[讨论]LightToolsVsTracePro [复制链接]

  TracePro Overview +#b:d=v!  
b5IA"w  
Like LightTools, TracePro is an solid-modeling based illumination modeling program with a Windows-based interface and CAD import/export capability H_!4>G@  
{u!)y?}I-  
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
kY,U8a3!  
}7G8|54t  
TracePro analysis features are similar to LightTools, but LightTools is much stronger as an interactive design AND analysis tool

TracePro Weaknesses q'oMAMf}  
FLoNE>q  
User Interface /sR%]q |L  
Must move/rotate objects by dialog box only G5dO 3lwq  
Default naming convention (for spheres/elements, etc) is confusing and ambiguous Hv]7e|  
x5dWBGH  
Modeling ~`>e5OgOJ  
Most elements cannot be edited ~Au,
#7X)  
  Must be deleted and recreated (including optical properties) Z3;!l  
No unboolean capability NVIK>cT6  
Boolean limited to two objects at a time ,:Vm6u!  
3D texture very limited vs. LT

TracePro Weaknesses C ]Si|D
  
D3Jr3 %>  
Ray Trace GN#<yv$av  
No interactive (point & shoot) ray trace b1pQ`qt  
No point sources; no volume sources at!Y3VywG  
Clipped Lambertian sources are difficult (LED or fiber output) Lf:uNl*D  
K|C^l;M6  
Analysis syx\g
z  
No illumination error estimate ERUt'1F?]  
Only 4 preset bins “available” |W$DVRA  
No 2D intensity distributions of full spheres a/~aFmu6b  
Limited ray sorting options

LT Strengths vs. TracePro [=uo1%  
[LT^sb  
LT has excellent design features vs. TracePro ogM%N  
Interactive ray trace ]!:oYAm  
Editable geometry #5sD{:f`  
More powerful macro language in LT (VB/COM/Excel/etc. vs. Scheme) E< 4l#Z<  
f0+2t.tj  
TracePro features not fully or well implemented >idBS  
3D textures VS#wl|b8  
Source definition u^I(Ny  
Many others

TracePro/LT Feature Checklist fQWIw  
fBBa4"OK=  
Recent LT features addressing TracePro competition aRj>iQaddx  
New LT 4.0 User Interface e"-X U@`k1  
Accelerated Ray Tracing (improved in 5.0) +y[@T6_  
AOI and Wavelength Scattering capabilities O9v_y+M+M  
Powerful 3D texture modeling for backlights (greatly expanded in v5.1 available 12/04) *VSel4;\t  
MB);!qy  
TracePro features not in LT ,F+B Wot4  
Ray trace through GRIN material 5OM?3M  
Birefringent ray tracing

Misc. Comparisons, LT vs. TP \a"Ct
'  
G" b60RQ  
Some large CAD models consume 20-30% more RAM and more CPU time in TP vs. LT ?{o/I
\\  
>QQ(m\a$  
TP CAD import repair feature much slower than LT m:tiY [c>W  
5FvOznK^e  
Inability to edit properties of Booleaned objects in TP (easy and unlimited in LT) ${~|+zdB  
gLD`wfZR  
Luminance meter simulation is simple approximation in TP, much more flexible and accurate in LT ;S
wC&.I  
u'Q?T7  
Most operations in LT can be done by mouse, by numeric input, or any combination (fewer TP features are mouse-enabled) OL59e%X  
iY[+Ywh  
LT online help is extensive and useful, but very limited in TP :2V^K&2L  
I"L;L?\S  
ORA Tech Support for LT is by a dedicated team or experience illumination and optical engineers

3D Texture Comparisons @ $cUNvI  
7D"%%|: h  
3D texture modeling more flexible and much faster to ray trace in LT vs. TP db=$zIB[:  
hp!d/X=J_  
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 n/e BE q  
vvu<:16  
When optimization is available in 2005, these parametric textures will make it much easier to design backlight systems

Coming Soon in LightTools qV1O-^&[f=  
(ClhbfzD  
-mNQ;zI1  
Photorealistic rendering will be introduced in LightTools in 2005 dZ2%S''\  
    Available now in TP, but feature is poorly implemented :1fagaPg  
=6nD0i9+  
Illumination optimization including special backlight design features will be introduced in 2005 #mc!Wt10  
    Has been demonstrated in papers, ORA demos, and limited customer testing in 2004 }Ag|gF!_  
    HB& &  
    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！