0===a[n]&&(t.enableVertexAttribArray(n),a[n]=1),o[n]!==r){(i.isWebGL2?t:e.get("ANGLE_instanced_arrays"))[i.isWebGL2?"vertexAttribDivisor":"vertexAttribDivisorANGLE"](n,r),o[n]=r}}function g(){const e=c.newAttributes,n=c.enabledAttributes;for(let i=0,r=n.length;i=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,3,a,!1,12,0)}else if(void 0!==h){const n=h[e];if(void 0!==n)switch(n.length){case 2:t.vertexAttrib2fv(i,n);break;case 3:t.vertexAttrib3fv(i,n);break;case 4:t.vertexAttrib4fv(i,n);break;default:t.vertexAttrib1fv(i,n)}}}}g()}(r,l,u,y),null!==x&&t.bindBuffer(34963,n.get(x).buffer))},reset:y,resetDefaultState:x,dispose:function(){y();for(const t in o){const e=o[t];for(const t in e){const n=e[t];for(const t in n)u(n[t].object),delete n[t];delete e[t]}delete o[t]}},releaseStatesOfGeometry:function(t){if(void 0===o[t.id])return;const e=o[t.id];for(const t in e){const n=e[t];for(const t in n)u(n[t].object),delete n[t];delete e[t]}delete o[t.id]},releaseStatesOfProgram:function(t){for(const e in o){const n=o[e];if(void 0===n[t.id])continue;const i=n[t.id];for(const t in i)u(i[t].object),delete i[t];delete n[t.id]}},initAttributes:p,enableAttribute:m,disableUnusedAttributes:g}}function fi(t,e,n,i){const r=i.isWebGL2;let s;this.setMode=function(t){s=t},this.render=function(e,i){t.drawArrays(s,e,i),n.update(i,s,1)},this.renderInstances=function(i,a,o){if(0===o)return;let l,c;if(r)l=t,c="drawArraysInstanced";else if(l=e.get("ANGLE_instanced_arrays"),c="drawArraysInstancedANGLE",null===l)return void console.error("THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.");l[c](s,i,a,o),n.update(a,s,o)}}function gi(t,e,n){let i;function r(e){if("highp"===e){if(t.getShaderPrecisionFormat(35633,36338).precision>0&&t.getShaderPrecisionFormat(35632,36338).precision>0)return"highp";e="mediump"}return"mediump"===e&&t.getShaderPrecisionFormat(35633,36337).precision>0&&t.getShaderPrecisionFormat(35632,36337).precision>0?"mediump":"lowp"}const s="undefined"!=typeof WebGL2RenderingContext&&t instanceof WebGL2RenderingContext||"undefined"!=typeof WebGL2ComputeRenderingContext&&t instanceof WebGL2ComputeRenderingContext;let a=void 0!==n.precision?n.precision:"highp";const o=r(a);o!==a&&(console.warn("THREE.WebGLRenderer:",a,"not supported, using",o,"instead."),a=o);const l=!0===n.logarithmicDepthBuffer,c=t.getParameter(34930),h=t.getParameter(35660),u=t.getParameter(3379),d=t.getP