Function matDefineBool

matDefineBool(
    key?: string | symbol,
    customDefines?: any,
    thisMat?: boolean,
    onChange?: (...args: any[]) => any,
    deleteOnFalse?: boolean,
): PropertyDecorator
Same as matDefine but for boolean values. It sets the value to '1' or '0'/undefined.
Parameters
- Optionalkey: string | symbol
  define name
- OptionalcustomDefines: any
  object for setting define value (like ShaderMaterial.defines), otherwise this.material.defines is taken
- thisMat: boolean = false
  access this.defines instead of this.material.defines
- OptionalonChange: (...args: any[]) => any
  function to call when the value changes. If a string, it is used as a property name in this and called. If a function, it is called. The function is called with the following parameters: key, newVal
- deleteOnFalse: boolean = false
  sets to undefined instead of '0' when false. Note deleteOnFalse doesn't work with tweakpane ui because the value will be undefined.
Returns PropertyDecorator
- Defined in src/three/utils/decorators.ts:122