Backburner Error - Raytracing memory issue ?

[peterba]

I get this error message from backburner:

"There isn't enough memory for the raytracer to build it's acceleration data structures"

We are running Max 2008 and Vray 1.5. Service Pack 1 The render slaves are a mixture of 64 bit and 32bit it seems to render fine on the 64bit machines, sometimes the 32bit machines will render a frame and then bomb out on the next frame.

The scene has no raytraced materials or maps in and the file is only 50 mb, we have rendered much larger jobs successfully.

Anyone any ideas ?

Cheers

Peter

[vlado]

There might be advanced raytrace shadows in the scene, which also use the 3ds Max built-in raytracer.

Best regard,
Vlado