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Enum

VkOpacityMicromapSpecialIndexEXT

Enum for special indices in the opacity micromap

The VkOpacityMicromapSpecialIndexEXT enumeration is defined as:

typedef enum VkOpacityMicromapSpecialIndexEXT {
    VK_OPACITY_MICROMAP_SPECIAL_INDEX_FULLY_TRANSPARENT_EXT = -1,
    VK_OPACITY_MICROMAP_SPECIAL_INDEX_FULLY_OPAQUE_EXT = -2,
    VK_OPACITY_MICROMAP_SPECIAL_INDEX_FULLY_UNKNOWN_TRANSPARENT_EXT = -3,
    VK_OPACITY_MICROMAP_SPECIAL_INDEX_FULLY_UNKNOWN_OPAQUE_EXT = -4,
} VkOpacityMicromapSpecialIndexEXT;
  • VK_OPACITY_MICROMAP_SPECIAL_INDEX_FULLY_TRANSPARENT_EXT specifies that the entire triangle is fully transparent.
  • VK_OPACITY_MICROMAP_SPECIAL_INDEX_FULLY_OPAQUE_EXT specifies that the entire triangle is fully opaque.
  • VK_OPACITY_MICROMAP_SPECIAL_INDEX_FULLY_UNKNOWN_TRANSPARENT_EXT specifies that the entire triangle is unknown-transparent.
  • VK_OPACITY_MICROMAP_SPECIAL_INDEX_FULLY_UNKNOWN_OPAQUE_EXT specifies that the entire triangle is unknown-opaque.
  • VK_OPACITY_MICROMAP_SPECIAL_INDEX_CLUSTER_GEOMETRY_DISABLE_OPACITY_MICROMAP_NV specifies that Opacity Micromap will be disabled for this triangle and opacity value will be picked from VkClusterAccelerationStructureBuildTriangleClusterInfoNV::baseGeometryIndexAndGeometryFlags instead. Note that this special index is only valid for Cluster Geometry.