https://docs.godotengine.org/en/latest/tutorials/shading/visual_shaders.html Returns an [Array] containing default values for all of the input ports of the node in the form [code][index0, value0, index1, value1, ...][/code]. Returns the default value of the input [code]port[/code]. Sets the default input ports values using an [Array] of the form [code][index0, value0, index1, value1, ...][/code]. For example: [code][0, Vector3(0, 0, 0), 1, Vector3(0, 0, 0)][/code]. Sets the default value for the selected input [code]port[/code]. Sets the output port index which will be showed for preview. If set to [code]-1[/code] no port will be open for preview. Emitted when the node requests an editor refresh. Currently called only in setter of [member VisualShaderNodeTexture.source], [VisualShaderNodeTexture], and [VisualShaderNodeCubemap] (and their derivatives). Floating-point scalar. Translated to [code]float[/code] type in shader code. 3D vector of floating-point values. Translated to [code]vec3[/code] type in shader code. Boolean type. Translated to [code]bool[/code] type in shader code. Transform type. Translated to [code]mat4[/code] type in shader code. Sampler type. Translated to reference of sampler uniform in shader code. Can only be used for input ports in non-uniform nodes. Represents the size of the [enum PortType] enum.