Unigine.DecalMesh Class
| Inherits: | Decal |
This class describes how to create and modify mesh decals.
See Also#
A set of UnigineScript API samples located in the <UnigineSDK>/data/samples/decals/ folder:
- mesh_00
- mesh_01
- mesh_02
Creating a Mesh Decal#
The following code illustrates how to create a mesh decal, set its parameters and add the node to UnigineEditor.
Source code (C#)
using Unigine;
namespace UnigineApp
{
class AppWorldLogic : WorldLogic
{
private DecalMesh decal_mesh;
public override bool Init()
{
// create a mesh with a surface (e.g. a box primitive)
Mesh mesh = new Mesh();
mesh.addBoxSurface("box_0", new vec3(1.0f));
// create a mesh decal using created mesh and setting its radius to 10, material to "decal_base"
decal_mesh = new DecalMesh(mesh, 10.0f, "decal_base");
// set the name and position of the decal
decal_mesh.setName("Mesh Decal");
decal_mesh.setWorldPosition(new Vec3(0.0f, 0.0f, 5.0f));
return true;
}
public override bool Shutdown()
{
// clear pointer
decal_mesh.clearPtr();
return true;
}
}
}DecalMesh Class
Properties
float Radius#
The current height of the decal projection box along the z axis.
set
Sets the new height of the decal projection box along the Z axis.
set value -
The height of the decal projection box along the Z axis, in units.
string MeshName#
The name of the mesh used as a base for the decal.
set
Sets a name for the mesh.
set value -
A name to be set for the mesh.
Members
static DecalMesh ( Mesh mesh, float radius, string material_name ) #
Constructor. Creates a new mesh decal with the given properties.Arguments
- Mesh mesh - Pointer to Mesh.
- float radius - The height of the decal projection box along the Z axis, in units.
- string material_name - Material name.
static DecalMesh ( string mesh_path, float radius, string material_name ) #
Constructor. Creates a new mesh decal with the given properties.Arguments
- string mesh_path - Mesh name.
NoticeThe mesh 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.
- float radius - The height of the decal projection box along the Z axis, in units.
- string material_name - Material name
int SetMesh ( Mesh mesh, bool unique = 1 ) #
Copies a given source mesh into the current decal mesh.Source code (C#)
// create an empty decal mesh
DecalMesh decalMesh = new DecalMesh("",8.0f,"decal_base_0");
// create a mesh
Mesh mesh = new Mesh("decal.mesh");
// copy the mesh into the decal mesh
decalMesh.setMesh(mesh);Arguments
- Mesh mesh - Mesh to be set.
NoticeThe mesh 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.
- bool unique - Unique flag used when you create several objects out of a single Mesh instance:
- 0 - An instance of source mesh geometry is created. If the source geometry is changed at runtime, its instances will be changed as well.
- 1 - A copy of source mesh geometry is created and changes made to the source geometry do not affect the mesh.
Return value
1 if the mesh is copied successfully; otherwise, 0.int GetMesh ( Mesh mesh ) #
Copies the current decal mesh into the received mesh. For example, you can obtain geometry of the decal mesh and then change it:Source code (C#)
// a decal mesh from which geometry will be obtained
DecalMesh decalMesh = new DecalMesh("decal.mesh",8.0f,"decal_base_0");
// create a new mesh
Mesh mesh = new Mesh();
// copy geometry to the created mesh
if (decalMesh.getMesh(mesh) == 1) {
// do something with the obtained mesh
}
else {
Log.Error("Failed to copy a mesh\n");
}Arguments
- Mesh mesh - Current mesh.
Return value
1 if the mesh is copied successfully; otherwise, 0.void SetMeshName ( string path, bool force_load = 0 ) #
Sets a new name for the mesh and forces loading of the mesh with the new name for the current decal mesh.Notice
The mesh 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.
Arguments
- string path - A new name to be set for the mesh.
- bool force_load - Force flag.
- If 1 is specified, the mesh with the new name will be loaded immediately with the unique flag set to 0.
- If 0 is specified, only the mesh name will be updated.
void LoadMesh ( string path, bool unique = 0 ) #
Loads a mesh for the current mesh from the file. This function doesn't change the mesh name.Arguments
- string path - The name of the mesh file.
NoticeThe mesh 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.
- bool unique - Unique flag used when you create several objects out of a single .mesh file:
- 0 - An instance of source mesh geometry is created. If the source geometry is changed at runtime, its instances will be changed as well.
- 1 - A copy of source mesh geometry is created and changes made to the source geometry do not affect the mesh.
int SaveMesh ( string path ) #
Saves the decal mesh into a file.Arguments
- string path - Mesh file name.
Return value
1 if the mesh is saved successfully; otherwise, 0.static int type ( ) #
Returns a DecalMesh type identifier.Return value
Type identifier.Last update:
2020-07-31
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