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Clarify how to convert PrimitiveMesh to ArrayMesh.

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It took me a bit to figure this out, as I was initially doing something
more complicated like this before I realized I just had to pass
get_mesh_arrays directly to add_surface_from_arrays.

```
var arr_mesh = ArrayMesh.new()
var arrays = []
arrays.resize(ArrayMesh.ARRAY_MAX)
arrays[ArrayMesh.ARRAY_VERTEX] = c.get_mesh_arrays()
arr_mesh.add_surface_from_arrays(Mesh.PRIMITIVE_TRIANGLES, arrays)
```

(cherry picked from commit 933bf96523)
This commit is contained in:
Ryan Roden-Corrent 2020-07-15 08:09:27 -04:00 committed by Rémi Verschelde
parent 5c7802a061
commit c77492408a
1 changed files with 6 additions and 1 deletions
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7
doc/classes/PrimitiveMesh.xml
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@ -13,7 +13,12 @@
<return type="Array">
</return>
<description>
Returns mesh arrays used to constitute surface of [Mesh]. Mesh arrays can be used with [ArrayMesh] to create new surfaces.
Returns mesh arrays used to constitute surface of [Mesh]. The result can be passed to [method ArrayMesh.add_surface_from_arrays] to create a new surface. For example:
[codeblock]
var c := CylinderMesh.new()
var arr_mesh := ArrayMesh.new()
arr_mesh.add_surface_from_arrays(Mesh.PRIMITIVE_TRIANGLES, c.get_mesh_arrays())
[/codeblock]
</description>
</method>
</methods>