Forgive me if this is a taboo question, but how does the Aquatic Life screensaver actually work behind the scenes?
I’m trying to figure out if it’s just a video loop or a slick combination of animated models and shaders… given that I haven’t seen anything that suggests 3D engine support, I figure that it’s a pre-rendered video. I’d be thrilled to be wrong.
the latter, it’s not a video.
it’s NDK app and avail on the models with OpenGL (… which i think is all current ones)
Thanks for the reply.
Is there a meaningful path for a mortal to work with the lower-level SDKs at this point? I would love to be able to work in a 3D rendering context, even if the environmental constraints are harsh.
CreateObject(“roScreen3D”)
Come on, you know you want to… 
@RokuNB let’s try this again…
I take from the silence that we’re a long ways off being able to access the GL rendering layer. Sad, but we can move on.
When I look at the Roku opening sequence, I see a combination of perspective flips and reflections. Coming from the HTML world, we got some pretty powerful tools in the form of the transform and perspective CSS directives:
https://3dtransforms.desandro.com/
box-shadow, scale, rotate, duration, easing and a capable gradient function that could be applied to SG nodes would open up extraordinary creative possibilities for Roku apps: carousels are just the most obvious and immediate example.
I don’t know how your engineering team decides what features to bring to the platform, nor do I pretend to understand what’s hard vs impossible inside of the black box. However, if there’s a conversation to be had…
“RokuNB” wrote:
the latter, it’s not a video.
it’s NDK app avail on the models with OpenGL (… which i think is all current ones)
What’s an “NDK app”? Sounds like this is perhaps a native app which gives you more power/features than using BrightScript?
FWIW this is the Marine Aquarium application written by the guy over at www.serenescreen.com. It’s available for Windows, Mac, and of course Android since Roku is Android. There is an iOS version but not for recent versions of iOS. There are a ton of options, but I can’t figure out if any are available on the Roku version. You can control the number and type of fish, bubbles, lighting, etc. It is by far the best such app I have ever encountered. Being a screensaver is not the author’s primary intention, though that is how most people use it. He just lowered the price to $14.95 late last year and it is well worth it, IMHO.
Roku is Android? That is news to me.
No, Roku OS is not Android.
You can take a look at Roku’s screensaver documentation for how to build a screen saver. There is also a set of sample channels on GitHub that demonstrate how to do this.
I don’t know how it’s implemented, but I do know one thing … I keep waiting for the moray eel to jump out a grab one of those tasty reef fish! :smileylol:
Literally just said the same to my daughter. Nemo got way close. If that was a real aquarium he’d be eel food for sure! 
I have watched that thing for about a dozen back and forth cycles. The fish movements didn’t repeat in that time. I am about 87.3% sure the flora changes. I am about 46.8% sure the length (ie distance) of the cycle changes. I think it would be cool if it were based on the hours of daylight for the IP address location.
I am 99.8% sure I just saw a fish I’d never seen. It’s kind of like a koy except the front 1/2 is purple. I wander if it is possible to introduce AI generated fish and flore.
Does the screensaver use WiFi to generate the images? (Am I using up my monthly broadband allotment by leaving the screensaver on?)
