(Solved) Difficulty trying to access a sub-material

OneMoreQuest

Hi, I recently picked godot again and finally decided to actually finish a project on it, but now I have hit a problem that apparently no solutions from searches seem to work or be even close to what I need.

Is there a way to, as simply as possible, set a sub-material of a mesh to a specific spatialmaterial resource?

Even if this is inefficient I simply want to switch two materials to "simulate" a light effect on a glass part of a model that should look like it was lit up (I don't want to deal with textures yet, I am trying to keep this project as simple as I can so I can learn progressively.)

I am using this structure for my object:

And I want to edit this parameter through the script:

What I have currently on my code, or at least what I would like to do in logic:

extends Node

var on = false

remote func toggle():
	var light = get_node("Light")
	
	
	on = !on
	if on == true:
		light.visible = true
		set_material(2, "res://Objects/Flashlight/Glass_instance.material")
	else:
		light.visible = false

xyz

According to documentation, the MeshInstance node has a method set_surface_material(). So from the script attached to such a node you can simply write: set_surface_material(index, material)

OneMoreQuest

I tried doing that, but for some reason it says set_surface_material is not declared in the current class. Am I missing something to make it work?

OneMoreQuest

Nevermind, apparently using `$".".set_surface_material(2, "") seems to recognize the method, but now I need to find how to convert the string into a proper material type variable since it now says the method cannot convert string to material.

OneMoreQuest

And using this:

extends Node

var on = false

func toggle():
	var light = get_node("Light")
	var material_lit:Material = load("res://Objects/Flashlight/Glass_instance.material")
	var material:Material = load("res://Objects/Flashlight/Glass.material")
	
	
	on = !on
	if on == true:
		light.visible = true
		$".".set_surface_material(2, material_lit)
	else:
		light.visible = false
		$".".set_surface_material(2, material)

Everything seems to work perfectly. Huge thank you!

OneMoreQuest

Now I just need to find where the accept answer is haha.

xyz

Everything seems to work perfectly. Huge thank you!

Yep! Just use load() or better yet preload() to load in the material from the resource

TwistedTwigleg

@OneMoreQuest said: Now I just need to find where the accept answer is haha.

I changed the topic from a discussion to a question, so now there should be buttons that will allow you to accept a post, or posts, as the answer :smile:

OneMoreQuest

@TwistedTwigleg said:

@OneMoreQuest said: Now I just need to find where the accept answer is haha.

I changed the topic from a discussion to a question, so now there should be buttons that will allow you to accept a post, or posts, as the answer :smile:

Huge thank you! You are the absolute best <3