File size: 1,578 Bytes
b797337 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 | function WebGLObjects( gl, geometries, attributes, info ) {
let updateMap = new WeakMap();
function update( object ) {
const frame = info.render.frame;
const geometry = object.geometry;
const buffergeometry = geometries.get( object, geometry );
// Update once per frame
if ( updateMap.get( buffergeometry ) !== frame ) {
geometries.update( buffergeometry );
updateMap.set( buffergeometry, frame );
}
if ( object.isInstancedMesh ) {
if ( object.hasEventListener( 'dispose', onInstancedMeshDispose ) === false ) {
object.addEventListener( 'dispose', onInstancedMeshDispose );
}
if ( updateMap.get( object ) !== frame ) {
attributes.update( object.instanceMatrix, gl.ARRAY_BUFFER );
if ( object.instanceColor !== null ) {
attributes.update( object.instanceColor, gl.ARRAY_BUFFER );
}
updateMap.set( object, frame );
}
}
if ( object.isSkinnedMesh ) {
const skeleton = object.skeleton;
if ( updateMap.get( skeleton ) !== frame ) {
skeleton.update();
updateMap.set( skeleton, frame );
}
}
return buffergeometry;
}
function dispose() {
updateMap = new WeakMap();
}
function onInstancedMeshDispose( event ) {
const instancedMesh = event.target;
instancedMesh.removeEventListener( 'dispose', onInstancedMeshDispose );
attributes.remove( instancedMesh.instanceMatrix );
if ( instancedMesh.instanceColor !== null ) attributes.remove( instancedMesh.instanceColor );
}
return {
update: update,
dispose: dispose
};
}
export { WebGLObjects };
|