I’m new to Blender and have been learning via Youtube tutorials. Can anyone tell me why white particles keep appearing in my renderings? I tried turning the samplings up, all the way to 3000 and they keep popping up everywhere. Please see the attached images. Thank you!
those are called fireflies, you can do a variety of things to prevent them from popping up, like using clamping, disabling refractive caustics (for a diamond render like the one you show you’re better off using luxrender anyway I think), using branched path tracing and bumping up the glossy/refraction samples, etc.