Is it possible to restructured an upright object from its shadow only,

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It is not possible to fully reconstruct an upright object solely from its shadow due to hidden vertices that do not appear in the shadow. Shadows of different shapes, such as a disk and a sphere, can appear similar, making it difficult to distinguish between them. The angle of the light source significantly affects the shadow's shape and detail. Transparent objects, like a glass cube, may allow some edges to be seen in their shadow, but this does not provide complete information about the object's structure. Overall, while shadows can provide some clues, they are insufficient for accurate reconstruction.
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is it possible to restructured an upright object from its shadow only, for example an cube or any model?
 
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Can you tell the difference between the shadow of a disk and that of a sphere?
 


No.
If the light source is not on top of the model, the shadow will be different.
But i understand any vertices that is hidden between the object and the shadow will not be revealed.
 


if the object is an transparent like an glass cube where we can see its edges on its shadow?
and again if the light source is not from top and from different angle.
 

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