tforgione/3d-interface
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

I'm too good, progressive streaming with only frustum sent, and if

Browse Source 
nothing, just stream
This commit is contained in:
Thomas FORGIONE 2015-06-26 09:22:32 +02:00
parent 741f23e03d
commit 5ec0a152f5
4 changed files with 142 additions and 41 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

128
geo/MeshStreamer.js
View File

@ -328,6 +328,14 @@ geo.MeshStreamer.prototype.start = function(socket) {
// Send next elements
var next = self.nextElements(camera);
if (next.data.length === 0) {
// If nothing, just serve stuff
var tmp = self.nextElements(camera, true);
next.data = tmp.data;
}
socket.emit('elements', next.data);
if (next.finished) {
@ -373,28 +381,49 @@ geo.MeshStreamer.prototype.nextMaterials = function() {
* only interesting parts according to the camera
* @returns {array} an array of elements ready to send
*/
geo.MeshStreamer.prototype.nextElements = function(_camera) {
geo.MeshStreamer.prototype.nextElements = function(_camera, force) {
if (force === undefined) {
force = false;
}
// Prepare camera (and scale to model)
var camera = null;
var planes = [];
var direction;
if (_camera !== null) {
var camera = {
camera = {
position: {
x: _camera[0],
y: _camera[1],
z: _camera[2]
x: _camera[0][0],
y: _camera[0][1],
z: _camera[0][2]
},
target: {
x: _camera[3],
y: _camera[4],
z: _camera[5]
x: _camera[1][0],
y: _camera[1][1],
z: _camera[1][2]
}
}
for (var i = 2; i < _camera.length; i++) {
planes.push({
normal: {
x: _camera[i][0],
y: _camera[i][1],
z: _camera[i][2]
},
constant: _camera[i][3]
});
}
// Compute camera direction
var direction = {
direction = {
x: camera.target.x - camera.position.x,
y: camera.target.y - camera.position.y,
z: camera.target.z - camera.position.z
@ -436,36 +465,73 @@ geo.MeshStreamer.prototype.nextElements = function(_camera) {
var vertex2 = this.vertices[currentFace.b];
var vertex3 = this.vertices[currentFace.c];
if (camera !== null) {
// if (camera !== null) {
var v1 = {
x: vertex1.x - camera.position.x,
y: vertex1.y - camera.position.y,
z: vertex1.z - camera.position.z
};
// var v1 = {
// x: vertex1.x - camera.position.x,
// y: vertex1.y - camera.position.y,
// z: vertex1.z - camera.position.z
// };
var v2 = {
x: vertex2.x - camera.position.x,
y: vertex2.y - camera.position.y,
z: vertex2.z - camera.position.z
};
// var v2 = {
// x: vertex2.x - camera.position.x,
// y: vertex2.y - camera.position.y,
// z: vertex2.z - camera.position.z
// };
var v3 = {
x: vertex3.x - camera.position.x,
y: vertex3.y - camera.position.y,
z: vertex3.z - camera.position.z
};
// var v3 = {
// x: vertex3.x - camera.position.x,
// y: vertex3.y - camera.position.y,
// z: vertex3.z - camera.position.z
// };
if (
direction.x * v1.x + direction.y * v1.y + direction.z * v1.z < 0 &&
direction.x * v2.x + direction.y * v2.y + direction.z * v2.z < 0 &&
direction.x * v3.x + direction.y * v3.y + direction.z * v3.z < 0
) {
// if (
// direction.x * v1.x + direction.y * v1.y + direction.z * v1.z < 0 &&
// direction.x * v2.x + direction.y * v2.y + direction.z * v2.z < 0 &&
// direction.x * v3.x + direction.y * v3.y + direction.z * v3.z < 0
// ) {
continue;
// continue;
// }
// }
if (!force) {
var exitToContinue = false;
threeVertices = [vertex1, vertex2, vertex3];
for (var i = 0; i < threeVertices.length; i++) {
var vertex = threeVertices[i];
for (var j = 0; j < planes.length; j++) {
var plane = planes[j];
distance =
plane.normal.x * vertex.x +
plane.normal.y * vertex.y +
plane.normal.z * vertex.z +
plane.constant;
if (distance < 0)
{
exitToContinue = true;
break;
}
}
if (exitToContinue)
break;
}
if (exitToContinue)
continue;
}
if (!vertex1.sent) {

27
js/PointerCamera.js
View File

@ -714,3 +714,30 @@ PointerCamera.prototype.redoable = function() {
return this.history.redoable();
}
PointerCamera.prototype.toList = function() {
this.updateMatrix();
this.updateMatrixWorld();
var frustum = new THREE.Frustum();
var projScreenMatrix = new THREE.Matrix4();
projScreenMatrix.multiplyMatrices(this.projectionMatrix, this.matrixWorldInverse);
frustum.setFromMatrix(new THREE.Matrix4().multiplyMatrices(this.projectionMatrix, this.matrixWorldInverse));
var ret =
[[this.position.x, this.position.y, this.position.z],
[this.target.x, this.target.y, this.target.z]];
for (var i = 0; i < frustum.planes.length; i++) {
var p = frustum.planes[i];
ret.push([
p.normal.x, p.normal.y, p.normal.z, p.constant
]);
}
return ret;
}

3
js/ProgressiveLoaderGeometry.js
View File

@ -202,8 +202,7 @@ ProgressiveLoaderGeometry.prototype.getCamera = function() {
if (this.camera === null)
return null;
return [this.camera.position.x, this.camera.position.y, this.camera.position.z,
this.camera.target.x, this.camera.target.y, this.camera.target.z];
return this.toList();
}
/**

25
js/prototype/initScene.js vendored
View File

@ -637,14 +637,23 @@ function initSponzaScene(scene, collidableObjects, loader, camera) {
loader.getCamera = function() {
return [
loader.camera.position.x * 10,
loader.camera.position.y * 10,
loader.camera.position.z * 10,
loader.camera.target.x * 10,
loader.camera.target.y * 10,
loader.camera.target.z * 10
];
var ret = loader.camera.toList();
ret[0][0] *= 10;
ret[0][1] *= 10;
ret[0][2] *= 10;
ret[1][0] *= 10;
ret[1][1] *= 10;
ret[1][2] *= 10;
// Planes
for (var i = 2; i < ret.length; i++) {
ret[i][3] *= 10;
}
return ret;
}
loader.obj.scale.set(0.1,0.1,0.1);