fbo_create_texture   xtlang


Defined in:  https://github.com/digego/extempore/tree/v0.8.9/libs/external/opengl.xtm

Implementation

;; creates an empty texture
;; suitable to back an FBO
(bind-func fbo_create_texture
  (lambda (width height)
    (let ((id:i32* (salloc))
    (tex:i32* (salloc)))
      (glGenRenderbuffers 1 id)
      (glBindRenderbuffer GL_RENDERBUFFER (pref id 0))
      (glRenderbufferStorage GL_RENDERBUFFER GL_RGBA8 width height)
      (glFramebufferRenderbuffer GL_FRAMEBUFFER GL_COLOR_ATTACHMENT0 GL_RENDERBUFFER (pref id 0))


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