Initial commit

2026-10-03 23:29:41 -04:00
commit e24bbbda5d
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+extends Node3D
+class_name ShaderPrecompiler
+
+static var shader_compiler = null
+static var materials : Array[ShaderMaterial] = []
+
+# UNKNOWN: MultimeshInstances? Particles?
+## Returns the node being used to compile shaders
+## `use_new_node` allows you to precompile multiple shaders at once by spawning a new node
+## Disable process on the node if you want to choose when to precompile
+static func precompile(tree : SceneTree, shader : ShaderMaterial, use_new_node : bool = false):
+	materials.push_back(shader)
+	
+	var compiler = null
+	if use_new_node or shader_compiler == null:
+		if shader_compiler == null:
+			shader_compiler = MeshInstance3D.new()
+			compiler = shader_compiler
+		else:
+			compiler = MeshInstance3D.new()
+		compiler.set_script(ShaderPrecompiler)
+		compiler.mesh = QuadMesh.new()
+		compiler.mesh.size = Vector2.ZERO
+		compiler.position = Vector3(0,0,-0.1) # position self in front of camera
+		
+		compiler.cast_shadow = 0
+		compiler.custom_aabb = AABB(compiler.position, Vector3.ONE*100) # make sure we're always rendering
+		
+		tree.root.get_camera_3d().add_child(compiler)
+	else:
+		return shader_compiler
+	return compiler
+
+# Every node will attempt to grab a material from the queue per frame. If there are no new materials to show this frame, it deletes itself.
+func _process(_delta):
+	if len(materials) == 0:
+		if shader_compiler == self:
+			shader_compiler = null
+		get_parent().remove_child(self)
+		queue_free()
+	else:
+		var mat = materials.pop_back()
+		self.material_override = mat