import WebGLConstants from '../Core/WebGLConstants.js';
|
|
/**
|
* Determines the action taken based on the result of the stencil test.
|
*
|
* @exports StencilOperation
|
*/
|
var StencilOperation = {
|
/**
|
* Sets the stencil buffer value to zero.
|
*
|
* @type {Number}
|
* @constant
|
*/
|
ZERO : WebGLConstants.ZERO,
|
|
/**
|
* Does not change the stencil buffer.
|
*
|
* @type {Number}
|
* @constant
|
*/
|
KEEP : WebGLConstants.KEEP,
|
|
/**
|
* Replaces the stencil buffer value with the reference value.
|
*
|
* @type {Number}
|
* @constant
|
*/
|
REPLACE : WebGLConstants.REPLACE,
|
|
/**
|
* Increments the stencil buffer value, clamping to unsigned byte.
|
*
|
* @type {Number}
|
* @constant
|
*/
|
INCREMENT : WebGLConstants.INCR,
|
|
/**
|
* Decrements the stencil buffer value, clamping to zero.
|
*
|
* @type {Number}
|
* @constant
|
*/
|
DECREMENT : WebGLConstants.DECR,
|
|
/**
|
* Bitwise inverts the existing stencil buffer value.
|
*
|
* @type {Number}
|
* @constant
|
*/
|
INVERT : WebGLConstants.INVERT,
|
|
/**
|
* Increments the stencil buffer value, wrapping to zero when exceeding the unsigned byte range.
|
*
|
* @type {Number}
|
* @constant
|
*/
|
INCREMENT_WRAP : WebGLConstants.INCR_WRAP,
|
|
/**
|
* Decrements the stencil buffer value, wrapping to the maximum unsigned byte instead of going below zero.
|
*
|
* @type {Number}
|
* @constant
|
*/
|
DECREMENT_WRAP : WebGLConstants.DECR_WRAP
|
};
|
export default Object.freeze(StencilOperation);
|
