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Merge pull request #19769 from Mugen87/dev43
Editor: Add view helper.
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Original file line number | Diff line number | Diff line change |
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/** | ||
* @author Mugen87 / https://github.com/Mugen87 | ||
*/ | ||
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import * as THREE from '../../build/three.module.js'; | ||
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function ViewHelper() { | ||
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THREE.Object3D.call( this ); | ||
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var camera = new THREE.OrthographicCamera( - 2, 2, 2, - 2, 0, 4 ); | ||
camera.position.set( 0, 0, 2 ); | ||
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var axesHelper = new THREE.AxesHelper(); | ||
this.add( axesHelper ); | ||
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var posXAxisHelper = new THREE.Sprite( new THREE.SpriteMaterial( { map: generateTexture( '#ff0000', 'X' ), toneMapped: false } ) ); | ||
var posYAxisHelper = new THREE.Sprite( new THREE.SpriteMaterial( { map: generateTexture( '#00ff00', 'Y' ), toneMapped: false } ) ); | ||
var posZAxisHelper = new THREE.Sprite( new THREE.SpriteMaterial( { map: generateTexture( '#0000ff', 'Z' ), toneMapped: false } ) ); | ||
var negXAxisHelper = new THREE.Sprite( new THREE.SpriteMaterial( { map: generateTexture( '#ff0000' ), toneMapped: false } ) ); | ||
var negYAxisHelper = new THREE.Sprite( new THREE.SpriteMaterial( { map: generateTexture( '#00ff00' ), toneMapped: false } ) ); | ||
var negZAxisHelper = new THREE.Sprite( new THREE.SpriteMaterial( { map: generateTexture( '#0000ff' ), toneMapped: false } ) ); | ||
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posXAxisHelper.position.x = 1; | ||
posYAxisHelper.position.y = 1; | ||
posZAxisHelper.position.z = 1; | ||
negXAxisHelper.position.x = - 1; | ||
negXAxisHelper.scale.setScalar( 0.8 ); | ||
negYAxisHelper.position.y = - 1; | ||
negYAxisHelper.scale.setScalar( 0.8 ); | ||
negZAxisHelper.position.z = - 1; | ||
negZAxisHelper.scale.setScalar( 0.8 ); | ||
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axesHelper.add( posXAxisHelper ); | ||
axesHelper.add( posYAxisHelper ); | ||
axesHelper.add( posZAxisHelper ); | ||
axesHelper.add( negXAxisHelper ); | ||
axesHelper.add( negYAxisHelper ); | ||
axesHelper.add( negZAxisHelper ); | ||
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var point = new THREE.Vector3(); | ||
var dim = 128; | ||
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this.render = function ( renderer, editorCamera, container ) { | ||
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this.quaternion.copy( editorCamera.quaternion ).inverse(); | ||
this.updateMatrixWorld(); | ||
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point.set( 0, 0, 1 ); | ||
point.applyQuaternion( editorCamera.quaternion ); | ||
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if ( point.x >= 0 ) { | ||
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posXAxisHelper.material.opacity = 1; | ||
negXAxisHelper.material.opacity = 0.5; | ||
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} else { | ||
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posXAxisHelper.material.opacity = 0.5; | ||
negXAxisHelper.material.opacity = 1; | ||
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} | ||
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if ( point.y >= 0 ) { | ||
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posYAxisHelper.material.opacity = 1; | ||
negYAxisHelper.material.opacity = 0.5; | ||
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} else { | ||
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posYAxisHelper.material.opacity = 0.5; | ||
negYAxisHelper.material.opacity = 1; | ||
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} | ||
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if ( point.z >= 0 ) { | ||
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posZAxisHelper.material.opacity = 1; | ||
negZAxisHelper.material.opacity = 0.5; | ||
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} else { | ||
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posZAxisHelper.material.opacity = 0.5; | ||
negZAxisHelper.material.opacity = 1; | ||
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} | ||
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// | ||
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var x = container.dom.offsetWidth - dim; | ||
var y = container.dom.offsetHeight - dim; | ||
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renderer.clearDepth(); | ||
renderer.setScissorTest( true ); | ||
renderer.setScissor( x, y, dim, dim ); | ||
renderer.setViewport( x, y, dim, dim ); | ||
renderer.render( this, camera ); | ||
renderer.setScissorTest( false ); | ||
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}; | ||
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function generateTexture( color, text = null ) { | ||
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var canvas = document.createElement( 'canvas' ); | ||
canvas.width = 64; | ||
canvas.height = 64; | ||
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var context = canvas.getContext( '2d' ); | ||
context.beginPath(); | ||
context.arc( 32, 32, 16, 0, 2 * Math.PI ); | ||
context.closePath(); | ||
context.fillStyle = color; | ||
context.fill(); | ||
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if ( text !== null ) { | ||
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context.font = '24px Arial'; | ||
context.textAlign = 'center'; | ||
context.fillStyle = '#000000'; | ||
context.fillText( text, 32, 41 ); | ||
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} | ||
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return new THREE.CanvasTexture( canvas ); | ||
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} | ||
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} | ||
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ViewHelper.prototype = Object.assign( Object.create( THREE.Object3D.prototype ), { | ||
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constructor: ViewHelper, | ||
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isViewHelper: true | ||
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} ); | ||
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export { ViewHelper }; |
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