display a random face

1 files changed, 10 insertions, 39 deletions

diff --git a/client/splash/face/mesh.js b/client/splash/face/mesh.js
index efa9530e..69a40900 100644
--- a/client/splash/face/mesh.js
+++ b/client/splash/face/mesh.js
@@ -5,7 +5,12 @@ import { scene } from '../renderer'
 import DRACOLoader from '../../util/vendor/DRACOLoader'
 import GeometryHelper from '../../util/vendor/geometryHelper'
 
+import { getBboxScaleAndCentroid } from './util'
+
+import { FACE_SCALE } from '../constants'
+
 DRACOLoader.setDecoderPath('/assets/js/vendor/draco/')
+
 const dracoLoader = new DRACOLoader()
 DRACOLoader.getDecoderModule()
 
@@ -14,17 +19,6 @@ export function load(name) {
   dracoLoader.setDrawMode(TrianglesDrawMode)
   dracoLoader.setSkipDequantization('position', true)
   dracoLoader.load('/assets/data/faces/' + name + '.drc', dracoDidLoad)
-  // dracoLoader.load('/assets/data/faces/' + name + '.drc', (geometry) => {
-  //   geometry.computeVertexNormals()
-
-  //   const material = new MeshBasicMaterial({ vertexColors: VertexColors })
-  //   const mesh = new Mesh(geometry, material)
-  //   scene.add(mesh)
-  //   console.log(name)
-
-  //   // Release the cached decoder module.
-  //   DRACOLoader.releaseDecoderModule()
-  // })
 }
 
 export function update(name) {
@@ -49,11 +43,7 @@ function setDequantizationForMaterial(material, bufferGeometry) {
   }
 }
 
-export function dracoDidLoad(bufferGeometry) {
-  // if (dracoLoader.decode_time !== undefined) {
-  //   fileDisplayArea.innerText = 'Decode time = ' + dracoLoader.decode_time + '\n' +
-  //                               'Import time = ' + dracoLoader.import_time
-  // }
+function dracoDidLoad(bufferGeometry) {
   const material = new MeshBasicMaterial({ vertexColors: VertexColors })
   material.wireframe = true
   // If the position attribute is quantized, modify the material to perform
@@ -77,32 +67,13 @@ export function dracoDidLoad(bufferGeometry) {
 
   // Compute range of the geometry coordinates for proper rendering.
   bufferGeometry.computeBoundingBox()
-  if (bufferGeometry.attributes.position.isQuantized) {
-    // If the geometry is quantized, transform the bounding box to the dequantized
-    // coordinates.
-    const posAttribute = bufferGeometry.attributes.position
-    const normConstant = posAttribute.maxRange / (1 << posAttribute.numQuantizationBits)
-    const minPos = posAttribute.minValues
-    bufferGeometry.boundingBox.max.x = minPos[0] + bufferGeometry.boundingBox.max.x * normConstant
-    bufferGeometry.boundingBox.max.y = minPos[1] + bufferGeometry.boundingBox.max.y * normConstant
-    bufferGeometry.boundingBox.max.z = minPos[2] + bufferGeometry.boundingBox.max.z * normConstant
-    bufferGeometry.boundingBox.min.x = minPos[0] + bufferGeometry.boundingBox.min.x * normConstant
-    bufferGeometry.boundingBox.min.y = minPos[1] + bufferGeometry.boundingBox.min.y * normConstant
-    bufferGeometry.boundingBox.min.z = minPos[2] + bufferGeometry.boundingBox.min.z * normConstant
-  }
-  const sizeX = bufferGeometry.boundingBox.max.x - bufferGeometry.boundingBox.min.x
-  const sizeY = bufferGeometry.boundingBox.max.y - bufferGeometry.boundingBox.min.y
-  const sizeZ = bufferGeometry.boundingBox.max.z - bufferGeometry.boundingBox.min.z
-  const diagonalSize = Math.sqrt(sizeX * sizeX + sizeY * sizeY + sizeZ * sizeZ)
-  const scale = 1.0 / diagonalSize
-  const midX = (bufferGeometry.boundingBox.min.x + bufferGeometry.boundingBox.max.x) / 2
-  const midY = (bufferGeometry.boundingBox.min.y + bufferGeometry.boundingBox.max.y) / 2
-  const midZ = (bufferGeometry.boundingBox.min.z + bufferGeometry.boundingBox.max.z) / 2
-
-  geometry.scale.multiplyScalar(scale)
+  const bbox = bufferGeometry.boundingBox
+  const { scale, midX, midY, midZ } = getBboxScaleAndCentroid(bbox, bufferGeometry.attributes.position)
+  geometry.scale.multiplyScalar(scale * FACE_SCALE)
   geometry.position.x = -midX * scale
   geometry.position.y = -midY * scale
   geometry.position.z = -midZ * scale
+  geometry.frustumCulled = false
   // geometry.castShadow = true
   // geometry.receiveShadow = true