[讨论]LightToolsVsTracePro [复制链接]

  TracePro Overview 8193d%Wb  
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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 iY sQ:3s  
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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 brCL"g|}  
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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 >v/%R~BuX  
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User Interface 1)-VlQK p  
Must move/rotate objects by dialog box only lj*=bK  
Default naming convention (for spheres/elements, etc) is confusing and ambiguous U'}[:h~)  
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Modeling b|.<rV'BTt  
Most elements cannot be edited Fdx4jc13w  
  Must be deleted and recreated (including optical properties) E,A9+OKxJ  
No unboolean capability /EVXkf0  
Boolean limited to two objects at a time Gx%f&H~Z^  
3D texture very limited vs. LT

TracePro Weaknesses g`H;
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Ray Trace 4+N9Ylh  
No interactive (point & shoot) ray trace }Szs9-Wns  
No point sources; no volume sources 5e c T.  
Clipped Lambertian sources are difficult (LED or fiber output) iuoZk5O  
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Analysis J~5+=V7OV  
No illumination error estimate t,yMO  
Only 4 preset bins “available” TmgSV#G  
No 2D intensity distributions of full spheres $&0\BvS  
Limited ray sorting options

LT Strengths vs. TracePro }LdeU:E4  
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LT has excellent design features vs. TracePro NvjKB)J  
Interactive ray trace oJor ]QYK  
Editable geometry M[5fNK&nD  
More powerful macro language in LT (VB/COM/Excel/etc. vs. Scheme) [O^mG 9  
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TracePro features not fully or well implemented 9':MD0P/M  
3D textures qM0Df0$?x  
Source definition !wEz= i  
Many others

TracePro/LT Feature Checklist Jnf@u  
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Recent LT features addressing TracePro competition 2W vf[2Xw  
New LT 4.0 User Interface "}jv5j5  
Accelerated Ray Tracing (improved in 5.0) Xmaj7*f>p  
AOI and Wavelength Scattering capabilities R7~#7qKQB  
Powerful 3D texture modeling for backlights (greatly expanded in v5.1 available 12/04) guWX$C-+1  
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TracePro features not in LT b0!ZA/YC-  
Ray trace through GRIN material kESnlmy@J  
Birefringent ray tracing

Misc. Comparisons, LT vs. TP BP`'1Ns  
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Some large CAD models consume 20-30% more RAM and more CPU time in TP vs. LT Or*e$uMIY  
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TP CAD import repair feature much slower than LT S,%BhQ[  
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Inability to edit properties of Booleaned objects in TP (easy and unlimited in LT) I-?Dil3  
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Luminance meter simulation is simple approximation in TP, much more flexible and accurate in LT VwxLElV  
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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_ S]jE{  
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LT online help is extensive and useful, but very limited in TP =& .KKr  
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ORA Tech Support for LT is by a dedicated team or experience illumination and optical engineers

3D Texture Comparisons h<8.0  
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3D texture modeling more flexible and much faster to ray trace in LT vs. TP p2Fff4nQ   
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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 4$^\s5K  
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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 yK3b^  
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Photorealistic rendering will be introduced in LightTools in 2005 (-:lO{@FsC  
    Available now in TP, but feature is poorly implemented +KzbaBK  

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Illumination optimization including special backlight design features will be introduced in 2005 p]-\\o}  
    Has been demonstrated in papers, ORA demos, and limited customer testing in 2004 AJ0 ;wx  
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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！