#'Compute Task Pool (0)' panicked at 'Buffer Valid((0, 1, Vulkan)) is still mapped'

5 messages · Page 1 of 1 (latest)

ruby rapids
#

Currently im trying to parse data out of a buffer from a compute shader, but im running into this error wich I've not been able to resolve

# 
    let mut encoder = render_device.create_command_encoder(&CommandEncoderDescriptor { 
        label: Some("marching cube command encoder") 
    });

    {    
        let mut encoder_pass = encoder.begin_compute_pass(&ComputePassDescriptor {
            label: Some("marching cube compute pass"),
        });

        // -- Dispatch the compute shader
        encoder_pass.set_pipeline(&pipeline.pipeline);
        encoder_pass.set_bind_group(0, &binding_groups, &[]);
        encoder_pass.dispatch_workgroups(8,8,1);
    }

    let command_buffer = encoder.finish();
    render_queue.submit([command_buffer]);
    


    let slice = buffers.vertex.slice(..);
    slice.map_async(MapMode::Read, move |result| {
        let err = result.err();
        if err.is_some() {
            panic!("{}", err.unwrap().to_string());
        }
    });
    
    let data = slice.get_mapped_range();
    let result = Vec::from(data.deref());
    drop(data);
#

Feel free to tag me if you are interested in helping, any help would be greatly appreciated

thick lion