Vray clouds!

[prateekvishwa]

I'm sorry if this is already being requested earlier.. i wish if V-Ray can give us a feature to add clouds, if not parametric, presets atleast.. image based or real.. may be something like Dreamscape or ozone. I have seen very impressive CG clouds of VUE in thr showreel on youtube. I have a strong urge to show time lapse clouds in some of my walkthrough

[glorybound]

this has been talked about and someone worked something out that gave okay results, but I was never able to use in in production.

[prateekvishwa]

this has been talked about and someone worked something out that gave okay results, but I was never able to use in in production.

Is it Bobby? can you post link here?

[glorybound]

it is

http://vray.info/tutorials/vrayenvfogclouds/

[prateekvishwa]

ahh i see.. this looks good but not what i am looking for.. i need to show some very dynamic clouds which going to reflect a lot on glass towers Aswell as i want to use them as BG. currently i am working on tall glass towers.. i have to make animation of same in later stage.. i like some of these hdris "http://www.aversis.be/hdri/hdri-collection-2010-bestsellers2.htm" but i am afraid if they will work because i have noticed using hdri for ref doesn't work most of the time, they looks blur in reflection

[glorybound]

lumion... have you seen it? It does a cool job with clouds and the environment.

[prateekvishwa]

looks gr8! wil give it a try. m scared how long is it going to take hold on materials etc.. i have even used Vue for a short period.. was very impressive but its materials workflow just gone above my head also lighting is little complex in Vue.. lets see how is it here. Thanks bob!

[chriserskine]

you can always just lock the camera off and using some timelapse clouds in the background.

if you fly around with timelapse clouds, I've experimented with making 360 timelapse using a motorised pano head. but thats not quite ready for production yet.

also with the hdr's they don't need to give you blurry reflections. its just the resolution. you don't get much with 10,000x5,000 image.

[joconnell]

It's also not just the resolution, it's the way you map them. For example if you've got a boxy building, all of the reflection rays of the windows are shooting forward. If you had your environment map in a box, those rays would fire straight ahead and hit a large amount of the area of your bitmap. Since most environments are mapped in a sphere though, you can often get your windows only hitting a tiny section of the reflection map - say only 5 degrees of the entire 360 degree pano so you're getting a tiny amount of pixels being seen in the reflections. If you have a specific camera angle, I think it's far more efficient to put a plane facing the feature windows with a copy of your reflection map on that - then you get really nice crisp detail. It's easier to have just one source for reflections but again you're looking at some huge maps to work as a catch all.