62 lines
1.6 KiB
JavaScript
62 lines
1.6 KiB
JavaScript
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define([
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'../Core/freezeObject',
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'../Core/WebGLConstants'
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], function(
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freezeObject,
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WebGLConstants) {
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'use strict';
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/**
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* Determines how two pixels' values are combined.
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*
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* @exports BlendEquation
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*/
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var BlendEquation = {
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/**
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* Pixel values are added componentwise. This is used in additive blending for translucency.
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*
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* @type {Number}
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* @constant
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*/
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ADD : WebGLConstants.FUNC_ADD,
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/**
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* Pixel values are subtracted componentwise (source - destination). This is used in alpha blending for translucency.
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*
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* @type {Number}
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* @constant
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*/
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SUBTRACT : WebGLConstants.FUNC_SUBTRACT,
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/**
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* Pixel values are subtracted componentwise (destination - source).
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*
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* @type {Number}
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* @constant
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*/
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REVERSE_SUBTRACT : WebGLConstants.FUNC_REVERSE_SUBTRACT,
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/**
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* Pixel values are given to the minimum function (min(source, destination)).
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*
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* This equation operates on each pixel color component.
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*
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* @type {Number}
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* @constant
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*/
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MIN : WebGLConstants.MIN,
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/**
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* Pixel values are given to the maximum function (max(source, destination)).
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*
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* This equation operates on each pixel color component.
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*
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* @type {Number}
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* @constant
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*/
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MAX : WebGLConstants.MAX
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};
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return freezeObject(BlendEquation);
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});
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