This commit is contained in:
Leon van Kammen 2023-10-25 12:47:23 +02:00
parent 6fba59e645
commit 3e602fd6a2
5 changed files with 89 additions and 104 deletions

View file

@ -193,11 +193,12 @@ sub-delims = "," / "="
# List of URI Fragments
| fragment | type | example | info |
|-------------------|----------|-------------------|----------------------------------------------------------------------|
| `#pos` | vector3 | `#pos=0.5,0,0` | positions camera (or XR floor) to xyz-coord 0.5,0,0, |
| `#rot` | vector3 | `#rot=0,90,0` | rotates camera to xyz-coord 0.5,0,0 |
| `#t` | vector3 | `#t=1,500,1000` | play animation-loop range between frame 500 and 1000, at normal speed|
| fragment | type | example | info |
|-------------------|----------|--------------------|----------------------------------------------------------------------|
| `#pos` | vector3 | `#pos=0.5,0,0` | positions camera (or XR floor) to xyz-coord 0.5,0,0, |
| `#rot` | vector3 | `#rot=0,90,0` | rotates camera to xyz-coord 0.5,0,0 |
| `#t` | vector3 | `#t=1,500,1000` | play animation-loop range between frame 500 and 1000, at normal speed|
| `#q` | vector3 | `#q=-sky -tag:hide`| queries scene-graph (and removes object with name `cube` or `tag: hide`) |
## List of metadata for 3D nodes

View file

@ -0,0 +1,69 @@
const drawLineToMesh = (frag,scene,mesh) => {
let id = frag.string
let oldSelection
if(!id) return id // important: ignore empty strings
// Selection of Interest if predefined_view matches object name
if( mesh.visible && mesh.material){
xrf.emit('focus',{...opts,frag})
.then( () => {
const color = new THREE.Color();
const colors = []
let from = new THREE.Vector3()
let getCenterPoint = (mesh) => {
var geometry = mesh.geometry;
geometry.computeBoundingBox();
var center = new THREE.Vector3();
geometry.boundingBox.getCenter( center );
mesh.localToWorld( center );
return center;
}
xrf.camera.updateMatrixWorld(true); // always keeps me diving into the docs :]
xrf.camera.getWorldPosition(from)
from.y -= 0.5 // originate from the heart chakra! :p
const points = [from, getCenterPoint(mesh) ]
const geometry = new THREE.BufferGeometry().setFromPoints( points );
let line = new THREE.Line( geometry, xrf.focusLine.material );
line.isXRF = true
line.computeLineDistances();
xrf.focusLine.lines.push(line)
xrf.focusLine.points.push(from)
xrf.focusLine.opacity = 1
scene.add(line)
})
}
}
xrf.addEventListener('dynamicKey', (opts) => {
console.dir(opts)
let {scene,id,match,v} = opts
if( !scene ) return
let remove = []
// erase previous lines
xrf.focusLine.lines.map( (line) => scene.remove(line) )
xrf.focusLine.points = []
xrf.focusLine.lines = []
scene.traverse( (n) => n.selection ? remove.push(n) : false )
remove.map( (n) => scene.remove(n.selection) )
// drawlines
match.map( (w) => {
w.nodes.map( (mesh) => drawLineToMesh( v, scene, mesh ) )
})
})
xrf.addEventListener('render', (opts) => {
let model = xrf.model
if( !model || !model.clock ) return
// update focusline
let {time} = opts
xrf.focusLine.material.color.r = (1.0 + Math.sin( model.clock.getElapsedTime()*10 ))/2
xrf.focusLine.material.dashSize = 0.2 + 0.02*Math.sin( model.clock.getElapsedTime() )
xrf.focusLine.material.gapSize = 0.1 + 0.02*Math.sin( model.clock.getElapsedTime() *3 )
xrf.focusLine.material.opacity = (0.25 + 0.15*Math.sin( model.clock.getElapsedTime() * 3 )) * xrf.focusLine.opacity;
if( xrf.focusLine.opacity > 0.0 ) xrf.focusLine.opacity -= time*0.2
if( xrf.focusLine.opacity < 0.0 ) xrf.focusLine.opacity = 0
})

View file

@ -8,98 +8,27 @@ xrf.frag.defaultPredefinedView = (opts) => {
xrf.frag.updatePredefinedView = (opts) => {
let {frag,scene,model,renderer} = opts
// spec: https://xrfragment.org/#Selection%20of%20interest
const selectionOfInterest = (frag,scene,mesh) => {
let id = frag.string
let oldSelection
if(!id) return id // important: ignore empty strings
// Selection of Interest if predefined_view matches object name
if( mesh.visible && mesh.material){
xrf.emit('focus',{...opts,frag})
.then( () => {
const color = new THREE.Color();
const colors = []
let from = new THREE.Vector3()
let getCenterPoint = (mesh) => {
var geometry = mesh.geometry;
geometry.computeBoundingBox();
var center = new THREE.Vector3();
geometry.boundingBox.getCenter( center );
mesh.localToWorld( center );
return center;
}
xrf.camera.updateMatrixWorld(true); // always keeps me diving into the docs :]
xrf.camera.getWorldPosition(from)
from.y -= 0.5 // originate from the heart chakra! :p
const points = [from, getCenterPoint(mesh) ]
const geometry = new THREE.BufferGeometry().setFromPoints( points );
let line = new THREE.Line( geometry, xrf.focusLine.material );
line.isXRF = true
line.computeLineDistances();
xrf.focusLine.lines.push(line)
xrf.focusLine.points.push(from)
xrf.focusLine.opacity = 1
scene.add(line)
})
}
}
//// spec: https://xrfragment.org/#predefined_view
//const predefinedView = (frag,scene,mesh) => {
// let id = frag.string || frag.fragment
// id = `#${id}`
// if( id == '##' ) id = '#'; // default predefined view
// if( !id ) return // prevent empty matches
// if( mesh.userData[id] ){ // get alias
// frag = xrf.URI.parse( mesh.userData[id], xrf.XRF.NAVIGATOR | xrf.XRF.PV_OVERRIDE | xrf.XRF.METADATA )
// xrf.emit('predefinedView',{...opts,frag})
// .then( () => {
// for ( let k in frag ){
// let opts = {frag, model, camera: xrf.camera, scene: xrf.scene, renderer: xrf.renderer, THREE: xrf.THREE }
// if( frag[k].is( xrf.XRF.PV_EXECUTE ) && scene.XRF_PV_ORIGIN != k ){ // cyclic detection
// highlightInScene(frag[k],scene) // recurse predefined views
// }
// }
// })
// }
//}
const highlightInScene = (v,scene) => {
if( !scene ) return
let remove = []
let id = v.string || v.fragment
if( id == '#' ) return
let match = xrf.XRWG.match(id)
// erase previous lines
xrf.focusLine.lines.map( (line) => scene.remove(line) )
xrf.focusLine.points = []
xrf.focusLine.lines = []
scene.traverse( (n) => n.selection ? remove.push(n) : false )
remove.map( (n) => scene.remove(n.selection) )
// create new selections
match.map( (w) => {
if( w.key == `#${id}` ){
if( w.value && w.value[0] == '#' ){
// if value is alias, execute fragment value
xrf.hashbus.pub( w.value, xrf.model, xrf.XRF.METADATA | xrf.XRF.PV_OVERRIDE | xrf.XRF.NAVIGATOR )
}
}
w.nodes.map( (mesh) => selectionOfInterest( v, scene, mesh ) )
})
}
// if this query was triggered by an src-value, lets filter it
const isSRC = opts.embedded && opts.embedded.fragment == 'src'
if( !isSRC ){ // spec : https://xrfragment.org/#src
for ( let i in frag ) {
let v = frag[i]
let id = v.string || v.fragment
if( id == '#' ) return
let match = xrf.XRWG.match(id)
if( v.is( xrf.XRF.PV_EXECUTE ) ){
scene.XRF_PV_ORIGIN = v.string
// wait for nested instances to arrive at the scene ?
highlightInScene(v,scene)
// evaluate aliases
match.map( (w) => {
if( w.key == `#${id}` ){
if( w.value && w.value[0] == '#' ){
// if value is alias, execute fragment value
xrf.hashbus.pub( w.value, xrf.model, xrf.XRF.METADATA | xrf.XRF.PV_OVERRIDE | xrf.XRF.NAVIGATOR )
}
}
})
xrf.emit('dynamicKey',{ ...opts,v,frag,id,match,scene })
}
}
}
@ -117,17 +46,3 @@ xrf.addEventListener('href', (opts) => {
let frag = xrf.URI.parse( opts.xrf.string, xrf.XRF.NAVIGATOR | xrf.XRF.PV_OVERRIDE | xrf.XRF.METADATA )
xrf.frag.updatePredefinedView({frag,scene:xrf.scene,href:opts.xrf})
})
xrf.addEventListener('render', (opts) => {
let model = xrf.model
if( !model || !model.clock ) return
// update focusline
let {time} = opts
xrf.focusLine.material.color.r = (1.0 + Math.sin( model.clock.getElapsedTime()*10 ))/2
xrf.focusLine.material.dashSize = 0.2 + 0.02*Math.sin( model.clock.getElapsedTime() )
xrf.focusLine.material.gapSize = 0.1 + 0.02*Math.sin( model.clock.getElapsedTime() *3 )
xrf.focusLine.material.opacity = (0.25 + 0.15*Math.sin( model.clock.getElapsedTime() * 3 )) * xrf.focusLine.opacity;
if( xrf.focusLine.opacity > 0.0 ) xrf.focusLine.opacity -= time*0.2
if( xrf.focusLine.opacity < 0.0 ) xrf.focusLine.opacity = 0
})