Vulkan.Extensions.VK_AMDX_dense_geometry_format

VkPhysicalDeviceDenseGeometryFormatFeaturesAMDX - Structure describing dense geometry format features that can be supported by an implementation

Members

This structure describes the following feature:

Description

If the PhysicalDeviceDenseGeometryFormatFeaturesAMDX structure is included in the pNext chain of the PhysicalDeviceFeatures2 structure passed to getPhysicalDeviceFeatures2, it is filled in to indicate whether each corresponding feature is supported. If the application wishes to use a Device with any features described by PhysicalDeviceDenseGeometryFormatFeaturesAMDX, it must add an instance of the structure, with the desired feature members set to TRUE, to the pNext chain of DeviceCreateInfo when creating the Device.

Structure Chaining

Extends the structures

• DeviceCreateInfo

• PhysicalDeviceFeatures2

See Also

VK_AMDX_dense_geometry_format, Bool32, StructureType

VkAccelerationStructureDenseGeometryFormatTrianglesDataAMDX - Structure specifying acceleration structure DGF compressed triangle data

Description

If format is COMPRESSED_TRIANGLE_FORMAT_DGF1_AMDX, numVertices specifies the sum of vertex counts across all blocks.

Valid Usage

• The buffer from which compressedData.deviceAddress is queried must have been created with the BUFFER_USAGE_2_COMPRESSED_DATA_DGF1_BIT_AMDX usage flag set

• The ::denseGeometryFormat feature must be enabled

• If format is VK_COMPRESSED_TRIANGLE_FORMAT_DGF1_AMDX, then compressedData must be aligned to COMPRESSED_TRIANGLE_FORMAT_DGF1_BYTE_ALIGNMENT_AMDX (128) bytes

• If format is VK_COMPRESSED_TRIANGLE_FORMAT_DGF1_AMDX, then dataSize must be a multiple of COMPRESSED_TRIANGLE_FORMAT_DGF1_BYTE_STRIDE_AMDX (128) bytes

Valid Usage (Implicit)

• sType must be STRUCTURE_TYPE_ACCELERATION_STRUCTURE_DENSE_GEOMETRY_FORMAT_TRIANGLES_DATA_AMDX

• compressedData must be a valid DeviceOrHostAddressConstKHR union

• format must be a valid CompressedTriangleFormatAMDX value

Structure Chaining

Extends the structure

• AccelerationStructureGeometryKHR

See Also

VK_AMDX_dense_geometry_format, CompressedTriangleFormatAMDX, DeviceOrHostAddressConstKHR, DeviceSize, StructureType

VkCompressedTriangleFormatAMDX - Available compressed triangle formats

Description

• COMPRESSED_TRIANGLE_FORMAT_DGF1_AMDX specifies that the compressed triangle data is in Dense Geometry Format, version 1, consisting of an array of 128B DGF blocks.

See Also

VK_AMDX_dense_geometry_format, AccelerationStructureDenseGeometryFormatTrianglesDataAMDX

VkGeometryTypeKHR - Enum specifying which type of geometry is provided

Description

• GEOMETRY_TYPE_TRIANGLES_KHR specifies a geometry type consisting of triangles.

• GEOMETRY_TYPE_AABBS_KHR specifies a geometry type consisting of axis-aligned bounding boxes.

• GEOMETRY_TYPE_INSTANCES_KHR specifies a geometry type consisting of acceleration structure instances.

• GEOMETRY_TYPE_DENSE_GEOMETRY_FORMAT_TRIANGLES_AMDX specifies a geometry type consisting of triangles from compressed data.

• GEOMETRY_TYPE_SPHERES_NV specifies a geometry type consisting of spheres.

• GEOMETRY_TYPE_LINEAR_SWEPT_SPHERES_NV specifies a geometry type consisting of linear swept spheres.

• VK_GEOMETRY_TYPE_MICROMAP_KHR specifies a geometry type consisting of a micromap array.

See Also

VK_KHR_acceleration_structure, VK_NV_ray_tracing, AccelerationStructureGeometryKHR, GeometryNV

VK_COMPRESSED_TRIANGLE_FORMAT_DGF1_BYTE_ALIGNMENT_AMDX - Alignment requirement for DGF1 compressed data

See Also

VK_AMDX_dense_geometry_format

VK_COMPRESSED_TRIANGLE_FORMAT_DGF1_BYTE_STRIDE_AMDX - Alignment requirement for DGF1 compressed data

See Also

VK_AMDX_dense_geometry_format