Immediate mode (computer graphics)
Graphics libraries API design pattern / From Wikipedia, the free encyclopedia
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Not to be confused with direct mode, referring to the input of textual commands outside the context of a program.
Immediate mode is an API design pattern in computer graphics libraries, in which
- the client calls directly cause rendering of graphics objects to the display, or in which
- the data to describe rendering primitives is inserted frame by frame directly from the client into a command list (in the case of immediate mode primitive rendering),
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without the use of extensive indirection ā thus immediate ā to retained resources.[1] It does not preclude the use of double-buffering.
Retained mode is an alternative approach. Historically, retained mode has been the dominant style in GUI libraries;[2] however, both can coexist in the same library and are not necessarily exclusive in practice.