VkRenderingInputAttachmentIndexInfo

The VkRenderingInputAttachmentIndexInfo structure is defined as:

typedef struct VkRenderingInputAttachmentIndexInfo {
    VkStructureType sType;
    const void* pNext;
    uint32_t colorAttachmentCount;
    const uint32_t* pColorAttachmentInputIndices;
    const uint32_t* pDepthInputAttachmentIndex;
    const uint32_t* pStencilInputAttachmentIndex;
} VkRenderingInputAttachmentIndexInfo;

or the equivalent

typedef VkRenderingInputAttachmentIndexInfo VkRenderingInputAttachmentIndexInfoKHR;

• sType is a VkStructureType value identifying this structure.
• pNext is NULL or a pointer to a structure extending this structure.
• colorAttachmentCount is the number of elements in pColorAttachmentInputIndices.
• pColorAttachmentInputIndices is a pointer to an array of colorAttachmentCount uint32_t values defining indices for color attachments to be used as input attachments.
• pDepthInputAttachmentIndex is either NULL, or a pointer to a uint32_t value defining the index for the depth attachment to be used as an input attachment.
• pStencilInputAttachmentIndex is either NULL, or a pointer to a uint32_t value defining the index for the stencil attachment to be used as an input attachment.

This structure allows applications to remap attachments to different input attachment indices.

Each element of pColorAttachmentInputIndices set to a value of VK_ATTACHMENT_UNUSED indicates that the corresponding attachment will not be used as an input attachment in this pipeline. Any other value in each of those elements will map the corresponding attachment to a InputAttachmentIndex value defined in shader code.

If pColorAttachmentInputIndices is NULL, it is equivalent to setting each element to its index within the array.

If pDepthInputAttachmentIndex or pStencilInputAttachmentIndex are set to NULL, they map to input attachments without a InputAttachmentIndex decoration. If they point to a value of VK_ATTACHMENT_UNUSED, it indicates that the corresponding attachment will not be used as an input attachment in this pipeline. If they point to any other value it maps the corresponding attachment to a InputAttachmentIndex value defined in shader code.

This structure can be included in the pNext chain of a VkGraphicsPipelineCreateInfo structure to set this state for a pipeline. If this structure is not included in the pNext chain of VkGraphicsPipelineCreateInfo, it is equivalent to specifying this structure with the following properties:

• colorAttachmentCount set to VkPipelineRenderingCreateInfo::colorAttachmentCount.
• pColorAttachmentInputIndices set to NULL.
• pDepthInputAttachmentIndex set to NULL.
• pStencilInputAttachmentIndex set to NULL.

This structure can be included in the pNext chain of a VkCommandBufferInheritanceInfo structure to specify inherited state from the primary command buffer. If this structure is not included in the pNext chain of VkCommandBufferInheritanceInfo, it is equivalent to specifying this structure with the following properties:

• colorAttachmentCount set to VkCommandBufferInheritanceRenderingInfo::colorAttachmentCount.
• pColorAttachmentInputIndices set to NULL.
• pDepthInputAttachmentIndex set to NULL.
• pStencilInputAttachmentIndex set to NULL.