When I type in the value of 100 Watt as Radiant Power in a vray light to simulate a 100W light bulb, I get blown out areas. Recently I found out why that happens in the vray help file: “Keep in mind that this is not the same as the electric power consumed by a light bulb for example. A typical 100W…

You should be using the Lumen values of a light bulb, not its electric power. The Watts are mostly useless if you don’t know the efficiency of your light bulb - two light bulbs might be 100 W but produce wildly varying illumination. Best regards, Vlado

[image] 7 GPU configuration - will this work for GPU-RT Seriously, do I need to calculate the percentage of the visible light of a 100W light bulb (2-3 Watts)? Honestly, I dont care about which amount gets lost as heat radiation. I know what you mean. It is something we have just got used to o…

[image] Vray render to Nuke!! I know what you mean. It is something we have just got used to over the years. Perhaps Vray should come with some preset light levels for ‘typical’, known bulbs? A Tesco 50W bulb for example, or an Asda 7W low energy bulb… It’s better to have fewer presets built i…

[image] Vray render to Nuke!! I know what you mean. It is something we have just got used to over the years. Perhaps Vray should come with some preset light levels for ‘typical’, known bulbs? A Tesco 50W bulb for example, or an Asda 7W low energy bulb… Well, those would be very very specific t…

[image] Pack the Scene Well, those would be very very specific to a certain place. We have no Tesco and Asda bulbs in Bulgaria; the ones that we do have are probably not available in the US and so on. Best regards, Vlado I was only joking Vlado!

[image] SDD drive It’s better to have fewer presets built in to the program. They would only add clutter and never get used by most artists. Look at the templates in the Max Photometric lights, maybe those presets will help you out. Regards, Andrew For newcomers (and experts alike), presets …

Light bulbs actually say the lumens on the box. If you’re getting that specific where bulbs are being picked out for you (and seriously, you NEVER need to be that exact) then the information is available. Most have the exact colour on the box too, although not all. Like so: But lets be honest, who…

Proper Radiant Power (Watts) for Vray Lights

V-Ray for 3ds Max V-Ray for 3ds Max :: Ideas

Macker April 19, 2013, 10:25am 3

I work with the rough figure that a 100w incandescent bulb would be around 1500 to 1800 lumens, and between 2800 and 3500 kelvin.

Color mapping type vs mode

Topic		Replies	Views
Vray lights in newest build V-Ray for 3ds Max :: General	13	1303	August 17, 2007
How can I set up an acurate 100w Blub (with LWF)??? V-Ray for 3ds Max :: General	13	1650	April 17, 2015
Luminous power of Vray Light Common :: Render Theory	3	1368	April 3, 2008
Light in VRay: Question for Vlado Common :: Public	12	2085	December 3, 2007
watts II V-Ray for 3ds Max :: Issues	6	394	August 30, 2006

Proper Radiant Power (Watts) for Vray Lights

Related topics