Framebuffer cache manager for Rendering Device based renderers. Framebuffer cache manager for Rendering Device based renderers. Provides a way to create a framebuffer and reuse it in subsequent calls for as long as the used textures exists. Framebuffers will automatically be cleaned up when dependent objects are freed. Creates, or obtains a cached, framebuffer. [param textures] lists textures accessed. [param passes] defines the subpasses and texture allocation, if left empty a single pass is created and textures are allocated depending on their usage flags. [param views] defines the number of views used when rendering.