How to add a shader on object from code?

Help
1

Godot Version

4.3 stable

Question

I have a visual shader in .tres file and Sprite2D object. How can I add this visual shader to my object and change visual shader variables from code?

2

Easy. Preload your shader resource and set the shader to the sprite2d

const SHADER = preload("res://shaders/visual_shader.tres") ##Location of your visual shader

func _ready() -> void:
	sprite_2d.set_shader(SHADER)

You can also save the shader with its parameters as a material and set material instead.

The correct answer is below How to add a shader on object from code? - #3 by gertkeno

3

Need to give the sprite a shader material first, set_shader isn’t a method of Sprite2d/CanvasItem

const SHADER = preload("res://shaders/visual_shader.tres") ##Location of your visual shader

func _ready() -> void:
	sprite_2d.material = ShaderMaterial.new()
	sprite_2d.material.shader = SHADER
2 Likes
4

You’re right, I missed that.

5

Thanks, but thats only half of problem. I still dont know How I can change shader parameters

6

Use shader material’s set_shader_parameter method

sprite_2d.material.set_shader_parameter("uniform_name", new_value)
7

Everything works, Thanks a lot

8

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