# Regression test for bug 1817905:
# perspective ancestor + intermediate flat translate-Z + preserve-3d on a
# rotated leaf used to produce window-size-dependent distortion because the
# plane splitter ran in world (post-perspective) space and dropped polygon
# corners whose homogeneous w landed at or behind the near plane.
# preserve-3d on a leaf with no 3D children is semantically equivalent to
# flat, so this should render identically to the ref (which omits preserve-3d
# on the leaf).
---
root:
  items:
    - type: stacking-context
      bounds: 0 0 800 600
      perspective: 100
      items:
        - type: stacking-context
          bounds: 0 0 800 600
          transform: translate(200, 200, 0)
          items:
            - type: stacking-context
              bounds: 0 0 360 240
              transform: rotate-y(45)
              transform-style: preserve-3d
              items:
                - type: rect
                  bounds: 0 0 360 240
                  color: black