flush.cs

        void Flush()
        {
            GraphicsDevice.UpdateBuffer(vertexBuffer, 0, Vertices);
            GraphicsDevice.UpdateBuffer(indexBuffer, 0, Indices);

            CommandList.Begin();

            CommandList.SetFramebuffer(Framebuffer);

            if (Framebuffer.DepthTarget != null)
                CommandList.ClearDepthStencil(1.0f);
            CommandList.UpdateBuffer(MVP, 0, Matrix);
            CommandList.SetVertexBuffer(0, vertexBuffer);
            CommandList.SetIndexBuffer(indexBuffer, IndexFormat.UInt16);

            CommandList.SetPipeline(Pipeline);
            CommandList.SetGraphicsResourceSet(0, _textureResourceSet);
            CommandList.SetGraphicsResourceSet(1, _uniformResourceSet);
            CommandList.DrawIndexed(
                indexCount: (uint)IndicesIndex,
                instanceCount: 1,
                indexStart: 0,
                vertexOffset: 0,
                instanceStart: 0);

            CommandList.End();
            GraphicsDevice.SubmitCommands(CommandList);
        }