类 Utils3D

En

Utils3D is a class used to create 3D tools.

Zh

Utils3D 类用于创建3D工具。

构造函数

constructor

方法

_getParentNodeByHierarchyPath billboardTrans createAffineTransformationArray getURLVerion mulMatrixByArray mulMatrixByArrayAndMatrixFast mulMatrixByArrayFast PointinTriangle quaternionWeight transformQuat transformVector3ArrayByQuat transformVector3ArrayToVector3ArrayCoordinate transformVector3ArrayToVector3ArrayNormal uint8ArrayToArrayBuffer uint8ArrayToArrayBufferAsync

构造函数

constructor

方法

静态_getParentNodeByHierarchyPath

静态billboardTrans

静态createAffineTransformationArray

  • createAffineTransformationArray(tX, tY, tZ, rX, rY, rZ, rW, sX, sY, sZ, outArray, outOffset): void

  • 参数

    • tX: number

      X axis translation.

    • tY: number

      Y axis translation.

    • tZ: number

      Z axis translation.

    • rX: number

      X axis rotation.

    • rY: number

      Y axis rotation.

    • rZ: number

      Z axis rotation.

    • rW: number

      W component of the rotation quaternion.

    • sX: number

      X axis scale.

    • sY: number

      Y axis scale.

    • sZ: number

      Z axis scale.

    • outArray: Float32Array

      Output matrix array.

    • outOffset: number

      Output matrix array offset.

    返回 void

    En

    Calculates the result matrix array by the given translation, rotation, and scale values.

    Zh

    通过数平移、旋转、缩放值计算到结果矩阵数组。

静态getURLVerion

  • getURLVerion(url): string

  • 参数

    • url: string

      The URL to extract the version from.

    返回 string

    The version string or null if not found.

    En

    Retrieves the version string from a URL.

    Zh

    从URL中获取版本字符串。

静态mulMatrixByArray

  • mulMatrixByArray(leftArray, leftOffset, rightArray, rightOffset, outArray, outOffset): void

  • 参数

    • leftArray: Float32Array

      The left-hand side matrix array.

    • leftOffset: number

      The offset in the left-hand side array.

    • rightArray: Float32Array

      The right-hand side matrix array.

    • rightOffset: number

      The offset in the right-hand side array.

    • outArray: Float32Array

      The output matrix array where the result will be stored.

    • outOffset: number

      The offset in the output array.

    返回 void

    En

    Multiplies two matrices using array data.

    Zh

    通过数组数据计算矩阵乘法。

静态mulMatrixByArrayAndMatrixFast

  • mulMatrixByArrayAndMatrixFast(leftArray, leftOffset, rightMatrix, outArray, outOffset): void

  • 参数

    • leftArray: Float32Array

      The left-hand side matrix array.

    • leftOffset: number

      The offset in the left-hand side array.

    • rightMatrix: Matrix4x4

      The right-hand side matrix.

    • outArray: Float32Array

      The output matrix array where the result will be stored.

    • outOffset: number

      The offset in the output array.

    返回 void

    En

    Multiplies a matrix by an array and another matrix, with the restriction that rightArray and outArray cannot be the same array reference.

    Zh

    通过数组数据和一个矩阵计算矩阵乘法，注意 rightArray 和 outArray 不能是同一个数组引用。

静态mulMatrixByArrayFast

  • mulMatrixByArrayFast(leftArray, leftOffset, rightArray, rightOffset, outArray, outOffset): void

  • 参数

    • leftArray: Float32Array

      The left-hand side matrix array.

    • leftOffset: number

      The offset in the left-hand side array.

    • rightArray: Float32Array

      The right-hand side matrix array.

    • rightOffset: number

      The offset in the right-hand side array.

    • outArray: Float32Array

      The output matrix array where the result will be stored.

    • outOffset: number

      The offset in the output array.

    返回 void

    En

    Multiplies two matrices using array data, with the restriction that rightArray and outArray cannot be the same array reference.

    Zh

    通过数组数据计算矩阵乘法，注意 rightArray 和 outArray 不能是同一个数组引用。

静态PointinTriangle

静态quaternionWeight

静态transformQuat

  • transformQuat(source, rotation, out): void

  • 参数

    • source: Vector3

      The original 3D vector.

    • rotation: Float32Array

      The quaternion array representing the rotation.

    • out: Vector3

      The resulting rotated vector.

    返回 void

    En

    Applies a rotation to a 3D vector using a quaternion.

    Zh

    使用四元数对三维向量应用旋转。

静态transformVector3ArrayByQuat

  • transformVector3ArrayByQuat(sourceArray, sourceOffset, rotation, outArray, outOffset): void

  • 参数

    • sourceArray: Float32Array

      The source vector components in a Float32Array.

    • sourceOffset: number

      The offset in the source array where the source vector starts.

    • rotation: Quaternion

      The quaternion representing the rotation.

    • outArray: Float32Array

      The array to store the result of the rotation.

    • outOffset: number

      The offset in the output array where the result will be stored.

    返回 void

    En

    Rotates a 3D vector using a quaternion.

    Zh

    使用四元数旋转三维向量。

静态transformVector3ArrayToVector3ArrayCoordinate

  • transformVector3ArrayToVector3ArrayCoordinate(source, sourceOffset, transform, result, resultOffset): void

  • 参数

    • source: Float32Array

      The source vector array.

    • sourceOffset: number

      The offset in the source array.

    • transform: Matrix4x4

      The transformation matrix.

    • result: Float32Array

      The resulting vector array.

    • resultOffset: number

      The offset in the resulting array.

    返回 void

    En

    Transforms a 3D vector from one array to another using a transformation matrix.

    Zh

    使用变换矩阵将一个三维向量从一个数组转换到另一个数组。

静态transformVector3ArrayToVector3ArrayNormal

  • transformVector3ArrayToVector3ArrayNormal(source, sourceOffset, transform, result, resultOffset): void

  • 参数

    • source: Float32Array

      The source normal vector array.

    • sourceOffset: number

      The offset in the source array.

    • transform: Matrix4x4

      The transformation matrix.

    • result: Float32Array

      The resulting normal vector array.

    • resultOffset: number

      The offset in the resulting array.

    返回 void

    En

    Transforms a 3D vector array from one array to another using a transformation matrix, and normalizes the resulting vector array.

    Zh

    通过矩阵转换一个三维向量数组到另外一个归一化的三维向量数组。

静态uint8ArrayToArrayBuffer

静态uint8ArrayToArrayBufferAsync

  • uint8ArrayToArrayBufferAsync(rendertexture): Promise<String>

  • 参数

    返回 Promise<String>

    A promise that resolves to a Base64 string representing the RenderTexture.

    En

    Converts a RenderTexture to a Base64 encoded string.

    Zh

    将 RenderTexture 转换为 Base64 编码的字符串。

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