Re: Units convention for lighting and rendering

[Stephen Blair]

Hi Arnold doesn't have units. Steve Solid Angle Support On 21/02/2013 8:28 PM, Emilio Hernandez wrote: Thank you Max.  Working with MR for the last 20 years and switching to other render engines.  For Arnold I don't find any units system like Maxwell or Vray.  Is there any? 2013/2/21 Massimo Galluzzo <mass...@massimogalluzzo.it> Hello, just to clarify this in maxwell you can decide the settings for unit system, check here http://support.nextlimit.com/display/maxwelldocs/Softimage+-+Render+options its in the global render options, the paramter is called “Global scale factor” and if in softimage you adopt 1 SI unit = 10 cm, then the global scale factor should be set at 0.1.   Vray has also the Unit converter in its tab called “Units” which you can check here http://www.spot3d.com/vray/help/softimage/150R1/render_params_units.htm and its already set at 0.1 assuming people would use the most common used measure in Softimage which is 1 SI unit = 10 cm   Regarding the whole unit system, in Softimage you decide how much is your 1 unit and model/light based on that decision, all render engines has this unit conversion, Mental Ray doesnt really need since it is embed in.   Hope that helps,   Max   From: Emilio Hernandez Sent: Thursday, February 21, 2013 10:41 PM To: softimage@listproc.autodesk.com Subject: Re: Units convention for lighting and rendering   Thanks Julien.  It seems that the 1 unit = 10 centimeters gives me different intensities in render engines where you can't define the softimage scale like Vray or Maxwell. 2013/2/21 julien carmagnac <carmagnacjul...@gmail.com> We use at work : 1 unit = 1 meter -- --