allocate-renderbuffer ( renderbuffer: renderbuffer dim -- )
GPU-accelerated rendering » Framebuffer objects

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Vocabulary
gpu.framebuffers

Inputs

renderbuffer	a renderbuffer
dim	a sequence

Outputs
None

Word description
Allocates image memory for renderbuffer with dimension dim.

Notes
Renderbuffer objects require OpenGL 3.0 or one of the GL_ARB_framebuffer_object or GL_EXT_framebuffer_object extensions.

See also
renderbuffer, renderbuffer-dim, <renderbuffer>

Definition

USING: accessors gpu.textures.private kernel math opengl.gl
sequences typed ;

IN: gpu.framebuffers

TYPED:: allocate-renderbuffer
    ( renderbuffer: renderbuffer dim -- )
    GL_RENDERBUFFER renderbuffer handle>> glBindRenderbuffer
    GL_RENDERBUFFER renderbuffer samples>> dup zero? [
        drop
        renderbuffer texture-gl-internal-format dim first2
        glRenderbufferStorage
    ] [
        renderbuffer texture-gl-internal-format dim first2
        glRenderbufferStorageMultisample
    ] if ;