What you describe is a painting by René Magritte.
What’s the answer
Optical illusions were first used by the Greeks. They built their temples so that the roof was slanted. This gave the illusion that the temple was actually standing straight. They also made the columns bulge so that from a distance they would look perfectly proportioned. In the course of history, people have encountered illusions in many ways. Many of these illusions appear in very common, everyday experiences.
Anything which is part of the normal landscape or sky (trees, hills, birds,clouds, planes) usually looks smaller when they're near the horizon. The reason for this is simple: stuff near the horizon is generally more distant. Just take trees in the landscape, or a road disappearing in the distance as an example. Because of this our brain knows and expects that objects at or near the horizon appear particularly small compared to their true life size.
Optical perspective refers to the technique used in art and visual representation to create the illusion of depth and three-dimensionality on a two-dimensional surface. By manipulating elements such as size, overlap, and color gradients, artists can simulate how objects appear smaller and less detailed as they recede into the distance. This approach is grounded in the principles of linear perspective, which employs vanishing points and horizon lines to guide the viewer's eye. Ultimately, optical perspective enhances the realism and spatial dynamics of an artwork.
Even though it's pronounced tromploy, the phrase is actually spelled trompe-l'œil, or trompe l'oeil. It is a French phrase meaning 'deceive the eye'. It is an art technique that employs perspective, shadow, and extremely realistic imagery in order to create an optical illusion. It can be used to make a room appear larger than it is, or create the illusion that there is an object lying on a table when in fact the object is merely painted, or that something is a three-dimensional sculpture when it's really just a two-dimensional painting. There are some great trompe-l'oeil murals painted on the plain flat sides of building that make you think you are looking at an arched wall with gardens beyond, for example. There is an artist active now who creates trompe-l'oeil paintings of canyons on sidewalks that are so realistic people are afraid of falling in. This is a great topic to search on google images - you'll have fun.
An optical illusion.
No, sunrise is not an optical illusion. It is the result of the Earth rotating on its axis, causing the sun to appear above the horizon as the Earth's location moves into the path of sunlight.
A mirage on the water creates an optical illusion known as a Fata Morgana, where distant objects appear distorted and elevated due to the bending of light rays.
They don't, they just appear to...an optical illusion.
The café wall illusion is a geometrical-optical illusion in which the parallel straight dividing lines between staggered rows with alternating black and white "bricks" appear to be sloped.
A mirage is formed when light rays are bent or refracted due to temperature differences in the air. This bending of light creates an optical illusion where distant objects appear distorted or displaced.
The moon appears larger at times due to an optical illusion called the "moon illusion." This occurs when the moon is closer to the horizon, making it appear larger compared to when it is higher in the sky.
The moon can appear bigger sometimes due to an optical illusion called the "moon illusion." This occurs when the moon is closer to the horizon, making it appear larger compared to when it is higher in the sky.
What’s the answer
I would not call it an optical illusion. To me it is a trick of logic, which takes a few seconds to work out: The horse and rider are partly covered by a tree (logical). They also appear covered by a void (illogical).
The moon can appear bigger in the sky due to an optical illusion called the "moon illusion." This occurs when the moon is closer to the horizon, making it appear larger compared to when it is higher in the sky.
The moon appears large on some nights due to an optical illusion called the "moon illusion." This occurs when the moon is closer to the horizon, making it appear larger compared to when it is higher in the sky.