I have rendered cryptomattes with Octane, and when I import the Octane EXRs, I can separate the mats from different layers, but they have a halo around them, and are not perfect. After finishing composition I have a little gap around every object....
Could it be an issue with checking the premultiply box? Are there any specific settings that need to be used? It's crucial that the mattes are accurate; currently, when composing the scene, there are gaps when separating different objects, and I'm using a resolution higher than 3000 pixels wide. I can't find a post that clearly presents a solution to this problem. I would greatly appreciate any kind of assistance, please.