Render Region

[kavorka]

Is it possible to be able to do a region select to render like Blender does for internal rendering, and have it only export that region to Octane? I used to use LuxRender and it had this option in the Blender exporter. Would be very helpful if I only want to test one small area, or if my client wants to change/add something to a certain area. I can render just that small area and photoshop it back together. I just had this come up and my solution was to hide everything that wasnt contributing (glass ect) to the area that needed changed and then render. not a perfect solution though.

Or would this only be possible if Octane supported region render?

[vinz]

Yes it would be great to implement this directly into the exporter ...
i really need render region too like a lot of us i imagine.

[matej]

What do you mean? A way to exclude from exporting all the objects that are not present in the "render region" viewing box? Possibly it could be done, but you cant exclude "off-screen" objects and then stitch parts of the whole image together, cause the lighting & reflections will be all different.

The only way to do proper region rendering is in Octane.

EDIT: Unless if you mean exporting the scene with a camera and resolution adjusted to match the render region defined in Blender?

[vinz]

My vision is more simple, a "standard" render region, you select a region with alt+b and this region is exported to octane.
i think it need a fov and camera shift conversion to keep the same lens distortion with the render region height/width a kind of wysiwyg without any display object modification.

edit: that's i already do manualy in octane, to render each individual part of a scene and keep the same lens distortion of the overall view.

edit2: and obviously it need to automaticaly disable vignetting.

[pixelrush]

Back in the days when I kept up an exporter for Indigo I remember you could find the camera and render region info in the python api. I suspect that same stuff is still there with 2.6x so it would be possible to do as you ask. You want the camera to just view/render that area in Octane, right?
BTW is Lionel still around?