Decal (Terrain)
- 4A Games
Overview
Decal is a special kind of geometry that allows to overlay a texture or image on top of a terrain. Before starting to work with decals (terrain), you need to place a terrain on the level.
Placement and Setup of a Rabbit hole (Terrain)
- Find the Entity List.
- Open the terrain folder in the list.
- Drag and drop the decal object onto the scene.
- It is possible to move, rotate, scale, etc. the decal in the scene using the Edit Option from the Scene Edit Toolbar.
| Edit Option | Shortcut | Description |
|---|---|---|
| Select | S | Activate the Select Edit option. |
| Add | A | Activate the Add Edit option. |
| Move | W | Activate the Move Edit option. |
| Rotate | E | Activate the Rotate Edit option. |
| Scale | R | Activate the Scale Edit option. |
- Shortcut to add a decal to the scene: D + LMB.
- To optimize the work with decals, you can turn off the Realtime Refresh parameter (on the Tool tab). The decals will be rebuilt only after a movement.
Properties
| Property | Description | ||
|---|---|---|---|
| Base | Base | Name of a decal. | |
| Transform | Position | Moving the selected decal according to the given numerical values along the 3 grid axes X, Y, Z. | |
| Rotation | Rotating the selected decal according to the given numerical values along the 3 grid axes X, Y, Z. | ||
| Random rotation | Random rotation of the selected decal according to the given numerical values along the 3 grid axes X, Y, Z. You can set limits to constrain the results of the random rotation. | ||
| Type | Static Data Key | Name of the object type. One class might have several different types. For example, you can create several weapons of the same type. They will have the same set of static properties but their values will be different. | |
| Group | Editor group name (optional). | ||
| Bounding Size | AABB (axis aligned bounding box) size. | ||
| Last modified by | Name of the person who was the last to modify the selected object. | ||
| Tag | The tag assigned by the user. | ||
| Lock Transform | This locks the object's movement, scaling, and rotation in the scene. They can still be changed in the Properties window. When the map reloads, this will automatically unlock. | ||
| Lock to Heightmap | Offset | Objects can be locked to the heightmap and remain attached to the terrain even when the terrain is modified
| |
| Layer | Layer on which the object lies. | ||
| Accept foliage | Allows to accept foliage for the object: true/false. | ||
| Vertex alpha | Base | Allows to change the texture density of the decal: min - 0, max - 1. | |
| Tessellate | Allows to apply manual editing/drawing decals: true/false. | ||
| Subdivision | Allows to split the decal into a specified number of equal sections. | ||
| Mask | Allows to manually edit the decal mask. | ||
| Fade Open Edges | Allows to hide open edges of the decal. | ||
| Shape | Position | Moving the selected decal according to the given numerical values along the 3 grid axes X, Y, Z. | |
| Rotation | Rotating the selected decal according to the given numerical values along the 3 grid axes X, Y, Z. | ||
| Half size | Scaling the selected decal according to the given numerical values along the 3 grid axes X, Y, Z. | ||
| Culling angle | Max allowable angle at which the decal will be applied. | ||
| Texture | UV | Allow for selecting the type of UV for the decal: Rect or Frame. Rect allows you to crop a decal atlas wherever needed. Frame allows you to select a tile of the decal atlas. You will need to set up column/row numbers. | |
| Type | Allows you to flip the texture horizontally or vertically: frame/rect. | ||
| Offset | Offsets the texture according to the given values. | ||
| Rotate | Rotates the texture according to the given values. | ||
| World coords | Allows to adjust texture tiling one time to scale the decal – it is maintained automatically with World Coords. If TRUE, the decal will use World coordinates and not be stretched. If FALSE, the decal will follow the volume size. | ||
| Shader | The shader in use. | ||
| DAO: Value | Allows to adjust illumination of the decal texture. | ||
| Bias | The bias parameter allows you to push decal points along normals and solve the z-fight problem for intersecting decals. | ||
| Toggleable | True/False. | ||
| Affect materials | True/False. | ||
| Priority | Decal displays a priority value in case two decals overlap. | ||
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