Objects appear mixed and transparent when compositing I am working on a sci-fi project, I rendered my scene and my objects are rendered on separate render layers. I encountered a problem and that is the spaceship and the planet in the scene both appeared mixed and transparent. I wanted to ask if maybe someone know a solution to this issue. Here is a picture of the compositing.

Many thanks in advance
Looks like you need to enable Transparency in the Render panel. This would allow you to composite your layers with more Alpha Over nodes instead of Add nodes. In general, I would keep Add nodes only for layering lighting effects.