VK_KHR_shader_quad_control

Other Extension Metadata

Last Modified Date

2023-11-01

IP Status

No known IP claims.

Contributors

• Tobias Hector, AMD
• Bill Licea-Kane, Qualcomm
• Graeme Leese, Broadcom
• Jan-Harald Fredriksen, Arm
• Nicolai Hähnle, AMD
• Jeff Bolz, NVidia
• Alan Baker, Google
• Hans-Kristian Arntzen, Valve

Description

This extension adds new quad any/all operations, requires that derivatives are well-defined in quad-uniform control flow, and adds the ability to require helper invocations participate in group operations.

New Structures

• Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo:
  • VkPhysicalDeviceShaderQuadControlFeaturesKHR

New Enum Constants

• VK_KHR_SHADER_QUAD_CONTROL_EXTENSION_NAME
• VK_KHR_SHADER_QUAD_CONTROL_SPEC_VERSION
• Extending VkStructureType:
  • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_QUAD_CONTROL_FEATURES_KHR

New SPIR-V Capabilities

• QuadControlKHR

Version History

• Revision 1, 2023-11-01 (Tobias Hector)
  • Initial draft