I try to make image compositing with Blender and my sequence images layers are EXR coming from another software ( Houdini ). Many software use a feature of openEXR call "data window". It's make a crop in the full image where you have data. This informations is probably embedded in the exr metadata. Most software are be able to read this cropping informations and get you image back to it's resolution ( for example 1920 x 1080 ). But in Blender compositing module , it's not to be the case and I just don't know if a option exist for that. If I render a image where all my 3D geometry take the place in the screen is not a problem but rendering a layer for a small object taking just some space in the full 1920 x 1080 resolution , Blender show it as cropped around this object. If it's a animated sequence , the crop just fellow the object frame by frame.
Any options or workaround for that ?