Clouds

[glorybound]

How would you simulate cloud shadows? Would a projection map be the best? I would be curious to see how much realism it ads to an exterior scene. has anybody tried?

[JeffG2]

Somebody was doing great clouds with Vray volumetric fog a while back. They were even sharing the scene file. I believe it rendered quickly and- of course - cast shadows.

You could map the transparency of an invisible plane and position it above your scene - it would offer more control.

I think the effect does enhance scenes.

[glorybound]

I remember playing with that, but I never thought the results were all that great. Maybe I can use it just for the shadows.

http://www.spot3d.com/vray/help/150S...ronmentfog.htm (sample scene)

[beestee]

If you strategically painted a mask and do as jeff says it could make the structure stand out against a bland foreground if that is what the issue is...I would still be careful not to make the effect too strong though.

I think the effect is probably more appropriate for large development renders.

[Neilg]

I've done it on massive site aerials but i'd never bother on something smaller. Difference clouds in photoshop, levels, opacity map, render channel & overlay in ps.

[tricky]

I've stuck a plane object in the sky with an animated noise pattern on it and it worked quite well with a saved solution. Look here http://www.youtube.com/watch?v=KduVyLdSNZw at 2:18 for an idea. It served its purpose for this animation and could be refined a lot further.

[Franx]

I've stuck a plane object in the sky with an animated noise pattern on it and it worked quite well with a saved solution. Look here http://www.youtube.com/watch?v=KduVyLdSNZw at 2:18 for an idea. It served its purpose for this animation and could be refined a lot further.

Wow, very cool idea with the lights going up in the buildings as the description appears.
Great anim overall!

[flino2004]

you should post it under gallery(tricky) for future reference... I like it a lot, very easy way to understand a project.

Fernando

[Da_elf]

i used the noise/smoke map method on a plane before. works well

[greysheep5]

I've stuck a plane object in the sky with an animated noise pattern on it and it worked quite well with a saved solution. Look here http://www.youtube.com/watch?v=KduVyLdSNZw at 2:18 for an idea. It served its purpose for this animation and could be refined a lot further.

very nice, i really like the animation! but one question... the sky is stock footage composed in post and the animated noisemap was only for the shadows, am i right? looks like hell of a timeconsuming renderwork if those clouds were cg-animated vray-fog clouds?

best regards,

christoph.

[BBB3]

veering off topic, but I got to say, Tricky, this is a very nice piece. loved everything about it.