Function rendy::graph::gfx_acquire_barriers

pub fn gfx_acquire_barriers<'b, B>(
    ctx: &'a GraphContext<B>, 
    buffers: impl IntoIterator<Item = &'b NodeBuffer>, 
    images: impl IntoIterator<Item = &'b NodeImage>
) -> (Range<PipelineStage>, Vec<Barrier<'a, B>>) where
    B: Backend, 

Convert graph barriers into gfx barriers.