| 1 |
- {"ast":null,"code":"import { Vector3 } from \"../Maths/math.vector.js\";\nimport { CreateLines } from \"../Meshes/Builders/linesBuilder.js\";\n/**\n * As raycast might be hard to debug, the RayHelper can help rendering the different rays\n * in order to better appreciate the issue one might have.\n * @see https://doc.babylonjs.com/features/featuresDeepDive/mesh/interactions/picking_collisions#debugging\n */\nexport class RayHelper {\n /**\n * Helper function to create a colored helper in a scene in one line.\n * @param ray Defines the ray we are currently trying to visualize\n * @param scene Defines the scene the ray is used in\n * @param color Defines the color we want to see the ray in\n * @returns The newly created ray helper.\n */\n static CreateAndShow(ray, scene, color) {\n const helper = new RayHelper(ray);\n helper.show(scene, color);\n return helper;\n }\n /**\n * Instantiate a new ray helper.\n * As raycast might be hard to debug, the RayHelper can help rendering the different rays\n * in order to better appreciate the issue one might have.\n * @see https://doc.babylonjs.com/features/featuresDeepDive/mesh/interactions/picking_collisions#debugging\n * @param ray Defines the ray we are currently trying to visualize\n */\n constructor(ray) {\n this.ray = ray;\n }\n /**\n * Shows the ray we are willing to debug.\n * @param scene Defines the scene the ray needs to be rendered in\n * @param color Defines the color the ray needs to be rendered in\n */\n show(scene, color) {\n if (!this._renderFunction && this.ray) {\n const ray = this.ray;\n this._renderFunction = () => this._render();\n this._scene = scene;\n this._renderPoints = [ray.origin, ray.origin.add(ray.direction.scale(ray.length))];\n this._renderLine = CreateLines(\"ray\", {\n points: this._renderPoints,\n updatable: true\n }, scene);\n this._renderLine.isPickable = false;\n if (this._renderFunction) {\n this._scene.registerBeforeRender(this._renderFunction);\n }\n }\n if (color && this._renderLine) {\n this._renderLine.color.copyFrom(color);\n }\n }\n /**\n * Hides the ray we are debugging.\n */\n hide() {\n if (this._renderFunction && this._scene) {\n this._scene.unregisterBeforeRender(this._renderFunction);\n this._scene = null;\n this._renderFunction = null;\n if (this._renderLine) {\n this._renderLine.dispose();\n this._renderLine = null;\n }\n this._renderPoints = [];\n }\n }\n _render() {\n var _this$_renderLine;\n const ray = this.ray;\n if (!ray) {\n return;\n }\n const point = this._renderPoints[1];\n const len = Math.min(ray.length, 1000000);\n point.copyFrom(ray.direction);\n point.scaleInPlace(len);\n point.addInPlace(ray.origin);\n this._renderPoints[0].copyFrom(ray.origin);\n CreateLines(\"ray\", {\n points: this._renderPoints,\n updatable: true,\n instance: this._renderLine\n }, this._scene);\n (_this$_renderLine = this._renderLine) === null || _this$_renderLine === void 0 || _this$_renderLine.refreshBoundingInfo();\n }\n /**\n * Attach a ray helper to a mesh so that we can easily see its orientation for instance or information like its normals.\n * @param mesh Defines the mesh we want the helper attached to\n * @param meshSpaceDirection Defines the direction of the Ray in mesh space (local space of the mesh node)\n * @param meshSpaceOrigin Defines the origin of the Ray in mesh space (local space of the mesh node)\n * @param length Defines the length of the ray\n */\n attachToMesh(mesh, meshSpaceDirection, meshSpaceOrigin, length) {\n this._attachedToMesh = mesh;\n const ray = this.ray;\n if (!ray) {\n return;\n }\n if (!ray.direction) {\n ray.direction = Vector3.Zero();\n }\n if (!ray.origin) {\n ray.origin = Vector3.Zero();\n }\n if (length) {\n ray.length = length;\n }\n if (!meshSpaceOrigin) {\n meshSpaceOrigin = Vector3.Zero();\n }\n if (!meshSpaceDirection) {\n // -1 so that this will work with Mesh.lookAt\n meshSpaceDirection = new Vector3(0, 0, -1);\n }\n if (!this._scene) {\n this._scene = mesh.getScene();\n }\n if (!this._meshSpaceDirection) {\n this._meshSpaceDirection = meshSpaceDirection.clone();\n this._meshSpaceOrigin = meshSpaceOrigin.clone();\n } else {\n this._meshSpaceDirection.copyFrom(meshSpaceDirection);\n this._meshSpaceOrigin.copyFrom(meshSpaceOrigin);\n }\n if (!this._onAfterRenderObserver) {\n this._onAfterRenderObserver = this._scene.onBeforeRenderObservable.add(() => this._updateToMesh());\n this._onAfterStepObserver = this._scene.onAfterStepObservable.add(() => this._updateToMesh());\n }\n // force world matrix computation before the first ray helper computation\n this._attachedToMesh.computeWorldMatrix(true);\n this._updateToMesh();\n }\n /**\n * Detach the ray helper from the mesh it has previously been attached to.\n */\n detachFromMesh() {\n if (this._attachedToMesh && this._scene) {\n if (this._onAfterRenderObserver) {\n this._scene.onBeforeRenderObservable.remove(this._onAfterRenderObserver);\n this._scene.onAfterStepObservable.remove(this._onAfterStepObserver);\n }\n this._attachedToMesh = null;\n this._onAfterRenderObserver = null;\n this._onAfterStepObserver = null;\n this._scene = null;\n }\n }\n _updateToMesh() {\n const ray = this.ray;\n if (!this._attachedToMesh || !ray) {\n return;\n }\n if (this._attachedToMesh.isDisposed()) {\n this.detachFromMesh();\n return;\n }\n this._attachedToMesh.getDirectionToRef(this._meshSpaceDirection, ray.direction);\n Vector3.TransformCoordinatesToRef(this._meshSpaceOrigin, this._attachedToMesh.getWorldMatrix(), ray.origin);\n }\n /**\n * Dispose the helper and release its associated resources.\n */\n dispose() {\n this.hide();\n this.detachFromMesh();\n this.ray = null;\n }\n}","map":{"version":3,"names":["Vector3","CreateLines","RayHelper","CreateAndShow","ray","scene","color","helper","show","constructor","_renderFunction","_render","_scene","_renderPoints","origin","add","direction","scale","length","_renderLine","points","updatable","isPickable","registerBeforeRender","copyFrom","hide","unregisterBeforeRender","dispose","_this$_renderLine","point","len","Math","min","scaleInPlace","addInPlace","instance","refreshBoundingInfo","attachToMesh","mesh","meshSpaceDirection","meshSpaceOrigin","_attachedToMesh","Zero","getScene","_meshSpaceDirection","clone","_meshSpaceOrigin","_onAfterRenderObserver","onBeforeRenderObservable","_updateToMesh","_onAfterStepObserver","onAfterStepObservable","computeWorldMatrix","detachFromMesh","remove","isDisposed","getDirectionToRef","TransformCoordinatesToRef","getWorldMatrix"],"sources":["F:/workspace/202226701027/huinongbao-app/node_modules/@babylonjs/core/Debug/rayHelper.js"],"sourcesContent":["import { Vector3 } from \"../Maths/math.vector.js\";\nimport { CreateLines } from \"../Meshes/Builders/linesBuilder.js\";\n/**\n * As raycast might be hard to debug, the RayHelper can help rendering the different rays\n * in order to better appreciate the issue one might have.\n * @see https://doc.babylonjs.com/features/featuresDeepDive/mesh/interactions/picking_collisions#debugging\n */\nexport class RayHelper {\n /**\n * Helper function to create a colored helper in a scene in one line.\n * @param ray Defines the ray we are currently trying to visualize\n * @param scene Defines the scene the ray is used in\n * @param color Defines the color we want to see the ray in\n * @returns The newly created ray helper.\n */\n static CreateAndShow(ray, scene, color) {\n const helper = new RayHelper(ray);\n helper.show(scene, color);\n return helper;\n }\n /**\n * Instantiate a new ray helper.\n * As raycast might be hard to debug, the RayHelper can help rendering the different rays\n * in order to better appreciate the issue one might have.\n * @see https://doc.babylonjs.com/features/featuresDeepDive/mesh/interactions/picking_collisions#debugging\n * @param ray Defines the ray we are currently trying to visualize\n */\n constructor(ray) {\n this.ray = ray;\n }\n /**\n * Shows the ray we are willing to debug.\n * @param scene Defines the scene the ray needs to be rendered in\n * @param color Defines the color the ray needs to be rendered in\n */\n show(scene, color) {\n if (!this._renderFunction && this.ray) {\n const ray = this.ray;\n this._renderFunction = () => this._render();\n this._scene = scene;\n this._renderPoints = [ray.origin, ray.origin.add(ray.direction.scale(ray.length))];\n this._renderLine = CreateLines(\"ray\", { points: this._renderPoints, updatable: true }, scene);\n this._renderLine.isPickable = false;\n if (this._renderFunction) {\n this._scene.registerBeforeRender(this._renderFunction);\n }\n }\n if (color && this._renderLine) {\n this._renderLine.color.copyFrom(color);\n }\n }\n /**\n * Hides the ray we are debugging.\n */\n hide() {\n if (this._renderFunction && this._scene) {\n this._scene.unregisterBeforeRender(this._renderFunction);\n this._scene = null;\n this._renderFunction = null;\n if (this._renderLine) {\n this._renderLine.dispose();\n this._renderLine = null;\n }\n this._renderPoints = [];\n }\n }\n _render() {\n const ray = this.ray;\n if (!ray) {\n return;\n }\n const point = this._renderPoints[1];\n const len = Math.min(ray.length, 1000000);\n point.copyFrom(ray.direction);\n point.scaleInPlace(len);\n point.addInPlace(ray.origin);\n this._renderPoints[0].copyFrom(ray.origin);\n CreateLines(\"ray\", { points: this._renderPoints, updatable: true, instance: this._renderLine }, this._scene);\n this._renderLine?.refreshBoundingInfo();\n }\n /**\n * Attach a ray helper to a mesh so that we can easily see its orientation for instance or information like its normals.\n * @param mesh Defines the mesh we want the helper attached to\n * @param meshSpaceDirection Defines the direction of the Ray in mesh space (local space of the mesh node)\n * @param meshSpaceOrigin Defines the origin of the Ray in mesh space (local space of the mesh node)\n * @param length Defines the length of the ray\n */\n attachToMesh(mesh, meshSpaceDirection, meshSpaceOrigin, length) {\n this._attachedToMesh = mesh;\n const ray = this.ray;\n if (!ray) {\n return;\n }\n if (!ray.direction) {\n ray.direction = Vector3.Zero();\n }\n if (!ray.origin) {\n ray.origin = Vector3.Zero();\n }\n if (length) {\n ray.length = length;\n }\n if (!meshSpaceOrigin) {\n meshSpaceOrigin = Vector3.Zero();\n }\n if (!meshSpaceDirection) {\n // -1 so that this will work with Mesh.lookAt\n meshSpaceDirection = new Vector3(0, 0, -1);\n }\n if (!this._scene) {\n this._scene = mesh.getScene();\n }\n if (!this._meshSpaceDirection) {\n this._meshSpaceDirection = meshSpaceDirection.clone();\n this._meshSpaceOrigin = meshSpaceOrigin.clone();\n }\n else {\n this._meshSpaceDirection.copyFrom(meshSpaceDirection);\n this._meshSpaceOrigin.copyFrom(meshSpaceOrigin);\n }\n if (!this._onAfterRenderObserver) {\n this._onAfterRenderObserver = this._scene.onBeforeRenderObservable.add(() => this._updateToMesh());\n this._onAfterStepObserver = this._scene.onAfterStepObservable.add(() => this._updateToMesh());\n }\n // force world matrix computation before the first ray helper computation\n this._attachedToMesh.computeWorldMatrix(true);\n this._updateToMesh();\n }\n /**\n * Detach the ray helper from the mesh it has previously been attached to.\n */\n detachFromMesh() {\n if (this._attachedToMesh && this._scene) {\n if (this._onAfterRenderObserver) {\n this._scene.onBeforeRenderObservable.remove(this._onAfterRenderObserver);\n this._scene.onAfterStepObservable.remove(this._onAfterStepObserver);\n }\n this._attachedToMesh = null;\n this._onAfterRenderObserver = null;\n this._onAfterStepObserver = null;\n this._scene = null;\n }\n }\n _updateToMesh() {\n const ray = this.ray;\n if (!this._attachedToMesh || !ray) {\n return;\n }\n if (this._attachedToMesh.isDisposed()) {\n this.detachFromMesh();\n return;\n }\n this._attachedToMesh.getDirectionToRef(this._meshSpaceDirection, ray.direction);\n Vector3.TransformCoordinatesToRef(this._meshSpaceOrigin, this._attachedToMesh.getWorldMatrix(), ray.origin);\n }\n /**\n * Dispose the helper and release its associated resources.\n */\n dispose() {\n this.hide();\n this.detachFromMesh();\n this.ray = null;\n 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