This page has been translated automatically.
Video Tutorials
How To
Professional (SIM)
Interface Overview
Assets Workflow
Settings and Preferences
Working With Projects
Adjusting Node Parameters
Setting Up Materials
Setting Up Properties
Landscape Tool
Using Editor Tools for Specific Tasks
Extending Editor Functionality
Built-in Node Types
Light Sources
World Nodes
Sound Objects
Pathfinding Objects
Setting Up Development Environment
Usage Examples
UUSL (Unified UNIGINE Shader Language)
File Formats
Materials and Shaders
Rebuilding the Engine Tools
Double Precision Coordinates
Common Functionality
Controls-Related Classes
Engine-Related Classes
Filesystem Functionality
GUI-Related Classes
Math Functionality
Node-Related Classes
Objects-Related Classes
Networking Functionality
Pathfinding-Related Classes
Physics-Related Classes
Plugins-Related Classes
IG Plugin
CIGIConnector Plugin
Rendering-Related Classes
Content Creation
Content Optimization
Material Nodes Library
Art Samples
Warning! This version of documentation is OUTDATED, as it describes an older SDK version! Please switch to the documentation for the latest SDK version.
Warning! This version of documentation describes an old SDK version which is no longer supported! Please upgrade to the latest SDK version.

Mesh Decal

A Mesh Decal is a decal based on the arbitrary .mesh file and projected onto a surface by means of the orthographic projection.

  • The mesh that is used for projection should contain a single surface. In case if the mesh contains several surfaces, only the one with the 0 index will be used. Thus, the area of the decal will differ from the initial mesh.
  • The decals are always of the same size regardless of the projection box location relatively to the projection surface.

Roads Based on the Mesh Decal

See Also

  • The DecalMesh class to manage mesh decals via API
  • A set of samples located in the data/samples/decals/ directory:
    1. deferred_mesh_00
    2. deferred_mesh_01
    3. deferred_mesh_02
    4. deferred_mesh_03
    5. deferred_mesh_04

Creating a Mesh Decal#

To create a Mesh Decal:

  1. On the Menu bar, choose Create -> Decal -> Mesh.

  2. In the file dialog window that opens, choose a mesh for the decal:

    An exported mesh should have less than 10000 polygons.
  3. Press the OK button and place the decal somewhere in the world (for the decal to be projected, the mesh should intersect the surface).

Editing a Mesh Decal#

In the Node tab of the Parameters window, you can adjust the following parameters of the Mesh Decal:

Node tab

Decal Mesh#

Projection parameters of the Mesh Decal:


The height of the projection box along the Z axis, in units.

Radius = 10
Radius = 20
Mesh Path to the .mesh file on which the decal is based.

Decal Common#

Parameters common for all types of decals:

Bit Masks#

Viewport Mask A Viewport mask, specifying if the decal can be seen in the camera's viewport.
Intersection Mask The decal's Intersection mask is used paired with the cutout intersection mask of clutters and grass to cut out the clutter or grass in the areas of intersection with the decal (e.g. can be used to remove grass from the surface of a road projected using decal).
You can specify a Shadow mask and a Material mask in the decal_base material.

Visibility Parameters#

Parameters controlling decal's visibility depending on the distance:

Min Visibility A minimum visibility distance, starting at which the decal begins to fade in and then becomes completely visible, in units.
Min Fade A minimum fade-in distance, across which the decal smoothly becomes visible due to the alpha fading. It is counted starting from the minimum visibility distance value, in units.
Max Visibility A maximum visibility distance, starting at which the decal begins to fade out until becomes completely invisible, in units.
Max Fade A maximum fade-out distance, across which the decal smoothly becomes invisible due to the alpha fading. It is counted starting from the maximum visibility distance value, in units.

Setting a Material#

The material selection:

Material A new material for the decal.
Last update: 2022-03-10
Build: ()