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TypeScript BufferGeometry.computeVertexNormals方法代码示例

本文整理汇总了TypeScript中THREE.BufferGeometry.computeVertexNormals方法的典型用法代码示例。如果您正苦于以下问题:TypeScript BufferGeometry.computeVertexNormals方法的具体用法?TypeScript BufferGeometry.computeVertexNormals怎么用?TypeScript BufferGeometry.computeVertexNormals使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在THREE.BufferGeometry的用法示例。


在下文中一共展示了BufferGeometry.computeVertexNormals方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的TypeScript代码示例。

示例1: function


//.........这里部分代码省略.........
          throw new Error("Unexpected vertex/normal/uv line: '" + line + "'")
        }
      } else if (lineFirstChar === 'f') {
        if ((result = this.regexp.face_vertex_uv_normal.exec(line)) !== null) {
          // f vertex/uv/normal vertex/uv/normal vertex/uv/normal
          // 0                        1    2    3    4    5    6    7    8    9   10         11         12
          // ["f 1/1/1 2/2/2 3/3/3", "1", "1", "1", "2", "2", "2", "3", "3", "3", undefined, undefined, undefined]

          state.addFace(
            result[ 1 ], result[ 4 ], result[ 7 ], result[ 10 ],
            // result[ 2 ], result[ 5 ], result[ 8 ], result[ 11 ],  // ignore uv part
            result[ 3 ], result[ 6 ], result[ 9 ], result[ 12 ]
          )
        } else if (this.regexp.face_vertex_uv.exec(line) !== null) {

          // ignore uv line

        } else if ((result = this.regexp.face_vertex_normal.exec(line)) !== null) {
          // f vertex//normal vertex//normal vertex//normal
          // 0                     1    2    3    4    5    6   7          8
          // ["f 1//1 2//2 3//3", "1", "1", "2", "2", "3", "3", undefined, undefined]

          state.addFace(
            result[ 1 ], result[ 3 ], result[ 5 ], result[ 7 ],
            result[ 2 ], result[ 4 ], result[ 6 ], result[ 8 ]
          )
        } else if ((result = this.regexp.face_vertex.exec(line)) !== null) {
          // f vertex vertex vertex
          // 0            1    2    3   4
          // ["f 1 2 3", "1", "2", "3", undefined]

          state.addFace(
            result[ 1 ], result[ 2 ], result[ 3 ], result[ 4 ]
          )
        } else {
          throw new Error("Unexpected face line: '" + line + "'")
        }
      } else if (lineFirstChar === 'l') {
        var lineParts = line.substring(1).trim().split(' ')
        var lineVertices = []
        var lineUVs = []

        if (line.indexOf('/') === -1) {
          lineVertices = lineParts
        } else {
          for (var li = 0, llen = lineParts.length; li < llen; li++) {
            var parts = lineParts[ li ].split('/')

            if (parts[ 0 ] !== '') lineVertices.push(parts[ 0 ])
            if (parts[ 1 ] !== '') lineUVs.push(parts[ 1 ])
          }
        }
        state.addLineGeometry(lineVertices, lineUVs)
      } else if ((result = this.regexp.object_pattern.exec(line)) !== null) {
        // o object_name
        // or
        // g group_name

        var name = result[ 0 ].substr(1).trim()
        state.startObject(name)

        // ignore material related lines
        // eslint-disable-next-line no-empty
      } else if (this.regexp.material_use_pattern.test(line)) {
        // eslint-disable-next-line no-empty
      } else if (this.regexp.material_library_pattern.test(line)) {
        // eslint-disable-next-line no-empty
      } else if (this.regexp.smoothing_pattern.exec(line) !== null) {
      } else {
        // Handle null terminated files without exception
        if (line === '\0') continue

        throw new Error("Unexpected line: '" + line + "'")
      }
    }

    var container = []

    for (i = 0, l = state.objects.length; i < l; i++) {
      var object = state.objects[ i ]
      var geometry = object.geometry

      // Skip o/g line declarations that did not follow with any faces
      if (geometry.vertices.length === 0) continue

      var buffergeometry = new BufferGeometry()

      buffergeometry.addAttribute('position', new BufferAttribute(new Float32Array(geometry.vertices), 3))

      if (geometry.normals.length > 0) {
        buffergeometry.addAttribute('normal', new BufferAttribute(new Float32Array(geometry.normals), 3))
      } else {
        buffergeometry.computeVertexNormals()
      }

      container.push(buffergeometry)
    }

    return container
  }
开发者ID:arose,项目名称:ngl,代码行数:101,代码来源:obj-parser.ts


注:本文中的THREE.BufferGeometry.computeVertexNormals方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。