In this recipe, we will create an underwater environment, looking especially at a fake caustic effect projected by the water's wavy surface and at the deep "atmospheric" perspective, obtained by a per material dedicated node group, as shown here:
Let's start by preparing the scene:
Start Blender and switch to the Cycles rendering engine. Select the cube and go in edit mode, scale it 21 times bigger (press A to select all the geometry and then press S, digit 21, and hit Enter), then scale it on the Z axis to
0.300
(press S, followed by Z, digit .3, and hit Enter).Go out of edit mode, switch to the Objects Modifiers window, and assign a Subdivision Surface modifier. Set the type of subdivision to Simple and the Subdivision value for both the View and the Render levels to
4
.Add a second Subdivision Surface modifier and set the type of subdivision to Simple and the Subdivision value for both the View and the Render levels to
2
.Now assign an...