mirror of
https://github.com/tengge1/ShadowEditor.git
synced 2026-01-25 15:08:11 +00:00
137 lines
2.2 KiB
JavaScript
137 lines
2.2 KiB
JavaScript
/**
|
|
* @author sunag / http://www.sunag.com.br/
|
|
*/
|
|
|
|
import { TempNode } from '../core/TempNode.js';
|
|
import { NodeLib } from '../core/NodeLib.js';
|
|
|
|
function PositionNode( scope ) {
|
|
|
|
TempNode.call( this, 'v3' );
|
|
|
|
this.scope = scope || PositionNode.LOCAL;
|
|
|
|
}
|
|
|
|
PositionNode.LOCAL = 'local';
|
|
PositionNode.WORLD = 'world';
|
|
PositionNode.VIEW = 'view';
|
|
PositionNode.PROJECTION = 'projection';
|
|
|
|
PositionNode.prototype = Object.create( TempNode.prototype );
|
|
PositionNode.prototype.constructor = PositionNode;
|
|
PositionNode.prototype.nodeType = "Position";
|
|
|
|
PositionNode.prototype.getType = function ( ) {
|
|
|
|
switch ( this.scope ) {
|
|
|
|
case PositionNode.PROJECTION:
|
|
|
|
return 'v4';
|
|
|
|
}
|
|
|
|
return this.type;
|
|
|
|
};
|
|
|
|
PositionNode.prototype.getShared = function ( builder ) {
|
|
|
|
switch ( this.scope ) {
|
|
|
|
case PositionNode.LOCAL:
|
|
case PositionNode.WORLD:
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
return true;
|
|
|
|
};
|
|
|
|
PositionNode.prototype.generate = function ( builder, output ) {
|
|
|
|
var result;
|
|
|
|
switch ( this.scope ) {
|
|
|
|
case PositionNode.LOCAL:
|
|
|
|
builder.requires.position = true;
|
|
|
|
result = builder.isShader( 'vertex' ) ? 'transformed' : 'vPosition';
|
|
|
|
break;
|
|
|
|
case PositionNode.WORLD:
|
|
|
|
builder.requires.worldPosition = true;
|
|
|
|
result = 'vWPosition';
|
|
|
|
break;
|
|
|
|
case PositionNode.VIEW:
|
|
|
|
result = builder.isShader( 'vertex' ) ? '-mvPosition.xyz' : 'vViewPosition';
|
|
|
|
break;
|
|
|
|
case PositionNode.PROJECTION:
|
|
|
|
result = builder.isShader( 'vertex' ) ? '( projectionMatrix * modelViewMatrix * vec4( position, 1.0 ) )' : 'vec4( 0.0 )';
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return builder.format( result, this.getType( builder ), output );
|
|
|
|
};
|
|
|
|
PositionNode.prototype.copy = function ( source ) {
|
|
|
|
TempNode.prototype.copy.call( this, source );
|
|
|
|
this.scope = source.scope;
|
|
|
|
};
|
|
|
|
PositionNode.prototype.toJSON = function ( meta ) {
|
|
|
|
var data = this.getJSONNode( meta );
|
|
|
|
if ( ! data ) {
|
|
|
|
data = this.createJSONNode( meta );
|
|
|
|
data.scope = this.scope;
|
|
|
|
}
|
|
|
|
return data;
|
|
|
|
};
|
|
|
|
NodeLib.addKeyword( 'position', function () {
|
|
|
|
return new PositionNode();
|
|
|
|
} );
|
|
|
|
NodeLib.addKeyword( 'worldPosition', function () {
|
|
|
|
return new PositionNode( PositionNode.WORLD );
|
|
|
|
} );
|
|
|
|
NodeLib.addKeyword( 'viewPosition', function () {
|
|
|
|
return new PositionNode( NormalNode.VIEW );
|
|
|
|
} );
|
|
|
|
export { PositionNode };
|