[讨论]LightToolsVsTracePro [复制链接]

  TracePro Overview Um4$. BKD  
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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 rID_^g_tP8  
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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 SU.9;I !  

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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 MSef2|"P#  
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User Interface BbCt_z'  
Must move/rotate objects by dialog box only :Ng4? +@r  
Default naming convention (for spheres/elements, etc) is confusing and ambiguous
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Modeling MXQS6F#  
Most elements cannot be edited A'jw;{8NpF  
  Must be deleted and recreated (including optical properties) nMz~.^Q-  
No unboolean capability Kr;7
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Boolean limited to two objects at a time +i %,+3#6  
3D texture very limited vs. LT

TracePro Weaknesses *{/L7])gm  
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Ray Trace k{{iF  
No interactive (point & shoot) ray trace Stq [[S5P  
No point sources; no volume sources Gp<7i5  
Clipped Lambertian sources are difficult (LED or fiber output) > `uk2QdC  
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Analysis m{~p(sQL  
No illumination error estimate #<^ngoOj  
Only 4 preset bins “available” >Ei-Spy>Xl  
No 2D intensity distributions of full spheres :yLSLN  
Limited ray sorting options

LT Strengths vs. TracePro ^p'iX4M  
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LT has excellent design features vs. TracePro EPY64{  
Interactive ray trace |VY+!  
Editable geometry wU
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More powerful macro language in LT (VB/COM/Excel/etc. vs. Scheme) L}>XH*  
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TracePro features not fully or well implemented 1|+Zmo"  
3D textures (k@%04c  
Source definition ]#UyY
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Many others

TracePro/LT Feature Checklist xz@/^Cj  
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Recent LT features addressing TracePro competition 5CSihw/5  
New LT 4.0 User Interface ?1r>t"e5  
Accelerated Ray Tracing (improved in 5.0) O<@S,/Q4  
AOI and Wavelength Scattering capabilities rUb`_W@  
Powerful 3D texture modeling for backlights (greatly expanded in v5.1 available 12/04) [Rqv49n*V  
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TracePro features not in LT `M "O #  
Ray trace through GRIN material LI>tN R~  
Birefringent ray tracing

Misc. Comparisons, LT vs. TP 8P wobln  
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Some large CAD models consume 20-30% more RAM and more CPU time in TP vs. LT g$qNK`y  
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TP CAD import repair feature much slower than LT yv.UNcP?  
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Inability to edit properties of Booleaned objects in TP (easy and unlimited in LT) l8"  
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Luminance meter simulation is simple approximation in TP, much more flexible and accurate in LT ebbC`eFD  
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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) @"`J~uK  
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LT online help is extensive and useful, but very limited in TP (GLd"
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ORA Tech Support for LT is by a dedicated team or experience illumination and optical engineers

3D Texture Comparisons hpftVEB  
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3D texture modeling more flexible and much faster to ray trace in LT vs. TP =.
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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 eOZ0L1JM!  
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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 !/+'O}@-E  
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Photorealistic rendering will be introduced in LightTools in 2005 wS*An
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    Available now in TP, but feature is poorly implemented |sf&t  
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Illumination optimization including special backlight design features will be introduced in 2005 -L;sv0  
    Has been demonstrated in papers, ORA demos, and limited customer testing in 2004 5PY,}1`  
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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！