A scalar float parameter to be used within the visual shader graph. Translated to [code]uniform float[/code] in the shader language. A default value to be assigned within the shader. Enables usage of the [member default_value]. A hint applied to the uniform, which controls the values it can take when set through the Inspector. Minimum value for range hints. Used if [member hint] is set to [constant HINT_RANGE] or [constant HINT_RANGE_STEP]. Maximum value for range hints. Used if [member hint] is set to [constant HINT_RANGE] or [constant HINT_RANGE_STEP]. Step (increment) value for the range hint with step. Used if [member hint] is set to [constant HINT_RANGE_STEP]. No hint used. A range hint for scalar value, which limits possible input values between [member min] and [member max]. Translated to [code]hint_range(min, max)[/code] in shader code. A range hint for scalar value with step, which limits possible input values between [member min] and [member max], with a step (increment) of [member step]). Translated to [code]hint_range(min, max, step)[/code] in shader code. Represents the size of the [enum Hint] enum.