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  2. Blue field entoptic phenomenon - Wikipedia

    en.wikipedia.org/wiki/Blue_field_entoptic_phenomenon

    In a technique known as blue field entoptoscopy, the effect is used to estimate the blood flow in the retinal capillaries.The patient is alternatingly shown blue light and a computer generated picture of moving dots; by adjusting the speed and density of these dots, the patient tries to match the computer generated picture to the perceived entoptic dots.

  3. Sprite (computer graphics) - Wikipedia

    en.wikipedia.org/wiki/Sprite_(computer_graphics)

    To produce a two-dimensional shape, the sprite's single-row bitmap is altered by software from one scan line to the next. The 1979 Atari 400 and 800 home computers have similar, but more elaborate, circuitry capable of moving eight single-color objects per scan line: four 8-bit wide players and four 2-bit wide missiles. Each is the full height ...

  4. Computer graphics - Wikipedia

    en.wikipedia.org/wiki/Computer_graphics

    A Blender screenshot displaying the 3D test model Suzanne. Computer graphics deals with generating images and art with the aid of computers.Computer graphics is a core technology in digital photography, film, video games, digital art, cell phone and computer displays, and many specialized applications.

  5. Bit blit - Wikipedia

    en.wikipedia.org/wiki/Bit_blit

    In this example a background image, a sprite, and a 1-bit mask are used. As the mask is 1-bit, there is no possibility for partial transparency via alpha blending . A loop that examines each bit in the mask and copies the pixel from the sprite only if the mask is set will be much slower than hardware that can apply exactly the same operation to ...

  6. 2.5D - Wikipedia

    en.wikipedia.org/wiki/2.5D

    2.5D (basic pronunciation two-and-a-half dimensional) perspective refers to gameplay or movement in a video game or virtual reality environment that is restricted to a two-dimensional (2D) plane with little to no access to a third dimension in a space that otherwise appears to be three-dimensional and is often simulated and rendered in a 3D digital environment.

  7. Illusory motion - Wikipedia

    en.wikipedia.org/wiki/Illusory_motion

    Billboards and other electronic signs use apparent motion to simulate moving text by flashing lights on and off as if the text is moving.. The term illusory motion, or motion illusion or apparent motion, refers to any optical illusion in which a static image appears to be moving due to the cognitive effects of interacting color contrasts, object shapes, and position. [1]

  8. Pixel art - Wikipedia

    en.wikipedia.org/wiki/Pixel_art

    Pixel art [note 1] is a form of digital art drawn with graphical software where images are built using pixels as the only building block. [2] It is widely associated with the low-resolution graphics from 8-bit and 16-bit era computers, arcade machines and video game consoles, in addition to other limited systems such as LED displays and graphing calculators, which have a limited number of ...

  9. List of optical illusions - Wikipedia

    en.wikipedia.org/wiki/List_of_optical_illusions

    Movement that appears to occur when fixed pictures turn on and off. Bezold Effect: An apparent change of tone of a colour due to the alteration of the colour of the background. Blivet: Also known as "poiuyt" or "devil's fork", this illusion is an impossible image because in reality the shape cannot exist. Café wall illusion