[讨论]LightToolsVsTracePro [复制链接]

  TracePro Overview bYnq,JRA  
P*OG`%y  
Like LightTools, TracePro is an solid-modeling based illumination modeling program with a Windows-based interface and CAD import/export capability 7MLLx#U  
y]m: {  
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 MMs~f*  
MQ-
u9=ys  
TracePro analysis features are similar to LightTools, but LightTools is much stronger as an interactive design AND analysis tool

TracePro Weaknesses Q'/sP 5Pj  
Zj2 si  
User Interface >8e)V ;  
Must move/rotate objects by dialog box only `$B?TNuch7  
Default naming convention (for spheres/elements, etc) is confusing and ambiguous 6dRhK+|  
o utJ/~9;  
Modeling $nO~A7  
Most elements cannot be edited u ]e-IYH  
  Must be deleted and recreated (including optical properties) YsVmU  
No unboolean capability c>_ti+  
Boolean limited to two objects at a time nF<K84  
3D texture very limited vs. LT

TracePro Weaknesses !p&<.H_  
MJXnAIG?2  
Ray Trace _QL|pLf-  
No interactive (point & shoot) ray trace pl`4&y%Me  
No point sources; no volume sources D$hQ-K  
Clipped Lambertian sources are difficult (LED or fiber output) )D+BvJ Y"  
MzIDeZ  
Analysis Nw*<e ]uD  
No illumination error estimate 3K &637  
Only 4 preset bins “available” E>bkEm  
No 2D intensity distributions of full spheres l=CAr  
Limited ray sorting options

LT Strengths vs. TracePro `MI\/o
M@  
LYDiqOrx  
LT has excellent design features vs. TracePro ?Q"andf  
Interactive ray trace <?.eU<+O`S  
Editable geometry d{S'6*`D  
More powerful macro language in LT (VB/COM/Excel/etc. vs. Scheme) }~ D WB"  
`UsJaoR#f  
TracePro features not fully or well implemented X _ZO)|  
3D textures 5#.m'a)  
Source definition N~!, S;w  
Many others

TracePro/LT Feature Checklist Ae>+Fcv  
u@_|4Bp,"  
Recent LT features addressing TracePro competition rI$NNk'A  
New LT 4.0 User Interface _&-d0'+  
Accelerated Ray Tracing (improved in 5.0) n#X~"|U`  
AOI and Wavelength Scattering capabilities _Raf7W  
Powerful 3D texture modeling for backlights (greatly expanded in v5.1 available 12/04) v`|]57?A  
YiZk|K_  
TracePro features not in LT OJe!K:  
Ray trace through GRIN material p/Ul[7A4e  
Birefringent ray tracing

Misc. Comparisons, LT vs. TP lj<Sa  
tX^6R  
Some large CAD models consume 20-30% more RAM and more CPU time in TP vs. LT B#g~c<4<  
A+l(ew5Lw$  
TP CAD import repair feature much slower than LT `rn/H;r!Z  
R'gd/.[e  
Inability to edit properties of Booleaned objects in TP (easy and unlimited in LT) EDnNS  
Au2?f~#Fv  
Luminance meter simulation is simple approximation in TP, much more flexible and accurate in LT eA& #33  
^Laqq%PI  
Most operations in LT can be done by mouse, by numeric input, or any combination (fewer TP features are mouse-enabled) Z1fY' f  
V*n$$-5 1-  
LT online help is extensive and useful, but very limited in TP O:0{vu9AQ  
Ek<Qz5)  
ORA Tech Support for LT is by a dedicated team or experience illumination and optical engineers

3D Texture Comparisons a#]V|1*O  
|3~m8v2-  
3D texture modeling more flexible and much faster to ray trace in LT vs. TP O|t>.<T?  
f&CQn.K"  
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 1o&zA<+NY  
Cf(WO-F^  
When optimization is available in 2005, these parametric textures will make it much easier to design backlight systems

Coming Soon in LightTools K/zb6=->  
U5C]zswL  
G_1r&[N3  
Photorealistic rendering will be introduced in LightTools in 2005 AO5&Y.A#  
    Available now in TP, but feature is poorly implemented CT'4.  
4~Qnhv7  
Illumination optimization including special backlight design features will be introduced in 2005 $1ovT8  
    Has been demonstrated in papers, ORA demos, and limited customer testing in 2004 FO/cEu  
    [~8U],?1  
    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！