For example, reducing the radius of a spherical gizmo crops the fog, and moving the gizmo changes the fog's appearance. This opens the Pick Object dialog, which lets you choose multiple objects from a list.Ĭhanging the dimensions of a gizmo changes the region that fog affects, but doesn't change the scale of the fog and its noise. Multiple apparatus objects can display the same fog effect. The name of the apparatus is added to the apparatus list. The apparatus contains the volume fog when you render. The gizmo can be a sphere, a box, a cylinder, or some combination of these.Ĭlick to enter Pick mode and click an atmospheric apparatus in the scene. However, you can choose a gizmo (an atmospheric apparatus) to contain the fog. This action doesn’t delete the gizmo from the scene, but simply unbinds it from the fog effect.īy default, volume fog fills the entire scene. Select the gizmo name from the pop-up list.In the Environment dialog, go to the Volume Fog Parameters rollout.When you render, the volume fog will be confined to the shape of the gizmo. The name of the gizmo appears in the list field at right. On the Volume Fog Parameters rollout, click the Pick Gizmo button.To assign a gizmo to volume fog from the Environment panel: Highlight Volume Fog from the Atmospheres list and click setup to adjust the Volume Fog parameters.Select Volume Fog from the Add Atmospheres dialog and click OK.Open the Atmospheres & Effects rollout.To assign volume fog to a gizmo from an apparatus modify panel: Clicking the New Seed button randomly generates a new seed value for you. Different seed values generate different patterns. In addition, each gizmo has a Seed spinner and a New Seed button. The Sphere gizmo has an additional Hemisphere checkbox that turns the sphere into a hemisphere. Drag the mouse to create the initial dimensions. You create Gizmos in much the same way as their matching geometry types. Drag the mouse in the viewport to create the gizmo.Click one of the buttons to choose a gizmo shape: SphereGizmo, CylGizmo, or BoxGizmo.In the Helpers category of the Create panel, choose Atmospheric Apparatus from the pop-up menu.