C Specification
Bits which can be set in
VkPartitionedAccelerationStructureWriteInstanceDataNV::instanceFlags,
specifying flags for instances, are:
// Provided by VK_NV_partitioned_acceleration_structure
typedef enum VkPartitionedAccelerationStructureInstanceFlagBitsNV {
VK_PARTITIONED_ACCELERATION_STRUCTURE_INSTANCE_FLAG_TRIANGLE_FACING_CULL_DISABLE_BIT_NV = 0x00000001,
VK_PARTITIONED_ACCELERATION_STRUCTURE_INSTANCE_FLAG_TRIANGLE_FLIP_FACING_BIT_NV = 0x00000002,
VK_PARTITIONED_ACCELERATION_STRUCTURE_INSTANCE_FLAG_FORCE_OPAQUE_BIT_NV = 0x00000004,
VK_PARTITIONED_ACCELERATION_STRUCTURE_INSTANCE_FLAG_FORCE_NO_OPAQUE_BIT_NV = 0x00000008,
VK_PARTITIONED_ACCELERATION_STRUCTURE_INSTANCE_FLAG_ENABLE_EXPLICIT_BOUNDING_BOX_NV = 0x00000010,
} VkPartitionedAccelerationStructureInstanceFlagBitsNV;Description
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VK_PARTITIONED_ACCELERATION_STRUCTURE_INSTANCE_FLAG_TRIANGLE_FACING_CULL_DISABLE_BIT_NV disables face culling for this instance.
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VK_PARTITIONED_ACCELERATION_STRUCTURE_INSTANCE_FLAG_TRIANGLE_FLIP_FACING_BIT_NV specifies that the facing determination for geometry in this instance is inverted.
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VK_PARTITIONED_ACCELERATION_STRUCTURE_INSTANCE_FLAG_FORCE_OPAQUE_BIT_NV causes this instance to act as though VK_GEOMETRY_OPAQUE_BIT_KHR were specified on all geometries referenced by this instance.
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VK_PARTITIONED_ACCELERATION_STRUCTURE_INSTANCE_FLAG_FORCE_NO_OPAQUE_BIT_NV causes this instance to act as though VK_GEOMETRY_OPAQUE_BIT_KHR were not specified on all geometries referenced by this instance.
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VK_PARTITIONED_ACCELERATION_STRUCTURE_INSTANCE_FLAG_ENABLE_EXPLICIT_BOUNDING_BOX_NV enables use of an explicit bounding box for this instance.
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.