The [MeshInstance] is ready to be added to the [SceneTree] to be shown.
See also [ImmediateGeometry], [MeshDataTool] and [SurfaceTool] for procedural geometry generation.
[b]Note:[/b] Godot uses clockwise [url=https://learnopengl.com/Advanced-OpenGL/Face-culling]winding order[/url] for front faces of triangle primitive modes.
Surfaces are created to be rendered using a [code]primitive[/code], which may be any of the types defined in [enum Mesh.PrimitiveType]. (As a note, when using indices, it is recommended to only use points, lines, or triangles.) [method Mesh.get_surface_count] will become the [code]surf_idx[/code] for this new surface.
The [code]arrays[/code] argument is an array of arrays. See [enum ArrayType] for the values used in this array. For example, [code]arrays[0][/code] is the array of vertices. That first vertex sub-array is always required; the others are optional. Adding an index array puts this function into "index mode" where the vertex and other arrays become the sources of data and the index array defines the vertex order. All sub-arrays must have the same length as the vertex array or be empty, except for [constant ARRAY_INDEX] if it is used.
[code]compress_flags[/code] is a bitfield made of [enum Mesh.ArrayFormat] values. It defaults to [constant Mesh.ARRAY_COMPRESS_DEFAULT].
[b]Note:[/b] The default [code]compress_flags[/code] enable [constant Mesh.ARRAY_COMPRESS_COLOR], which makes vertex colors stored as 8-bit unsigned integers. This will clamp overbright vertex colors to [code]Color(1, 1, 1, 1)[/code] and reduce their precision. To store HDR vertex colors, remove the vertex color compression flag by passing [code]Mesh.ARRAY_COMPRESS_DEFAULT ^ Mesh.ARRAY_COMPRESS_COLOR[/code] as the value of [code]compress_flags[/code].
Overrides the [AABB] with one defined by user for use with frustum culling. Especially useful to avoid unexpected culling when using a shader to offset vertices.
</member>
</members>
<constants>
<constantname="NO_INDEX_ARRAY"value="-1">
Default value used for index_array_len when no indices are present.
</constant>
<constantname="ARRAY_WEIGHTS_SIZE"value="4">
Amount of weights/bone indices per vertex (always 4).
[PoolRealArray] of vertex tangents. Each element in groups of 4 floats, first 3 floats determine the tangent, and the last the binormal direction as -1 or 1.
[PoolIntArray] of integers used as indices referencing vertices, colors, normals, tangents, and textures. All of those arrays must have the same number of elements as the vertex array. No index can be beyond the vertex array size. When this index array is present, it puts the function into "index mode," where the index selects the *i*'th vertex, normal, tangent, color, UV, etc. This means if you want to have different normals or colors along an edge, you have to duplicate the vertices.
For triangles, the index array is interpreted as triples, referring to the vertices of each triangle. For lines, the index array is in pairs indicating the start and end of each line.
