# Render border settings

In this question there is a screenshot showing the ability to set render border settings. However when I use Ctrl-b and select an area I don't see these settings in the options area, it just shows the text "Set Render Border" with a blank area (Blender 2.73b). Was this ability removed?

I'm mainly interested in these settings to see if they can be interpolated in an animation.

While you may not be able to adjust the values from the operator you can access and adjust the values used for the border. For the final render they can be found at scene.render.border_max_x... Note that min to max values are 0.0 to 1.0 so the clipping is a percentage of the render size. You should be able to alter these values in a frame_change_pre handler.