Field Animation

An animation field is an object, specifying geometry areas of grass and vegetation that should be animated. It affects animation parameters of leaf and stem materials applied to grass and vegetation.

An animation field can be used, for example, to create local rotor downwash effects on grass and trees.

See also#

To animate some specific part of grass or vegetation with an animation field, do the following:

1. Add an animation field to the world: on the Menu bar, choose Create -> Field -> Animation and place the node in the world.

   

   Notice

   The animation field will affect only those part of grass or vegetation that is inside it.
2. Set up the added animation field: check the Ellipse option (if required), set the size of the field. For example:

   

   

3. In the Materials Hierarchy window, select the material applied to grass or vegetation and go to the States tab in the Parameters window. Change the value of the Animation option to Field. This will allow the field to affect the grass.

   

4. Make sure that the Field mask of the animation field matches the Field mask of the grass object or stem and leaf materials (in case of animating vegetation).
5. In the Field Animation section (Parameters window -> Node tab), specify the required animation parameters. For example, you can increase the Stem option to 3 so that the movement amplitude of the grass inside the animation field differs from the movement amplitude of all the other polygons.

   In the result, animation of the grass area inside the animation field will visually differ from the grass outside the field.

   

In the Field Animation section (Parameters window -> Node tab), the following parameters of the animation field can be adjusted:

Setting Form of Field#

Setting Bit Masks#

Setting Size and Attenuation#

Setting Animation Parameters#