message: take pixelRatio into account for camera-helper
diff: @@ -55,7 +55,7 @@ export class CameraHelper {
  private renderObject: GraphicsRenderObject | undefined
  - constructor(webgl: WebGLContext, props: Partial<CameraHelperProps> = {}) {
  + constructor(private webgl: WebGLContext, props: Partial<CameraHelperProps> = {}) {
  this.scene = Scene.create(webgl)
  this.camera = new Camera()
  @@ -71,14 +71,15 @@ export class CameraHelper {
  p.axes.name = props.axes.name
  if (props.axes.name === 'on') {
  this.scene.clear()
  + const params = { ...props.axes.params, scale: props.axes.params.scale * this.webgl.pixelRatio }
  this.renderObject = undefined
  - createAxesRenderObject(props.axes.params).then(renderObject => {
  + createAxesRenderObject(params).then(renderObject => {
  this.renderObject = renderObject
  this.scene.add(this.renderObject)
  this.scene.commit()
  })
  - Vec3.set(this.camera.position, 0, 0, props.axes.params.scale * 200)
  + Vec3.set(this.camera.position, 0, 0, params.scale * 200)
  Mat4.lookAt(this.camera.view, this.camera.position, this.camera.target, this.camera.up)
  p.axes.params = { ...props.axes.params }
  