Max Tip: Check for scale transforms on your cameras

If a Camera or it’s parent node has a scale transform it will effect the way SSS looks in Mental Ray.

sss_and_camera_scale

It’s common practice to rescale the root node to place camera motion from tracking software like pfTrack.

BUT … This will give you inconsistent lighting result with materials that use ‘real world’ scale.

til I figured this this out … I┬áLost a few hours today scratching my head. ..