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https://github.com/tengge1/ShadowEditor.git
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97 lines
2.1 KiB
JavaScript
97 lines
2.1 KiB
JavaScript
/**
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* @author sunag / http://www.sunag.com.br/
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*/
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THREE.Math2Node = function( a, b, method ) {
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THREE.TempNode.call( this );
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this.a = a;
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this.b = b;
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this.method = method || THREE.Math2Node.DISTANCE;
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};
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THREE.Math2Node.MIN = 'min';
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THREE.Math2Node.MAX = 'max';
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THREE.Math2Node.MOD = 'mod';
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THREE.Math2Node.STEP = 'step';
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THREE.Math2Node.REFLECT = 'reflect';
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THREE.Math2Node.DISTANCE = 'distance';
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THREE.Math2Node.DOT = 'dot';
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THREE.Math2Node.CROSS = 'cross';
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THREE.Math2Node.POW = 'pow';
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THREE.Math2Node.prototype = Object.create( THREE.TempNode.prototype );
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THREE.Math2Node.prototype.constructor = THREE.Math2Node;
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THREE.Math2Node.prototype.getInputType = function( builder ) {
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// use the greater length vector
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if ( builder.getFormatLength( this.b.getType( builder ) ) > builder.getFormatLength( this.a.getType( builder ) ) ) {
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return this.b.getType( builder );
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}
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return this.a.getType( builder );
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};
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THREE.Math2Node.prototype.getType = function( builder ) {
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switch ( this.method ) {
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case THREE.Math2Node.DISTANCE:
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case THREE.Math2Node.DOT:
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return 'fv1';
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case THREE.Math2Node.CROSS:
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return 'v3';
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}
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return this.getInputType( builder );
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};
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THREE.Math2Node.prototype.generate = function( builder, output ) {
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var material = builder.material;
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var type = this.getInputType( builder );
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var a, b,
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al = builder.getFormatLength( this.a.getType( builder ) ),
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bl = builder.getFormatLength( this.b.getType( builder ) );
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// optimzer
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switch ( this.method ) {
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case THREE.Math2Node.CROSS:
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a = this.a.build( builder, 'v3' );
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b = this.b.build( builder, 'v3' );
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break;
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case THREE.Math2Node.STEP:
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a = this.a.build( builder, al == 1 ? 'fv1' : type );
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b = this.b.build( builder, type );
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break;
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case THREE.Math2Node.MIN:
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case THREE.Math2Node.MAX:
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case THREE.Math2Node.MOD:
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a = this.a.build( builder, type );
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b = this.b.build( builder, bl == 1 ? 'fv1' : type );
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break;
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default:
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a = this.a.build( builder, type );
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b = this.b.build( builder, type );
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break;
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}
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return builder.format( this.method + '(' + a + ',' + b + ')', this.getType( builder ), output );
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};
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