There were pseudo-textured floors that shifted from brick to dirt to waving grass.
6 seconds sound clip from the X Minus 1 - The Veldt by Ray Bradbury classic radio drama series.
You can hear this line at 00:02:50 in the radio play.
Quote context
[...]
- Go on, Mr. Abbott. Tell me about the home.
- It was completely automatic?
- There were crystalline walls that wavered from two to three dimensions.
- There were pseudo-textured floors that shifted from brick to dirt to waving grass.
- What about Peter and Wendy? They're your children.
- Oh, no, no. We have no children, doctor. We have no children!
- All right, Miss Carver. To continue.
[...]