  
Like LightTools, TracePro is an solid-modeling based illumination modeling program with a Windows-based interface and CAD import/export capability ^-Knx!z  
5IsRIz[`TK  
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 Idzr
QP  
\dG#hH4ZD  
TracePro analysis features are similar to LightTools, but LightTools is much stronger as an interactive design AND analysis tool

TracePro Weaknesses *a2
y  
Y>N`(  
User Interface dl%KD8  
Must move/rotate objects by dialog box only ~:|qdv%\  
Default naming convention (for spheres/elements, etc) is confusing and ambiguous j+E[[  
!:7aXT*D$  
Modeling J6s55 v  
Most elements cannot be edited _s&sA2r<  
  Must be deleted and recreated (including optical properties) !FhiTh:GCh  
No unboolean capability ,Z"l3~0\  
Boolean limited to two objects at a time @uWPo2  
3D texture very limited vs. LT

TracePro Weaknesses ?_NhR  
@$ea-fK??  
Ray Trace TN=
MZ{L  
No interactive (point & shoot) ray trace =}G `i**  
No point sources; no volume sources 1HBdIWhHv.  
Clipped Lambertian sources are difficult (LED or fiber output) ZUW~ZZ7Z:  
wkp|V{k  
Analysis KLc<c1BZ  
No illumination error estimate f17pwJ~=  
Only 4 preset bins “available” tvC7LLNP<  
No 2D intensity distributions of full spheres -ty_<m]  
Limited ray sorting options

LT Strengths vs. TracePro Cu%|}xq  
tXocGM{6C  
LT has excellent design features vs. TracePro ?1I0VA']  
Interactive ray trace olC@nQ1c*  
Editable geometry YdI|xu>0A^  
More powerful macro language in LT (VB/COM/Excel/etc. vs. Scheme) r[:)-`]b  
~D4%7U"dv  
TracePro features not fully or well implemented |
Wrf|%p  
3D textures o <lS90J  
Source definition az(u=}  
Many others

TracePro/LT Feature Checklist T j7
i#o  
su}> >07  
Recent LT features addressing TracePro competition > dJvl|  
New LT 4.0 User Interface t` R#pQ  
Accelerated Ray Tracing (improved in 5.0) iBy:HH  
AOI and Wavelength Scattering capabilities FuNc#n>  
Powerful 3D texture modeling for backlights (greatly expanded in v5.1 available 12/04) nQc]f*  
Xi'y-cV ^  
TracePro features not in LT R}Ih~zw  
Ray trace through GRIN material 9HlRf6S  
Birefringent ray tracing

Misc. Comparisons, LT vs. TP 'IweN  
'H<0:bQ=I  
Some large CAD models consume 20-30% more RAM and more CPU time in TP vs. LT )5r*2I  
5MH\Gqe7  
TP CAD import repair feature much slower than LT !3{> F"  
NhyVX%qt:  
Inability to edit properties of Booleaned objects in TP (easy and unlimited in LT) (~Pb,Q  
#Sj:U1x  
Luminance meter simulation is simple approximation in TP, much more flexible and accurate in LT MfhJ
b_q`  
/O1r=lv3Z  
Most operations in LT can be done by mouse, by numeric input, or any combination (fewer TP features are mouse-enabled) }vkrWy^  
`}ak;^Me  
LT online help is extensive and useful, but very limited in TP
7z'l}*FRD  
PsTPG
K#S  
ORA Tech Support for LT is by a dedicated team or experience illumination and optical engineers

3D Texture Comparisons 'v.i' 6  
@.f@N
;z  
3D texture modeling more flexible and much faster to ray trace in LT vs. TP TTaSg\K  
M7&u_Cn?  
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 > $0eRVL  
LuQ4TT  
When optimization is available in 2005, these parametric textures will make it much easier to design backlight systems

Coming Soon in LightTools E]`)  
R{.5Z/Vp6E  
r- 0BLq]~{  
Photorealistic rendering will be introduced in LightTools in 2005 il `O*6-  
    Available now in TP, but feature is poorly implemented $F-qqkR$  
|><hdBQXX<  
Illumination optimization including special backlight design features will be introduced in 2005 Q.Hy"~  
    Has been demonstrated in papers, ORA demos, and limited customer testing in 2004 7Wb:^.d g  
    j?D=Ij"o  
    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！