framebuffer-rect
GPU-accelerated rendering » Framebuffer objects

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Vocabulary
gpu.framebuffers

Class description
This tuple class references a rectangular subregion of a color attachment of a framebuffer object.

•	framebuffer references either a user-created framebuffer or the system-framebuffer.
•	attachment is a color-attachment-ref referencing the color attachment of interest in the framebuffer.
•	rect is a rect referencing the rectangular region of interest of the 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
<framebuffer-rect>, <full-framebuffer-rect>

Definition

USING: math.rectangles ;

IN: gpu.framebuffers

TUPLE: framebuffer-rect
    {
        framebuffer any-framebuffer read-only initial:
        system-framebuffer
    } {
        attachment color-attachment-ref read-only initial:
        default-attachment
    } { rect rect read-only initial: RECT: { 0 0 } { 0 0 } } ;