three
Version:
JavaScript 3D library
60 lines (31 loc) • 998 B
JavaScript
import { FloatNode } from '../inputs/FloatNode.js';
function MaxMIPLevelNode( texture ) {
FloatNode.call( this );
this.texture = texture;
this.maxMIPLevel = 0;
}
MaxMIPLevelNode.prototype = Object.create( FloatNode.prototype );
MaxMIPLevelNode.prototype.constructor = MaxMIPLevelNode;
MaxMIPLevelNode.prototype.nodeType = "MaxMIPLevel";
Object.defineProperties( MaxMIPLevelNode.prototype, {
value: {
get: function () {
if ( this.maxMIPLevel === 0 ) {
var image = this.texture.value.image;
if ( Array.isArray( image ) ) image = image[ 0 ];
this.maxMIPLevel = image !== undefined ? Math.log( Math.max( image.width, image.height ) ) * Math.LOG2E : 0;
}
return this.maxMIPLevel;
},
set: function () { }
}
} );
MaxMIPLevelNode.prototype.toJSON = function ( meta ) {
var data = this.getJSONNode( meta );
if ( ! data ) {
data = this.createJSONNode( meta );
data.texture = this.texture.uuid;
}
return data;
};
export { MaxMIPLevelNode };