// All destination textures must be exactly of size <width> x <height>,
// and must either come from the same ResourcePool the effect uses, or outlive
// the EffectChain (otherwise, we could be allocating FBOs that end up being
// All destination textures must be exactly of size <width> x <height>,
// and must either come from the same ResourcePool the effect uses, or outlive
// the EffectChain (otherwise, we could be allocating FBOs that end up being