Parameters

Description

glRenderbufferStorage is equivalent to calling glRenderbufferStorageMultisample with the samples set to zero.

The target of the operation, specified by target must be GL_RENDERBUFFER. internalformat specifies the internal format to be used for the renderbuffer object's storage and must be a color-renderable, depth-renderable, or stencil-renderable format. width and height are the dimensions, in pixels, of the renderbuffer. Both width and height must be less than or equal to the value of GL_MAX_RENDERBUFFER_SIZE.

Upon success, glRenderbufferStorage deletes any existing data store for the renderbuffer image and the contents of the data store after calling glRenderbufferStorage are undefined.

Errors

GL_INVALID_ENUM is generated if target is not GL_RENDERBUFFER.

GL_INVALID_VALUE is generated if either of width or height is negative, or greater than the value of GL_MAX_RENDERBUFFER_SIZE.

GL_INVALID_ENUM is generated if internalformat is not a color-renderable, depth-renderable, or stencil-renderable format.

GL_OUT_OF_MEMORY is generated if the GL is unable to create a data store of the requested size.

Examples

// fbo_width and fbo_height are the desired width and height of the FBO.
// For Opengl <= 4.4 or if the GL_ARB_texture_non_power_of_two extension
// is present, fbo_width and fbo_height can be values other than 2^n for
// some integer n.

// Build the texture that will serve as the color attachment for the framebuffer.
GLuint color_renderbuffer;
glGenRenderbuffers(1, &color_renderbuffer);
glBindRenderbuffer( GL_RENDERBUFFER, (GLuint)color_renderbuffer );
glRenderbufferStorage( GL_RENDERBUFFER, GL_RGBA8, fbo_width, fbo_height );
glBindRenderbuffer( GL_RENDERBUFFER, 0 );

// Build the texture that will serve as the depth attachment for the framebuffer.
GLuint depth_renderbuffer;
glGenRenderbuffers(1, &depth_renderbuffer);
glBindRenderbuffer( GL_RENDERBUFFER, (GLuint)depth_renderbuffer );
glRenderbufferStorage( GL_RENDERBUFFER, GL_DEPTH_COMPONENT, fbo_width, fbo_height );
glBindRenderbuffer( GL_RENDERBUFFER, 0 );

// Build the framebuffer.
GLuint framebuffer;
glGenFramebuffers(1, &framebuffer);
glBindFramebuffer(GL_FRAMEBUFFER, (GLuint)framebuffer);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, color_renderbuffer);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, depth_renderbuffer);

GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
if (status != GL_FRAMEBUFFER_COMPLETE)
    // Error

glBindFramebuffer(GL_FRAMEBUFFER, 0);

Tutorials

Songho - OpenGL Frame Buffer Object (FBO)
open.gl - Framebuffers
opengl-tutorial.org - Tutorial 14 : Render To Texture

See Also

glGenRenderbuffers, glBindRenderbuffer, glRenderbufferStorageMultisample, glFramebufferRenderbuffer, glDeleteRenderbuffers