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diff --git a/gfx/wr/wrench/reftests/transforms/non-inversible-world-rect.yaml b/gfx/wr/wrench/reftests/transforms/non-inversible-world-rect.yaml
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+++ b/gfx/wr/wrench/reftests/transforms/non-inversible-world-rect.yaml
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+# Tests that `get_raster_rects` raster -> world transform is inversible in general,
+# but one of the vertices of the world rectangles can't map back to the raster.
+---
+root:
+ items:
+ - type: stacking-context
+ bounds: 0 0 400 400
+ perspective: 800
+ perspective-origin: 50% 200
+ items:
+ - type: stacking-context
+ bounds: 0 0 400 400
+ transform-style: preserve-3d
+ transform: rotate-z(40) translate(400, 200, 0)
+ margin: 100
+ items:
+ - type: stacking-context
+ bounds: 0 0 1000 1000
+ transform: rotate-y(-75) translate(0, 0, -500)
+ items:
+ - type: rect
+ bounds: [0, 0, 200, 200]
+ color: red