C Specification
Formats which can be set in VkMicromapUsageKHR::format and
VkMicromapTriangleKHR::format for micromap builds, are:
// Provided by VK_KHR_opacity_micromap
typedef enum VkOpacityMicromapFormatKHR {
VK_OPACITY_MICROMAP_FORMAT_2_STATE_KHR = 1,
VK_OPACITY_MICROMAP_FORMAT_4_STATE_KHR = 2,
// Provided by VK_EXT_opacity_micromap
VK_OPACITY_MICROMAP_FORMAT_2_STATE_EXT = VK_OPACITY_MICROMAP_FORMAT_2_STATE_KHR,
// Provided by VK_EXT_opacity_micromap
VK_OPACITY_MICROMAP_FORMAT_4_STATE_EXT = VK_OPACITY_MICROMAP_FORMAT_4_STATE_KHR,
} VkOpacityMicromapFormatKHR;// Provided by VK_EXT_opacity_micromap
// Equivalent to VkOpacityMicromapFormatKHR
typedef VkOpacityMicromapFormatKHR VkOpacityMicromapFormatEXT;Description
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VK_OPACITY_MICROMAP_FORMAT_2_STATE_KHR specifies that the given micromap format has one bit per subtriangle encoding either fully opaque or fully transparent.
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VK_OPACITY_MICROMAP_FORMAT_4_STATE_KHR specifies that the given micromap format has two bits per subtriangle encoding four modes which can be interpreted as described in Ray Opacity Micromap.
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Note
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For compactness, these values are stored as 16-bit in some structures. |
Document Notes
For more information, see the Vulkan Specification.
This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.