There is my simplified scene.

Sorry, what sample? for some reason i cant attach the project file.

Yea, PT and alpha shadows checked.

Yes, the box shadow. its like if the entire box have non zero value of smoke density.

Hi guys! I need your help with turbulenceFD plugin. The simulation itself renders just fine, but for some reason OCTANE renders TFD container(box) which cause unpleasant results. It appears on glossy materials. Check the attachment please. What am i doing wrong?