Animating lights in vray

[robbybobson]

Hi all,

 

I am currently putting together a walkthrough for an auditorium using Vray and 3ds max 2010.

 

I normally render out my light cache with flythrough then irrad map for every 5th frame and then load them up and render out the final frames.

 

I usually do not have any animated objects apart from the camera movement itself.

 

However on this occasion I have animated the lights (vray light plane, vrayies and a couple of standard spots) to be off when you enter the room and to turn up over the first 100 frames or so. So I have keyed the lights and the vraylight materials to do this and that works fine.

 

The light cache does not work correctly when I render it out though. It leaves dark patches here and there.

 

I don't have any moving objects, just textures and lights that change intensity.

 

What is the correct method of calculating the light cache and irrad map.

 

Any help would be appreciated.

 

Paul

[robbybobson]

Right I have sorted it out now so no need for any advice. If anyone has a similar problem then all i did was break it down into sections and render each light cache and irrad map separately. I had the lights fading up before but I did not have time to do the brute force calcs for this so I just had them turn on instantly and rendered the before and after sections then pieced them together later.