Many Maps to Choose From
Corona Renderer comes with many useful maps that you will soon find indispensable, such as Ambient Occlusion, UVW randomization, Multimap, Triplanar mapping, and more. We’ll take a look at just one here, the Corona Distance map.
This flexible map can be used with Corona Scatter to easily achieve effects like keeping paths, roads, etc clear of plants and trees, and can also be used for creative effects such as adjusting materials based on distance to place ripples around an object in water, to cause objects to start glowing as they move close to each other, and more – it really is only limited by your creativity!
In the example below, the ground (with water included) and log were brought over from Quixel Megascans. The “Corona Distance map disabled” image looks a little unnatural, as the water appears completely still.
By using the Corona Distance Map to add extra displacement around the log, blended with the original displacement from Megascans, we can give the effect of ripples specifically around the log. Best of all, since this is procedural, if you move, scale or rotate the log object in the scene, the displacement effect will update automatically.