In this tutorial, we are going to create raindrops falling down a window pane in Corona Render and Cinema 4D. This technique can be copied directly into C4D Physical Render and the same principles can be applied in other render engines such as Redshift or Octane Render.
In the tutorial by thepixellab, we will use Blemish Pro maps to create the raindrops and use various nodes in Corona to randomize them and make it look really organic.