Contact
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Vikram Kushwaha [GitHub]vkushwaha 
Other Extension Metadata
- Last Modified Date
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2025-01-03 
- Interactions and External Dependencies
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This extension requires SPV_NV_linear_swept_spheres
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This extension provides API support for GL_NV_linear_swept_spheres
 
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- Contributors
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Vikram Kushwaha, NVIDIA 
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Eric Werness, NVIDIA 
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Daniel Koch, NVIDIA 
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Ashwin Lele, NVIDIA 
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Nathan Morrical, NVIDIA 
 
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Description
This extension adds two new primitives for ray tracing: a sphere primitive and a linear swept sphere (LSS) primitive. The purpose of the LSS primitive is to enable rendering of high quality hair and fur using a compact primitive representation encoded in the acceleration structure. Sphere primitives are defined by a position and a radius and are a subset of LSS, but are useful in their own right, for example for particle systems.
This extension adds support for the following SPIR-V extension in Vulkan:
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SPV_NV_linear_swept_spheres
New Enum Constants
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VK_NV_RAY_TRACING_LINEAR_SWEPT_SPHERES_EXTENSION_NAME
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VK_NV_RAY_TRACING_LINEAR_SWEPT_SPHERES_SPEC_VERSION
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Extending VkFormatFeatureFlagBits2: - 
VK_FORMAT_FEATURE_2_ACCELERATION_STRUCTURE_RADIUS_BUFFER_BIT_NV
 
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Extending VkGeometryTypeKHR: - 
VK_GEOMETRY_TYPE_LINEAR_SWEPT_SPHERES_NV
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VK_GEOMETRY_TYPE_SPHERES_NV
 
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Extending VkPipelineCreateFlagBits2: - 
VK_PIPELINE_CREATE_2_RAY_TRACING_ALLOW_SPHERES_AND_LINEAR_SWEPT_SPHERES_BIT_NV
 
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Extending VkStructureType: - 
VK_STRUCTURE_TYPE_ACCELERATION_STRUCTURE_GEOMETRY_LINEAR_SWEPT_SPHERES_DATA_NV
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VK_STRUCTURE_TYPE_ACCELERATION_STRUCTURE_GEOMETRY_SPHERES_DATA_NV
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VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_RAY_TRACING_LINEAR_SWEPT_SPHERES_FEATURES_NV
 
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Document Notes
For more information, see the Vulkan Specification
This page is a generated document. Fixes and changes should be made to the generator scripts, not directly.