Forest Edge map

Overview

Forest Edge is a map used in conjunction with Edge boundary checking mode when using Corona and Mental Ray renderers to create clean edges. In this mode Forest Pack  uses the lowest Z Vertex of each of the item's individual elements to check if they're outside the scatter area. If so, only the individual element is removed creating a clean edge, without slicing the geometry. Note that when using edge mode, an element is defined as a group of connected faces that share the same material ID. These are the same elements used by Forest Color. In order for this mode to work correctly in Corona and Mental Ray, a Forest Edge map must be applied to the material's opacity channel. 

In this section:

Procedures

To use Edge Boundary checking with Mental Ray

  1. Apply a Forest Edge map to the material's Cutout map slot.
  2. If the material also requires an alpha, apply this to the Forest Edge map's Opacity map slot.
  3. In the Forest Object, go to the Area's rollout and set Boundary Check mode to Edge

To use Edge Boundary checking with Corona

  1. Apply a Forest Edge map to the material's Opacity Color map slot.
  2. If the material also requires an alpha, apply this to the Forest Edge map's Opacity map slot.
  3. In the Forest Object, go to the Area's rollout and set Boundary Check mode to Edge

To use Edge Boundary checking with V-Ray

  • In the Area's rollout set Boundary Check mode to Edge
     
  • When using V-Ray there's no need to apply a Forest Edge map to the materials.

 

To automatically apply Forest Edge to multiple materials

  1. In the Forest Object. go to the Material rollout and click Optimise Materials.
  2. In the Material Optimiser, turn on Apply Forest Edge, if you also need to add Forest Colour maps to the Diffuse slots you can turn this on too.
  3. Click Optimise. To find out more about the Optimise Tool and its settings, see the reference section for the Material rollout.

 

Edge Mode does not preview in viewports

To improve viewport performance edge trimming is calculated only at render time. This means the effects of the this mode will not be previewed in the viewports. However, previews can be enabled by holding down the left CTRL key and clicking on the Edge radio button.

Interface

Forest Edge maps should be use in the Opacity or Cutout map slot of materials. If your material already has maps in these slots, then these should be added to Forest Edge's Opacity Map slot.