Based On Oscar Reutersvärd | Based On Roger Penrose | Copies Of Oscar Reutersvärd | Copy Of Bruno Ernst | Copies Of Other Artists | Copies Of Other Illusions | Strange Geometry

Based On Oscar Reutersvärd

Tri-Bar 1b
A wooden ornament of cubes.
768×768 : 113k
Tri-Bar 1c
A stone ornament of truncated cubes.
768×768 : 123k
Tri-Bar 1d
Framework cubes.
768×768 : 68k
Tri-Bar 1e
Girders.
768×768 : 49k
Tri-Bar 2
768×768 : 82k
Tri-Bar 2b
768×768 : 53k
Tri-Bar 2c
768×768 : 59k

Based On Roger Penrose

Penrose Staircase
Impossible Staircase
768×768 : 126k

Just a few versions…

Penrose Staircase
Staircase 3443
768×768 : 103k
Penrose Staircase
Staircase 3553
768×768 : 115k
Penrose Staircase
Staircase 3663
768×768 : 126k
Penrose Staircase
Staircase 3773
768×768 : 132k
       
Penrose Staircase
Staircase 4554
768×768 : 98k
Penrose Staircase
Staircase 4664
768×768 : 125k
Penrose Staircase
Staircase 4774
768×768 : 130k
Penrose Staircase
Staircase 4884
768×768 : 133k

Copies Of Oscar Reutersvärd

Tri-bars

Opus 2B
"Opus 2B"
768×768 : 24k
Opus 1 No 293 aa
"Opus 1 No 293 aa"
768×768 : 37k
Tribar Joins
768×768 : 63k
Follow The Groove
"Follow The Groove"
768×768 : 57k
       
Extended Tribar
"Extended Tribar"
768×768 : 40k
Impossible Triangle With A Twist
"Impossible Triangle With A Twist"
768×768 : 59k
G112
1024×768 : 49k

Four-bars

No 274
"No 274"
768×768 : 36k
No 365 baf
"No 365 baf"
768×768 : 39k
No 384 ag
"No 384 ag"
768×768 : 32k
OSK
1024×576 : 23k

Windows

Impossible Window 1
768×768 : 74k
Impossible Window 2
768×768 : 78k
Impossible Window 3
768×768 : 76k
     
Impossible Window 4
768×768 : 76k
Impossible Window 5
768×768 : 76k
Impossible Window 6
768×768 : 77k

Shelving

Shelf 4-3
1024×576 : 21k
Shelf 1-2
1024×576 : 24k

Copy Of Bruno Ernst

Impossible Penetration
"Impossible Penetration"
Coloured copy of a line sketch from The Eye Beguiled & Adventures With Impossible Figures.
768×768 : 92k


Copies Of Other Artists

Cube In Blue
"Cube In Blue" by Monika Buch
From The Eye Beguiled by Bruno Ernst.
768×768 : 48k
Cube
From Martin Gardner's 'Dr. Matrix' articles for Scientific American, 1976 (unknown artist).
768×768 : 51k
   
Wooden Puzzle
"A Slightly Difficult Interlocking Wood Puzzle" by Mitsumasa Anno
From The Eye Beguiled by Bruno Ernst.
768×768 : 77k
Wooden Puzzle 2
My variation of the previous Wood Puzzle
with the third end changed as well.
768×768 : 76k

Copies Of Other Illusions

Space Filling

TOI053A
768×768 : 113k
ISP017A
768×768 : 57k
TOI016A
768×768 : 128k
TOI056E
768×768 : 109k
TOI049A
768×768 : 63k

Other Objects

ISP046D
The intersection of two slim four-bars creates the partial outline of a cube.
768×768 : 29k
ISP045D
Another shape based on cubic meandering that seems possible but isn't.
768×768 : 38k
ISP047D
So how many right-angles do you need?
768×768 : 16k
ISP047D2
How about some cross-bars to make a window-frame?
768×768 : 22k

The following three images show an impossible inside corner of a cube morphing to an impossible outside corner of a cube, via a truncated tri-bar, though notice it's only the width of the 'walls' that change: the hole remains the same size.
The final animated gif is a very quick preview of the animation which can be viewed by clicking on the image.

TOI011a1 TOI011a2 TOI011a3 TOI011a gif animation
(128×128×50 frames : 44k)

Strange Geometry

These shapes are all possible : only the perspective makes them seem odd.

ISP044F
768×768 : 25k
ISP047B
768×768 : 25k
ISP047C
768×768 : 53k
ISP004H
768×768 : 31k
ISP006A
768×768 : 80k

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