06-13-2017, 06:36 PM
Hi guys,
Two questions on Storm clouds:
1) I've noticed that many clouds have a smooth underside and a 'volatile' upper part:
![[Image: DSC_3040-wide-cloud2.jpg]](http://www.dl-digital.com/images/Astronomy/Lightning/DSC_3040-wide-cloud2.jpg)
Has anyone worked out a good way to simulate this so it looks natural? I've tried building it through an object source tied to a mesh that is rough on top but smooth on the bottom, but I'm not satisfied.
2) Some storm clouds have coloring that is very dark/opaque in a specific region. This clouds in this image are very dark along the upper-left edge. The darkness fades out towards the center of the cloud. The other edges to do not have this characteristic:
![[Image: storm_clouds_illuminated_by_lightning_by...6d1x6g.jpg]](http://orig08.deviantart.net/14ca/f/2013/192/c/8/storm_clouds_illuminated_by_lightning_by_nini1965-d6d1x6g.jpg)
I am saving out my Fume clouds as VDB and rendering with Arnold...any thoughts on how to shade the VDP so it has this 'darkened region' characteristic?
Thank you for any insights :VOPI :VOPI
Two questions on Storm clouds:
1) I've noticed that many clouds have a smooth underside and a 'volatile' upper part:
Has anyone worked out a good way to simulate this so it looks natural? I've tried building it through an object source tied to a mesh that is rough on top but smooth on the bottom, but I'm not satisfied.
2) Some storm clouds have coloring that is very dark/opaque in a specific region. This clouds in this image are very dark along the upper-left edge. The darkness fades out towards the center of the cloud. The other edges to do not have this characteristic:
I am saving out my Fume clouds as VDB and rendering with Arnold...any thoughts on how to shade the VDP so it has this 'darkened region' characteristic?
Thank you for any insights :VOPI :VOPI