New file |
| | |
| | | import { |
| | | BufferAttribute, |
| | | BufferGeometry, |
| | | Float32BufferAttribute, |
| | | InterleavedBuffer, |
| | | InterleavedBufferAttribute, |
| | | TriangleFanDrawMode, |
| | | TriangleStripDrawMode, |
| | | TrianglesDrawMode, |
| | | Vector3 |
| | | } from '../three.module.js'; |
| | | |
| | | |
| | | function computeTangents( geometry ) { |
| | | |
| | | geometry.computeTangents(); |
| | | console.warn( 'THREE.BufferGeometryUtils: .computeTangents() has been removed. Use BufferGeometry.computeTangents() instead.' ); |
| | | |
| | | } |
| | | |
| | | /** |
| | | * @param {Array<BufferGeometry>} geometries |
| | | * @param {Boolean} useGroups |
| | | * @return {BufferGeometry} |
| | | */ |
| | | function mergeBufferGeometries( geometries, useGroups = false ) { |
| | | |
| | | const isIndexed = geometries[ 0 ].index !== null; |
| | | |
| | | const attributesUsed = new Set( Object.keys( geometries[ 0 ].attributes ) ); |
| | | const morphAttributesUsed = new Set( Object.keys( geometries[ 0 ].morphAttributes ) ); |
| | | |
| | | const attributes = {}; |
| | | const morphAttributes = {}; |
| | | |
| | | const morphTargetsRelative = geometries[ 0 ].morphTargetsRelative; |
| | | |
| | | const mergedGeometry = new BufferGeometry(); |
| | | |
| | | let offset = 0; |
| | | |
| | | for ( let i = 0; i < geometries.length; ++ i ) { |
| | | |
| | | const geometry = geometries[ i ]; |
| | | let attributesCount = 0; |
| | | |
| | | // ensure that all geometries are indexed, or none |
| | | |
| | | if ( isIndexed !== ( geometry.index !== null ) ) { |
| | | |
| | | console.error( 'THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index ' + i + '. All geometries must have compatible attributes; make sure index attribute exists among all geometries, or in none of them.' ); |
| | | return null; |
| | | |
| | | } |
| | | |
| | | // gather attributes, exit early if they're different |
| | | |
| | | for ( const name in geometry.attributes ) { |
| | | |
| | | if ( ! attributesUsed.has( name ) ) { |
| | | |
| | | console.error( 'THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index ' + i + '. All geometries must have compatible attributes; make sure "' + name + '" attribute exists among all geometries, or in none of them.' ); |
| | | return null; |
| | | |
| | | } |
| | | |
| | | if ( attributes[ name ] === undefined ) attributes[ name ] = []; |
| | | |
| | | attributes[ name ].push( geometry.attributes[ name ] ); |
| | | |
| | | attributesCount ++; |
| | | |
| | | } |
| | | |
| | | // ensure geometries have the same number of attributes |
| | | |
| | | if ( attributesCount !== attributesUsed.size ) { |
| | | |
| | | console.error( 'THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index ' + i + '. Make sure all geometries have the same number of attributes.' ); |
| | | return null; |
| | | |
| | | } |
| | | |
| | | // gather morph attributes, exit early if they're different |
| | | |
| | | if ( morphTargetsRelative !== geometry.morphTargetsRelative ) { |
| | | |
| | | console.error( 'THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index ' + i + '. .morphTargetsRelative must be consistent throughout all geometries.' ); |
| | | return null; |
| | | |
| | | } |
| | | |
| | | for ( const name in geometry.morphAttributes ) { |
| | | |
| | | if ( ! morphAttributesUsed.has( name ) ) { |
| | | |
| | | console.error( 'THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index ' + i + '. .morphAttributes must be consistent throughout all geometries.' ); |
| | | return null; |
| | | |
| | | } |
| | | |
| | | if ( morphAttributes[ name ] === undefined ) morphAttributes[ name ] = []; |
| | | |
| | | morphAttributes[ name ].push( geometry.morphAttributes[ name ] ); |
| | | |
| | | } |
| | | |
| | | // gather .userData |
| | | |
| | | mergedGeometry.userData.mergedUserData = mergedGeometry.userData.mergedUserData || []; |
| | | mergedGeometry.userData.mergedUserData.push( geometry.userData ); |
| | | |
| | | if ( useGroups ) { |
| | | |
| | | let count; |
| | | |
| | | if ( isIndexed ) { |
| | | |
| | | count = geometry.index.count; |
| | | |
| | | } else if ( geometry.attributes.position !== undefined ) { |
| | | |
| | | count = geometry.attributes.position.count; |
| | | |
| | | } else { |
| | | |
| | | console.error( 'THREE.BufferGeometryUtils: .mergeBufferGeometries() failed with geometry at index ' + i + '. The geometry must have either an index or a position attribute' ); |
| | | return null; |
| | | |
| | | } |
| | | |
| | | mergedGeometry.addGroup( offset, count, i ); |
| | | |
| | | offset += count; |
| | | |
| | | } |
| | | |
| | | } |
| | | |
| | | // merge indices |
| | | |
| | | if ( isIndexed ) { |
| | | |
| | | let indexOffset = 0; |
| | | const mergedIndex = []; |
| | | |
| | | for ( let i = 0; i < geometries.length; ++ i ) { |
| | | |
| | | const index = geometries[ i ].index; |
| | | |
| | | for ( let j = 0; j < index.count; ++ j ) { |
| | | |
| | | mergedIndex.push( index.getX( j ) + indexOffset ); |
| | | |
| | | } |
| | | |
| | | indexOffset += geometries[ i ].attributes.position.count; |
| | | |
| | | } |
| | | |
| | | mergedGeometry.setIndex( mergedIndex ); |
| | | |
| | | } |
| | | |
| | | // merge attributes |
| | | |
| | | for ( const name in attributes ) { |
| | | |
| | | const mergedAttribute = mergeBufferAttributes( attributes[ name ] ); |
| | | |
| | | if ( ! mergedAttribute ) { |
| | | |
| | | console.error( 'THREE.BufferGeometryUtils: .mergeBufferGeometries() failed while trying to merge the ' + name + ' attribute.' ); |
| | | return null; |
| | | |
| | | } |
| | | |
| | | mergedGeometry.setAttribute( name, mergedAttribute ); |
| | | |
| | | } |
| | | |
| | | // merge morph attributes |
| | | |
| | | for ( const name in morphAttributes ) { |
| | | |
| | | const numMorphTargets = morphAttributes[ name ][ 0 ].length; |
| | | |
| | | if ( numMorphTargets === 0 ) break; |
| | | |
| | | mergedGeometry.morphAttributes = mergedGeometry.morphAttributes || {}; |
| | | mergedGeometry.morphAttributes[ name ] = []; |
| | | |
| | | for ( let i = 0; i < numMorphTargets; ++ i ) { |
| | | |
| | | const morphAttributesToMerge = []; |
| | | |
| | | for ( let j = 0; j < morphAttributes[ name ].length; ++ j ) { |
| | | |
| | | morphAttributesToMerge.push( morphAttributes[ name ][ j ][ i ] ); |
| | | |
| | | } |
| | | |
| | | const mergedMorphAttribute = mergeBufferAttributes( morphAttributesToMerge ); |
| | | |
| | | if ( ! mergedMorphAttribute ) { |
| | | |
| | | console.error( 'THREE.BufferGeometryUtils: .mergeBufferGeometries() failed while trying to merge the ' + name + ' morphAttribute.' ); |
| | | return null; |
| | | |
| | | } |
| | | |
| | | mergedGeometry.morphAttributes[ name ].push( mergedMorphAttribute ); |
| | | |
| | | } |
| | | |
| | | } |
| | | |
| | | return mergedGeometry; |
| | | |
| | | } |
| | | |
| | | /** |
| | | * @param {Array<BufferAttribute>} attributes |
| | | * @return {BufferAttribute} |
| | | */ |
| | | function mergeBufferAttributes( attributes ) { |
| | | |
| | | let TypedArray; |
| | | let itemSize; |
| | | let normalized; |
| | | let arrayLength = 0; |
| | | |
| | | for ( let i = 0; i < attributes.length; ++ i ) { |
| | | |
| | | const attribute = attributes[ i ]; |
| | | |
| | | if ( attribute.isInterleavedBufferAttribute ) { |
| | | |
| | | console.error( 'THREE.BufferGeometryUtils: .mergeBufferAttributes() failed. InterleavedBufferAttributes are not supported.' ); |
| | | return null; |
| | | |
| | | } |
| | | |
| | | if ( TypedArray === undefined ) TypedArray = attribute.array.constructor; |
| | | if ( TypedArray !== attribute.array.constructor ) { |
| | | |
| | | console.error( 'THREE.BufferGeometryUtils: .mergeBufferAttributes() failed. BufferAttribute.array must be of consistent array types across matching attributes.' ); |
| | | return null; |
| | | |
| | | } |
| | | |
| | | if ( itemSize === undefined ) itemSize = attribute.itemSize; |
| | | if ( itemSize !== attribute.itemSize ) { |
| | | |
| | | console.error( 'THREE.BufferGeometryUtils: .mergeBufferAttributes() failed. BufferAttribute.itemSize must be consistent across matching attributes.' ); |
| | | return null; |
| | | |
| | | } |
| | | |
| | | if ( normalized === undefined ) normalized = attribute.normalized; |
| | | if ( normalized !== attribute.normalized ) { |
| | | |
| | | console.error( 'THREE.BufferGeometryUtils: .mergeBufferAttributes() failed. BufferAttribute.normalized must be consistent across matching attributes.' ); |
| | | return null; |
| | | |
| | | } |
| | | |
| | | arrayLength += attribute.array.length; |
| | | |
| | | } |
| | | |
| | | const array = new TypedArray( arrayLength ); |
| | | let offset = 0; |
| | | |
| | | for ( let i = 0; i < attributes.length; ++ i ) { |
| | | |
| | | array.set( attributes[ i ].array, offset ); |
| | | |
| | | offset += attributes[ i ].array.length; |
| | | |
| | | } |
| | | |
| | | return new BufferAttribute( array, itemSize, normalized ); |
| | | |
| | | } |
| | | |
| | | /** |
| | | * @param {Array<BufferAttribute>} attributes |
| | | * @return {Array<InterleavedBufferAttribute>} |
| | | */ |
| | | function interleaveAttributes( attributes ) { |
| | | |
| | | // Interleaves the provided attributes into an InterleavedBuffer and returns |
| | | // a set of InterleavedBufferAttributes for each attribute |
| | | let TypedArray; |
| | | let arrayLength = 0; |
| | | let stride = 0; |
| | | |
| | | // calculate the the length and type of the interleavedBuffer |
| | | for ( let i = 0, l = attributes.length; i < l; ++ i ) { |
| | | |
| | | const attribute = attributes[ i ]; |
| | | |
| | | if ( TypedArray === undefined ) TypedArray = attribute.array.constructor; |
| | | if ( TypedArray !== attribute.array.constructor ) { |
| | | |
| | | console.error( 'AttributeBuffers of different types cannot be interleaved' ); |
| | | return null; |
| | | |
| | | } |
| | | |
| | | arrayLength += attribute.array.length; |
| | | stride += attribute.itemSize; |
| | | |
| | | } |
| | | |
| | | // Create the set of buffer attributes |
| | | const interleavedBuffer = new InterleavedBuffer( new TypedArray( arrayLength ), stride ); |
| | | let offset = 0; |
| | | const res = []; |
| | | const getters = [ 'getX', 'getY', 'getZ', 'getW' ]; |
| | | const setters = [ 'setX', 'setY', 'setZ', 'setW' ]; |
| | | |
| | | for ( let j = 0, l = attributes.length; j < l; j ++ ) { |
| | | |
| | | const attribute = attributes[ j ]; |
| | | const itemSize = attribute.itemSize; |
| | | const count = attribute.count; |
| | | const iba = new InterleavedBufferAttribute( interleavedBuffer, itemSize, offset, attribute.normalized ); |
| | | res.push( iba ); |
| | | |
| | | offset += itemSize; |
| | | |
| | | // Move the data for each attribute into the new interleavedBuffer |
| | | // at the appropriate offset |
| | | for ( let c = 0; c < count; c ++ ) { |
| | | |
| | | for ( let k = 0; k < itemSize; k ++ ) { |
| | | |
| | | iba[ setters[ k ] ]( c, attribute[ getters[ k ] ]( c ) ); |
| | | |
| | | } |
| | | |
| | | } |
| | | |
| | | } |
| | | |
| | | return res; |
| | | |
| | | } |
| | | |
| | | /** |
| | | * @param {Array<BufferGeometry>} geometry |
| | | * @return {number} |
| | | */ |
| | | function estimateBytesUsed( geometry ) { |
| | | |
| | | // Return the estimated memory used by this geometry in bytes |
| | | // Calculate using itemSize, count, and BYTES_PER_ELEMENT to account |
| | | // for InterleavedBufferAttributes. |
| | | let mem = 0; |
| | | for ( const name in geometry.attributes ) { |
| | | |
| | | const attr = geometry.getAttribute( name ); |
| | | mem += attr.count * attr.itemSize * attr.array.BYTES_PER_ELEMENT; |
| | | |
| | | } |
| | | |
| | | const indices = geometry.getIndex(); |
| | | mem += indices ? indices.count * indices.itemSize * indices.array.BYTES_PER_ELEMENT : 0; |
| | | return mem; |
| | | |
| | | } |
| | | |
| | | /** |
| | | * @param {BufferGeometry} geometry |
| | | * @param {number} tolerance |
| | | * @return {BufferGeometry>} |
| | | */ |
| | | function mergeVertices( geometry, tolerance = 1e-4 ) { |
| | | |
| | | tolerance = Math.max( tolerance, Number.EPSILON ); |
| | | |
| | | // Generate an index buffer if the geometry doesn't have one, or optimize it |
| | | // if it's already available. |
| | | const hashToIndex = {}; |
| | | const indices = geometry.getIndex(); |
| | | const positions = geometry.getAttribute( 'position' ); |
| | | const vertexCount = indices ? indices.count : positions.count; |
| | | |
| | | // next value for triangle indices |
| | | let nextIndex = 0; |
| | | |
| | | // attributes and new attribute arrays |
| | | const attributeNames = Object.keys( geometry.attributes ); |
| | | const attrArrays = {}; |
| | | const morphAttrsArrays = {}; |
| | | const newIndices = []; |
| | | const getters = [ 'getX', 'getY', 'getZ', 'getW' ]; |
| | | |
| | | // initialize the arrays |
| | | for ( let i = 0, l = attributeNames.length; i < l; i ++ ) { |
| | | |
| | | const name = attributeNames[ i ]; |
| | | |
| | | attrArrays[ name ] = []; |
| | | |
| | | const morphAttr = geometry.morphAttributes[ name ]; |
| | | if ( morphAttr ) { |
| | | |
| | | morphAttrsArrays[ name ] = new Array( morphAttr.length ).fill().map( () => [] ); |
| | | |
| | | } |
| | | |
| | | } |
| | | |
| | | // convert the error tolerance to an amount of decimal places to truncate to |
| | | const decimalShift = Math.log10( 1 / tolerance ); |
| | | const shiftMultiplier = Math.pow( 10, decimalShift ); |
| | | for ( let i = 0; i < vertexCount; i ++ ) { |
| | | |
| | | const index = indices ? indices.getX( i ) : i; |
| | | |
| | | // Generate a hash for the vertex attributes at the current index 'i' |
| | | let hash = ''; |
| | | for ( let j = 0, l = attributeNames.length; j < l; j ++ ) { |
| | | |
| | | const name = attributeNames[ j ]; |
| | | const attribute = geometry.getAttribute( name ); |
| | | const itemSize = attribute.itemSize; |
| | | |
| | | for ( let k = 0; k < itemSize; k ++ ) { |
| | | |
| | | // double tilde truncates the decimal value |
| | | hash += `${ ~ ~ ( attribute[ getters[ k ] ]( index ) * shiftMultiplier ) },`; |
| | | |
| | | } |
| | | |
| | | } |
| | | |
| | | // Add another reference to the vertex if it's already |
| | | // used by another index |
| | | if ( hash in hashToIndex ) { |
| | | |
| | | newIndices.push( hashToIndex[ hash ] ); |
| | | |
| | | } else { |
| | | |
| | | // copy data to the new index in the attribute arrays |
| | | for ( let j = 0, l = attributeNames.length; j < l; j ++ ) { |
| | | |
| | | const name = attributeNames[ j ]; |
| | | const attribute = geometry.getAttribute( name ); |
| | | const morphAttr = geometry.morphAttributes[ name ]; |
| | | const itemSize = attribute.itemSize; |
| | | const newarray = attrArrays[ name ]; |
| | | const newMorphArrays = morphAttrsArrays[ name ]; |
| | | |
| | | for ( let k = 0; k < itemSize; k ++ ) { |
| | | |
| | | const getterFunc = getters[ k ]; |
| | | newarray.push( attribute[ getterFunc ]( index ) ); |
| | | |
| | | if ( morphAttr ) { |
| | | |
| | | for ( let m = 0, ml = morphAttr.length; m < ml; m ++ ) { |
| | | |
| | | newMorphArrays[ m ].push( morphAttr[ m ][ getterFunc ]( index ) ); |
| | | |
| | | } |
| | | |
| | | } |
| | | |
| | | } |
| | | |
| | | } |
| | | |
| | | hashToIndex[ hash ] = nextIndex; |
| | | newIndices.push( nextIndex ); |
| | | nextIndex ++; |
| | | |
| | | } |
| | | |
| | | } |
| | | |
| | | // Generate typed arrays from new attribute arrays and update |
| | | // the attributeBuffers |
| | | const result = geometry.clone(); |
| | | for ( let i = 0, l = attributeNames.length; i < l; i ++ ) { |
| | | |
| | | const name = attributeNames[ i ]; |
| | | const oldAttribute = geometry.getAttribute( name ); |
| | | |
| | | const buffer = new oldAttribute.array.constructor( attrArrays[ name ] ); |
| | | const attribute = new BufferAttribute( buffer, oldAttribute.itemSize, oldAttribute.normalized ); |
| | | |
| | | result.setAttribute( name, attribute ); |
| | | |
| | | // Update the attribute arrays |
| | | if ( name in morphAttrsArrays ) { |
| | | |
| | | for ( let j = 0; j < morphAttrsArrays[ name ].length; j ++ ) { |
| | | |
| | | const oldMorphAttribute = geometry.morphAttributes[ name ][ j ]; |
| | | |
| | | const buffer = new oldMorphAttribute.array.constructor( morphAttrsArrays[ name ][ j ] ); |
| | | const morphAttribute = new BufferAttribute( buffer, oldMorphAttribute.itemSize, oldMorphAttribute.normalized ); |
| | | result.morphAttributes[ name ][ j ] = morphAttribute; |
| | | |
| | | } |
| | | |
| | | } |
| | | |
| | | } |
| | | |
| | | // indices |
| | | |
| | | result.setIndex( newIndices ); |
| | | |
| | | return result; |
| | | |
| | | } |
| | | |
| | | /** |
| | | * @param {BufferGeometry} geometry |
| | | * @param {number} drawMode |
| | | * @return {BufferGeometry>} |
| | | */ |
| | | function toTrianglesDrawMode( geometry, drawMode ) { |
| | | |
| | | if ( drawMode === TrianglesDrawMode ) { |
| | | |
| | | console.warn( 'THREE.BufferGeometryUtils.toTrianglesDrawMode(): Geometry already defined as triangles.' ); |
| | | return geometry; |
| | | |
| | | } |
| | | |
| | | if ( drawMode === TriangleFanDrawMode || drawMode === TriangleStripDrawMode ) { |
| | | |
| | | let index = geometry.getIndex(); |
| | | |
| | | // generate index if not present |
| | | |
| | | if ( index === null ) { |
| | | |
| | | const indices = []; |
| | | |
| | | const position = geometry.getAttribute( 'position' ); |
| | | |
| | | if ( position !== undefined ) { |
| | | |
| | | for ( let i = 0; i < position.count; i ++ ) { |
| | | |
| | | indices.push( i ); |
| | | |
| | | } |
| | | |
| | | geometry.setIndex( indices ); |
| | | index = geometry.getIndex(); |
| | | |
| | | } else { |
| | | |
| | | console.error( 'THREE.BufferGeometryUtils.toTrianglesDrawMode(): Undefined position attribute. Processing not possible.' ); |
| | | return geometry; |
| | | |
| | | } |
| | | |
| | | } |
| | | |
| | | // |
| | | |
| | | const numberOfTriangles = index.count - 2; |
| | | const newIndices = []; |
| | | |
| | | if ( drawMode === TriangleFanDrawMode ) { |
| | | |
| | | // gl.TRIANGLE_FAN |
| | | |
| | | for ( let i = 1; i <= numberOfTriangles; i ++ ) { |
| | | |
| | | newIndices.push( index.getX( 0 ) ); |
| | | newIndices.push( index.getX( i ) ); |
| | | newIndices.push( index.getX( i + 1 ) ); |
| | | |
| | | } |
| | | |
| | | } else { |
| | | |
| | | // gl.TRIANGLE_STRIP |
| | | |
| | | for ( let i = 0; i < numberOfTriangles; i ++ ) { |
| | | |
| | | if ( i % 2 === 0 ) { |
| | | |
| | | newIndices.push( index.getX( i ) ); |
| | | newIndices.push( index.getX( i + 1 ) ); |
| | | newIndices.push( index.getX( i + 2 ) ); |
| | | |
| | | } else { |
| | | |
| | | newIndices.push( index.getX( i + 2 ) ); |
| | | newIndices.push( index.getX( i + 1 ) ); |
| | | newIndices.push( index.getX( i ) ); |
| | | |
| | | } |
| | | |
| | | } |
| | | |
| | | } |
| | | |
| | | if ( ( newIndices.length / 3 ) !== numberOfTriangles ) { |
| | | |
| | | console.error( 'THREE.BufferGeometryUtils.toTrianglesDrawMode(): Unable to generate correct amount of triangles.' ); |
| | | |
| | | } |
| | | |
| | | // build final geometry |
| | | |
| | | const newGeometry = geometry.clone(); |
| | | newGeometry.setIndex( newIndices ); |
| | | newGeometry.clearGroups(); |
| | | |
| | | return newGeometry; |
| | | |
| | | } else { |
| | | |
| | | console.error( 'THREE.BufferGeometryUtils.toTrianglesDrawMode(): Unknown draw mode:', drawMode ); |
| | | return geometry; |
| | | |
| | | } |
| | | |
| | | } |
| | | |
| | | /** |
| | | * Calculates the morphed attributes of a morphed/skinned BufferGeometry. |
| | | * Helpful for Raytracing or Decals. |
| | | * @param {Mesh | Line | Points} object An instance of Mesh, Line or Points. |
| | | * @return {Object} An Object with original position/normal attributes and morphed ones. |
| | | */ |
| | | function computeMorphedAttributes( object ) { |
| | | |
| | | if ( object.geometry.isBufferGeometry !== true ) { |
| | | |
| | | console.error( 'THREE.BufferGeometryUtils: Geometry is not of type BufferGeometry.' ); |
| | | return null; |
| | | |
| | | } |
| | | |
| | | const _vA = new Vector3(); |
| | | const _vB = new Vector3(); |
| | | const _vC = new Vector3(); |
| | | |
| | | const _tempA = new Vector3(); |
| | | const _tempB = new Vector3(); |
| | | const _tempC = new Vector3(); |
| | | |
| | | const _morphA = new Vector3(); |
| | | const _morphB = new Vector3(); |
| | | const _morphC = new Vector3(); |
| | | |
| | | function _calculateMorphedAttributeData( |
| | | object, |
| | | material, |
| | | attribute, |
| | | morphAttribute, |
| | | morphTargetsRelative, |
| | | a, |
| | | b, |
| | | c, |
| | | modifiedAttributeArray |
| | | ) { |
| | | |
| | | _vA.fromBufferAttribute( attribute, a ); |
| | | _vB.fromBufferAttribute( attribute, b ); |
| | | _vC.fromBufferAttribute( attribute, c ); |
| | | |
| | | const morphInfluences = object.morphTargetInfluences; |
| | | |
| | | if ( material.morphTargets && morphAttribute && morphInfluences ) { |
| | | |
| | | _morphA.set( 0, 0, 0 ); |
| | | _morphB.set( 0, 0, 0 ); |
| | | _morphC.set( 0, 0, 0 ); |
| | | |
| | | for ( let i = 0, il = morphAttribute.length; i < il; i ++ ) { |
| | | |
| | | const influence = morphInfluences[ i ]; |
| | | const morph = morphAttribute[ i ]; |
| | | |
| | | if ( influence === 0 ) continue; |
| | | |
| | | _tempA.fromBufferAttribute( morph, a ); |
| | | _tempB.fromBufferAttribute( morph, b ); |
| | | _tempC.fromBufferAttribute( morph, c ); |
| | | |
| | | if ( morphTargetsRelative ) { |
| | | |
| | | _morphA.addScaledVector( _tempA, influence ); |
| | | _morphB.addScaledVector( _tempB, influence ); |
| | | _morphC.addScaledVector( _tempC, influence ); |
| | | |
| | | } else { |
| | | |
| | | _morphA.addScaledVector( _tempA.sub( _vA ), influence ); |
| | | _morphB.addScaledVector( _tempB.sub( _vB ), influence ); |
| | | _morphC.addScaledVector( _tempC.sub( _vC ), influence ); |
| | | |
| | | } |
| | | |
| | | } |
| | | |
| | | _vA.add( _morphA ); |
| | | _vB.add( _morphB ); |
| | | _vC.add( _morphC ); |
| | | |
| | | } |
| | | |
| | | if ( object.isSkinnedMesh ) { |
| | | |
| | | object.boneTransform( a, _vA ); |
| | | object.boneTransform( b, _vB ); |
| | | object.boneTransform( c, _vC ); |
| | | |
| | | } |
| | | |
| | | modifiedAttributeArray[ a * 3 + 0 ] = _vA.x; |
| | | modifiedAttributeArray[ a * 3 + 1 ] = _vA.y; |
| | | modifiedAttributeArray[ a * 3 + 2 ] = _vA.z; |
| | | modifiedAttributeArray[ b * 3 + 0 ] = _vB.x; |
| | | modifiedAttributeArray[ b * 3 + 1 ] = _vB.y; |
| | | modifiedAttributeArray[ b * 3 + 2 ] = _vB.z; |
| | | modifiedAttributeArray[ c * 3 + 0 ] = _vC.x; |
| | | modifiedAttributeArray[ c * 3 + 1 ] = _vC.y; |
| | | modifiedAttributeArray[ c * 3 + 2 ] = _vC.z; |
| | | |
| | | } |
| | | |
| | | const geometry = object.geometry; |
| | | const material = object.material; |
| | | |
| | | let a, b, c; |
| | | const index = geometry.index; |
| | | const positionAttribute = geometry.attributes.position; |
| | | const morphPosition = geometry.morphAttributes.position; |
| | | const morphTargetsRelative = geometry.morphTargetsRelative; |
| | | const normalAttribute = geometry.attributes.normal; |
| | | const morphNormal = geometry.morphAttributes.position; |
| | | |
| | | const groups = geometry.groups; |
| | | const drawRange = geometry.drawRange; |
| | | let i, j, il, jl; |
| | | let group, groupMaterial; |
| | | let start, end; |
| | | |
| | | const modifiedPosition = new Float32Array( positionAttribute.count * positionAttribute.itemSize ); |
| | | const modifiedNormal = new Float32Array( normalAttribute.count * normalAttribute.itemSize ); |
| | | |
| | | if ( index !== null ) { |
| | | |
| | | // indexed buffer geometry |
| | | |
| | | if ( Array.isArray( material ) ) { |
| | | |
| | | for ( i = 0, il = groups.length; i < il; i ++ ) { |
| | | |
| | | group = groups[ i ]; |
| | | groupMaterial = material[ group.materialIndex ]; |
| | | |
| | | start = Math.max( group.start, drawRange.start ); |
| | | end = Math.min( ( group.start + group.count ), ( drawRange.start + drawRange.count ) ); |
| | | |
| | | for ( j = start, jl = end; j < jl; j += 3 ) { |
| | | |
| | | a = index.getX( j ); |
| | | b = index.getX( j + 1 ); |
| | | c = index.getX( j + 2 ); |
| | | |
| | | _calculateMorphedAttributeData( |
| | | object, |
| | | groupMaterial, |
| | | positionAttribute, |
| | | morphPosition, |
| | | morphTargetsRelative, |
| | | a, b, c, |
| | | modifiedPosition |
| | | ); |
| | | |
| | | _calculateMorphedAttributeData( |
| | | object, |
| | | groupMaterial, |
| | | normalAttribute, |
| | | morphNormal, |
| | | morphTargetsRelative, |
| | | a, b, c, |
| | | modifiedNormal |
| | | ); |
| | | |
| | | } |
| | | |
| | | } |
| | | |
| | | } else { |
| | | |
| | | start = Math.max( 0, drawRange.start ); |
| | | end = Math.min( index.count, ( drawRange.start + drawRange.count ) ); |
| | | |
| | | for ( i = start, il = end; i < il; i += 3 ) { |
| | | |
| | | a = index.getX( i ); |
| | | b = index.getX( i + 1 ); |
| | | c = index.getX( i + 2 ); |
| | | |
| | | _calculateMorphedAttributeData( |
| | | object, |
| | | material, |
| | | positionAttribute, |
| | | morphPosition, |
| | | morphTargetsRelative, |
| | | a, b, c, |
| | | modifiedPosition |
| | | ); |
| | | |
| | | _calculateMorphedAttributeData( |
| | | object, |
| | | material, |
| | | normalAttribute, |
| | | morphNormal, |
| | | morphTargetsRelative, |
| | | a, b, c, |
| | | modifiedNormal |
| | | ); |
| | | |
| | | } |
| | | |
| | | } |
| | | |
| | | } else if ( positionAttribute !== undefined ) { |
| | | |
| | | // non-indexed buffer geometry |
| | | |
| | | if ( Array.isArray( material ) ) { |
| | | |
| | | for ( i = 0, il = groups.length; i < il; i ++ ) { |
| | | |
| | | group = groups[ i ]; |
| | | groupMaterial = material[ group.materialIndex ]; |
| | | |
| | | start = Math.max( group.start, drawRange.start ); |
| | | end = Math.min( ( group.start + group.count ), ( drawRange.start + drawRange.count ) ); |
| | | |
| | | for ( j = start, jl = end; j < jl; j += 3 ) { |
| | | |
| | | a = j; |
| | | b = j + 1; |
| | | c = j + 2; |
| | | |
| | | _calculateMorphedAttributeData( |
| | | object, |
| | | groupMaterial, |
| | | positionAttribute, |
| | | morphPosition, |
| | | morphTargetsRelative, |
| | | a, b, c, |
| | | modifiedPosition |
| | | ); |
| | | |
| | | _calculateMorphedAttributeData( |
| | | object, |
| | | groupMaterial, |
| | | normalAttribute, |
| | | morphNormal, |
| | | morphTargetsRelative, |
| | | a, b, c, |
| | | modifiedNormal |
| | | ); |
| | | |
| | | } |
| | | |
| | | } |
| | | |
| | | } else { |
| | | |
| | | start = Math.max( 0, drawRange.start ); |
| | | end = Math.min( positionAttribute.count, ( drawRange.start + drawRange.count ) ); |
| | | |
| | | for ( i = start, il = end; i < il; i += 3 ) { |
| | | |
| | | a = i; |
| | | b = i + 1; |
| | | c = i + 2; |
| | | |
| | | _calculateMorphedAttributeData( |
| | | object, |
| | | material, |
| | | positionAttribute, |
| | | morphPosition, |
| | | morphTargetsRelative, |
| | | a, b, c, |
| | | modifiedPosition |
| | | ); |
| | | |
| | | _calculateMorphedAttributeData( |
| | | object, |
| | | material, |
| | | normalAttribute, |
| | | morphNormal, |
| | | morphTargetsRelative, |
| | | a, b, c, |
| | | modifiedNormal |
| | | ); |
| | | |
| | | } |
| | | |
| | | } |
| | | |
| | | } |
| | | |
| | | const morphedPositionAttribute = new Float32BufferAttribute( modifiedPosition, 3 ); |
| | | const morphedNormalAttribute = new Float32BufferAttribute( modifiedNormal, 3 ); |
| | | |
| | | return { |
| | | |
| | | positionAttribute: positionAttribute, |
| | | normalAttribute: normalAttribute, |
| | | morphedPositionAttribute: morphedPositionAttribute, |
| | | morphedNormalAttribute: morphedNormalAttribute |
| | | |
| | | }; |
| | | |
| | | } |
| | | |
| | | |
| | | |
| | | export { |
| | | computeTangents, |
| | | mergeBufferGeometries, |
| | | mergeBufferAttributes, |
| | | interleaveAttributes, |
| | | estimateBytesUsed, |
| | | mergeVertices, |
| | | toTrianglesDrawMode, |
| | | computeMorphedAttributes, |
| | | }; |