How can I set the real watt???

[panda80]

Hi to everybody...
I need an help...
sometimes, I want to realiza a perfect photo-render, but I have a grat problem. When i create a bathroom, I create also the neon light or neon bulb, like this:
.
Bu Which kind of material I need to use to realiza the real watt irradiance???

[Dynedain]

You're better off putting and IES file on a light source placed in the middle of the bulb, make sure it excludes the bulb from shadow casting, and then make the bulb self-illuminiated

Max / Vray is not a tool suitable for trying to get perfectly accurate results based on physics since there are too many options that change the imaging characteristics.

[natty]

Dynedain is right but if you set both bounces to 1 you wont be to far off and of coures the correct ies file.

[samuel_bubat]

Hi there,

Take a look at Menue Customize/Customize User Interface/Toolbars.
Switch Category to "Lights and Cameras".
There you will find some ready made button presets like 60w bulb, 75w bulb
etw. Just drag those to a toolbar you like !

[ShaunDon]

Is there any possibility of getting real exposure controls in VRay so we can use real-world light multipliers? Course I'll find that they're coming in 1.5 and I should know that...

Shaun

[samuel_bubat]

You have that "Exponential" and "HSV Exponential" mode in the
"G-Buffer/Color mapping" rollout. This works quite well, even with an IESsun
...