VRay and HDRI Question...

[sutaih]

Sorry if this is posted in the wrong forum but...

 

I am creating a time-lapse animation and I'm using a VRay light as my "sun" with an HDRI sky/environment. I know how to animate the light source, but not the HDRI. Is it possible to animate an HDRI? It's a very quick animation with only 90 frames or so.

 

If not, where can I find animated skies that work well with VRay?

[sutaih]

To be more specific, what I need to find out is IF it's possible to animate the light values of an HDRI. Can this happen?

[Ricardo Eloy]

In theory, you can animate anything with spinners. But why not use a VRaySky as your BG? It will follow the sun and give you a really nice animated BG (not to mention you can use it in the VRay GI Environment and take advantage of the light changes).

[Sawyer]

A while ago vlado posted a series of hdri stills taken every 1/2 hour (I think) all day. Then you place a new one in for each frame. That was the only time I have seen anything like that. You could create a gradient using vray color and animate that. That would be a bit easier.

[sutaih]

Rick, that's a good point but I'm on a deadline and we're too deep with our lighting solution to jump into the VRay Sky.

 

Question regarding the VRay Sky and BG: I've actually animated a time-lapse with it and it worked really well. But what I haven't figured out yet is how to get a sky in the scene and animate it with clouds, etc... I guess I just haven't played with it enough. But I would like to know the procedure for that because it'll be beneficial to all when creating really dynamic animations.

[Christopher Nichols]

The HDR sequence you are talking about that vlado posted is from Paul Debevecs site: http://gl.ict.usc.edu/skyprobes/ There is even a sequence you can download there which is 1k and is every 10 mins.