Animated render region

[juang3d]

Think that you have to render a fix for a scene, but it's around one object, it's not just that object, but around it.

So my idea is similar to something Maxwell had in it's first releases (I don't know if it still have it), using an image sequence as alpha to define the render region, so you have a white zone animated around your object and it does not matter how much the camera is moving becuase it will render just where the white zone is.

So in the end, B/W image sequence to define the render region.

Cheers!

[Ondra]

This will be probably implemented, but in another way.

[kumodot]

This could be an amazing feature. I use Region Render a lot with Corona when something needs to be replaced on the scene and o not re-render everything. Re-Rendering regions is cheap and fast using Farm/Rebus, so i need to render a big region sometimes to cover all the camera movement. An animated render region would save a lot of time/money.

[GabrielS]

Any news about that possible feature?

Correct me if I'm wrong but vray has this sort of thing with vraysphere fade.
It's a Gizmo sphere that you can link to your animated object.
Juste the area inside the sphere is rendered.

Now that vray and Corona are together, maybe a possibility to have this option quickly?
Thanks

[dvdufo]

I think I find the solution :)

Create a simple 1x1 seg. plane and convert it to editable poly.
Animate its position or vertices based on your needs (it will be your animated render region)
Now just assign a CoronaMTL with refraction set to 1 and IOR set to 1 too. (leave the rest of settings as default)
Finally set Corona setting to render selected (from include/exclude list)

And you're Done (^_^)
____________________________________________
for better result :

After creating and animating  the plane as your Animated Render Region
-Uncheck followings in the Object Properties :
             "Cast Shadows" & "Receive Shadows" & "Visible to Reflection\Refraction"
-For material do:
             CoronaMtl
                 Diffuse = 0
                 Refraction = 0.01
                 IOR = 1
                 Opacity = 0
-in Render Setup > Scene tab > Render Selected Mode = "Include/Exclude list" and select plane after clicking on "+"