multimesh2d component

Godot's MultiMeshInstance2D: the multimesh asset in source, its mesh drawn flat once per instance in one call, each instance tinted over color. The node…

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Properties
Script functions

2d · render · 14 properties · 2D

Godot's MultiMeshInstance2D: the multimesh asset in source, its mesh drawn flat once per instance in one call, each instance tinted over color. The node keeps its own copy of the instances, so a script's edits stay on it; children draw once.

In a scene, multimesh2d is the node key that applies it. A script reaches each property below as a field on node.multimesh2d: reading one asks the running component, and assigning one leaves the rest alone. The whole table is node.multimesh2d.get() and node.multimesh2d.set(table).

Properties

property	type	default	description
`blend_mode`	enum	`auto`	How the surface lands on what is under it: straight alpha, a colour that already carries its alpha, added light, multiplied shade, screen, or opaque. `auto` is premultiplied for a texture uploaded with `premultiply`, else alpha One of `auto`, `alpha`, `premultiplied`, `add`, `multiply`, `screen`, `opaque`.
`color`	color	`[1,1,1,1]`	Tint under every instance's own colour, as channel floats or #rrggbb / #rrggbbaa
`cull_back_faces`	bool	`false`	Skip a triangle whose back faces the viewer, as a negative scale turns one
`dot_color`	color	`[1,1,1,1]`	The dots' colour. Not drawn on a skinned polygon, which a rig poses in Balaur's own vertex stage
`dot_size`	float	`0`	Size of a dot drawn on every vertex; zero draws none. Not drawn on a skinned polygon, which a rig poses in Balaur's own vertex stage At least 0.
`dot_sizing`	enum	`world`	What `dot_size` counts: `world` is world units, which the camera's zoom scales, `screen` is pixels One of `world`, `screen`.
`draw_surface`	bool	`true`	Whether the surface draws; off leaves the wireframe and the dots alone
`material`	asset · `material`	—	The material this draws with; empty takes an inherited `material` component, else the built-in one
`pixels_per_unit`	float	`100`	Texture pixels per world unit, for a mesh that carries no UVs of its own At least 0.01.
`source`	asset · `multimesh`	—	The multimesh asset: the mesh and the instances it is drawn at
`texture`	asset · `texture`	—	Image file, project-relative, or a `texture` asset; empty draws the colour alone
`wireframe_color`	color	`[1,1,1,1]`	The wireframe's colour. Not drawn on a skinned polygon, which a rig poses in Balaur's own vertex stage
`wireframe_sizing`	enum	`world`	What `wireframe_width` counts: `world` is world units, which the camera's zoom scales, `screen` is pixels One of `world`, `screen`.
`wireframe_width`	float	`0`	Width of a line drawn along every triangle edge, not the outline; zero draws none. Not drawn on a skinned polygon, which a rig poses in Balaur's own vertex stage At least 0.

Asset types this component references: material, multimesh, texture.

Script functions

Methods of node.multimesh2d, the handle a node carrying this component exposes. Every handle also has get(), set(table), patch(table), has() and remove().

From render:

method	what it does
`buffer() -> any`	Every instance as one flat list of floats in Godot's `MultiMesh.buffer` layout: 12 of transform in 3D or 8 in 2D, then 4 of colour and 4 of custom data.
`instance_color(int) -> any`	The colour one instance draws in.
`instance_count() -> int`	How many instances the node holds.
`instance_custom_data(int) -> any`	One instance's four floats of custom data, as a colour.
`instance_region(int) -> any`	One instance's texture rectangle as `[x, y, w, h]` in pixels, or nil when it draws the whole texture.
`instance_transform(int) -> any`	One instance's transform: a `Transform3d`, or a `Transform2d` on a 2D node.
`instances() -> any`	Every instance as the `multimesh` asset spells it, so `assets.save` writes a scripted layout into a file.
`populate(any) -> any`	Godot's Populate Surface, and a row, a ring or a grid: the instances a layout would write, worked out from `seed`, returned in the `multimesh` asset's shape rather than set. `kind` is `render.POPULATE_SURFACE` with a `surface` node, `POPULATE_ROW` (`count`, `step`), `POPULATE_RING` (`count`, `radius`) or `POPULATE_GRID` (`counts`, `step`); `rotation`, `tilt` and `random_scale` vary each instance, as fractions, around `scale`.
`set_buffer(any)`	Replace every instance from one flat list in the layout `buffer` answers in, for a Godot port that sets `buffer`. Building the list in a script costs more than one `set_instance_transform` per instance.
`set_instance_color(int, any)`	The colour one instance draws in.
`set_instance_count(int)`	How many instances the node holds. Those below the count keep where they were; new ones are plain, at the node.
`set_instance_custom_data(int, any)`	Four floats a material's shader reads for one instance, as a colour or a list.
`set_instance_region(int, any, any)`	The rectangle of the texture one instance draws, as an origin and a size in texture pixels; a zero size draws all of it. Not drawn yet: `multimesh2d` draws through Balaur's own pipeline, which binds no rectangle per instance.
`set_instance_transform(int, any)`	Place one instance with a `Transform3d`, or a `Transform2d` on a 2D node. A shear is kept, as the instance's `basis`.
`set_instances(any)`	Replace every instance with a list in the `multimesh` asset's shape.
`set_visible_instance_count(int)`	How many instances draw, from the first; -1 draws them all.
`visible_instance_count() -> int`	How many instances draw; -1 is all of them.