read-framebuffer ( framebuffer-rect -- byte-array )
GPU-accelerated rendering » Framebuffer objects

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Vocabulary
gpu.framebuffers

Inputs

framebuffer-rect

a framebuffer-rect

Outputs

byte-array

a byte-array

Word description
Reads the rectangular region framebuffer-rect into a new byte-array. The format of the byte array is determined by the component-order and component-type of the associated framebuffer-attachment.

Notes
User-created framebuffer objects require OpenGL 3.0 or one of the GL_ARB_framebuffer_object or GL_EXT_framebuffer_object extensions.

See also
read-framebuffer-image, read-framebuffer-to

Definition

USING: byte-arrays gpu.framebuffers.private kernel ;

IN: gpu.framebuffers

: read-framebuffer ( framebuffer-rect -- byte-array )
    dup framebuffer-rect-size <byte-array>
    [ read-framebuffer-to ] keep ; inline