{
"id": "camera-control3-d",
"name": "Camera Control3 D",
"description": "A 3D camera control component using Three.js.",
"author": "multimodalart",
"tags": [
"3D",
"Image"
],
"category": "Input",
"html_template": "\n \n ",
"css_template": "",
"js_on_load": "\n (() => {\n const wrapper = element.querySelector('#camera-control-wrapper');\n const promptOverlay = element.querySelector('#prompt-overlay');\n \n // Wait for THREE to load\n const initScene = () => {\n if (typeof THREE === 'undefined') {\n setTimeout(initScene, 100);\n return;\n }\n \n // Scene setup\n const scene = new THREE.Scene();\n scene.background = new THREE.Color(0x1a1a1a);\n \n const camera = new THREE.PerspectiveCamera(50, wrapper.clientWidth / wrapper.clientHeight, 0.1, 1000);\n camera.position.set(4.5, 3, 4.5);\n camera.lookAt(0, 0.75, 0);\n \n const renderer = new THREE.WebGLRenderer({ antialias: true });\n renderer.setSize(wrapper.clientWidth, wrapper.clientHeight);\n renderer.setPixelRatio(Math.min(window.devicePixelRatio, 2));\n wrapper.insertBefore(renderer.domElement, promptOverlay);\n \n // Lighting\n scene.add(new THREE.AmbientLight(0xffffff, 0.6));\n const dirLight = new THREE.DirectionalLight(0xffffff, 0.6);\n dirLight.position.set(5, 10, 5);\n scene.add(dirLight);\n \n // Grid\n scene.add(new THREE.GridHelper(8, 16, 0x333333, 0x222222));\n \n // Constants - reduced distances for tighter framing\n const CENTER = new THREE.Vector3(0, 0.75, 0);\n const BASE_DISTANCE = 1.6;\n const AZIMUTH_RADIUS = 2.4;\n const ELEVATION_RADIUS = 1.8;\n \n // State\n let azimuthAngle = props.value?.azimuth || 0;\n let elevationAngle = props.value?.elevation || 0;\n let distanceFactor = props.value?.distance || 1.0;\n \n // Mappings - reduced wide shot multiplier\n const azimuthSteps = [0, 45, 90, 135, 180, 225, 270, 315];\n const elevationSteps = [-30, 0, 30, 60];\n const distanceSteps = [0.6, 1.0, 1.4];\n \n const azimuthNames = {\n 0: 'front view', 45: 'front-right quarter view', 90: 'right side view',\n 135: 'back-right quarter view', 180: 'back view', 225: 'back-left quarter view',\n 270: 'left side view', 315: 'front-left quarter view'\n };\n const elevationNames = { '-30': 'low-angle shot', '0': 'eye-level shot', '30': 'elevated shot', '60': 'high-angle shot' };\n const distanceNames = { '0.6': 'close-up', '1': 'medium shot', '1.4': 'wide shot' };\n \n function snapToNearest(value, steps) {\n return steps.reduce((prev, curr) => Math.abs(curr - value) < Math.abs(prev - value) ? curr : prev);\n }\n \n // Create placeholder texture (smiley face)\n function createPlaceholderTexture() {\n const canvas = document.createElement('canvas');\n canvas.width = 256;\n canvas.height = 256;\n const ctx = canvas.getContext('2d');\n ctx.fillStyle = '#3a3a4a';\n ctx.fillRect(0, 0, 256, 256);\n ctx.fillStyle = '#ffcc99';\n ctx.beginPath();\n ctx.arc(128, 128, 80, 0, Math.PI * 2);\n ctx.fill();\n ctx.fillStyle = '#333';\n ctx.beginPath();\n ctx.arc(100, 110, 10, 0, Math.PI * 2);\n ctx.arc(156, 110, 10, 0, Math.PI * 2);\n ctx.fill();\n ctx.strokeStyle = '#333';\n ctx.lineWidth = 3;\n ctx.beginPath();\n ctx.arc(128, 130, 35, 0.2, Math.PI - 0.2);\n ctx.stroke();\n return new THREE.CanvasTexture(canvas);\n }\n \n // Target image plane\n let currentTexture = createPlaceholderTexture();\n const planeMaterial = new THREE.MeshBasicMaterial({ map: currentTexture, side: THREE.DoubleSide });\n let targetPlane = new THREE.Mesh(new THREE.PlaneGeometry(1.2, 1.2), planeMaterial);\n targetPlane.position.copy(CENTER);\n scene.add(targetPlane);\n \n // Function to update texture from image URL\n function updateTextureFromUrl(url) {\n if (!url) {\n // Reset to placeholder\n planeMaterial.map = createPlaceholderTexture();\n planeMaterial.needsUpdate = true;\n // Reset plane to square\n scene.remove(targetPlane);\n targetPlane = new THREE.Mesh(new THREE.PlaneGeometry(1.2, 1.2), planeMaterial);\n targetPlane.position.copy(CENTER);\n scene.add(targetPlane);\n return;\n }\n \n const loader = new THREE.TextureLoader();\n loader.crossOrigin = 'anonymous';\n loader.load(url, (texture) => {\n texture.minFilter = THREE.LinearFilter;\n texture.magFilter = THREE.LinearFilter;\n planeMaterial.map = texture;\n planeMaterial.needsUpdate = true;\n \n // Adjust plane aspect ratio to match image\n const img = texture.image;\n if (img && img.width && img.height) {\n const aspect = img.width / img.height;\n const maxSize = 1.5;\n let planeWidth, planeHeight;\n if (aspect > 1) {\n planeWidth = maxSize;\n planeHeight = maxSize / aspect;\n } else {\n planeHeight = maxSize;\n planeWidth = maxSize * aspect;\n }\n scene.remove(targetPlane);\n targetPlane = new THREE.Mesh(\n new THREE.PlaneGeometry(planeWidth, planeHeight),\n planeMaterial\n );\n targetPlane.position.copy(CENTER);\n scene.add(targetPlane);\n }\n }, undefined, (err) => {\n console.error('Failed to load texture:', err);\n });\n }\n \n // Check for initial imageUrl\n if (props.imageUrl) {\n updateTextureFromUrl(props.imageUrl);\n }\n \n // Camera model\n const cameraGroup = new THREE.Group();\n const bodyMat = new THREE.MeshStandardMaterial({ color: 0x6699cc, metalness: 0.5, roughness: 0.3 });\n const body = new THREE.Mesh(new THREE.BoxGeometry(0.3, 0.22, 0.38), bodyMat);\n cameraGroup.add(body);\n const lens = new THREE.Mesh(\n new THREE.CylinderGeometry(0.09, 0.11, 0.18, 16),\n new THREE.MeshStandardMaterial({ color: 0x6699cc, metalness: 0.5, roughness: 0.3 })\n );\n lens.rotation.x = Math.PI / 2;\n lens.position.z = 0.26;\n cameraGroup.add(lens);\n scene.add(cameraGroup);\n \n // GREEN: Azimuth ring\n const azimuthRing = new THREE.Mesh(\n new THREE.TorusGeometry(AZIMUTH_RADIUS, 0.04, 16, 64),\n new THREE.MeshStandardMaterial({ color: 0x00ff88, emissive: 0x00ff88, emissiveIntensity: 0.3 })\n );\n azimuthRing.rotation.x = Math.PI / 2;\n azimuthRing.position.y = 0.05;\n scene.add(azimuthRing);\n \n const azimuthHandle = new THREE.Mesh(\n new THREE.SphereGeometry(0.18, 16, 16),\n new THREE.MeshStandardMaterial({ color: 0x00ff88, emissive: 0x00ff88, emissiveIntensity: 0.5 })\n );\n azimuthHandle.userData.type = 'azimuth';\n scene.add(azimuthHandle);\n \n // PINK: Elevation arc\n const arcPoints = [];\n for (let i = 0; i <= 32; i++) {\n const angle = THREE.MathUtils.degToRad(-30 + (90 * i / 32));\n arcPoints.push(new THREE.Vector3(-0.8, ELEVATION_RADIUS * Math.sin(angle) + CENTER.y, ELEVATION_RADIUS * Math.cos(angle)));\n }\n const arcCurve = new THREE.CatmullRomCurve3(arcPoints);\n const elevationArc = new THREE.Mesh(\n new THREE.TubeGeometry(arcCurve, 32, 0.04, 8, false),\n new THREE.MeshStandardMaterial({ color: 0xff69b4, emissive: 0xff69b4, emissiveIntensity: 0.3 })\n );\n scene.add(elevationArc);\n \n const elevationHandle = new THREE.Mesh(\n new THREE.SphereGeometry(0.18, 16, 16),\n new THREE.MeshStandardMaterial({ color: 0xff69b4, emissive: 0xff69b4, emissiveIntensity: 0.5 })\n );\n elevationHandle.userData.type = 'elevation';\n scene.add(elevationHandle);\n \n // ORANGE: Distance line & handle\n const distanceLineGeo = new THREE.BufferGeometry();\n const distanceLine = new THREE.Line(distanceLineGeo, new THREE.LineBasicMaterial({ color: 0xffa500 }));\n scene.add(distanceLine);\n \n const distanceHandle = new THREE.Mesh(\n new THREE.SphereGeometry(0.18, 16, 16),\n new THREE.MeshStandardMaterial({ color: 0xffa500, emissive: 0xffa500, emissiveIntensity: 0.5 })\n );\n distanceHandle.userData.type = 'distance';\n scene.add(distanceHandle);\n \n function updatePositions() {\n const distance = BASE_DISTANCE * distanceFactor;\n const azRad = THREE.MathUtils.degToRad(azimuthAngle);\n const elRad = THREE.MathUtils.degToRad(elevationAngle);\n \n const camX = distance * Math.sin(azRad) * Math.cos(elRad);\n const camY = distance * Math.sin(elRad) + CENTER.y;\n const camZ = distance * Math.cos(azRad) * Math.cos(elRad);\n \n cameraGroup.position.set(camX, camY, camZ);\n cameraGroup.lookAt(CENTER);\n \n azimuthHandle.position.set(AZIMUTH_RADIUS * Math.sin(azRad), 0.05, AZIMUTH_RADIUS * Math.cos(azRad));\n elevationHandle.position.set(-0.8, ELEVATION_RADIUS * Math.sin(elRad) + CENTER.y, ELEVATION_RADIUS * Math.cos(elRad));\n \n const orangeDist = distance - 0.5;\n distanceHandle.position.set(\n orangeDist * Math.sin(azRad) * Math.cos(elRad),\n orangeDist * Math.sin(elRad) + CENTER.y,\n orangeDist * Math.cos(azRad) * Math.cos(elRad)\n );\n distanceLineGeo.setFromPoints([cameraGroup.position.clone(), CENTER.clone()]);\n \n // Update prompt\n const azSnap = snapToNearest(azimuthAngle, azimuthSteps);\n const elSnap = snapToNearest(elevationAngle, elevationSteps);\n const distSnap = snapToNearest(distanceFactor, distanceSteps);\n const distKey = distSnap === 1 ? '1' : distSnap.toFixed(1);\n const prompt = ' ' + azimuthNames[azSnap] + ' ' + elevationNames[String(elSnap)] + ' ' + distanceNames[distKey];\n promptOverlay.textContent = prompt;\n }\n \n function updatePropsAndTrigger() {\n const azSnap = snapToNearest(azimuthAngle, azimuthSteps);\n const elSnap = snapToNearest(elevationAngle, elevationSteps);\n const distSnap = snapToNearest(distanceFactor, distanceSteps);\n \n props.value = { azimuth: azSnap, elevation: elSnap, distance: distSnap };\n trigger('change', props.value);\n }\n \n // Raycasting\n const raycaster = new THREE.Raycaster();\n const mouse = new THREE.Vector2();\n let isDragging = false;\n let dragTarget = null;\n let dragStartMouse = new THREE.Vector2();\n let dragStartDistance = 1.0;\n const intersection = new THREE.Vector3();\n \n const canvas = renderer.domElement;\n \n canvas.addEventListener('mousedown', (e) => {\n const rect = canvas.getBoundingClientRect();\n mouse.x = ((e.clientX - rect.left) / rect.width) * 2 - 1;\n mouse.y = -((e.clientY - rect.top) / rect.height) * 2 + 1;\n \n raycaster.setFromCamera(mouse, camera);\n const intersects = raycaster.intersectObjects([azimuthHandle, elevationHandle, distanceHandle]);\n \n if (intersects.length > 0) {\n isDragging = true;\n dragTarget = intersects[0].object;\n dragTarget.material.emissiveIntensity = 1.0;\n dragTarget.scale.setScalar(1.3);\n dragStartMouse.copy(mouse);\n dragStartDistance = distanceFactor;\n canvas.style.cursor = 'grabbing';\n }\n });\n \n canvas.addEventListener('mousemove', (e) => {\n const rect = canvas.getBoundingClientRect();\n mouse.x = ((e.clientX - rect.left) / rect.width) * 2 - 1;\n mouse.y = -((e.clientY - rect.top) / rect.height) * 2 + 1;\n \n if (isDragging && dragTarget) {\n raycaster.setFromCamera(mouse, camera);\n \n if (dragTarget.userData.type === 'azimuth') {\n const plane = new THREE.Plane(new THREE.Vector3(0, 1, 0), -0.05);\n if (raycaster.ray.intersectPlane(plane, intersection)) {\n azimuthAngle = THREE.MathUtils.radToDeg(Math.atan2(intersection.x, intersection.z));\n if (azimuthAngle < 0) azimuthAngle += 360;\n }\n } else if (dragTarget.userData.type === 'elevation') {\n const plane = new THREE.Plane(new THREE.Vector3(1, 0, 0), -0.8);\n if (raycaster.ray.intersectPlane(plane, intersection)) {\n const relY = intersection.y - CENTER.y;\n const relZ = intersection.z;\n elevationAngle = THREE.MathUtils.clamp(THREE.MathUtils.radToDeg(Math.atan2(relY, relZ)), -30, 60);\n }\n } else if (dragTarget.userData.type === 'distance') {\n const deltaY = mouse.y - dragStartMouse.y;\n distanceFactor = THREE.MathUtils.clamp(dragStartDistance - deltaY * 1.5, 0.6, 1.4);\n }\n updatePositions();\n } else {\n raycaster.setFromCamera(mouse, camera);\n const intersects = raycaster.intersectObjects([azimuthHandle, elevationHandle, distanceHandle]);\n [azimuthHandle, elevationHandle, distanceHandle].forEach(h => {\n h.material.emissiveIntensity = 0.5;\n h.scale.setScalar(1);\n });\n if (intersects.length > 0) {\n intersects[0].object.material.emissiveIntensity = 0.8;\n intersects[0].object.scale.setScalar(1.1);\n canvas.style.cursor = 'grab';\n } else {\n canvas.style.cursor = 'default';\n }\n }\n });\n \n const onMouseUp = () => {\n if (dragTarget) {\n dragTarget.material.emissiveIntensity = 0.5;\n dragTarget.scale.setScalar(1);\n \n // Snap and animate\n const targetAz = snapToNearest(azimuthAngle, azimuthSteps);\n const targetEl = snapToNearest(elevationAngle, elevationSteps);\n const targetDist = snapToNearest(distanceFactor, distanceSteps);\n \n const startAz = azimuthAngle, startEl = elevationAngle, startDist = distanceFactor;\n const startTime = Date.now();\n \n function animateSnap() {\n const t = Math.min((Date.now() - startTime) / 200, 1);\n const ease = 1 - Math.pow(1 - t, 3);\n \n let azDiff = targetAz - startAz;\n if (azDiff > 180) azDiff -= 360;\n if (azDiff < -180) azDiff += 360;\n azimuthAngle = startAz + azDiff * ease;\n if (azimuthAngle < 0) azimuthAngle += 360;\n if (azimuthAngle >= 360) azimuthAngle -= 360;\n \n elevationAngle = startEl + (targetEl - startEl) * ease;\n distanceFactor = startDist + (targetDist - startDist) * ease;\n \n updatePositions();\n if (t < 1) requestAnimationFrame(animateSnap);\n else updatePropsAndTrigger();\n }\n animateSnap();\n }\n isDragging = false;\n dragTarget = null;\n canvas.style.cursor = 'default';\n };\n \n canvas.addEventListener('mouseup', onMouseUp);\n canvas.addEventListener('mouseleave', onMouseUp);\n // Touch support for mobile\n canvas.addEventListener('touchstart', (e) => {\n e.preventDefault();\n const touch = e.touches[0];\n const rect = canvas.getBoundingClientRect();\n mouse.x = ((touch.clientX - rect.left) / rect.width) * 2 - 1;\n mouse.y = -((touch.clientY - rect.top) / rect.height) * 2 + 1;\n \n raycaster.setFromCamera(mouse, camera);\n const intersects = raycaster.intersectObjects([azimuthHandle, elevationHandle, distanceHandle]);\n \n if (intersects.length > 0) {\n isDragging = true;\n dragTarget = intersects[0].object;\n dragTarget.material.emissiveIntensity = 1.0;\n dragTarget.scale.setScalar(1.3);\n dragStartMouse.copy(mouse);\n dragStartDistance = distanceFactor;\n }\n }, { passive: false });\n \n canvas.addEventListener('touchmove', (e) => {\n e.preventDefault();\n const touch = e.touches[0];\n const rect = canvas.getBoundingClientRect();\n mouse.x = ((touch.clientX - rect.left) / rect.width) * 2 - 1;\n mouse.y = -((touch.clientY - rect.top) / rect.height) * 2 + 1;\n \n if (isDragging && dragTarget) {\n raycaster.setFromCamera(mouse, camera);\n \n if (dragTarget.userData.type === 'azimuth') {\n const plane = new THREE.Plane(new THREE.Vector3(0, 1, 0), -0.05);\n if (raycaster.ray.intersectPlane(plane, intersection)) {\n azimuthAngle = THREE.MathUtils.radToDeg(Math.atan2(intersection.x, intersection.z));\n if (azimuthAngle < 0) azimuthAngle += 360;\n }\n } else if (dragTarget.userData.type === 'elevation') {\n const plane = new THREE.Plane(new THREE.Vector3(1, 0, 0), -0.8);\n if (raycaster.ray.intersectPlane(plane, intersection)) {\n const relY = intersection.y - CENTER.y;\n const relZ = intersection.z;\n elevationAngle = THREE.MathUtils.clamp(THREE.MathUtils.radToDeg(Math.atan2(relY, relZ)), -30, 60);\n }\n } else if (dragTarget.userData.type === 'distance') {\n const deltaY = mouse.y - dragStartMouse.y;\n distanceFactor = THREE.MathUtils.clamp(dragStartDistance - deltaY * 1.5, 0.6, 1.4);\n }\n updatePositions();\n }\n }, { passive: false });\n \n canvas.addEventListener('touchend', (e) => {\n e.preventDefault();\n onMouseUp();\n }, { passive: false });\n \n canvas.addEventListener('touchcancel', (e) => {\n e.preventDefault();\n onMouseUp();\n }, { passive: false });\n \n // Initial update\n updatePositions();\n \n // Render loop\n function render() {\n requestAnimationFrame(render);\n renderer.render(scene, camera);\n }\n render();\n \n // Handle resize\n new ResizeObserver(() => {\n camera.aspect = wrapper.clientWidth / wrapper.clientHeight;\n camera.updateProjectionMatrix();\n renderer.setSize(wrapper.clientWidth, wrapper.clientHeight);\n }).observe(wrapper);\n \n // Store update functions for external calls\n wrapper._updateFromProps = (newVal) => {\n if (newVal && typeof newVal === 'object') {\n azimuthAngle = newVal.azimuth ?? azimuthAngle;\n elevationAngle = newVal.elevation ?? elevationAngle;\n distanceFactor = newVal.distance ?? distanceFactor;\n updatePositions();\n }\n };\n \n wrapper._updateTexture = updateTextureFromUrl;\n \n // Watch for prop changes (imageUrl and value)\n let lastImageUrl = props.imageUrl;\n let lastValue = JSON.stringify(props.value);\n setInterval(() => {\n // Check imageUrl changes\n if (props.imageUrl !== lastImageUrl) {\n lastImageUrl = props.imageUrl;\n updateTextureFromUrl(props.imageUrl);\n }\n // Check value changes (from sliders)\n const currentValue = JSON.stringify(props.value);\n if (currentValue !== lastValue) {\n lastValue = currentValue;\n if (props.value && typeof props.value === 'object') {\n azimuthAngle = props.value.azimuth ?? azimuthAngle;\n elevationAngle = props.value.elevation ?? elevationAngle;\n distanceFactor = props.value.distance ?? distanceFactor;\n updatePositions();\n }\n }\n }, 100);\n };\n \n initScene();\n })();\n ",
"default_props": {
"value": {
"azimuth": 0,
"elevation": 0,
"distance": 1.0
},
"imageUrl": null
},
"head": "",
"python_code": "class CameraControl3D(gr.HTML):\n \"\"\"\n A 3D camera control component using Three.js.\n Outputs: { azimuth: number, elevation: number, distance: number }\n Accepts imageUrl prop to display user's uploaded image on the plane.\n \"\"\"\n def __init__(self, value=None, imageUrl=None, **kwargs):\n if value is None:\n value = {\"azimuth\": 0, \"elevation\": 0, \"distance\": 1.0}\n\n html_template = \"\"\"\n \n \"\"\"\n\n js_on_load = \"\"\"\n (() => {\n const wrapper = element.querySelector('#camera-control-wrapper');\n const promptOverlay = element.querySelector('#prompt-overlay');\n\n // Wait for THREE to load\n const initScene = () => {\n if (typeof THREE === 'undefined') {\n setTimeout(initScene, 100);\n return;\n }\n\n // Scene setup\n const scene = new THREE.Scene();\n scene.background = new THREE.Color(0x1a1a1a);\n\n const camera = new THREE.PerspectiveCamera(50, wrapper.clientWidth / wrapper.clientHeight, 0.1, 1000);\n camera.position.set(4.5, 3, 4.5);\n camera.lookAt(0, 0.75, 0);\n\n const renderer = new THREE.WebGLRenderer({ antialias: true });\n renderer.setSize(wrapper.clientWidth, wrapper.clientHeight);\n renderer.setPixelRatio(Math.min(window.devicePixelRatio, 2));\n wrapper.insertBefore(renderer.domElement, promptOverlay);\n\n // Lighting\n scene.add(new THREE.AmbientLight(0xffffff, 0.6));\n const dirLight = new THREE.DirectionalLight(0xffffff, 0.6);\n dirLight.position.set(5, 10, 5);\n scene.add(dirLight);\n\n // Grid\n scene.add(new THREE.GridHelper(8, 16, 0x333333, 0x222222));\n\n // Constants - reduced distances for tighter framing\n const CENTER = new THREE.Vector3(0, 0.75, 0);\n const BASE_DISTANCE = 1.6;\n const AZIMUTH_RADIUS = 2.4;\n const ELEVATION_RADIUS = 1.8;\n\n // State\n let azimuthAngle = props.value?.azimuth || 0;\n let elevationAngle = props.value?.elevation || 0;\n let distanceFactor = props.value?.distance || 1.0;\n\n // Mappings - reduced wide shot multiplier\n const azimuthSteps = [0, 45, 90, 135, 180, 225, 270, 315];\n const elevationSteps = [-30, 0, 30, 60];\n const distanceSteps = [0.6, 1.0, 1.4];\n\n const azimuthNames = {\n 0: 'front view', 45: 'front-right quarter view', 90: 'right side view',\n 135: 'back-right quarter view', 180: 'back view', 225: 'back-left quarter view',\n 270: 'left side view', 315: 'front-left quarter view'\n };\n const elevationNames = { '-30': 'low-angle shot', '0': 'eye-level shot', '30': 'elevated shot', '60': 'high-angle shot' };\n const distanceNames = { '0.6': 'close-up', '1': 'medium shot', '1.4': 'wide shot' };\n\n function snapToNearest(value, steps) {\n return steps.reduce((prev, curr) => Math.abs(curr - value) < Math.abs(prev - value) ? curr : prev);\n }\n\n // Create placeholder texture (smiley face)\n function createPlaceholderTexture() {\n const canvas = document.createElement('canvas');\n canvas.width = 256;\n canvas.height = 256;\n const ctx = canvas.getContext('2d');\n ctx.fillStyle = '#3a3a4a';\n ctx.fillRect(0, 0, 256, 256);\n ctx.fillStyle = '#ffcc99';\n ctx.beginPath();\n ctx.arc(128, 128, 80, 0, Math.PI * 2);\n ctx.fill();\n ctx.fillStyle = '#333';\n ctx.beginPath();\n ctx.arc(100, 110, 10, 0, Math.PI * 2);\n ctx.arc(156, 110, 10, 0, Math.PI * 2);\n ctx.fill();\n ctx.strokeStyle = '#333';\n ctx.lineWidth = 3;\n ctx.beginPath();\n ctx.arc(128, 130, 35, 0.2, Math.PI - 0.2);\n ctx.stroke();\n return new THREE.CanvasTexture(canvas);\n }\n\n // Target image plane\n let currentTexture = createPlaceholderTexture();\n const planeMaterial = new THREE.MeshBasicMaterial({ map: currentTexture, side: THREE.DoubleSide });\n let targetPlane = new THREE.Mesh(new THREE.PlaneGeometry(1.2, 1.2), planeMaterial);\n targetPlane.position.copy(CENTER);\n scene.add(targetPlane);\n\n // Function to update texture from image URL\n function updateTextureFromUrl(url) {\n if (!url) {\n // Reset to placeholder\n planeMaterial.map = createPlaceholderTexture();\n planeMaterial.needsUpdate = true;\n // Reset plane to square\n scene.remove(targetPlane);\n targetPlane = new THREE.Mesh(new THREE.PlaneGeometry(1.2, 1.2), planeMaterial);\n targetPlane.position.copy(CENTER);\n scene.add(targetPlane);\n return;\n }\n\n const loader = new THREE.TextureLoader();\n loader.crossOrigin = 'anonymous';\n loader.load(url, (texture) => {\n texture.minFilter = THREE.LinearFilter;\n texture.magFilter = THREE.LinearFilter;\n planeMaterial.map = texture;\n planeMaterial.needsUpdate = true;\n\n // Adjust plane aspect ratio to match image\n const img = texture.image;\n if (img && img.width && img.height) {\n const aspect = img.width / img.height;\n const maxSize = 1.5;\n let planeWidth, planeHeight;\n if (aspect > 1) {\n planeWidth = maxSize;\n planeHeight = maxSize / aspect;\n } else {\n planeHeight = maxSize;\n planeWidth = maxSize * aspect;\n }\n scene.remove(targetPlane);\n targetPlane = new THREE.Mesh(\n new THREE.PlaneGeometry(planeWidth, planeHeight),\n planeMaterial\n );\n targetPlane.position.copy(CENTER);\n scene.add(targetPlane);\n }\n }, undefined, (err) => {\n console.error('Failed to load texture:', err);\n });\n }\n\n // Check for initial imageUrl\n if (props.imageUrl) {\n updateTextureFromUrl(props.imageUrl);\n }\n\n // Camera model\n const cameraGroup = new THREE.Group();\n const bodyMat = new THREE.MeshStandardMaterial({ color: 0x6699cc, metalness: 0.5, roughness: 0.3 });\n const body = new THREE.Mesh(new THREE.BoxGeometry(0.3, 0.22, 0.38), bodyMat);\n cameraGroup.add(body);\n const lens = new THREE.Mesh(\n new THREE.CylinderGeometry(0.09, 0.11, 0.18, 16),\n new THREE.MeshStandardMaterial({ color: 0x6699cc, metalness: 0.5, roughness: 0.3 })\n );\n lens.rotation.x = Math.PI / 2;\n lens.position.z = 0.26;\n cameraGroup.add(lens);\n scene.add(cameraGroup);\n\n // GREEN: Azimuth ring\n const azimuthRing = new THREE.Mesh(\n new THREE.TorusGeometry(AZIMUTH_RADIUS, 0.04, 16, 64),\n new THREE.MeshStandardMaterial({ color: 0x00ff88, emissive: 0x00ff88, emissiveIntensity: 0.3 })\n );\n azimuthRing.rotation.x = Math.PI / 2;\n azimuthRing.position.y = 0.05;\n scene.add(azimuthRing);\n\n const azimuthHandle = new THREE.Mesh(\n new THREE.SphereGeometry(0.18, 16, 16),\n new THREE.MeshStandardMaterial({ color: 0x00ff88, emissive: 0x00ff88, emissiveIntensity: 0.5 })\n );\n azimuthHandle.userData.type = 'azimuth';\n scene.add(azimuthHandle);\n\n // PINK: Elevation arc\n const arcPoints = [];\n for (let i = 0; i <= 32; i++) {\n const angle = THREE.MathUtils.degToRad(-30 + (90 * i / 32));\n arcPoints.push(new THREE.Vector3(-0.8, ELEVATION_RADIUS * Math.sin(angle) + CENTER.y, ELEVATION_RADIUS * Math.cos(angle)));\n }\n const arcCurve = new THREE.CatmullRomCurve3(arcPoints);\n const elevationArc = new THREE.Mesh(\n new THREE.TubeGeometry(arcCurve, 32, 0.04, 8, false),\n new THREE.MeshStandardMaterial({ color: 0xff69b4, emissive: 0xff69b4, emissiveIntensity: 0.3 })\n );\n scene.add(elevationArc);\n\n const elevationHandle = new THREE.Mesh(\n new THREE.SphereGeometry(0.18, 16, 16),\n new THREE.MeshStandardMaterial({ color: 0xff69b4, emissive: 0xff69b4, emissiveIntensity: 0.5 })\n );\n elevationHandle.userData.type = 'elevation';\n scene.add(elevationHandle);\n\n // ORANGE: Distance line & handle\n const distanceLineGeo = new THREE.BufferGeometry();\n const distanceLine = new THREE.Line(distanceLineGeo, new THREE.LineBasicMaterial({ color: 0xffa500 }));\n scene.add(distanceLine);\n\n const distanceHandle = new THREE.Mesh(\n new THREE.SphereGeometry(0.18, 16, 16),\n new THREE.MeshStandardMaterial({ color: 0xffa500, emissive: 0xffa500, emissiveIntensity: 0.5 })\n );\n distanceHandle.userData.type = 'distance';\n scene.add(distanceHandle);\n\n function updatePositions() {\n const distance = BASE_DISTANCE * distanceFactor;\n const azRad = THREE.MathUtils.degToRad(azimuthAngle);\n const elRad = THREE.MathUtils.degToRad(elevationAngle);\n\n const camX = distance * Math.sin(azRad) * Math.cos(elRad);\n const camY = distance * Math.sin(elRad) + CENTER.y;\n const camZ = distance * Math.cos(azRad) * Math.cos(elRad);\n\n cameraGroup.position.set(camX, camY, camZ);\n cameraGroup.lookAt(CENTER);\n\n azimuthHandle.position.set(AZIMUTH_RADIUS * Math.sin(azRad), 0.05, AZIMUTH_RADIUS * Math.cos(azRad));\n elevationHandle.position.set(-0.8, ELEVATION_RADIUS * Math.sin(elRad) + CENTER.y, ELEVATION_RADIUS * Math.cos(elRad));\n\n const orangeDist = distance - 0.5;\n distanceHandle.position.set(\n orangeDist * Math.sin(azRad) * Math.cos(elRad),\n orangeDist * Math.sin(elRad) + CENTER.y,\n orangeDist * Math.cos(azRad) * Math.cos(elRad)\n );\n distanceLineGeo.setFromPoints([cameraGroup.position.clone(), CENTER.clone()]);\n\n // Update prompt\n const azSnap = snapToNearest(azimuthAngle, azimuthSteps);\n const elSnap = snapToNearest(elevationAngle, elevationSteps);\n const distSnap = snapToNearest(distanceFactor, distanceSteps);\n const distKey = distSnap === 1 ? '1' : distSnap.toFixed(1);\n const prompt = ' ' + azimuthNames[azSnap] + ' ' + elevationNames[String(elSnap)] + ' ' + distanceNames[distKey];\n promptOverlay.textContent = prompt;\n }\n\n function updatePropsAndTrigger() {\n const azSnap = snapToNearest(azimuthAngle, azimuthSteps);\n const elSnap = snapToNearest(elevationAngle, elevationSteps);\n const distSnap = snapToNearest(distanceFactor, distanceSteps);\n\n props.value = { azimuth: azSnap, elevation: elSnap, distance: distSnap };\n trigger('change', props.value);\n }\n\n // Raycasting\n const raycaster = new THREE.Raycaster();\n const mouse = new THREE.Vector2();\n let isDragging = false;\n let dragTarget = null;\n let dragStartMouse = new THREE.Vector2();\n let dragStartDistance = 1.0;\n const intersection = new THREE.Vector3();\n\n const canvas = renderer.domElement;\n\n canvas.addEventListener('mousedown', (e) => {\n const rect = canvas.getBoundingClientRect();\n mouse.x = ((e.clientX - rect.left) / rect.width) * 2 - 1;\n mouse.y = -((e.clientY - rect.top) / rect.height) * 2 + 1;\n\n raycaster.setFromCamera(mouse, camera);\n const intersects = raycaster.intersectObjects([azimuthHandle, elevationHandle, distanceHandle]);\n\n if (intersects.length > 0) {\n isDragging = true;\n dragTarget = intersects[0].object;\n dragTarget.material.emissiveIntensity = 1.0;\n dragTarget.scale.setScalar(1.3);\n dragStartMouse.copy(mouse);\n dragStartDistance = distanceFactor;\n canvas.style.cursor = 'grabbing';\n }\n });\n\n canvas.addEventListener('mousemove', (e) => {\n const rect = canvas.getBoundingClientRect();\n mouse.x = ((e.clientX - rect.left) / rect.width) * 2 - 1;\n mouse.y = -((e.clientY - rect.top) / rect.height) * 2 + 1;\n\n if (isDragging && dragTarget) {\n raycaster.setFromCamera(mouse, camera);\n\n if (dragTarget.userData.type === 'azimuth') {\n const plane = new THREE.Plane(new THREE.Vector3(0, 1, 0), -0.05);\n if (raycaster.ray.intersectPlane(plane, intersection)) {\n azimuthAngle = THREE.MathUtils.radToDeg(Math.atan2(intersection.x, intersection.z));\n if (azimuthAngle < 0) azimuthAngle += 360;\n }\n } else if (dragTarget.userData.type === 'elevation') {\n const plane = new THREE.Plane(new THREE.Vector3(1, 0, 0), -0.8);\n if (raycaster.ray.intersectPlane(plane, intersection)) {\n const relY = intersection.y - CENTER.y;\n const relZ = intersection.z;\n elevationAngle = THREE.MathUtils.clamp(THREE.MathUtils.radToDeg(Math.atan2(relY, relZ)), -30, 60);\n }\n } else if (dragTarget.userData.type === 'distance') {\n const deltaY = mouse.y - dragStartMouse.y;\n distanceFactor = THREE.MathUtils.clamp(dragStartDistance - deltaY * 1.5, 0.6, 1.4);\n }\n updatePositions();\n } else {\n raycaster.setFromCamera(mouse, camera);\n const intersects = raycaster.intersectObjects([azimuthHandle, elevationHandle, distanceHandle]);\n [azimuthHandle, elevationHandle, distanceHandle].forEach(h => {\n h.material.emissiveIntensity = 0.5;\n h.scale.setScalar(1);\n });\n if (intersects.length > 0) {\n intersects[0].object.material.emissiveIntensity = 0.8;\n intersects[0].object.scale.setScalar(1.1);\n canvas.style.cursor = 'grab';\n } else {\n canvas.style.cursor = 'default';\n }\n }\n });\n\n const onMouseUp = () => {\n if (dragTarget) {\n dragTarget.material.emissiveIntensity = 0.5;\n dragTarget.scale.setScalar(1);\n\n // Snap and animate\n const targetAz = snapToNearest(azimuthAngle, azimuthSteps);\n const targetEl = snapToNearest(elevationAngle, elevationSteps);\n const targetDist = snapToNearest(distanceFactor, distanceSteps);\n\n const startAz = azimuthAngle, startEl = elevationAngle, startDist = distanceFactor;\n const startTime = Date.now();\n\n function animateSnap() {\n const t = Math.min((Date.now() - startTime) / 200, 1);\n const ease = 1 - Math.pow(1 - t, 3);\n\n let azDiff = targetAz - startAz;\n if (azDiff > 180) azDiff -= 360;\n if (azDiff < -180) azDiff += 360;\n azimuthAngle = startAz + azDiff * ease;\n if (azimuthAngle < 0) azimuthAngle += 360;\n if (azimuthAngle >= 360) azimuthAngle -= 360;\n\n elevationAngle = startEl + (targetEl - startEl) * ease;\n distanceFactor = startDist + (targetDist - startDist) * ease;\n\n updatePositions();\n if (t < 1) requestAnimationFrame(animateSnap);\n else updatePropsAndTrigger();\n }\n animateSnap();\n }\n isDragging = false;\n dragTarget = null;\n canvas.style.cursor = 'default';\n };\n\n canvas.addEventListener('mouseup', onMouseUp);\n canvas.addEventListener('mouseleave', onMouseUp);\n // Touch support for mobile\n canvas.addEventListener('touchstart', (e) => {\n e.preventDefault();\n const touch = e.touches[0];\n const rect = canvas.getBoundingClientRect();\n mouse.x = ((touch.clientX - rect.left) / rect.width) * 2 - 1;\n mouse.y = -((touch.clientY - rect.top) / rect.height) * 2 + 1;\n\n raycaster.setFromCamera(mouse, camera);\n const intersects = raycaster.intersectObjects([azimuthHandle, elevationHandle, distanceHandle]);\n\n if (intersects.length > 0) {\n isDragging = true;\n dragTarget = intersects[0].object;\n dragTarget.material.emissiveIntensity = 1.0;\n dragTarget.scale.setScalar(1.3);\n dragStartMouse.copy(mouse);\n dragStartDistance = distanceFactor;\n }\n }, { passive: false });\n\n canvas.addEventListener('touchmove', (e) => {\n e.preventDefault();\n const touch = e.touches[0];\n const rect = canvas.getBoundingClientRect();\n mouse.x = ((touch.clientX - rect.left) / rect.width) * 2 - 1;\n mouse.y = -((touch.clientY - rect.top) / rect.height) * 2 + 1;\n\n if (isDragging && dragTarget) {\n raycaster.setFromCamera(mouse, camera);\n\n if (dragTarget.userData.type === 'azimuth') {\n const plane = new THREE.Plane(new THREE.Vector3(0, 1, 0), -0.05);\n if (raycaster.ray.intersectPlane(plane, intersection)) {\n azimuthAngle = THREE.MathUtils.radToDeg(Math.atan2(intersection.x, intersection.z));\n if (azimuthAngle < 0) azimuthAngle += 360;\n }\n } else if (dragTarget.userData.type === 'elevation') {\n const plane = new THREE.Plane(new THREE.Vector3(1, 0, 0), -0.8);\n if (raycaster.ray.intersectPlane(plane, intersection)) {\n const relY = intersection.y - CENTER.y;\n const relZ = intersection.z;\n elevationAngle = THREE.MathUtils.clamp(THREE.MathUtils.radToDeg(Math.atan2(relY, relZ)), -30, 60);\n }\n } else if (dragTarget.userData.type === 'distance') {\n const deltaY = mouse.y - dragStartMouse.y;\n distanceFactor = THREE.MathUtils.clamp(dragStartDistance - deltaY * 1.5, 0.6, 1.4);\n }\n updatePositions();\n }\n }, { passive: false });\n\n canvas.addEventListener('touchend', (e) => {\n e.preventDefault();\n onMouseUp();\n }, { passive: false });\n\n canvas.addEventListener('touchcancel', (e) => {\n e.preventDefault();\n onMouseUp();\n }, { passive: false });\n\n // Initial update\n updatePositions();\n\n // Render loop\n function render() {\n requestAnimationFrame(render);\n renderer.render(scene, camera);\n }\n render();\n\n // Handle resize\n new ResizeObserver(() => {\n camera.aspect = wrapper.clientWidth / wrapper.clientHeight;\n camera.updateProjectionMatrix();\n renderer.setSize(wrapper.clientWidth, wrapper.clientHeight);\n }).observe(wrapper);\n\n // Store update functions for external calls\n wrapper._updateFromProps = (newVal) => {\n if (newVal && typeof newVal === 'object') {\n azimuthAngle = newVal.azimuth ?? azimuthAngle;\n elevationAngle = newVal.elevation ?? elevationAngle;\n distanceFactor = newVal.distance ?? distanceFactor;\n updatePositions();\n }\n };\n\n wrapper._updateTexture = updateTextureFromUrl;\n\n // Watch for prop changes (imageUrl and value)\n let lastImageUrl = props.imageUrl;\n let lastValue = JSON.stringify(props.value);\n setInterval(() => {\n // Check imageUrl changes\n if (props.imageUrl !== lastImageUrl) {\n lastImageUrl = props.imageUrl;\n updateTextureFromUrl(props.imageUrl);\n }\n // Check value changes (from sliders)\n const currentValue = JSON.stringify(props.value);\n if (currentValue !== lastValue) {\n lastValue = currentValue;\n if (props.value && typeof props.value === 'object') {\n azimuthAngle = props.value.azimuth ?? azimuthAngle;\n elevationAngle = props.value.elevation ?? elevationAngle;\n distanceFactor = props.value.distance ?? distanceFactor;\n updatePositions();\n }\n }\n }, 100);\n };\n\n initScene();\n })();\n \"\"\"\n\n super().__init__(\n value=value,\n html_template=html_template,\n js_on_load=js_on_load,\n imageUrl=imageUrl,\n **kwargs\n )\n",
"repo_url": "https://huggingface.co/spaces/multimodalart/qwen-image-multiple-angles-3d-camera/"
}