VkRenderPassFragmentDensityMapOffsetEndInfoEXT

If the VkSubpassEndInfo::pNext chain or VkRenderingEndInfoEXT::pNext chain includes a VkRenderPassFragmentDensityMapOffsetEndInfoEXT structure, then that structure includes an array of fragment density map offsets per layer for the render pass.

The VkRenderPassFragmentDensityMapOffsetEndInfoEXT structure is defined as:

typedef struct VkRenderPassFragmentDensityMapOffsetEndInfoEXT {
    VkStructureType sType;
    const void* pNext;
    uint32_t fragmentDensityOffsetCount;
    const VkOffset2D* pFragmentDensityOffsets;
} VkRenderPassFragmentDensityMapOffsetEndInfoEXT;

or the equivalent:

typedef VkRenderPassFragmentDensityMapOffsetEndInfoEXT VkSubpassFragmentDensityMapOffsetEndInfoQCOM;

• sType is a VkStructureType value identifying this structure.
• pNext is NULL or a pointer to a structure extending this structure.
• fragmentDensityOffsetCount is the number of offsets being specified.
• pFragmentDensityOffsets is a pointer to an array of VkOffset2D structs, each of which describes the offset per layer.

The array elements are given per layer as defined by Fetch Density Value, where index = layer. Each (x,y) offset is in framebuffer pixels and shifts the fetch of the fragment density map by that amount. Offsets can be positive or negative.

Offset values specified for any subpass that is not the last subpass in the render pass are ignored. If neither the VkSubpassEndInfo::pNext chain for the last subpass of a render pass nor the VkRenderingEndInfoEXT::pNext chain of a dynamic render pass include VkRenderPassFragmentDensityMapOffsetEndInfoEXT, or if fragmentDensityOffsetCount is zero, then the offset (0,0) is used for Fetch Density Value.

If the render pass instance was begun with VK_RENDERING_SUSPENDING_BIT, then any VkRenderPassFragmentDensityMapOffsetEndInfoEXT structure is ignored. If the render pass instance was begun with VK_RENDERING_RESUMING_BIT but not VK_RENDERING_SUSPENDING_BIT, then the offsets in VkRenderPassFragmentDensityMapOffsetEndInfoEXT apply to all of the preceding suspended render pass instances in submission order.