three
Version:
JavaScript 3D library
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JavaScript
import { attribute } from '../core/AttributeNode.js';
import { Fn } from '../tsl/TSLCore.js';
import { modelWorldMatrix } from './ModelNode.js';
/**
* TSL object that represents the position attribute of the current rendered object.
*
* @tsl
* @type {AttributeNode<vec3>}
*/
export const positionGeometry = /*@__PURE__*/ attribute( 'position', 'vec3' );
/**
* TSL object that represents the vertex position in local space of the current rendered object.
*
* @tsl
* @type {AttributeNode<vec3>}
*/
export const positionLocal = /*@__PURE__*/ positionGeometry.toVarying( 'positionLocal' );
/**
* TSL object that represents the previous vertex position in local space of the current rendered object.
* Used in context of {@link VelocityNode} for rendering motion vectors.
*
* @tsl
* @type {AttributeNode<vec3>}
*/
export const positionPrevious = /*@__PURE__*/ positionGeometry.toVarying( 'positionPrevious' );
/**
* TSL object that represents the vertex position in world space of the current rendered object.
*
* @tsl
* @type {VaryingNode<vec3>}
*/
export const positionWorld = /*@__PURE__*/ ( Fn( ( builder ) => {
return modelWorldMatrix.mul( positionLocal ).xyz.toVarying( builder.getNamespace( 'v_positionWorld' ) );
}, 'vec3' ).once( 'POSITION' ) )();
/**
* TSL object that represents the position world direction of the current rendered object.
*
* @tsl
* @type {Node<vec3>}
*/
export const positionWorldDirection = /*@__PURE__*/ ( Fn( ( builder ) => {
const vertexPWD = positionLocal.transformDirection( modelWorldMatrix ).toVarying( builder.getNamespace( 'v_positionWorldDirection' ) );
return vertexPWD.normalize().toVar( 'positionWorldDirection' );
}, 'vec3' ).once( 'POSITION' ) )();
/**
* TSL object that represents the vertex position in view space of the current rendered object.
*
* @tsl
* @type {VaryingNode<vec3>}
*/
export const positionView = /*@__PURE__*/ ( Fn( ( builder ) => {
return builder.context.setupPositionView().toVarying( builder.getNamespace( 'v_positionView' ) );
}, 'vec3' ).once( 'POSITION' ) )();
/**
* TSL object that represents the position view direction of the current rendered object.
*
* @tsl
* @type {VaryingNode<vec3>}
*/
export const positionViewDirection = /*@__PURE__*/ positionView.negate().toVarying( 'v_positionViewDirection' ).normalize().toVar( 'positionViewDirection' );