[讨论]LightToolsVsTracePro [复制链接]

  TracePro Overview Ac'pu,v  
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Like LightTools, TracePro is an solid-modeling based illumination modeling program with a Windows-based interface and CAD import/export capability (Rsf;VPO  
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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 i,2eoM)FB  
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TracePro analysis features are similar to LightTools, but LightTools is much stronger as an interactive design AND analysis tool

TracePro Weaknesses 0|ekwTx.  
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User Interface 5p ,HkV  
Must move/rotate objects by dialog box only AWg'J  
Default naming convention (for spheres/elements, etc) is confusing and ambiguous 4'"WD0  
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Modeling ]"'1-h91  
Most elements cannot be edited [-Xah]g  
  Must be deleted and recreated (including optical properties) 
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No unboolean capability "JE->iD  
Boolean limited to two objects at a time (9b%'@A@m  
3D texture very limited vs. LT

TracePro Weaknesses i(kx'ua?  
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Ray Trace 4'td6F  
No interactive (point & shoot) ray trace #Z,@yJ2wl  
No point sources; no volume sources #kE8EhQZ  
Clipped Lambertian sources are difficult (LED or fiber output) 'F3@Xh  
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Analysis 39I|.B"  
No illumination error estimate ={51fr/C%  
Only 4 preset bins “available” O:ACp<@  
No 2D intensity distributions of full spheres 8#[2]1X^8  
Limited ray sorting options

LT Strengths vs. TracePro Ai)>ot  
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LT has excellent design features vs. TracePro ?f6SKC  
Interactive ray trace *9|p}q9n  
Editable geometry PXML1.r$Q  
More powerful macro language in LT (VB/COM/Excel/etc. vs. Scheme) VVcli*  
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TracePro features not fully or well implemented hj{)6dBX%  
3D textures }^VikT]>1  
Source definition KzQFG)q,  
Many others

TracePro/LT Feature Checklist 7{7Y[F0  
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Recent LT features addressing TracePro competition j-VwY/X  
New LT 4.0 User Interface #,97 ]  
Accelerated Ray Tracing (improved in 5.0) FM(EOsWk  
AOI and Wavelength Scattering capabilities @/:7G.  
Powerful 3D texture modeling for backlights (greatly expanded in v5.1 available 12/04) |Y?<58[!)  
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TracePro features not in LT {:3:GdM6  
Ray trace through GRIN material QcJC:sP\>  
Birefringent ray tracing

Misc. Comparisons, LT vs. TP 5#s],h  
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Some large CAD models consume 20-30% more RAM and more CPU time in TP vs. LT -7'|&zP  
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TP CAD import repair feature much slower than LT ew~?&=  
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Inability to edit properties of Booleaned objects in TP (easy and unlimited in LT) A?$-Uqb"  
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Luminance meter simulation is simple approximation in TP, much more flexible and accurate in LT O[
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Most operations in LT can be done by mouse, by numeric input, or any combination (fewer TP features are mouse-enabled) _}ii1fLv  
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LT online help is extensive and useful, but very limited in TP !]Qk?T~9-  
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ORA Tech Support for LT is by a dedicated team or experience illumination and optical engineers

3D Texture Comparisons 9_F&G('V{a  
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3D texture modeling more flexible and much faster to ray trace in LT vs. TP f~PS'I_r  
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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 g|->W]q@;  
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When optimization is available in 2005, these parametric textures will make it much easier to design backlight systems

Coming Soon in LightTools _-TW-{
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Photorealistic rendering will be introduced in LightTools in 2005 3c7i8b$  
    Available now in TP, but feature is poorly implemented OcPgw/ I  
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Illumination optimization including special backlight design features will be introduced in 2005 GnUD<P=I  
    Has been demonstrated in papers, ORA demos, and limited customer testing in 2004 1aV32oK  
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    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！