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apply scale to portal planes

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This commit is contained in:
Leon van Kammen 2023-11-14 23:07:48 +01:00
parent 003d98cf39
commit 5b67b9b934
2 changed files with 310 additions and 256 deletions
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543
example/assets/index.gltf
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File diff suppressed because one or more lines are too long

23
src/3rd/js/three/xrf/src/non-euclidian.js
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@ -10,6 +10,8 @@ xrf.portalNonEuclidian = function(opts){
mesh.material.stencilRef = xrf.portalNonEuclidian.stencilRef;
mesh.material.stencilFunc = THREE.AlwaysStencilFunc;
mesh.material.stencilZPass = THREE.ReplaceStencilOp;
mesh.material.stencilFail = THREE.ReplaceStencilOp;
mesh.material.stencilZFail = THREE.ReplaceStencilOp;
//mesh.material.side = THREE.DoubleSide // *TODO* this requires flipping normals based on camera orientation
mesh.portal = {
pos: mesh.position.clone(),
@ -23,19 +25,21 @@ xrf.portalNonEuclidian = function(opts){
// allow objects to flip between original and stencil position (which puts them behind stencilplane)
const addStencilFeature = (n) => {
if( n.stencil ) return n // run once
n.stencil = ( (pos ) => (sRef,newPos) => {
n.position.copy( sRef == 0 ? pos : newPos )
n.stencil = ( (pos,scale) => (sRef,newPos, newScale) => {
n.position.copy( sRef == 0 ? pos : newPos )
if( sRef > 0 ) n.scale.multiply( newScale )
else n.scale.copy( scale )
xrf.portalNonEuclidian.selectStencil(n, sRef )
n.updateMatrixWorld(true)
}
)( n.position.clone() )
)( n.position.clone(), n.scale.clone() )
return n
}
// collect related objects from XRWG to render inside stencilplane
let world = scene.getObjectByName( mesh.userData.src.substr(1) ) // strip #
if( !world ) return console.warn(`no objects were found (src:${mesh.userData.src}) for (portal)object name '${mesh.name}'`)
let stencilObjects = [mesh,world]
// collect related objects to render inside stencilplane
let stencilObject = scene.getObjectByName( mesh.userData.src.substr(1) ) // strip #
if( !stencilObject ) return console.warn(`no objects were found (src:${mesh.userData.src}) for (portal)object name '${mesh.name}'`)
let stencilObjects = [mesh,stencilObject]
stencilObjects = stencilObjects
.filter( (n) => !n.portal ) // filter out (self)references to portals (prevent recursion)
.map(addStencilFeature)
@ -68,11 +72,12 @@ xrf.portalNonEuclidian = function(opts){
if( mesh.portal && mesh.portal.needUpdate ){
let {scene,camera,time,render} = opts
let stencilRef = mesh.portal.stencilRef
let stencilPos = mesh.portal.posWorld
let newPos = mesh.portal.posWorld
let newScale = mesh.scale
mesh.visible = true
mesh.portal.stencilObjects.traverse( (n) => showPortal(n,false) && n.stencil && n.stencil(stencilRef,stencilPos) )
mesh.portal.stencilObjects.traverse( (n) => showPortal(n,false) && n.stencil && n.stencil(stencilRef,newPos,newScale) )
renderer.autoClear = false
renderer.clearDepth()
render( mesh.portal.stencilObjects, camera )