Hi Justin,

I'd like to help out, but I have some ?s

What OS are you using? Have you tried updating your video driver?
When rendering your image with a lot lamps on, did you try lowering the resolution? Maximize rendering settings check or unchecked?

Regards,
Johnny

Hi,

Render is in 720p normally but also tested with low resolution, tried both with and without the maximum quality with the result.
Mac OS 10.12.4, latest version of Atlas, no graphic driver to update.
I've only encountered this when I turn on 50 incandescent bulb.

Interesting.
Is exactly 50 incandescent bulbs that this happens and when doing so, do you have to wait a long time before you get the error to pop up?

When saving the image, where is the camera view located? This makes a difference of the work load for the rendering.

If you haven't already, try changing Multiple apertures visualization to Simple in the Rendering settings of Capture. Beam atmospheric resolution and detail to Medium as well.

Hi,

In nine cases out of ten this is a sign of running out of resources on the video card. Using the option for reduced memory usage could help. The omnidirectional lamps use a lot of memory for their shadow information, so keeping shadow resolution low will help too.