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private void Clear()
    {
        if (rt != null)
        {
            var cmd = new CommandBuffer();
            cmd.SetRenderTarget(rt);
            cmd.ClearRenderTarget(true, true, Color.clear);
            Graphics.ExecuteCommandBuffer(cmd);
            cmd.Dispose();
        }
    }

[ContextMenu(nameof(Clear))]
private void Clear()
{
    if (rt != null)
    {
        var cmd = new CommandBuffer();
        cmd.SetRenderTarget(rt);
        cmd.ClearRenderTarget(true, true, Color.clear);
        Graphics.ExecuteCommandBuffer(cmd);
        cmd.Dispose();
    }
}

var cmd = new CommandBuffer();  
 cmd.SetRenderTarget(rt);  
 cmd.ClearRenderTarget(true, true, Color.clear);
Graphics.ExecuteCommandBuffer(cmd);
cmd.Dispose();

private void Clear()
    {
        if (rt != null)
        {
            var cmd = new CommandBuffer(); 
            cmd.SetRenderTarget(rt); 
            cmd.ClearRenderTarget(true, true, Color.clear);
            Graphics.ExecuteCommandBuffer(cmd);
            cmd.Dispose();
        }
    }

var cmd = new CommandBuffer();  
cmd.SetRenderTarget(rt);  
cmd.ClearRenderTarget(true, true, Color.clear); <br>
Graphics.ExecuteCommandBuffer(cmd); <br>
cmd.Dispose();

var cmd = new CommandBuffer();  
cmd.SetRenderTarget(rt);  
cmd.ClearRenderTarget(true, true, Color.clear);
Graphics.ExecuteCommandBuffer(cmd);
cmd.Dispose();