earDepth,t.autoClearStencil),g&&(g.isCubeTexture||g.mapping===l)?(void 0===o&&(o=new Wn(new qn(1,1,1),new Jn({name:"BackgroundCubeMaterial",uniforms:Xn(di.cube.uniforms),vertexShader:di.cube.vertexShader,fragmentShader:di.cube.fragmentShader,side:1,depthTest:!1,depthWrite:!1,fog:!1})),o.geometry.deleteAttribute("normal"),o.geometry.deleteAttribute("uv"),o.onBeforeRender=function(t,e,n){this.matrixWorld.copyPosition(n.matrixWorld)},Object.defineProperty(o.material,"envMap",{get:function(){return this.uniforms.envMap.value}}),i.update(o)),o.material.uniforms.envMap.value=g,o.material.uniforms.flipEnvMap.value=g.isCubeTexture&&g._needsFlipEnvMap?-1:1,h===g&&u===g.version&&d===t.toneMapping||(o.material.needsUpdate=!0,h=g,u=g.version,d=t.toneMapping),n.unshift(o,o.geometry,o.material,0,0,null)):g&&g.isTexture&&(void 0===a&&(a=new Wn(new ci(2,2),new Jn({name:"BackgroundMaterial",uniforms:Xn(di.background.uniforms),vertexShader:di.background.vertexShader,fragmentShader:di.background.fragmentShader,side:0,depthTest:!1,depthWrite:!1,fog:!1})),a.geometry.deleteAttribute("normal"),Object.defineProperty(a.material,"map",{get:function(){return this.uniforms.t2D.value}}),i.update(a)),a.material.uniforms.t2D.value=g,!0===g.matrixAutoUpdate&&g.updateMatrix(),a.material.uniforms.uvTransform.value.copy(g.matrix),h===g&&u===g.version&&d===t.toneMapping||(a.material.needsUpdate=!0,h=g,u=g.version,d=t.toneMapping),n.unshift(a,a.geometry,a.material,0,0,null))}}}function mi(t,e,n,i){const r=t.getParameter(34921),s=i.isWebGL2?null:e.get("OES_vertex_array_object"),a=i.isWebGL2||null!==s,o={},l=d(null);let c=l;function h(e){return i.isWebGL2?t.bindVertexArray(e):s.bindVertexArrayOES(e)}function u(e){return i.isWebGL2?t.deleteVertexArray(e):s.deleteVertexArrayOES(e)}function d(t){const e=[],n=[],i=[];for(let t=0;t=0){const s=l[e];if(void 0!==s){const e=s.normalized,r=s.itemSize,a=n.get(s);if(void 0===a)continue;const l=a.buffer,c=a.type,h=a.bytesPerElement;if(s.isInterleavedBufferAttribute){const n=s.data,a=n.stride,u=s.offset;n&&n.isInstancedInterleavedBuffer?(f(i,n.meshPerAttribute),void 0===o._maxInstanceCount&&(o._maxInstanceCount=n.meshPerAttribute*n.count)):m(i),t.bindBuffer(34962,l),v(i,r,c,e,a*h,u*h)}else s.isInstancedBufferAttribute?(f(i,s.meshPerAttribute),void 0===o._maxInstanceCount&&(o._maxInstanceCount=s.meshPerAttribute*s.count)):m(i),t.bindBuffer(34962,l),v(i,r,c,e,0,0)}else if("instanceMatrix"===e){const e=n.get(r.instanceMatrix);if(void 0===e)continue;const s=e.buffer,a=e.type;f(i+0,1),f(i+1,1),f(i+2,1),f(i+3,1),t.bindBuffer(34962,s),t.vertexAttribPointer(i+0,4,a,!1,64,0),t.vertexAttribPointer(i+1,4,a,!1,64,16),t.vertexAttribPointer(i+2,4,a,!1,64,32),t.vertexAttribPointer(i+3,4,a,!1,64,48)}else if("instanceColor"===e){const e=n.get(r.instanceColor);if(void 0===e)continue;const s=e.buffer,a=e.type;f(i,1),t.bindBuffer(34962,s),t.vertexAttribPointer(i