I need help with using ID Masks in the compositor. I have rendered out objects in a scene with ID Masks so that they are all in separate PNG files with transparent backgrounds. To be composited together on a website. I have done this before and it worked fine. I just did this and find that when comped together (tested in Photoshop) there is a 1 pixel gap all the way around each object. This is not acceptable and is a severe problem.
Here is a test image comped in PS.
Here are the nodes used.
I know there must be solution to this as when you comp images with ID masks in Blender you don’t get gaps between the images, so I do not know if it is a PNG setting, a anti-aliasing setting or just a node combination that will output usable masked images.
Please help if you have any thoughts on this.
Thank you in advance.