      grass.colorSpace = THREE.SRGBColorSpace
          const grassGround = grass.clone()
          grassGround.needsUpdate = true
          grassGround.wrapS = grassGround.wrapT = 1000 // RepeatWrapping
          grassGround.offset.set(0, 0)
          grassGround.repeat.set(10, 10)

          this.physics.add.ground({ y: -1, width: 120, height: 120 }, { lambert: { map: grassGround } })

          const ramp = this.add.box({ width: 8, height: 10, z: 20 })
          ramp.rotateX(Math.PI / 3)
          this.p