[讨论]LightToolsVsTracePro [复制链接]

  TracePro Overview r ctSS:1  
(ND5CKCR^  
Like LightTools, TracePro is an solid-modeling based illumination modeling program with a Windows-based interface and CAD import/export capability Ly)(_Tp@+  
'`]n_$f'  
TracePro modeling capabilities are similar to LightTools but with significant weaknesses that make it harder to use and less flexible, and is especially limited in 3D texture modeling compared to LightTools }x?H ~QQT  
|v$%V#Bo  
TracePro analysis features are similar to LightTools, but LightTools is much stronger as an interactive design AND analysis tool

TracePro Weaknesses EO].qN-8  
j(%gMVu  
User Interface T1(j l)  
Must move/rotate objects by dialog box only HCJ8@nki  
Default naming convention (for spheres/elements, etc) is confusing and ambiguous $K?T=a;z  
ke}Y
2sB  
Modeling :J Gl>V  
Most elements cannot be edited "B9[cDM&  
  Must be deleted and recreated (including optical properties) bvipbf[m<  
No unboolean capability i!Dh&XT  
Boolean limited to two objects at a time my
\o P(e\  
3D texture very limited vs. LT

TracePro Weaknesses cQ(}^KO  
l_c^ .D  
Ray Trace y@o9~?M  
No interactive (point & shoot) ray trace ]{IR&{EI-  
No point sources; no volume sources I!fB1aq-  
Clipped Lambertian sources are difficult (LED or fiber output) Y
&vHOA  
y)3~]h\a  
Analysis x7
"z(rKl  
No illumination error estimate [3j$ 4rP  
Only 4 preset bins “available” L
!;^#g  
No 2D intensity distributions of full spheres \npz.g^c_  
Limited ray sorting options

LT Strengths vs. TracePro O6y @G .+  
=m`l%V[  
LT has excellent design features vs. TracePro Bu7A{DRf  
Interactive ray trace luW <V>  
Editable geometry !xkj30O(G  
More powerful macro language in LT (VB/COM/Excel/etc. vs. Scheme) RK?jtb=&A  
|]^l^e6m  
TracePro features not fully or well implemented a*Rz<08  
3D textures -NAmu97V}  
Source definition ?E%+}P  
Many others

TracePro/LT Feature Checklist 8Bq-0=E  
Gc wt7~  
Recent LT features addressing TracePro competition T-^0:@5o9  
New LT 4.0 User Interface 5`"iq "5Cf  
Accelerated Ray Tracing (improved in 5.0) v
eV_be{i  
AOI and Wavelength Scattering capabilities yKYl@&H/%  
Powerful 3D texture modeling for backlights (greatly expanded in v5.1 available 12/04) L/~D<V  
k=e`*LB\  
TracePro features not in LT 47KNT7C  
Ray trace through GRIN material -!l^]MU  
Birefringent ray tracing

Misc. Comparisons, LT vs. TP s'TY[  
ZNi +Aw$u  
Some large CAD models consume 20-30% more RAM and more CPU time in TP vs. LT B_hPcmB  
nWk e#{[  
TP CAD import repair feature much slower than LT n&$/Q$d&  
5Dd:r{{ Q  
Inability to edit properties of Booleaned objects in TP (easy and unlimited in LT) LX\)8~dp  
z|I0-1tAK  
Luminance meter simulation is simple approximation in TP, much more flexible and accurate in LT }-74f  
X &D{5~qC  
Most operations in LT can be done by mouse, by numeric input, or any combination (fewer TP features are mouse-enabled) ~q 7;8<U  
6lsEGe  
LT online help is extensive and useful, but very limited in TP ytiyF2Kp  
4@h;5  
ORA Tech Support for LT is by a dedicated team or experience illumination and optical engineers

3D Texture Comparisons |4fF T `  
_w>uI57U  
3D texture modeling more flexible and much faster to ray trace in LT vs. TP b
# u8\H  
RkA8  
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 nR[^|CAR  
R
5(F)abi  
When optimization is available in 2005, these parametric textures will make it much easier to design backlight systems

Coming Soon in LightTools o_$&XNC_  
s$ z2 c  
+rc SL8C  
Photorealistic rendering will be introduced in LightTools in 2005 %j5ywr:  
    Available now in TP, but feature is poorly implemented e;h,V(  
VD[pZ2;4  
Illumination optimization including special backlight design features will be introduced in 2005 N=~~EtX  
    Has been demonstrated in papers, ORA demos, and limited customer testing in 2004 v@n_F  
    <#*.}w~  
    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！