diff --git a/README.md b/README.md index aa5a9fb..fbd3eac 100644 --- a/README.md +++ b/README.md @@ -11,8 +11,6 @@ Keep in mind that this is still just a prototype and that I'm not a frontend dev ## TO-DOs - Create a calibration page to allow users to calibrate the position and orientation of their camera, and to configure their chroma key (green screen). - - - Allow the Mixed Reality Capture session to be initialized with a JSON file with a saved calibration. ## How to test the example @@ -87,3 +85,40 @@ renderer.render( scene, camera ); mixedRealityCapture.render( renderer.xr, scene ); ``` + +Alternatively, you can instantiate the calibration with a JSON provided by the user: + +```javascript + +// ... + +const json = ` +{ + "schemaVersion": 1, + "camera": { + "width": 1280, + "height": 720, + "fov": 38, + "position": [0, 1.5, 0], + "orientation": [0, 0, 0, 1] + }, + "chromaKey": { + "color": [0, 1, 0], + "similarity": 0.25, + "smoothness": 0 + }, + "delay": 4 +} +`; + +const calibrationData = JSON.parse( json ); + +const calibration = MRC.Calibration.fromData( calibrationData ); + +// ... + +mixedRealityCapture = new MRC.MixedRealityCapture( calibration ); + +// ... + +``` diff --git a/examples/calibration/calibration-input.js b/examples/calibration/calibration-input.js new file mode 100644 index 0000000..c867631 --- /dev/null +++ b/examples/calibration/calibration-input.js @@ -0,0 +1,134 @@ +import { Calibration } from 'reality-mixer'; + +const exampleCalibrationJSON = ` +{ + "schemaVersion": 1, + "camera": { + "width": 1920, + "height": 1080, + "fov": 38, + "position": [0, 1.5, 0], + "orientation": [0, 0, 0, 1] + }, + "chromaKey": { + "color": [0, 1, 0], + "similarity": 0.25, + "smoothness": 0 + }, + "delay": 4 +} +` + +function CalibrationInput( + onCompleted, + initialCalibrationJSON = null +) { + let initialJSON; + + if (initialCalibrationJSON == null) { + let persistedJSON = localStorage.getItem("calibration-v1"); + + if (persistedJSON == null) { + initialJSON = exampleCalibrationJSON; + } else { + initialJSON = persistedJSON; + } + } else { + initialJSON = initialCalibrationJSON; + } + + let popupDiv = document.createElement("div"); + + popupDiv.style = ` + position: fixed; + top: 50%; + left: 50%; + transform: translate(-50%, -50%); + background-color: #303841; + border-radius: 4px; + font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace; + color: #EFEFEF; + overflow: hidden; + ` + + let titleDiv = document.createElement("div"); + + titleDiv.style = "background-color: #50565E; padding: 8px"; + titleDiv.innerText = "Paste or drag and drop your Mixed Reality calibration below:" + + let resultDiv = document.createElement("div"); + + resultDiv.style = "padding: 8px; white-space: pre-wrap; background-color: green;"; + + let editor = document.createElement("textarea"); + + editor.style = ` + font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace; + border: none; + box-shadow: none; + outline: none; + background-color: #303841; + color: #EFEFEF; + resize: none; + margin: 0px; + ` + + editor.rows = 20; + editor.cols = 80; + editor.spellcheck = false; + editor.value = initialJSON; + + function validateCalibration() { + const maybeJson = editor.value; + + try { + const json = JSON.parse(maybeJson); + const calibration = Calibration.fromData(json); + + resultDiv.style.backgroundColor = "green"; + resultDiv.innerHTML = ""; + + let link = document.createElement("a"); + link.innerText = "Click here to continue..."; + link.href = "#"; + link.style.color = "#EFEFEF"; + + link.onclick = function() { + localStorage.setItem("calibration-v1", maybeJson); + onCompleted(popupDiv, calibration); + return false; + } + + resultDiv.appendChild(link); + } catch (error) { + resultDiv.innerText = error; + resultDiv.style.backgroundColor = "red"; + } + } + + editor.oninput = validateCalibration; + validateCalibration(); + + popupDiv.appendChild(titleDiv); + popupDiv.appendChild(editor); + popupDiv.appendChild(resultDiv); + + popupDiv.ondrop = function(e) { + e.preventDefault(); + + let file = e.dataTransfer.files[0], + reader = new FileReader(); + + reader.onload = function(event) { + editor.value = event.target.result; + validateCalibration(); + }; + + reader.readAsText(file); + return false; + } + + return popupDiv; +} + +export { CalibrationInput }; diff --git a/examples/calibration_input.html b/examples/calibration_input.html new file mode 100644 index 0000000..d177202 --- /dev/null +++ b/examples/calibration_input.html @@ -0,0 +1,38 @@ + + + + + Calibration input + + + + + + + + + + + + diff --git a/examples/webxr_vr_ballshooter.html b/examples/webxr_vr_ballshooter.html index 2058b13..c6480c8 100644 --- a/examples/webxr_vr_ballshooter.html +++ b/examples/webxr_vr_ballshooter.html @@ -24,6 +24,7 @@ import * as THREE from 'three'; import * as MRC from 'reality-mixer'; + import { CalibrationInput } from './calibration/calibration-input.js'; import { BoxLineGeometry } from '../node_modules/three/examples/jsm/geometries/BoxLineGeometry.js'; import { VRButton } from '../node_modules/three/examples/jsm/webxr/VRButton.js'; @@ -44,10 +45,23 @@ const clock = new THREE.Clock(); - init(); - animate(); + // Mixed Reality Calibration Input - function init() { + function onCalibrationInput(editor, calibration) { + editor.parentNode.removeChild(editor); + console.log(calibration); + + init(calibration); + animate(); + } + + const calibrationInput = CalibrationInput(onCalibrationInput); + + document.body.appendChild(calibrationInput); + + // + + function init(calibration) { scene = new THREE.Scene(); scene.background = new THREE.Color( 0x505050 ); @@ -89,11 +103,6 @@ // Mixed Reality Capture - const cameraCalibration = new MRC.CameraCalibration(); - const chromaKey = new MRC.ChromaKey(); - const delayInFrames = 5; - const calibration = new MRC.Calibration( cameraCalibration, chromaKey, delayInFrames ); - mixedRealityCapture = new MRC.MixedRealityCapture( calibration ); // diff --git a/package-lock.json b/package-lock.json index e437975..ffdfe7a 100644 --- a/package-lock.json +++ b/package-lock.json @@ -1,28 +1,435 @@ { "name": "reality-mixer", - "version": "1.0.0", + "version": "1.1.0", "lockfileVersion": 2, "requires": true, "packages": { "": { "name": "reality-mixer", - "version": "1.0.0", + "version": "1.1.0", "license": "MIT", "dependencies": { "three": "^0.140.0" + }, + "devDependencies": { + "ajv-cli": "git@github.com:willfarrell/ajv-cli.git#15c4f0153e25da2737d673f0c027e3ab0f5b1ec8" + } + }, + "node_modules/ajv": { + "version": "8.11.0", + "dev": true, + "license": "MIT", + "dependencies": { + "fast-deep-equal": "^3.1.1", + "json-schema-traverse": "^1.0.0", + "require-from-string": "^2.0.2", + "uri-js": "^4.2.2" + }, + "funding": { + "type": "github", + "url": "https://github.com/sponsors/epoberezkin" + } + }, + "node_modules/ajv-cli": { + "version": "5.0.0", + "resolved": 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{ - "test": "echo \"Error: no test specified\" && exit 1" + "compile-schema": "ajv compile -s schemas/calibration-schema.json -o src/validate-schema.js --code-esm" }, "repository": { "type": "git", @@ -29,5 +29,8 @@ "homepage": "https://github.com/fabio914/reality-mixer-js#readme", "dependencies": { "three": "^0.140.0" + }, + "devDependencies": { + "ajv-cli": "git@github.com:willfarrell/ajv-cli.git#15c4f0153e25da2737d673f0c027e3ab0f5b1ec8" } } diff --git a/schemas/calibration-schema.json b/schemas/calibration-schema.json new file mode 100644 index 0000000..cc52661 --- /dev/null +++ b/schemas/calibration-schema.json @@ -0,0 +1,91 @@ +{ + "type": "object", + "properties": { + "schemaVersion": { + "type": "integer", + "minimum": 1, + "maximum": 1 + }, + "camera": { + "type": "object", + "properties": { + "width": { + "type": "integer", + "minimum": 1 + }, + "height": { + "type": "integer", + "minimum": 1 + }, + "fov": { + "type": "number", + "minimum": 1 + }, + "position": { + "type": "array", + "minItems": 3, + "maxItems": 3, + "items": { + "type": "number" + } + }, + "orientation": { + "type": "array", + "minItems": 4, + "maxItems": 4, + "items": { + "type": "number" + } + } + }, + "required": [ + "width", + "height", + "fov", + "position", + "orientation" + ] + }, + "chromaKey": { + "type": "object", + "properties": { + "color": { + "type": "array", + "minItems": 3, + "maxItems": 3, + "items": { + "type": "number", + "minimum": 0, + "maximum": 1 + } + }, + "similarity": { + "type": "number", + "minimum": 0, + "maximum": 1 + }, + "smoothness": { + "type": "number", + "minimum": 0, + "maximum": 1 + } + }, + "required": [ + "color", + "similarity", + "smoothness" + ] + }, + "delay": { + "type": "integer", + "minimum": 0 + } + }, + "required": [ + "schemaVersion", + "camera", + "chromaKey", + "delay" + ], + "additionalProperties": false +} diff --git a/src/mrc.js b/src/mrc.js index 9001a7f..aa0976c 100644 --- a/src/mrc.js +++ b/src/mrc.js @@ -1,4 +1,5 @@ import * as THREE from 'three'; +import validate from './validate-schema.js'; class CameraCalibration { width; @@ -52,6 +53,36 @@ class Calibration { this.chromaKey = chromaKey; this.delayInFrames = Math.max(0, delayInFrames); } + + static fromData(data) { + // We're not checking if the orientation is a valid unit quaternion + + if (!validate(data)) { + throw JSON.stringify(validate.errors, null, 2); + } + + const cameraCalibration = new CameraCalibration( + data.camera.width, + data.camera.height, + data.camera.fov, + data.camera.position, + data.camera.orientation + ) + + const chromaKey = new ChromaKey( + data.chromaKey.color, + data.chromaKey.similarity, + data.chromaKey.smoothness + ) + + const calibration = new Calibration( + cameraCalibration, + chromaKey, + data.delay + ) + + return calibration; + } } class MixedRealityCapture { diff --git a/src/validate-schema.js b/src/validate-schema.js new file mode 100644 index 0000000..323630c --- /dev/null +++ b/src/validate-schema.js @@ -0,0 +1 @@ +"use strict";export const validate = validate20;export default validate20;const schema22 = {"type":"object","properties":{"schemaVersion":{"type":"integer","minimum":1,"maximum":1},"camera":{"type":"object","properties":{"width":{"type":"integer","minimum":1},"height":{"type":"integer","minimum":1},"fov":{"type":"number","minimum":1},"position":{"type":"array","minItems":3,"maxItems":3,"items":{"type":"number"}},"orientation":{"type":"array","minItems":4,"maxItems":4,"items":{"type":"number"}}},"required":["width","height","fov","position","orientation"]},"chromaKey":{"type":"object","properties":{"color":{"type":"array","minItems":3,"maxItems":3,"items":{"type":"number","minimum":0,"maximum":1}},"similarity":{"type":"number","minimum":0,"maximum":1},"smoothness":{"type":"number","minimum":0,"maximum":1}},"required":["color","similarity","smoothness"]},"delay":{"type":"integer","minimum":0}},"required":["schemaVersion","camera","chromaKey","delay"],"additionalProperties":false};function validate20(data, {instancePath="", parentData, parentDataProperty, rootData=data}={}){let vErrors = null;let errors = 0;if(errors === 0){if(data && typeof data == "object" && !Array.isArray(data)){let missing0;if(((((data.schemaVersion === undefined) && (missing0 = "schemaVersion")) || ((data.camera === undefined) && (missing0 = "camera"))) || ((data.chromaKey === undefined) && (missing0 = "chromaKey"))) || ((data.delay === undefined) && (missing0 = "delay"))){validate20.errors = [{instancePath,schemaPath:"#/required",keyword:"required",params:{missingProperty: missing0},message:"must have required property '"+missing0+"'"}];return false;}else {const _errs1 = errors;for(const key0 in data){if(!((((key0 === "schemaVersion") || (key0 === "camera")) || (key0 === "chromaKey")) || (key0 === "delay"))){validate20.errors = [{instancePath,schemaPath:"#/additionalProperties",keyword:"additionalProperties",params:{additionalProperty: key0},message:"must NOT have additional properties"}];return false;break;}}if(_errs1 === errors){if(data.schemaVersion !== undefined){let data0 = data.schemaVersion;const _errs2 = errors;if(!(((typeof data0 == "number") && (!(data0 % 1) && !isNaN(data0))) && (isFinite(data0)))){validate20.errors = [{instancePath:instancePath+"/schemaVersion",schemaPath:"#/properties/schemaVersion/type",keyword:"type",params:{type: "integer"},message:"must be integer"}];return false;}if(errors === _errs2){if((typeof data0 == "number") && (isFinite(data0))){if(data0 > 1 || isNaN(data0)){validate20.errors = [{instancePath:instancePath+"/schemaVersion",schemaPath:"#/properties/schemaVersion/maximum",keyword:"maximum",params:{comparison: "<=", limit: 1},message:"must be <= 1"}];return false;}else {if(data0 < 1 || isNaN(data0)){validate20.errors = [{instancePath:instancePath+"/schemaVersion",schemaPath:"#/properties/schemaVersion/minimum",keyword:"minimum",params:{comparison: ">=", limit: 1},message:"must be >= 1"}];return false;}}}}var valid0 = _errs2 === errors;}else {var valid0 = true;}if(valid0){if(data.camera !== undefined){let data1 = data.camera;const _errs4 = errors;if(errors === _errs4){if(data1 && typeof data1 == "object" && !Array.isArray(data1)){let missing1;if((((((data1.width === undefined) && (missing1 = "width")) || ((data1.height === undefined) && (missing1 = "height"))) || ((data1.fov === undefined) && (missing1 = "fov"))) || ((data1.position === undefined) && (missing1 = "position"))) || ((data1.orientation === undefined) && (missing1 = "orientation"))){validate20.errors = [{instancePath:instancePath+"/camera",schemaPath:"#/properties/camera/required",keyword:"required",params:{missingProperty: missing1},message:"must have required property '"+missing1+"'"}];return false;}else {if(data1.width !== undefined){let data2 = data1.width;const _errs6 = errors;if(!(((typeof data2 == "number") && (!(data2 % 1) && !isNaN(data2))) && (isFinite(data2)))){validate20.errors = [{instancePath:instancePath+"/camera/width",schemaPath:"#/properties/camera/properties/width/type",keyword:"type",params:{type: "integer"},message:"must be integer"}];return false;}if(errors === _errs6){if((typeof data2 == "number") && (isFinite(data2))){if(data2 < 1 || isNaN(data2)){validate20.errors = [{instancePath:instancePath+"/camera/width",schemaPath:"#/properties/camera/properties/width/minimum",keyword:"minimum",params:{comparison: ">=", limit: 1},message:"must be >= 1"}];return false;}}}var valid1 = _errs6 === errors;}else {var valid1 = true;}if(valid1){if(data1.height !== undefined){let data3 = data1.height;const _errs8 = errors;if(!(((typeof data3 == "number") && (!(data3 % 1) && !isNaN(data3))) && (isFinite(data3)))){validate20.errors = [{instancePath:instancePath+"/camera/height",schemaPath:"#/properties/camera/properties/height/type",keyword:"type",params:{type: "integer"},message:"must be integer"}];return false;}if(errors === _errs8){if((typeof data3 == "number") && (isFinite(data3))){if(data3 < 1 || isNaN(data3)){validate20.errors = [{instancePath:instancePath+"/camera/height",schemaPath:"#/properties/camera/properties/height/minimum",keyword:"minimum",params:{comparison: ">=", limit: 1},message:"must be >= 1"}];return false;}}}var valid1 = _errs8 === errors;}else {var valid1 = true;}if(valid1){if(data1.fov !== undefined){let data4 = data1.fov;const _errs10 = errors;if(errors === _errs10){if((typeof data4 == "number") && (isFinite(data4))){if(data4 < 1 || isNaN(data4)){validate20.errors = [{instancePath:instancePath+"/camera/fov",schemaPath:"#/properties/camera/properties/fov/minimum",keyword:"minimum",params:{comparison: ">=", limit: 1},message:"must be >= 1"}];return false;}}else {validate20.errors = [{instancePath:instancePath+"/camera/fov",schemaPath:"#/properties/camera/properties/fov/type",keyword:"type",params:{type: "number"},message:"must be number"}];return false;}}var valid1 = _errs10 === errors;}else {var valid1 = true;}if(valid1){if(data1.position !== undefined){let data5 = data1.position;const _errs12 = errors;if(errors === _errs12){if(Array.isArray(data5)){if(data5.length > 3){validate20.errors = [{instancePath:instancePath+"/camera/position",schemaPath:"#/properties/camera/properties/position/maxItems",keyword:"maxItems",params:{limit: 3},message:"must NOT have more than 3 items"}];return false;}else {if(data5.length < 3){validate20.errors = [{instancePath:instancePath+"/camera/position",schemaPath:"#/properties/camera/properties/position/minItems",keyword:"minItems",params:{limit: 3},message:"must NOT have fewer than 3 items"}];return false;}else {var valid2 = true;const len0 = data5.length;for(let i0=0; i0 4){validate20.errors = [{instancePath:instancePath+"/camera/orientation",schemaPath:"#/properties/camera/properties/orientation/maxItems",keyword:"maxItems",params:{limit: 4},message:"must NOT have more than 4 items"}];return false;}else {if(data7.length < 4){validate20.errors = [{instancePath:instancePath+"/camera/orientation",schemaPath:"#/properties/camera/properties/orientation/minItems",keyword:"minItems",params:{limit: 4},message:"must NOT have fewer than 4 items"}];return false;}else {var valid3 = true;const len1 = data7.length;for(let i1=0; i1 3){validate20.errors = [{instancePath:instancePath+"/chromaKey/color",schemaPath:"#/properties/chromaKey/properties/color/maxItems",keyword:"maxItems",params:{limit: 3},message:"must NOT have more than 3 items"}];return false;}else {if(data10.length < 3){validate20.errors = [{instancePath:instancePath+"/chromaKey/color",schemaPath:"#/properties/chromaKey/properties/color/minItems",keyword:"minItems",params:{limit: 3},message:"must NOT have fewer than 3 items"}];return false;}else {var valid5 = true;const len2 = data10.length;for(let i2=0; i2 1 || isNaN(data11)){validate20.errors = [{instancePath:instancePath+"/chromaKey/color/" + 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true;}}}}}else {validate20.errors = [{instancePath:instancePath+"/chromaKey",schemaPath:"#/properties/chromaKey/type",keyword:"type",params:{type: "object"},message:"must be object"}];return false;}}var valid0 = _errs20 === errors;}else {var valid0 = true;}if(valid0){if(data.delay !== undefined){let data14 = data.delay;const _errs30 = errors;if(!(((typeof data14 == "number") && (!(data14 % 1) && !isNaN(data14))) && (isFinite(data14)))){validate20.errors = [{instancePath:instancePath+"/delay",schemaPath:"#/properties/delay/type",keyword:"type",params:{type: "integer"},message:"must be integer"}];return false;}if(errors === _errs30){if((typeof data14 == "number") && (isFinite(data14))){if(data14 < 0 || isNaN(data14)){validate20.errors = [{instancePath:instancePath+"/delay",schemaPath:"#/properties/delay/minimum",keyword:"minimum",params:{comparison: ">=", limit: 0},message:"must be >= 0"}];return false;}}}var valid0 = _errs30 === errors;}else {var valid0 = true;}}}}}}}else {validate20.errors = [{instancePath,schemaPath:"#/type",keyword:"type",params:{type: "object"},message:"must be object"}];return false;}}validate20.errors = vErrors;return errors === 0;} \ No newline at end of file