Arnold atmospherevolume doesnt render in transparency

[cyril.fassiau]

Hello guys, I'm tryinng the render an animation : this is a car going forward in the night, and the lights of the care are spot lights with atmosphere volume to see the cone in the render. Im trying to render the car and the environment separatly because the camera doesnt move.


But when i render the care with the lights (everything is under shadowmatte, exept car+carlights), i can't see the atmospherevolume with the lights in the render. I can see the start of the cones where ther're the car behind the light, but when there's nothing , i cant see the light.

Is there any way to turn around that problem?

Thanks!

[lee_griggs]

Does everything together render fine in-camera?

Can you post some images, please?

Which AOVs are you using?

Which format are you rendering to?

How are you viewing the images?