Inches or Millimetres

V-Ray for SketchUp V-Ray for SketchUp :: General
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Hey Guys,

I downloaded some IES Lighting files and they seem to work fine when my units are set to inches…unfortunately I work in millimetres and when I render the lighting is way too bright, is there a way to fix this???

Dave

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Re: Inches or Millimetres

You’re saying that a 100 sq ft room is lit differently than a room that is 9.3 sq meters?

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Re: Inches or Millimetres

-sigh- yup, seems that is the case…

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Re: Inches or Millimetres

Hey Devin,

No sorry maybe I am explaining this wrong, I am doing a simple lighting test using IES Lights, when my units are set to inches and I render it works fine as shown in the image below.

But if I change my units to millimetres the render is completely white, I can’t see anything.

Any thoughts on this…

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Re: Inches or Millimetres

I made some test about this issue and I get the same result as David. I also made a test in 3DS max to see if the units affect the scale factor of the lights, and I always get the same illumination no matter of the units (3DS Max). In V-Ray for SU I get more illumination with IES light, but I get the same illumination with rectangular light and omni ligth. So could be an issue with IES light only.

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Re: Inches or Millimetres

… a 100 sq ft room is about 9.3 sq meters, we’re all saying the same thing. I confirmed the bug before replying with > -sigh- yup, seems that is the case…

I already have a test scene and a bug report made. Thanks for pointing this out.

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Re: Inches or Millimetres

Thanks for the reply guys…appreciate the effort trying to figure this out… :slight_smile:

Sorry Devin I didn’t realise what your second post meant…:stuck_out_tongue:

Can the strength of the ies light be reduced?

Thanks