godot/doc/classes/ShaderGlobalsOverride.xml

<?xml version="1.0" encoding="UTF-8" ?>
<class name="ShaderGlobalsOverride" inherits="Node" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
	<brief_description>
		A node used to override global shader parameters' values in a scene.
	</brief_description>
	<description>
		Similar to how a [WorldEnvironment] node can be used to override the environment while a specific scene is loaded, [ShaderGlobalsOverride] can be used to override global shader parameters temporarily. Once the node is removed, the project-wide values for the global shader parameters are restored. See the [RenderingServer] [code]global_shader_parameter_*[/code] methods for more information.
		[b]Note:[/b] Only one [ShaderGlobalsOverride] can be used per scene. If there is more than one [ShaderGlobalsOverride] node in the scene tree, only the first node (in tree order) will be taken into account.
		[b]Note:[/b] All [ShaderGlobalsOverride] nodes are made part of a [code]"shader_overrides_group"[/code] group when they are added to the scene tree. The currently active [ShaderGlobalsOverride] node also has a [code]"shader_overrides_group_active"[/code] group added to it. You can use this to check which [ShaderGlobalsOverride] node is currently active.
	</description>
	<tutorials>
		<link title="Shading language">$DOCS_URL/tutorials/shaders/shader_reference/shading_language.html</link>
	</tutorials>
</class>