diff --git a/build/three.js b/build/three.js
index bdfa471c4f496c465fc79d7c5d149d620711dab2..a40c257b6262ff434b73add69379a7a59a84e9db 100644
--- a/build/three.js
+++ b/build/three.js
@@ -14645,6 +14645,17 @@
 
 					};
 
+					// enable code injection for non-built-in material
+					Object.defineProperty( boxMesh.material, 'envMap', {
+
+						get: function () {
+
+							return this.uniforms.tCube.value;
+
+						}
+
+					} );
+
 					objects.update( boxMesh );
 
 				}
@@ -14675,6 +14686,17 @@
 
 					planeMesh.geometry.removeAttribute( 'normal' );
 
+					// enable code injection for non-built-in material
+					Object.defineProperty( planeMesh.material, 'map', {
+
+						get: function () {
+
+							return this.uniforms.t2D.value;
+
+						}
+
+					} );
+
 					objects.update( planeMesh );
 
 				}
diff --git a/build/three.min.js b/build/three.min.js
index 3b76e64818ccc7b5f0b455e492b5fd9e5f33b90a..c9cb3f67e36486901489d16b5210fe400c729e20 100644
--- a/build/three.min.js
+++ b/build/three.min.js
@@ -24,54 +24,55 @@ this.fragmentShader="void main() {\n\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );
 this.setValues(a))}function rb(a,b){this.origin=void 0!==a?a:new p;this.direction=void 0!==b?b:new p}function ha(a,b,c){this.a=void 0!==a?a:new p;this.b=void 0!==b?b:new p;this.c=void 0!==c?c:new p}function Ea(a){L.call(this);this.type="MeshBasicMaterial";this.color=new G(16777215);this.lightMap=this.map=null;this.lightMapIntensity=1;this.aoMap=null;this.aoMapIntensity=1;this.envMap=this.alphaMap=this.specularMap=null;this.combine=0;this.reflectivity=1;this.refractionRatio=.98;this.wireframe=!1;this.wireframeLinewidth=
 1;this.wireframeLinejoin=this.wireframeLinecap="round";this.lights=this.morphTargets=this.skinning=!1;this.setValues(a)}function pa(a,b){D.call(this);this.type="Mesh";this.geometry=void 0!==a?a:new E;this.material=void 0!==b?b:new Ea({color:16777215*Math.random()});this.drawMode=0;this.updateMorphTargets()}function Rf(a,b,c,d){function e(a,c){b.buffers.color.setClear(a.r,a.g,a.b,c,d)}var f=new G(0),g=0,h,k;return{getClearColor:function(){return f},setClearColor:function(a,b){f.set(a);g=void 0!==b?
 b:1;e(f,g)},getClearAlpha:function(){return g},setClearAlpha:function(a){g=a;e(f,g)},render:function(b,d,n,r){d=d.background;null===d?e(f,g):d&&d.isColor&&(e(d,1),r=!0);(a.autoClear||r)&&a.clear(a.autoClearColor,a.autoClearDepth,a.autoClearStencil);d&&(d.isCubeTexture||d.isWebGLRenderTargetCube)?(void 0===k&&(k=new pa(new pb(1,1,1),new ka({type:"BackgroundCubeMaterial",uniforms:va.clone(Qa.cube.uniforms),vertexShader:Qa.cube.vertexShader,fragmentShader:Qa.cube.fragmentShader,side:1,depthTest:!0,depthWrite:!1,
-fog:!1})),k.geometry.removeAttribute("normal"),k.geometry.removeAttribute("uv"),k.onBeforeRender=function(a,b,c){this.matrixWorld.copyPosition(c.matrixWorld)},c.update(k)),k.material.uniforms.tCube.value=d.isWebGLRenderTargetCube?d.texture:d,k.material.uniforms.tFlip.value=d.isWebGLRenderTargetCube?1:-1,b.push(k,k.geometry,k.material,0,null)):d&&d.isTexture&&(void 0===h&&(h=new pa(new qb(2,2),new ka({type:"BackgroundMaterial",uniforms:va.clone(Qa.background.uniforms),vertexShader:Qa.background.vertexShader,
-fragmentShader:Qa.background.fragmentShader,side:0,depthTest:!0,depthWrite:!1,fog:!1})),h.geometry.removeAttribute("normal"),c.update(h)),h.material.uniforms.t2D.value=d,!0===d.matrixAutoUpdate&&d.updateMatrix(),h.material.uniforms.uvTransform.value.copy(d.matrix),b.push(h,h.geometry,h.material,0,null))}}}function Sf(a,b,c,d){var e;this.setMode=function(a){e=a};this.render=function(b,d){a.drawArrays(e,b,d);c.update(d,e)};this.renderInstances=function(f,g,h){if(d.isWebGL2)var k=a;else if(k=b.get("ANGLE_instanced_arrays"),
-null===k){console.error("THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.");return}k[d.isWebGL2?"drawArraysInstanced":"drawArraysInstancedANGLE"](e,g,h,f.maxInstancedCount);c.update(h,e,f.maxInstancedCount)}}function Tf(a,b,c){function d(b){if("highp"===b){if(0<a.getShaderPrecisionFormat(35633,36338).precision&&0<a.getShaderPrecisionFormat(35632,36338).precision)return"highp";b="mediump"}return"mediump"===b&&0<a.getShaderPrecisionFormat(35633,
-36337).precision&&0<a.getShaderPrecisionFormat(35632,36337).precision?"mediump":"lowp"}var e,f="undefined"!==typeof WebGL2RenderingContext&&a instanceof WebGL2RenderingContext,g=void 0!==c.precision?c.precision:"highp",h=d(g);h!==g&&(console.warn("THREE.WebGLRenderer:",g,"not supported, using",h,"instead."),g=h);c=!0===c.logarithmicDepthBuffer;h=a.getParameter(34930);var k=a.getParameter(35660),m=a.getParameter(3379),q=a.getParameter(34076),n=a.getParameter(34921),r=a.getParameter(36347),x=a.getParameter(36348),
-t=a.getParameter(36349),l=0<k,w=f||!!b.get("OES_texture_float");return{isWebGL2:f,getMaxAnisotropy:function(){if(void 0!==e)return e;var c=b.get("EXT_texture_filter_anisotropic");return e=null!==c?a.getParameter(c.MAX_TEXTURE_MAX_ANISOTROPY_EXT):0},getMaxPrecision:d,precision:g,logarithmicDepthBuffer:c,maxTextures:h,maxVertexTextures:k,maxTextureSize:m,maxCubemapSize:q,maxAttributes:n,maxVertexUniforms:r,maxVaryings:x,maxFragmentUniforms:t,vertexTextures:l,floatFragmentTextures:w,floatVertexTextures:l&&
-w}}function Uf(){function a(){m.value!==d&&(m.value=d,m.needsUpdate=0<e);c.numPlanes=e;c.numIntersection=0}function b(a,b,d,e){var f=null!==a?a.length:0,g=null;if(0!==f){g=m.value;if(!0!==e||null===g){e=d+4*f;b=b.matrixWorldInverse;k.getNormalMatrix(b);if(null===g||g.length<e)g=new Float32Array(e);for(e=0;e!==f;++e,d+=4)h.copy(a[e]).applyMatrix4(b,k),h.normal.toArray(g,d),g[d+3]=h.constant}m.value=g;m.needsUpdate=!0}c.numPlanes=f;return g}var c=this,d=null,e=0,f=!1,g=!1,h=new Pa,k=new da,m={value:null,
-needsUpdate:!1};this.uniform=m;this.numIntersection=this.numPlanes=0;this.init=function(a,c,g){var h=0!==a.length||c||0!==e||f;f=c;d=b(a,g,0);e=a.length;return h};this.beginShadows=function(){g=!0;b(null)};this.endShadows=function(){g=!1;a()};this.setState=function(c,h,k,x,l,u){if(!f||null===c||0===c.length||g&&!k)g?b(null):a();else{k=g?0:e;var n=4*k,q=l.clippingState||null;m.value=q;q=b(c,x,n,u);for(c=0;c!==n;++c)q[c]=d[c];l.clippingState=q;this.numIntersection=h?this.numPlanes:0;this.numPlanes+=
-k}}}function Vf(a){var b={};return{get:function(c){if(void 0!==b[c])return b[c];switch(c){case "WEBGL_depth_texture":var d=a.getExtension("WEBGL_depth_texture")||a.getExtension("MOZ_WEBGL_depth_texture")||a.getExtension("WEBKIT_WEBGL_depth_texture");break;case "EXT_texture_filter_anisotropic":d=a.getExtension("EXT_texture_filter_anisotropic")||a.getExtension("MOZ_EXT_texture_filter_anisotropic")||a.getExtension("WEBKIT_EXT_texture_filter_anisotropic");break;case "WEBGL_compressed_texture_s3tc":d=
-a.getExtension("WEBGL_compressed_texture_s3tc")||a.getExtension("MOZ_WEBGL_compressed_texture_s3tc")||a.getExtension("WEBKIT_WEBGL_compressed_texture_s3tc");break;case "WEBGL_compressed_texture_pvrtc":d=a.getExtension("WEBGL_compressed_texture_pvrtc")||a.getExtension("WEBKIT_WEBGL_compressed_texture_pvrtc");break;default:d=a.getExtension(c)}null===d&&console.warn("THREE.WebGLRenderer: "+c+" extension not supported.");return b[c]=d}}}function Wf(a,b,c){function d(a){var g=a.target;a=e[g.id];null!==
-a.index&&b.remove(a.index);for(var k in a.attributes)b.remove(a.attributes[k]);g.removeEventListener("dispose",d);delete e[g.id];if(k=f[a.id])b.remove(k),delete f[a.id];c.memory.geometries--}var e={},f={};return{get:function(a,b){var f=e[b.id];if(f)return f;b.addEventListener("dispose",d);b.isBufferGeometry?f=b:b.isGeometry&&(void 0===b._bufferGeometry&&(b._bufferGeometry=(new E).setFromObject(a)),f=b._bufferGeometry);e[b.id]=f;c.memory.geometries++;return f},update:function(a){var c=a.index,d=a.attributes;
-null!==c&&b.update(c,34963);for(var e in d)b.update(d[e],34962);a=a.morphAttributes;for(e in a){c=a[e];d=0;for(var f=c.length;d<f;d++)b.update(c[d],34962)}},getWireframeAttribute:function(a){var c=f[a.id];if(c)return c;c=[];var d=a.index,e=a.attributes;if(null!==d){d=d.array;e=0;for(var g=d.length;e<g;e+=3){var n=d[e+0],r=d[e+1],x=d[e+2];c.push(n,r,r,x,x,n)}}else for(d=e.position.array,e=0,g=d.length/3-1;e<g;e+=3)n=e+0,r=e+1,x=e+2,c.push(n,r,r,x,x,n);c=new (65535<Je(c)?ob:nb)(c,1);b.update(c,34963);
-return f[a.id]=c}}}function Xf(a,b,c,d){var e,f,g;this.setMode=function(a){e=a};this.setIndex=function(a){f=a.type;g=a.bytesPerElement};this.render=function(b,d){a.drawElements(e,d,f,b*g);c.update(d,e)};this.renderInstances=function(h,k,m){if(d.isWebGL2)var q=a;else if(q=b.get("ANGLE_instanced_arrays"),null===q){console.error("THREE.WebGLIndexedBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.");return}q[d.isWebGL2?"drawElementsInstanced":
-"drawElementsInstancedANGLE"](e,m,f,k*g,h.maxInstancedCount);c.update(m,e,h.maxInstancedCount)}}function Yf(a){var b={frame:0,calls:0,triangles:0,points:0,lines:0};return{memory:{geometries:0,textures:0},render:b,programs:null,autoReset:!0,reset:function(){b.frame++;b.calls=0;b.triangles=0;b.points=0;b.lines=0},update:function(a,d,e){e=e||1;b.calls++;switch(d){case 4:b.triangles+=a/3*e;break;case 5:case 6:b.triangles+=e*(a-2);break;case 1:b.lines+=a/2*e;break;case 3:b.lines+=e*(a-1);break;case 2:b.lines+=
-e*a;break;case 0:b.points+=e*a;break;default:console.error("THREE.WebGLInfo: Unknown draw mode:",d)}}}}function Zf(a,b){return Math.abs(b[1])-Math.abs(a[1])}function $f(a){var b={},c=new Float32Array(8);return{update:function(d,e,f,g){var h=d.morphTargetInfluences,k=h.length;d=b[e.id];if(void 0===d){d=[];for(var m=0;m<k;m++)d[m]=[m,0];b[e.id]=d}var q=f.morphTargets&&e.morphAttributes.position;f=f.morphNormals&&e.morphAttributes.normal;for(m=0;m<k;m++){var n=d[m];0!==n[1]&&(q&&e.removeAttribute("morphTarget"+
-m),f&&e.removeAttribute("morphNormal"+m))}for(m=0;m<k;m++)n=d[m],n[0]=m,n[1]=h[m];d.sort(Zf);for(m=0;8>m;m++){if(n=d[m])if(h=n[0],k=n[1]){q&&e.addAttribute("morphTarget"+m,q[h]);f&&e.addAttribute("morphNormal"+m,f[h]);c[m]=k;continue}c[m]=0}g.getUniforms().setValue(a,"morphTargetInfluences",c)}}}function ag(a,b){var c={};return{update:function(d){var e=b.render.frame,f=d.geometry,g=a.get(d,f);c[g.id]!==e&&(f.isGeometry&&g.updateFromObject(d),a.update(g),c[g.id]=e);return g},dispose:function(){c={}}}}
-function Ya(a,b,c,d,e,f,g,h,k,m){a=void 0!==a?a:[];W.call(this,a,void 0!==b?b:301,c,d,e,f,g,h,k,m);this.flipY=!1}function Mb(a,b,c,d){W.call(this,null);this.image={data:a,width:b,height:c,depth:d};this.minFilter=this.magFilter=1003;this.flipY=this.generateMipmaps=!1}function Nb(a,b,c){var d=a[0];if(0>=d||0<d)return a;var e=b*c,f=Ke[e];void 0===f&&(f=new Float32Array(e),Ke[e]=f);if(0!==b)for(d.toArray(f,0),d=1,e=0;d!==b;++d)e+=c,a[d].toArray(f,e);return f}function ea(a,b){if(a.length!==b.length)return!1;
-for(var c=0,d=a.length;c<d;c++)if(a[c]!==b[c])return!1;return!0}function sa(a,b){for(var c=0,d=b.length;c<d;c++)a[c]=b[c]}function Le(a,b){var c=Me[b];void 0===c&&(c=new Int32Array(b),Me[b]=c);for(var d=0;d!==b;++d)c[d]=a.allocTextureUnit();return c}function bg(a,b){var c=this.cache;c[0]!==b&&(a.uniform1f(this.addr,b),c[0]=b)}function cg(a,b){var c=this.cache;c[0]!==b&&(a.uniform1i(this.addr,b),c[0]=b)}function dg(a,b){var c=this.cache;if(void 0!==b.x){if(c[0]!==b.x||c[1]!==b.y)a.uniform2f(this.addr,
-b.x,b.y),c[0]=b.x,c[1]=b.y}else ea(c,b)||(a.uniform2fv(this.addr,b),sa(c,b))}function eg(a,b){var c=this.cache;if(void 0!==b.x){if(c[0]!==b.x||c[1]!==b.y||c[2]!==b.z)a.uniform3f(this.addr,b.x,b.y,b.z),c[0]=b.x,c[1]=b.y,c[2]=b.z}else if(void 0!==b.r){if(c[0]!==b.r||c[1]!==b.g||c[2]!==b.b)a.uniform3f(this.addr,b.r,b.g,b.b),c[0]=b.r,c[1]=b.g,c[2]=b.b}else ea(c,b)||(a.uniform3fv(this.addr,b),sa(c,b))}function fg(a,b){var c=this.cache;if(void 0!==b.x){if(c[0]!==b.x||c[1]!==b.y||c[2]!==b.z||c[3]!==b.w)a.uniform4f(this.addr,
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-void 0===d?ea(c,b)||(a.uniformMatrix4fv(this.addr,!1,b),sa(c,b)):ea(c,d)||(Pe.set(d),a.uniformMatrix4fv(this.addr,!1,Pe),sa(c,d))}function jg(a,b,c){var d=this.cache,e=c.allocTextureUnit();d[0]!==e&&(a.uniform1i(this.addr,e),d[0]=e);c.setTexture2D(b||Qe,e)}function kg(a,b,c){var d=this.cache,e=c.allocTextureUnit();d[0]!==e&&(a.uniform1i(this.addr,e),d[0]=e);c.setTexture3D(b||lg,e)}function mg(a,b,c){var d=this.cache,e=c.allocTextureUnit();d[0]!==e&&(a.uniform1i(this.addr,e),d[0]=e);c.setTextureCube(b||
-Re,e)}function Se(a,b){var c=this.cache;ea(c,b)||(a.uniform2iv(this.addr,b),sa(c,b))}function Te(a,b){var c=this.cache;ea(c,b)||(a.uniform3iv(this.addr,b),sa(c,b))}function Ue(a,b){var c=this.cache;ea(c,b)||(a.uniform4iv(this.addr,b),sa(c,b))}function ng(a){switch(a){case 5126:return bg;case 35664:return dg;case 35665:return eg;case 35666:return fg;case 35674:return gg;case 35675:return hg;case 35676:return ig;case 35678:case 36198:return jg;case 35679:return kg;case 35680:return mg;case 5124:case 35670:return cg;
-case 35667:case 35671:return Se;case 35668:case 35672:return Te;case 35669:case 35673:return Ue}}function og(a,b){var c=this.cache;ea(c,b)||(a.uniform1fv(this.addr,b),sa(c,b))}function pg(a,b){var c=this.cache;ea(c,b)||(a.uniform1iv(this.addr,b),sa(c,b))}function qg(a,b){var c=this.cache;b=Nb(b,this.size,2);ea(c,b)||(a.uniform2fv(this.addr,b),this.updateCache(b))}function rg(a,b){var c=this.cache;b=Nb(b,this.size,3);ea(c,b)||(a.uniform3fv(this.addr,b),this.updateCache(b))}function sg(a,b){var c=this.cache;
-b=Nb(b,this.size,4);ea(c,b)||(a.uniform4fv(this.addr,b),this.updateCache(b))}function tg(a,b){var c=this.cache;b=Nb(b,this.size,4);ea(c,b)||(a.uniformMatrix2fv(this.addr,!1,b),this.updateCache(b))}function ug(a,b){var c=this.cache;b=Nb(b,this.size,9);ea(c,b)||(a.uniformMatrix3fv(this.addr,!1,b),this.updateCache(b))}function vg(a,b){var c=this.cache;b=Nb(b,this.size,16);ea(c,b)||(a.uniformMatrix4fv(this.addr,!1,b),this.updateCache(b))}function wg(a,b,c){var d=this.cache,e=b.length,f=Le(c,e);!1===ea(d,
-f)&&(a.uniform1iv(this.addr,f),sa(d,f));for(a=0;a!==e;++a)c.setTexture2D(b[a]||Qe,f[a])}function xg(a,b,c){var d=this.cache,e=b.length,f=Le(c,e);!1===ea(d,f)&&(a.uniform1iv(this.addr,f),sa(d,f));for(a=0;a!==e;++a)c.setTextureCube(b[a]||Re,f[a])}function yg(a){switch(a){case 5126:return og;case 35664:return qg;case 35665:return rg;case 35666:return sg;case 35674:return tg;case 35675:return ug;case 35676:return vg;case 35678:return wg;case 35680:return xg;case 5124:case 35670:return pg;case 35667:case 35671:return Se;
-case 35668:case 35672:return Te;case 35669:case 35673:return Ue}}function zg(a,b,c){this.id=a;this.addr=c;this.cache=[];this.setValue=ng(b.type)}function Ve(a,b,c){this.id=a;this.addr=c;this.cache=[];this.size=b.size;this.setValue=yg(b.type)}function We(a){this.id=a;this.seq=[];this.map={}}function db(a,b,c){this.seq=[];this.map={};this.renderer=c;c=a.getProgramParameter(b,35718);for(var d=0;d<c;++d){var e=a.getActiveUniform(b,d),f=a.getUniformLocation(b,e.name),g=this,h=e.name,k=h.length;for($d.lastIndex=
-0;;){var m=$d.exec(h),q=$d.lastIndex,n=m[1],r=m[3];"]"===m[2]&&(n|=0);if(void 0===r||"["===r&&q+2===k){h=g;e=void 0===r?new zg(n,e,f):new Ve(n,e,f);h.seq.push(e);h.map[e.id]=e;break}else r=g.map[n],void 0===r&&(r=new We(n),n=g,g=r,n.seq.push(g),n.map[g.id]=g),g=r}}}function Ag(a){a=a.split("\n");for(var b=0;b<a.length;b++)a[b]=b+1+": "+a[b];return a.join("\n")}function Xe(a,b,c){var d=a.createShader(b);a.shaderSource(d,c);a.compileShader(d);!1===a.getShaderParameter(d,35713)&&console.error("THREE.WebGLShader: Shader couldn't compile.");
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 var l=a.getRenderTarget();return{shaderID:h,precision:m,supportsVertexTextures:c.vertexTextures,outputEncoding:d(l?l.texture:null,a.gammaOutput),map:!!b.map,mapEncoding:d(b.map,a.gammaInput),matcap:!!b.matcap,matcapEncoding:d(b.matcap,a.gammaInput),envMap:!!b.envMap,envMapMode:b.envMap&&b.envMap.mapping,envMapEncoding:d(b.envMap,a.gammaInput),envMapCubeUV:!!b.envMap&&(306===b.envMap.mapping||307===b.envMap.mapping),lightMap:!!b.lightMap,aoMap:!!b.aoMap,emissiveMap:!!b.emissiveMap,emissiveMapEncoding:d(b.emissiveMap,
 a.gammaInput),bumpMap:!!b.bumpMap,normalMap:!!b.normalMap,objectSpaceNormalMap:1===b.normalMapType,displacementMap:!!b.displacementMap,roughnessMap:!!b.roughnessMap,metalnessMap:!!b.metalnessMap,specularMap:!!b.specularMap,alphaMap:!!b.alphaMap,gradientMap:!!b.gradientMap,combine:b.combine,vertexColors:b.vertexColors,fog:!!q,useFog:b.fog,fogExp:q&&q.isFogExp2,flatShading:b.flatShading,sizeAttenuation:b.sizeAttenuation,logarithmicDepthBuffer:c.logarithmicDepthBuffer,skinning:b.skinning&&0<k,maxBones:k,
diff --git a/build/three.module.js b/build/three.module.js
index 873b7939356aed567521197558ff3281c82ffa64..83168bb6e53961ef0ea4979018122d568eca2cfa 100644
--- a/build/three.module.js
+++ b/build/three.module.js
@@ -14639,6 +14639,17 @@ function WebGLBackground( renderer, state, objects, premultipliedAlpha ) {
 
 				};
 
+				// enable code injection for non-built-in material
+				Object.defineProperty( boxMesh.material, 'envMap', {
+
+					get: function () {
+
+						return this.uniforms.tCube.value;
+
+					}
+
+				} );
+
 				objects.update( boxMesh );
 
 			}
@@ -14669,6 +14680,17 @@ function WebGLBackground( renderer, state, objects, premultipliedAlpha ) {
 
 				planeMesh.geometry.removeAttribute( 'normal' );
 
+				// enable code injection for non-built-in material
+				Object.defineProperty( planeMesh.material, 'map', {
+
+					get: function () {
+
+						return this.uniforms.t2D.value;
+
+					}
+
+				} );
+
 				objects.update( planeMesh );
 
 			}