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webxr.js
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webxr.js
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let canvas = document.getElementById("renderCanvas");
let engine = null;
let dome = null;
let ui = null;
let uiOpenButton = null;
let panelButtons = [];
let scene = null;
let camera = null;
let xrHelper = null;
let photoIndex = 0;
let visibleUI = true; // Stopping user input on invisible buttons
let changingImage = false; // Stopping user input during image transition
let currRenderMode = "reveal-image" // "show", "change-image", "reveal-image", "reveal-ui", "hide-ui"
const MAX_PHOTO_INDEX = 3;
const FRAME_FADE_PERCENT = 0.01;
const ESPM_DARK = new BABYLON.Color3(0.658, 0.197, 0.196)
const ESPM_LIGHT = new BABYLON.Color3(0.448, 0.117, 0.134)
let imagesJSON = [
{
file: "./textures/photo0.jpg",
name: "Green\nhills"
},
{
file: "./textures/photo1.jpg",
name: "Another\nuniverse"
},
{
file: "./textures/photo2.jpg",
name: "Manson"
},
{
file: "./textures/photo3.jpg",
name: "Snow hills"
}
]
function imageFromMenu(index) {
return imagesJSON[index]
}
function setPanelButtonsVisibility(visibility) {
for (let i = 0; i < panelButtons.length; i++) {
panelButtons[i].isVisible = visibility;
}
visibleUI = visibility
}
let renderTypes = {
"show": () => {
},
"change-image": () => {
changingImage = true
// setPanelButtonsVisibility(false)
dome.material.alpha = Math.max(0, dome.material.alpha - FRAME_FADE_PERCENT)
if (dome.material.alpha > 0) {
return
}
replaceDome(scene)
replaceUI()
changingImage = false
currRenderMode = "reveal-image"
},
"reveal-image": () => {
dome.material.alpha = Math.min(1, dome.material.alpha + FRAME_FADE_PERCENT)
if (dome.material.alpha < 1) {
return
}
currRenderMode = "show"
},
"reveal-ui": () => {
setPanelButtonsVisibility(true)
currRenderMode = "show"
},
"hide-ui": () => {
setPanelButtonsVisibility(false)
currRenderMode = "show"
}
}
function replaceDome(scene) {
if (dome) {
dome.dispose();
dome = null;
}
dome = new BABYLON.PhotoDome(
"dome",
imageFromMenu(photoIndex).file,
{
resolution: 32,
size: 1000
},
scene
);
dome.material.alpha = 0
}
function replaceUI() {
if (ui) {
ui.dispose()
ui = null
}
ui = new BABYLON.GUI.GUI3DManager(scene);
attachPanel()
}
function attachPanel() {
let anchor = new BABYLON.TransformNode("panel-anchor");
panel = new BABYLON.GUI.PlanePanel();
panel.linkToTransformNode(anchor);
panel.position.z = -1.5;
panel.columns = 3
panel.rows = 2
ui.addControl(panel)
// Cores ESPM
// #a80532
// #720322
for (let i = 0; i < imagesJSON.length; i++) {
if (photoIndex != i) {
const image = imagesJSON[i];
for (let j = 0; j < 3; j++) {
let button = createChangeImageButton(image, i)
panelButtons.push(button)
panel.addControl(button)
// https://doc.babylonjs.com/features/featuresDeepDive/gui/gui3D#holographicbutton
overwriteButtonContent(button, image.name)
}
}
}
let menuButton = createMenuButton()
panel.addControl(menuButton);
overwriteButtonContent(menuButton, "Alternar menu")
uiOpenButton = menuButton
// let browserModeButton = createBrowserModeButton()
// panel.addControl(browserModeButton)
// panelButtons.push(browserModeButton)
}
function uiSwitch() {
if (visibleUI) {
currRenderMode = "hide-ui"
} else {
currRenderMode = "reveal-ui"
}
}
function overwriteButtonContent(button, text) {
let content = new BABYLON.GUI.TextBlock();
content.text = text;
content.color = "White";
content.fontSize = 36;
button.content = content
button.scaling = button.scaling.scale(1.8)
button.frontMaterial = new BABYLON.GUI.FluentButtonMaterial("espm", scene);
button.frontMaterial.alphaMode = BABYLON.Engine.ALPHA_ONEONE;
button.frontMaterial.albedoColor = ESPM_LIGHT;
button.backMaterial.albedoColor = ESPM_DARK;
}
function createMenuButton() {
return createHolographicButton("open-overlay", uiSwitch)
}
function createChangeImageButton(image, index) {
return createHolographicButton("button-" + index, function () {
photoIndex = index
if (visibleUI) {
console.log(`${image.name} PRESSED!`)
currRenderMode = "change-image"
}
})
}
// function createBrowserModeButton() {
// return createHolographicButton("browser-mode", function () {
// window.location.href = "./index.html"
// })
// }
function createHolographicButton(name, event) {
let button = new BABYLON.GUI.HolographicButton(name);
// button.isVisible = visibility
button.onPointerUpObservable.add(event);
// button.onPointerClickObservable.add(event);
return button
}
let controlMap = {
"a": () => {
photoIndex--
currRenderMode = "change-image"
if (photoIndex < 0) {
photoIndex = MAX_PHOTO_INDEX
}
},
"d": () => {
photoIndex++
currRenderMode = "change-image"
if (photoIndex > MAX_PHOTO_INDEX) {
photoIndex = 0
}
},
"m": uiSwitch
}
async function createScene() {
// This creates a basic Babylon Scene object (non-mesh)
scene = new BABYLON.Scene(engine);
// Debug / Inspector
if (window.debug)
scene.debugLayer.show({ embedMode: true });
camera = new BABYLON.ArcRotateCamera("Camera", -Math.PI / 2, Math.PI / 2, 5, BABYLON.Vector3.Zero(), scene);
camera.attachControl(canvas, true);
camera.inputs.attached.mousewheel.detachControl(canvas);
replaceDome(scene)
// FOV
dome.fovMultiplier = 2 // Vai de 0.0 a 2.0
scene.onKeyboardObservable.add((kbInfo) => {
if (changingImage) {
return
}
if (kbInfo.type !== BABYLON.KeyboardEventTypes.KEYDOWN) {
return
}
let key = kbInfo.event.key
if (Object.keys(controlMap).includes(key)) {
let controlFunciton = controlMap[key]
controlFunciton()
}
});
xrHelper = await scene.createDefaultXRExperienceAsync()
replaceUI()
}
// Resize
window.addEventListener("resize", function () {
if (engine)
engine.resize();
});
async function initFunction() {
engine = new BABYLON.Engine(canvas, true, {
preserveDrawingBuffer: false,
stencil: false,
disableWebGL2Support: false
});
await createScene();
engine.runRenderLoop(function () {
if (scene && scene.activeCamera) {
renderTypes[currRenderMode]()
scene.render();
}
});
}
initFunction();