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Structures

VkMicromapTriangleEXT

Structure specifying the micromap format and data for a triangle

The VkMicromapTriangleEXT structure is defined as:

typedef struct VkMicromapTriangleEXT {
    uint32_t dataOffset;
    uint16_t subdivisionLevel;
    uint16_t format;
} VkMicromapTriangleEXT;
  • dataOffset is the offset in bytes of the start of the data for this triangle. This is a byte aligned value.
  • subdivisionLevel is the subdivision level of this triangle
  • format is the format of this triangle

Valid Usage

VUID-VkMicromapTriangleEXT-format-07522

If the VkMicromapTypeEXT of the micromap is VK_MICROMAP_TYPE_OPACITY_MICROMAP_EXT then format must be VK_OPACITY_MICROMAP_FORMAT_2_STATE_EXT or VK_OPACITY_MICROMAP_FORMAT_4_STATE_EXT

VUID-VkMicromapTriangleEXT-format-07523

If the VkMicromapTypeEXT of the micromap is VK_MICROMAP_TYPE_OPACITY_MICROMAP_EXT and format is VK_OPACITY_MICROMAP_FORMAT_2_STATE_EXT then subdivisionLevelmust be less than or equal to VkPhysicalDeviceOpacityMicromapPropertiesEXT::maxOpacity2StateSubdivisionLevel

VUID-VkMicromapTriangleEXT-format-07524

If the VkMicromapTypeEXT of the micromap is VK_MICROMAP_TYPE_OPACITY_MICROMAP_EXT and format is VK_OPACITY_MICROMAP_FORMAT_4_STATE_EXT then subdivisionLevelmust be less than or equal to VkPhysicalDeviceOpacityMicromapPropertiesEXT::maxOpacity4StateSubdivisionLevel

VUID-VkMicromapTriangleEXT-format-08708

If the VkMicromapTypeEXT of the micromap is VK_MICROMAP_TYPE_DISPLACEMENT_MICROMAP_NV then format must be VK_DISPLACEMENT_MICROMAP_FORMAT_64_TRIANGLES_64_BYTES_NV, VK_DISPLACEMENT_MICROMAP_FORMAT_256_TRIANGLES_128_BYTES_NV or VK_DISPLACEMENT_MICROMAP_FORMAT_1024_TRIANGLES_128_BYTES_NV

VUID-VkMicromapTriangleEXT-subdivisionLevel-08709

If the VkMicromapTypeEXT of the micromap is VK_MICROMAP_TYPE_DISPLACEMENT_MICROMAP_NV then subdivisionLevel must be less than or equal to VkPhysicalDeviceDisplacementMicromapPropertiesNV::maxDisplacementMicromapSubdivisionLevel

The format is interpreted based on the type of the micromap using it.