Random Color for multiple .ASS objects in scene


Hello, Im doing a scene with a lot of Car models, Im using Arnold so I exported them in .ass

Originally I was using “Containers” and this shader worked for me:


For every Container i got a different color for the Car, but the scene got very heavy so I moved to use Arnold Procedural, and this method doesnt give me the random colors, there is another way to achieve this? The Cars are not moving so if at least can get a different value based on position that can work for me right now.