vray realistic lighting: Help with 100+ ies photometric lights

[rukout]

Hi guys,

 

We would like your opinion on this situation:

 

We are working on a project with interior scenes having 100+ ies photometric lights; materials are mostly glass (opaque and transparent) mirror, and marble.

 

The client gave us the ies lights that we have to use and the final output should be realistic in terms of the lighting plan that they designed.

 

Output size is suitable for printing, A2 to A1.

 

Can you suggest an efficient setup without taking up 100+ rendering hours?

 

Our rigs: Quad 2 core, 8 mb ram, vcard: Radeon Force3D HD 4670.

Software: 3ds Max 2011 64bit, Vray 1.5

 

thanks

[Devin Johnston]

With that many IES lights and so much reflective material you're going to have long render times regardless of what you do. Obviously you want to use IR & LC but you may want to play with the settings to see just how low you can get them, that could save you some time. You could try substituting some vray lights in the place of the IES lights to see if there's a big difference in the look, if not then just use the faster vray lights in less important areas.

[dimosbarbos]

I agree with Maxer time of the rendering depends on what kind of materials you use.

You can check if you assign white material for all geometry.

I think you can try to use "store with irradiance map" in lighting setup section.

Edited August 3, 2011 by dimosbarbos

[Thablanch]

Vray .ies are really efficient, and render as fast, if not faster sometimes, than Vray lights. Just make sure not to une 3dsMax buildt in ies, but vray ies.

[wuhoo]

Reduce the VrayIES light setting cutoff setting so that your computer doesn't needlessly calculate the effect of each light down to less than 1% of each light's intensity. Ie. Instead of the deault 0.001, use 0.01 or even 0.02 to 0.005. Also, perhaps try reduce the shape subdivisions down to 6 instead of 8. Every little bit counts!