VkOpacityMicromapFormatEXT

Formats which can be set in VkMicromapUsageEXT::format and VkMicromapTriangleEXT::format for micromap builds, are:

typedef enum VkOpacityMicromapFormatEXT {
    VK_OPACITY_MICROMAP_FORMAT_2_STATE_EXT = 1,
    VK_OPACITY_MICROMAP_FORMAT_4_STATE_EXT = 2,
} VkOpacityMicromapFormatEXT;

• VK_OPACITY_MICROMAP_FORMAT_2_STATE_EXT specifies that the given micromap format has one bit per subtriangle encoding either fully opaque or fully transparent.
• VK_OPACITY_MICROMAP_FORMAT_4_STATE_EXT specifies that the given micromap format has two bits per subtriangle encoding four modes which can be interpreted as described in ray traversal.