Move Render Region With Animation

Question

I am exporting my animation as single frames (.png) I need the contents of the exported frame to only be of the animated object. I am using Render Regions in conjunction with the Crop to Render Region checkbox checked.

This works great but as my object animates it moves outside the region of my Render Region.

Is there a way to get the Render Region to follow the animation? Or is there an alternative way to only render a particular area of your scene and keep it in sync with your object's movement during animation?

Here is an example of my current output where my cube leaves the Render Region:

I would like to see the cube in each frame exported.

Should work as well: https://blender.stackexchange.com/a/45837/31447 — brockmann, Jun 26 '20 at 16:28

score 2 · Answer 1 · answered Jun 22 '20 at 15:18

2

It's not possible to have the render region track an object by default, however, I did make an add-on for this exact purpose: 'Animated Render Border', available on the Blender Market here.

(Gif is from 2.79, but the add-on works with 2.8+.)

The add-on can track an object by looking at the object's bounding box, or more precisely, using its vertices (if it is a mesh, curve, armature (uses bones) or lattice). It can track collections of objects and it also has a mode to allow a more manual fine tuning ('Keyframe' mode).

answered Jun 22 '20 at 15:18

Ray Mairlot

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Thanks for posting this @ray-mairlot – Tjaart van der Walt Jun 22 '20 at 15:35
If you feel this has solved your question feel free to accept the answer by clicking the tick next to it. See: https://blender.stackexchange.com/help/someone-answers – Ray Mairlot Jun 22 '20 at 15:36

score -1 · Answer 2 · answered Jun 22 '20 at 02:21

Move your camera. (ctrl+ alt+ 0) / select your camera https://docs.blender.org/manual/en/latest/render/cameras.html If you need your camera to follow your animation , either parent the camera (ctrl+p) to the cube or put a track-to constraint on it. If you need a secondary camera, add a camera and then ctrl + 0 that camera for this animation close up.

score -1 · Answer 3 · answered Jun 22 '20 at 14:51

-1

Add an empty and camera in location (0,0,0)
Parent the camera with empty. Set the camera angle to be (0,90,0)
Make the empty to Track to the object you want to focus on.
Animate your object as you wish.

answered Jun 22 '20 at 14:51

Paramesh Chandra

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Move Render Region With Animation

3 Answers3