Layered Rendering
When rendering into a framebuffer object, it is possible to use a 2D array texture as a color attachment and render into the slices of the array using a geometry shader. To create a 2D array texture and attach it to a framebuffer object, use code such as that shown in Example 10.24.
// Declare variablesGLuint tex; // This will be the 2D array textureGLuint fbo; // The framebuffer object// Create and allocate a 1024x1024x32 2D array textureglGenTextures(1, &tex);glBindTexture(GL_TEXTURE_2D_ARRAY, tex);glTexImage3D(GL_TEXTURE_2D_ARRAY, 0, GL_RGBA, 1024, 1024, ...
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