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simplify cache code

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This commit is contained in:
Stewart Allen 2022-01-08 16:54:09 -05:00
commit 6921142949
1 changed files with 3 additions and 7 deletions
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10
src/mesh/api.js
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@ -384,18 +384,14 @@ let util = mesh.util = {
let matrix = object.matrixWorld; let matrix = object.matrixWorld;
let bkey = [matrix.elements.map(v => v.round(5))].join(',') let bkey = [matrix.elements.map(v => v.round(5))].join(',')
let cached = boundsCache[object.id]; let cached = boundsCache[object.id];
let bounds;
if (!cached || cached.bkey !== bkey) { if (!cached || cached.bkey !== bkey) {
let position = geometry.attributes.position.clone(); let position = geometry.attributes.position.clone();
position.applyMatrix4(new THREE.Matrix4().extractRotation(matrix)); position.applyMatrix4(new THREE.Matrix4().extractRotation(matrix));
bounds = new THREE.Box3().setFromBufferAttribute(position); cached = boundsCache[object.id] = { bkey,
cached = boundsCache[object.id] = { bounds: new THREE.Box3().setFromBufferAttribute(position)
bkey,
bounds
}; };
} }
bounds = cached.bounds.clone(); let bt = cached.bounds.clone();
let bt = new THREE.Box3().copy(bounds);
let m4 = new THREE.Matrix4(); let m4 = new THREE.Matrix4();
m4.setPosition(new THREE.Vector3().setFromMatrixPosition(object.matrixWorld)); m4.setPosition(new THREE.Vector3().setFromMatrixPosition(object.matrixWorld));
bt.applyMatrix4(m4); bt.applyMatrix4(m4);