graphics - Practical use of VK_ACCESS_COLOR_ATTACHMENT_READ_BIT alone

Question

Is there any practical use of VK_ACCESS_COLOR_ATTACHMENT_READ_BIT / VK_ACCESS_COLOR_ATTACHMENT_READ_NONCOHERENT_BIT_EXT alone? Basically, these access bits exist for blending and logic operations, thus they make sense only in conjunction with VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT. Am I missing something?

Answer 1

VK_ATTACHMENT_LOAD_OP_LOAD uses only VK_ACCESS_COLOR_ATTACHMENT_READ_BIT.