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CAD tip CAD tip # 8068:

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Q - question

Impact of LOGEXPPHYSICALSCALE on rendering (photometric).

A - answer The AutoCAD system variable LOGEXPPHYSICALSCALE defines the global value of relative brightness for self-illuminated materials in a photometric environment. Its logarithmic scale ranges from 0.001 to 200000.

The visual impact of this variable - using the defualt value 1500 and an increased value 5000 - is illustrated on the following pictures (wickerwork material and self-illuminated LED panel).



100% *  CAD 
28.6.2011    4544×  

See also:
Tip 11278:Undocumented option to switch AutoCAD 2016 to the Mental Ray renderer.
Tip 10296:Using cloud render in Fusion 360.
Tip 9976:How to make AutoCAD render without background (transparent)?
Tip 9965:How to create a 360° spherical panorama of your CAD model?
Tip 9549:Rendering of 3D models without background in Autodesk Showcase.

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