I’m rendering a large collection of objects in random positions with varied lighting setups. Some of my objects show a strange artifact near their outline. My best guess is that it has to do with the specularity settings of the objects’ materials and how they interact with the lighting, but I’m having a hard time pinning down what combination of materials and lighting creates the artifact.
Does anyone know what kind of lighting setup might cause weird outlines like this? (Look at the edges of the chair - it may not be clear unless you view the image at full size). Might it be indirect lighting or ambient occlusion?