Vertex-Group Mask

Mask based on a chosen vertex-group

Vertex-Group Mask

Remove points of your distribution based
on a chosen vertex-group (also called "Vgroup").

Reminder

  • Use the ALT key while assigning your vertex-group to batch assign to all selected system(s).
  • If you are working with multiple surfaces, please make sure your chosen vertex-group is shared across all of your surfaces.
  • If you cannot paint anything, that's probably because your surface does not have enough vertices. We propose a "remesh" operator in the emitter panel.

Vertex-Color Mask

Mask based on a chosen vertex-color attribute

Vertex-Color Mask

Remove the density of a scatter-system with the help of a chosen vertex-color layer ( also called "Vcol", now recently re-named to "Color Attribute" ).


By default, Geo-Scatter will use the greyscale information of your color data, however, there are multiple color sampling methods available such as R/G/B channels or color ID. Handy to control the density of multiple scatter-system for one single painting canvas.

Pro Tips

  • When painting color ID maps, be sure that your brush falloff is set to flat.
    Gradient painting is not recommended when using a custom-color sampling method.
  • Always use black as your default color, white is a combination of all R/G/B channels, while black is a complete absence of color.
  • Set your brush blending mode to 'Add' if you'd like to paint in R/G/B channels.
  • Like the example above, you can save your ID colors in the color palette to quickly paint the corresponding systems.
  • Remember that color properties can be dragged and dropped or copied/pasted in Blender.

Image Mask

Mask based on a chosen image data

Image Mask

Remove the density of a scatter-system with a chosen image. Using an image for masking is best if you do not want to be limited by the amount and disparity of your surface(s) vertices. The color sampling tips from above also apply to this feature as well.

Reminder

  • In Blender, it is important to always save your image's data, or you might lose them when you open your file later on!
  • If you do not see anything, perhaps that's because your emitter surface does not have any UV's.
  • Note that Blender paint editor is quite slow when painting large areas.

Bezier-Area Mask

Mask based on a chosen bezier-area object


Bezier-Area Mask

Remove your distributed points located directly under the inner-area of a chosen closed bezier curve.

Reminder

While you are limited to one bezier object, please remind yourself that it is possible to have many curves da=ta within the same bezier object.


Pro Tip

Because the points are removed from the Z axis, it's much easier to enter an orthogonal top perspective to edit your curves.

Boolean Mask

Mask based on intersections with a chosen object

Boolean Mask

With the boolean mask you are able to your distributed points directly located inside, or outside, the volume of objects linked in a given collection.

Upward Obstruction Mask

Mask based on an obstruction with a chosen object

Upward Obstruction Mask

Remove your distributed points located directly under the objects linked in the chosen collection.

Pro Tip

For features interacting heavily with object meshes, If you are working with a lot of polygons, it might be best to quickly create a low poly easy-to-compute version of your mesh.


Reminder

Moving elements inside of the chosen collection will trigger an update of the dependent scatter-system(s).

Material Slot Mask

Mask based on a chosen face material index


Material Slot Mask

Remove your distributed points depending on their location on a given face material-index.

Feature Mask

Influence any of our procedural features with a mask

Universal Mask

In Geo-Scatter, almost every single feature can be masked with what we call the "Universal Feature Mask". This grants you the ability to precisely control where the effect contextually takes place, with the help of procedural noise, a chosen vertex-data, or an image projected on a chosen UV set.


In the hereby example, we are painting a wind effect by assigning a Vertex-Group feature mask to our wind-waves feature.