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地面阴影看起来不准确和泥泞

shadow webgl 3d three.js javascript

Waltari · 技术社区 · 6 年前

我做了一个ThreeJS项目,在那里我动态地用Perlin噪声创建一个基础。代码如下:

createGround() {

const resolutionX = 100
const resolutionY = 100
const actualResolutionX = resolutionX + 1 // plane adds one vertex
const actualResolutionY = resolutionY + 1


const geometryPlane = new THREE.PlaneGeometry(this.sizeX, this.sizeY, resolutionX, resolutionY)

const noise = perlin.generatePerlinNoise(actualResolutionX, actualResolutionY)

let i = 0

for (let x = 0; x < actualResolutionX; x++) {
  for (let y = 0; y < actualResolutionY; y++) {
    let h = noise[i]
    }

    geometryPlane.vertices[i].z = h
    i++
  }
}

geometryPlane.verticesNeedUpdate = true
geometryPlane.computeFaceNormals()

const materialPlane = new THREE.MeshStandardMaterial({
  color: 0xffff00,
  side: THREE.FrontSide,
  roughness: 1,
  metallness: 0,
})

const ground = new THREE.Mesh(geometryPlane, materialPlane)
geometryPlane.computeVertexNormals()
ground.name = GROUND_NAME
ground.receiveShadow = true
scene.add(ground)

}

我对生成的几何图形很满意,但问题是阴影看起来确实不准确。

这是我的灯代码:

const light = new THREE.DirectionalLight(
  'white',
  1,

)
light.shadow.mapSize.width = 512 * 12 // default is 512. doesnt do anything
light.shadow.mapSize.height = 512 * 12 // default is 512
light.castShadow = true
light.position.set(100, 100, 100)
scene.add(light)

light.shadowCameraVisible = true

我的问题是,我如何使地面阴影看起来更准确和定义,并炫耀地面几何?

其他代码可以在这里找到: https://github.com/Waltari10/workwork