What does CameraOutputMode::Write fields do

[EvgenHi]

After playing with 3d/two_passes example I got that I can disable some cameras in multiple camera setup by changing the CameraOutputMode enum to CameraOutputMode::Skip, but when I want to turn the camera back on I need to set CameraOutputMode::Write variant which requires blend_state and color_attachment_load_op fields to be explicitly specified. I tried to play with different values in these fields but didn't find any difference. So my question is: how blend_state and color_attachment_load_op affects the render or what they even do?