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Ambiguous objects

Ambiguous objects are visual information that makes people feel different from different directions and angles. Even though they are the same objects, they will still allow the observer to draw different conclusions. Ambiguous objects often have two different characteristics to induce observers to draw two different conclusions. So in simple terms, different angles look different. So when applied to three-dimensional graphics, we can create a certain object, making it look different from diagonally forward and diagonally behind. This is the theme of this time.
Oh roar, the picture shows two different angles through the mirror. It looks directly that the top of the object is a rhombus. However, through the refraction of the mirror, we can know that its shape looks round, but in fact, from From other angles, it should be neither a circle nor a diamond, so let's try to make a similar object so that it can see different shapes from different angles.

Then I try to make a very simple burger. Then a burger will include an outer outline (the shape of the entire burger). From another angle, I want to see the mixed food in the burger, such as lettuce leaves and cheese. So in this case, we first make out the shape of the appearance we hope to get:
The equations of "bread" are (1-x^10)^5 and -(1-x^10)^5, which are the upper and lower half of "bread," respectively. "Lettuce" is a cos function, obtained by changing the value, the equation is 0.2*cos(900*x)+0.2, and the equation of "cheese" is (0.2-0.2^(x^10))^7. The overall look is good, so our goal is to make an object to see the outline of the burger from one direction and lettuce and cheese in the other direction. After the graphics are generated, we can get this shape:
It looked a little strange, it looked like a paw, and the outline of the hamburger was not visible. But this is normal because only through a specific angle can we really see the pattern we want, then by displaying the previous function pattern and the formed object at the same time, we can easily find the pattern we want.
This is what I want. It looks great, and its appearance is somewhat confusing, but from a specific angle, it can show people its special features.

Why I chose this: Just like the first picture, I want to make a crease and turn it into a straight line (or a curve that looks flat). This looks cool, so lettuce is transformed into bread Thoughts, and if there are too many creases on the other line, the overall look is not very coordinated. At this time, I suddenly thought of Hamburg, so I made a model like this.

Size:x: 62.71 y: 42 z: 47.26

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